Aim: The aim of this in vitro study was to compare the antimicrobial effect of double antibiotic paste with that of bromelain and calcium hydroxide in eradication of E. faecalis. Hypothesis: we hypothesized that Bromelain may act as an intracanal medicament. Materials and methods: For this study, 40 extracted human teeth were used. After their decapitation, they were initially instrumented to reach 20 K-file, later they were separated into one control and three experimental groups (n=10) according to the medicament used; Group 1: Bromelain paste, Group 2: Control group, canals were left without any medicament, Group 3: Calcium hydroxide (CH)and Group 4: Double antibiotic paste (DAP). Preparation of all samples was done using Step- back technique to reach #50 file, irrigation using sodium hypochlorite solution of 2.6% concentration and EDTA, then intracanal medicaments were applied. First sample (S1) was collected after inoculation of bacteria into root canals. Second sample (S2) was collected after undergoing instrumentation and irrigation. Third sample (S3) was taken following application of medicament. Sterile cotton pellet and temporary restoration were then applied for seven days. Broth Heart Infusion (BHI) agar was used for culturing of samples then went under incubation to count Colony Forming Unit (CFU's). Results: Regarding S1 samples (after inoculation of bacteria) and S2 (after undergoing instrumentation and irrigation). In all groups, there was no statistically significant difference between them. While S 3 samples showed statistically significant difference in all groups. S3 Samples in Bromelain group showed the least statistically significant bacterial count followed by double antibiotic paste then calcium hydroxide group while S3 samples in negative control group showed the highest statistically significant bacterial count. Conclusion: Bromelain was found as an effective herbal intracanal medicament as it gives superior antimicrobial property compared to other intracanal medicaments. Clinical significance: Intracanal medicament from herbal sources like Bromelain is recommended for root canal disinfection as it has a promising effect with less side effect compared with other intracanal medicaments.
{"title":"Comparative evaluation of bromelain, double antibiotic paste, and calcium hydroxide as intracanal medicaments against Enterococcus faecalis: an in-vitro study","authors":"Huda El Gendi, M. Hamdy","doi":"10.4103/tdj.tdj_57_22","DOIUrl":"https://doi.org/10.4103/tdj.tdj_57_22","url":null,"abstract":"Aim: The aim of this in vitro study was to compare the antimicrobial effect of double antibiotic paste with that of bromelain and calcium hydroxide in eradication of E. faecalis. Hypothesis: we hypothesized that Bromelain may act as an intracanal medicament. Materials and methods: For this study, 40 extracted human teeth were used. After their decapitation, they were initially instrumented to reach 20 K-file, later they were separated into one control and three experimental groups (n=10) according to the medicament used; Group 1: Bromelain paste, Group 2: Control group, canals were left without any medicament, Group 3: Calcium hydroxide (CH)and Group 4: Double antibiotic paste (DAP). Preparation of all samples was done using Step- back technique to reach #50 file, irrigation using sodium hypochlorite solution of 2.6% concentration and EDTA, then intracanal medicaments were applied. First sample (S1) was collected after inoculation of bacteria into root canals. Second sample (S2) was collected after undergoing instrumentation and irrigation. Third sample (S3) was taken following application of medicament. Sterile cotton pellet and temporary restoration were then applied for seven days. Broth Heart Infusion (BHI) agar was used for culturing of samples then went under incubation to count Colony Forming Unit (CFU's). Results: Regarding S1 samples (after inoculation of bacteria) and S2 (after undergoing instrumentation and irrigation). In all groups, there was no statistically significant difference between them. While S 3 samples showed statistically significant difference in all groups. S3 Samples in Bromelain group showed the least statistically significant bacterial count followed by double antibiotic paste then calcium hydroxide group while S3 samples in negative control group showed the highest statistically significant bacterial count. Conclusion: Bromelain was found as an effective herbal intracanal medicament as it gives superior antimicrobial property compared to other intracanal medicaments. Clinical significance: Intracanal medicament from herbal sources like Bromelain is recommended for root canal disinfection as it has a promising effect with less side effect compared with other intracanal medicaments.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"59 4 1","pages":"42 - 46"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73390352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose To study the effect of thickness difference on color change of glass ceramic materials. Patients and methods Sixty three specimens were divided according to type of the material into three groups (n = 21) as follow Leucite based glass-ceramic (IPS Empress CAD), lithium disilicate based glass ceramic (IPS EMAX CAD), zirconia reinforced glass ceramic (celtra duo) and each group was further subdivided into three subgroups according to thickness (0.7, 1, 1.2 mm) seven each. The specimens were sawed by using linear precision saw, were square in shape and their dimension was 10 mm of length, 10 mm of width and three difference thicknesses (0.7, 1, 1.2 mm). The final thickness of specimens was confirmed with a digital caliper for standardization. Each group of specimens was finished according to its material manufacturer instruction, Cary 5000 Spectrophotometer provided from Agilent Technologies was used to measure color difference. One-way analysis of variance used to compare materials after glazing, multiple comparison Tukey test to compare each two materials. Results There was significant difference between all groups. At color width 0.7 and 1 mm, Celtra duo recorded the lowest color difference value while Empress recorded the highest color difference value. There was highly significant difference after glazing between materials where P value more than 0,001. At color width 0.7 and 1.2 mm, there was a highly significant difference after glazing between materials where P value is 0.001. Celtra duo showed the lowest color difference value while Emax and Empress showed equal values where P value more than 0.993. At color width 1 and 1.2 mm, Empress recorded the lowest color difference while Emax recorded the highest value. There was a highly significant difference between Emax versus Empress and Celtra duo versus Empress where P value was 0.001. On the other hand there was no significance recorded between Emax vs celtra duo where (P > 0.984). Conclusion Masking abilities of glass ceramic are affected by ceramic thicknesses, background colors. The masking ability of glass ceramics tends to improve with greater thickness, while translucency decreased.
{"title":"Influence of thickness difference on color change of contemporary Computer Aided Designing/Computer Aided Manufacturing glass-ceramic materials","authors":"Ahmed El Shazely, M. Kamel, Fatma Hasnain","doi":"10.4103/tdj.tdj_43_22","DOIUrl":"https://doi.org/10.4103/tdj.tdj_43_22","url":null,"abstract":"Purpose To study the effect of thickness difference on color change of glass ceramic materials. Patients and methods Sixty three specimens were divided according to type of the material into three groups (n = 21) as follow Leucite based glass-ceramic (IPS Empress CAD), lithium disilicate based glass ceramic (IPS EMAX CAD), zirconia reinforced glass ceramic (celtra duo) and each group was further subdivided into three subgroups according to thickness (0.7, 1, 1.2 mm) seven each. The specimens were sawed by using linear precision saw, were square in shape and their dimension was 10 mm of length, 10 mm of width and three difference thicknesses (0.7, 1, 1.2 mm). The final thickness of specimens was confirmed with a digital caliper for standardization. Each group of specimens was finished according to its material manufacturer instruction, Cary 5000 Spectrophotometer provided from Agilent Technologies was used to measure color difference. One-way analysis of variance used to compare materials after glazing, multiple comparison Tukey test to compare each two materials. Results There was significant difference between all groups. At color width 0.7 and 1 mm, Celtra duo recorded the lowest color difference value while Empress recorded the highest color difference value. There was highly significant difference after glazing between materials where P value more than 0,001. At color width 0.7 and 1.2 mm, there was a highly significant difference after glazing between materials where P value is 0.001. Celtra duo showed the lowest color difference value while Emax and Empress showed equal values where P value more than 0.993. At color width 1 and 1.2 mm, Empress recorded the lowest color difference while Emax recorded the highest value. There was a highly significant difference between Emax versus Empress and Celtra duo versus Empress where P value was 0.001. On the other hand there was no significance recorded between Emax vs celtra duo where (P > 0.984). Conclusion Masking abilities of glass ceramic are affected by ceramic thicknesses, background colors. The masking ability of glass ceramics tends to improve with greater thickness, while translucency decreased.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"12 1","pages":"6 - 11"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89821430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Introduction Traumatic dental injuries (TDI) of permanent anterior teeth is a common dental problem among the children. Pulpal necrosis is the critical result of traumatic dental injury as it makes a challenge in endodontic and restorative procedures. Revascularization is one of most recent treatment of such teeth. Aim The purpose of this study was to evaluate and compare the regenerative potential of the blood clot and collagen sponge as scaffold in revascularization of nonvital immature permanent anterior teeth using biodentine for coronal bacterial tight seal. Materials and methods This study was conducted on 30 anterior teeth on healthy children aged from 7 to 9 years. The selected patients were divided into two groups according to scaffold used: group I (blood clot scaffold) and group II (combined blood clot and collagen scaffold). Clinical and radiographic outcomes were assessed at 3, 6, 9, 12, 15 and 18 months follow up. Results The results revealed that there was no statistically significant difference between the two groups regarding clinical and radiographic outcomes. Conclusion It was concluded that, the revascularization with blood clot and collagen sponge has no significant differences in clinical and radiographic evaluation criteria.
{"title":"Evaluation of blood clot and collagen sponge in regeneration of nonvital immature permanent anterior teeth","authors":"Sara Ismaeal, Fatma Elhendawy, Arafa Khattab","doi":"10.4103/tdj.tdj_25_22","DOIUrl":"https://doi.org/10.4103/tdj.tdj_25_22","url":null,"abstract":"Introduction Traumatic dental injuries (TDI) of permanent anterior teeth is a common dental problem among the children. Pulpal necrosis is the critical result of traumatic dental injury as it makes a challenge in endodontic and restorative procedures. Revascularization is one of most recent treatment of such teeth. Aim The purpose of this study was to evaluate and compare the regenerative potential of the blood clot and collagen sponge as scaffold in revascularization of nonvital immature permanent anterior teeth using biodentine for coronal bacterial tight seal. Materials and methods This study was conducted on 30 anterior teeth on healthy children aged from 7 to 9 years. The selected patients were divided into two groups according to scaffold used: group I (blood clot scaffold) and group II (combined blood clot and collagen scaffold). Clinical and radiographic outcomes were assessed at 3, 6, 9, 12, 15 and 18 months follow up. Results The results revealed that there was no statistically significant difference between the two groups regarding clinical and radiographic outcomes. Conclusion It was concluded that, the revascularization with blood clot and collagen sponge has no significant differences in clinical and radiographic evaluation criteria.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"11 1","pages":"54 - 59"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88779412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose To evaluate the effect of piezo debridement with application of platelet-rich fibrin (PRF) on bone and soft tissue healing in patient with medication-related osteonecrosis of the jaw (MRONJ), both clinically and radiographically. Patients and methods At the Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Tanta University, a prospective noncontrolled clinical study was carried out on eight patients above 30 years old who are proved to have MRONJ clinically and radiographically. Preoperatively, (ampicillin/sulbactam) with a dosage of 1.5 gm vial IV or IM and (doxycycline) 100 mg/capsule once daily were prescribed for all patients one week before surgery. Intraoperative, after surgical exposure of the affected bone, Surgery divided into resecting all the infected and necrotic bone with the piezoelectric vibrating tips connected to the piezoelectric bone surgery device until bleeding spots appear. Autologous PRF was applied, followed by double layer closure of the flap. All patients had postoperative, clinical evaluation of pain, wound healing and recurrence. Lab investigation, including CBC, ESR, C reactive protein was carried out for all patients. Radiographic evaluation was done using Cone Beam Computed Tomography (CBCT) after one-week and after 3 months postoperatively. Results In the first 2 weeks, most patients had complete relief of pain and swelling. Complete healing of the soft tissue was observed in five patients showing normal range of ESR and CRP, and three patients showed partial soft tissue healing and signs of recurrence clinically and radiographically. These findings shown that using piezo debridement combined with PRF has a positive effect on bone and soft tissue healing in patient with MRONJ. Conclusion Piezoelectric bone surgery in combination with PRF is an alternative treatment method in treatment of MRONJ as it provides minimally invasive surgical technique, effective in complete debridement of affected bone tissue and soft tissue.
{"title":"Evaluation of piezoelectric surgery in combination with platelet-rich fibrin for treatment of medication-related osteonecrosis of the Jaw","authors":"MohamedHelmi Alsawaf, MohamedM Shoushan, KhaledAbd-El Hamid Saad, IbrahimM Nowair","doi":"10.4103/tdj.tdj_12_23","DOIUrl":"https://doi.org/10.4103/tdj.tdj_12_23","url":null,"abstract":"Purpose To evaluate the effect of piezo debridement with application of platelet-rich fibrin (PRF) on bone and soft tissue healing in patient with medication-related osteonecrosis of the jaw (MRONJ), both clinically and radiographically. Patients and methods At the Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Tanta University, a prospective noncontrolled clinical study was carried out on eight patients above 30 years old who are proved to have MRONJ clinically and radiographically. Preoperatively, (ampicillin/sulbactam) with a dosage of 1.5 gm vial IV or IM and (doxycycline) 100 mg/capsule once daily were prescribed for all patients one week before surgery. Intraoperative, after surgical exposure of the affected bone, Surgery divided into resecting all the infected and necrotic bone with the piezoelectric vibrating tips connected to the piezoelectric bone surgery device until bleeding spots appear. Autologous PRF was applied, followed by double layer closure of the flap. All patients had postoperative, clinical evaluation of pain, wound healing and recurrence. Lab investigation, including CBC, ESR, C reactive protein was carried out for all patients. Radiographic evaluation was done using Cone Beam Computed Tomography (CBCT) after one-week and after 3 months postoperatively. Results In the first 2 weeks, most patients had complete relief of pain and swelling. Complete healing of the soft tissue was observed in five patients showing normal range of ESR and CRP, and three patients showed partial soft tissue healing and signs of recurrence clinically and radiographically. These findings shown that using piezo debridement combined with PRF has a positive effect on bone and soft tissue healing in patient with MRONJ. Conclusion Piezoelectric bone surgery in combination with PRF is an alternative treatment method in treatment of MRONJ as it provides minimally invasive surgical technique, effective in complete debridement of affected bone tissue and soft tissue.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aim The aim of the present study is to determine the reliability of the lateral cephalometric radiography and orthopantomography in the diagnosis of skeletal maturation for nine to eighteen years old subjects in two populations. Materials and methods A cross-sectional study was performed with a sample of 72 patient records from the Orthodontics Departments at the Autonomous University of Yucatan (southeast of Mexico) and the Autonomous University of the State of Mexico (central Mexico). Patients aged between 9 and 18 years old.Samples were divided into six groups (36 radiographs/group). Groups I and IV were analyzed with Björk, Grave, and Brown's systems, groups II and V with Hassel and Farman methods, and groups III and VI with the Demirjian Index. The degree of intra-observer agreement between all methods of predicting skeletal maturation was measured using the weighted kappa statistics. The correlation between the hand-wrist analysis, cervical vertebrae maturation, and the stages of mandibular second molar was evaluated by the Spearman correlation method. Results The kappa coefficient was 0.919 for hand-wrist analysis, while 0.839 and 0.915 for cervical vertebrae maturation and dental age, respectively. Spearman's (r) correlation values were between GI and GII r = 0.900, GI and GIII r = 0.823, GII and GIII r = 0.826, GIV and GV r = 0.893, GIV and GVI r = 0.862, GV and GVI r = 0.843 with P ≤ 0.05. Conclusion Lateral cephalometric radiography and orthopantomography is effective in determining skeletal maturation.
{"title":"Determining skeletal maturation for subjects from 9-to 18-year-old in two population","authors":"Edith Lara-Carrillo, CarlosFrancisco Cortes-Anzures, Saraí López-González, GabrielEduardo Colomé-Ruíz, CarloEduardo Medina-Solís, VíctorHugo Toral-Rizo, AdrianaAlejandra Morales-Valenzuela, SilviaCristina Manzur-Quiroga, AnaMiriam Santillán-Reyes, ElíasNahúm Salmerón-Valdés, Wael Hegazy-Hassan","doi":"10.4103/tdj.tdj_22_23","DOIUrl":"https://doi.org/10.4103/tdj.tdj_22_23","url":null,"abstract":"Aim The aim of the present study is to determine the reliability of the lateral cephalometric radiography and orthopantomography in the diagnosis of skeletal maturation for nine to eighteen years old subjects in two populations. Materials and methods A cross-sectional study was performed with a sample of 72 patient records from the Orthodontics Departments at the Autonomous University of Yucatan (southeast of Mexico) and the Autonomous University of the State of Mexico (central Mexico). Patients aged between 9 and 18 years old.Samples were divided into six groups (36 radiographs/group). Groups I and IV were analyzed with Björk, Grave, and Brown's systems, groups II and V with Hassel and Farman methods, and groups III and VI with the Demirjian Index. The degree of intra-observer agreement between all methods of predicting skeletal maturation was measured using the weighted kappa statistics. The correlation between the hand-wrist analysis, cervical vertebrae maturation, and the stages of mandibular second molar was evaluated by the Spearman correlation method. Results The kappa coefficient was 0.919 for hand-wrist analysis, while 0.839 and 0.915 for cervical vertebrae maturation and dental age, respectively. Spearman's (r) correlation values were between GI and GII r = 0.900, GI and GIII r = 0.823, GII and GIII r = 0.826, GIV and GV r = 0.893, GIV and GVI r = 0.862, GV and GVI r = 0.843 with P ≤ 0.05. Conclusion Lateral cephalometric radiography and orthopantomography is effective in determining skeletal maturation.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MohamedKamal Eid, EmadEl Said Fahim Essa, RaficRamadan Bedair
Background The main objectives for the management of odontogenic keratocyst (OKC) are the complete eradication of the lesion and thorough curettage to minimize the chance of recurrence. There are many modalities used as adjunctive therapies with varying success using various compounds in the form of thermal and chemical cauterization, which have been used in conjunction with conservative surgical treatment. Purpose This retrospective study aimed to evaluate the effect of topical 5-fluorouracil (5-FU) as an adjunct therapy in reducing the risk of recurrence of OKCs. Patients and methods Twenty-four patients with proven incisional biopsy as odontogenic keratocysts with no relevant systemic diseases were included in this study. The patients were treated with 5-FU cream after enucleation and peripheral ostectomy of the odontogenic keratocyst. Results The radiographic results showed a significant change in bone density at the site of excised lesions compared with immediate postoperative radiographs. No radiological signs of recurrence were found during the follow-up periods. Conclusion Conservative enucleation of OKC combined with topical application of 5- Fluorouracil as a chemical adjunct is an efficient, novel, and promising technique in reducing the recurrence of OKC.
{"title":"Efficacy of adjunct topical application of 5-Fluorouracil in reducing the recurrence of odontogenic keratocyst","authors":"MohamedKamal Eid, EmadEl Said Fahim Essa, RaficRamadan Bedair","doi":"10.4103/tdj.tdj_27_23","DOIUrl":"https://doi.org/10.4103/tdj.tdj_27_23","url":null,"abstract":"Background The main objectives for the management of odontogenic keratocyst (OKC) are the complete eradication of the lesion and thorough curettage to minimize the chance of recurrence. There are many modalities used as adjunctive therapies with varying success using various compounds in the form of thermal and chemical cauterization, which have been used in conjunction with conservative surgical treatment. Purpose This retrospective study aimed to evaluate the effect of topical 5-fluorouracil (5-FU) as an adjunct therapy in reducing the risk of recurrence of OKCs. Patients and methods Twenty-four patients with proven incisional biopsy as odontogenic keratocysts with no relevant systemic diseases were included in this study. The patients were treated with 5-FU cream after enucleation and peripheral ostectomy of the odontogenic keratocyst. Results The radiographic results showed a significant change in bone density at the site of excised lesions compared with immediate postoperative radiographs. No radiological signs of recurrence were found during the follow-up periods. Conclusion Conservative enucleation of OKC combined with topical application of 5- Fluorouracil as a chemical adjunct is an efficient, novel, and promising technique in reducing the recurrence of OKC.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aim This randomized split mouth study evaluated the effect of hyaluronic acid HA gel in a collagen sponge in the treatment of intra-bony periodontal defects. Materials and Methods Twenty sites of intrabony defects in 10 systemically healthy patients with chronic moderate periodontitis were randomly distributed into two groups, 10 sites each. Group I treated with open flap debridement and collagen sponge soaked in placebo gel. Group II treated with open flap debridement and HA gel-soaked collagen sponge. Plaque index (PI), bleeding on probing (BOP), probing pocket depth (PPD), and clinical attachment level (CAL) were measured at baseline, three months after surgery, and six months after that. Cone beam computed tomography was used to assess bone density, defect depth (DD), defect width (DW), and defect area (DA) at baseline and six months after surgery (BD). Results Group II showed statistically significant improvement in plaque index, BOP, PPD and CAL at 3- and 6-month intervals, while group I showed statistically significant improvement regarding all clinical parameters except for CAL at 6 months, showed statistically insignificant increase approximating the baseline value. Intergroup comparison showed statistically significant differences in favour of group II at 3 and 6 months for PPD and CAL while for BOP at 6 months only. At six months, both groups had statistically significant improvements in the radiographic parameters, and intergroup comparison revealed statistically significant differences favouring group II. Conclusion Hyaluronic acid resulted in clinical improvement and radiographic evidence of bone regeneration in the treatment of intra-bony defects in chronic periodontitis patients.
{"title":"Effect of hyaluronic acid with a collagen sponge scaffold in the treatment of intra-bony defects of chronic periodontitis","authors":"IbrahimMohammed ElShammaa, SaharFawzy Ghoraba, MalakYousef Shoukheba","doi":"10.4103/tdj.tdj_10_23","DOIUrl":"https://doi.org/10.4103/tdj.tdj_10_23","url":null,"abstract":"Aim This randomized split mouth study evaluated the effect of hyaluronic acid HA gel in a collagen sponge in the treatment of intra-bony periodontal defects. Materials and Methods Twenty sites of intrabony defects in 10 systemically healthy patients with chronic moderate periodontitis were randomly distributed into two groups, 10 sites each. Group I treated with open flap debridement and collagen sponge soaked in placebo gel. Group II treated with open flap debridement and HA gel-soaked collagen sponge. Plaque index (PI), bleeding on probing (BOP), probing pocket depth (PPD), and clinical attachment level (CAL) were measured at baseline, three months after surgery, and six months after that. Cone beam computed tomography was used to assess bone density, defect depth (DD), defect width (DW), and defect area (DA) at baseline and six months after surgery (BD). Results Group II showed statistically significant improvement in plaque index, BOP, PPD and CAL at 3- and 6-month intervals, while group I showed statistically significant improvement regarding all clinical parameters except for CAL at 6 months, showed statistically insignificant increase approximating the baseline value. Intergroup comparison showed statistically significant differences in favour of group II at 3 and 6 months for PPD and CAL while for BOP at 6 months only. At six months, both groups had statistically significant improvements in the radiographic parameters, and intergroup comparison revealed statistically significant differences favouring group II. Conclusion Hyaluronic acid resulted in clinical improvement and radiographic evidence of bone regeneration in the treatment of intra-bony defects in chronic periodontitis patients.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose This study evaluated the effect of different surface treatments on tensile bond strength of acrylic denture teeth to prepolymerized computer-aided design/computer-aided manufacturing (CAD/CAM) denture base resin (PMMA) under two different storage conditions. Patients and methods 160 test specimens were used in this study, each specimen has two parts: the first part: is an acrylic cross-linked maxillary central incisor denture tooth embedded in acrylic resin blocks, and the second part: is cone shape (5 mm × 5 mm × 3 mm) specimens prepared from prepolymerized PMMA discs by computer numerically controlled (CNC) milling machine under water cooling. Test specimens were divided into four main groups 40 each according to tooth surface treatment. Group I: no sandblasting. Group II: sandblasted using 50 μm aluminum oxide. Group III: sandblasted using 150 μm Al2O3. Group IV: sandblasted using 200 μm Al2O3. Each group was divided into 2 subgroups (A, B) 20 each, subgroup A used resin cement bond first part with the second part. Subgroup B used a bonding agent to bond the first part with the second part. Each subgroup was divided into 10 specimens that were stored in 50 hours of distilled water storage and 10 specimens were thermocycling. All specimens were then subjected to a tensile load using testing machine at a crosshead speed of 1 mm/min until debonding. The resulting debonding forces were recorded and statistically analyzed. For all specimens, the interface was inspected. The interface failures were classified into adhesive and cohesive failures. The data were analyzed using a three-way Analysis of Variance (ANOVA), followed by Tukey's test. Results The highest mean value tensile bond strength was recorded for GIV (6.5 ± 1.46). Sandblasting was improving the tensile bond strength value of all the specimens. Bonding agents without and with surface treatment significantly improved the tensile bond strength of all specimens. The thermocycling significantly decreased the tensile bond strength of all specimens. Conclusion Sandblasting of denture teeth followed by bonding agent improved the tensile bond strength to CAD/CAM denture base. Thermocycling decreased the tensile bond strength of acrylic denture teeth to CAD/CAM denture base.
{"title":"Effect of different surface treatments on tensile bond strength of acrylic denture teeth to CAD/CAM denture base","authors":"RehabA El-Refay, MohamedM El-Sheikh, AmalA Salm","doi":"10.4103/tdj.tdj_24_23","DOIUrl":"https://doi.org/10.4103/tdj.tdj_24_23","url":null,"abstract":"Purpose This study evaluated the effect of different surface treatments on tensile bond strength of acrylic denture teeth to prepolymerized computer-aided design/computer-aided manufacturing (CAD/CAM) denture base resin (PMMA) under two different storage conditions. Patients and methods 160 test specimens were used in this study, each specimen has two parts: the first part: is an acrylic cross-linked maxillary central incisor denture tooth embedded in acrylic resin blocks, and the second part: is cone shape (5 mm × 5 mm × 3 mm) specimens prepared from prepolymerized PMMA discs by computer numerically controlled (CNC) milling machine under water cooling. Test specimens were divided into four main groups 40 each according to tooth surface treatment. Group I: no sandblasting. Group II: sandblasted using 50 μm aluminum oxide. Group III: sandblasted using 150 μm Al2O3. Group IV: sandblasted using 200 μm Al2O3. Each group was divided into 2 subgroups (A, B) 20 each, subgroup A used resin cement bond first part with the second part. Subgroup B used a bonding agent to bond the first part with the second part. Each subgroup was divided into 10 specimens that were stored in 50 hours of distilled water storage and 10 specimens were thermocycling. All specimens were then subjected to a tensile load using testing machine at a crosshead speed of 1 mm/min until debonding. The resulting debonding forces were recorded and statistically analyzed. For all specimens, the interface was inspected. The interface failures were classified into adhesive and cohesive failures. The data were analyzed using a three-way Analysis of Variance (ANOVA), followed by Tukey's test. Results The highest mean value tensile bond strength was recorded for GIV (6.5 ± 1.46). Sandblasting was improving the tensile bond strength value of all the specimens. Bonding agents without and with surface treatment significantly improved the tensile bond strength of all specimens. The thermocycling significantly decreased the tensile bond strength of all specimens. Conclusion Sandblasting of denture teeth followed by bonding agent improved the tensile bond strength to CAD/CAM denture base. Thermocycling decreased the tensile bond strength of acrylic denture teeth to CAD/CAM denture base.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aim To evaluate the shear bond strength of Thermoviscous bulk-fill and Nano-hybrid composites to sound dentin surface after application of self-etch adhesive. Materials and methods Thirty freshly extracted sound human molars were used. The teeth roots were embedded in self-cure acrylic resin till the cervical line, The occlusal enamel was cut off to expose the sound dentin surface, The prepared specimens were randomly divided into three groups according to the type of composite (n=10 each): Futurabond DC adhesive (one-step self-etch adhesive) was applied in all groups using a disposable micro-brush and light cured for 10 s. The three groups were: G1, in which Grandio without preheating, was used, G2, in which Grandio with preheating, was used and G3, in which Viscalor-bulk, was used. Composite was applied to dentin using Teflon mold surrounded by metallic ring of 3 mm diameter and 4 mm height. All specimens were stored in artificial saliva at 37°C for one week. All specimens were subjected to thermocycling in water bath at 5°C and 55°C with a dwell time of 30 and 20 s transfer time for 500 thermal cycles which corresponds to 6 months of clinical service. The shear bond strength of specimens was measured using an instron machine at a cross head speed of 0.5 mm/min. The debonded surfaces were examined under a stereomicroscope at a magnification 50X to determine the mode of failure. All data were collected, tabulated, and statistically analyzed. Results Group 2 recorded a statistically significant highest shear bond strength values (16.19±3.81) Mpa among tested groups, followed by Group 1 recording (12.41±4.89) Mpa while the lowest shear bond strength values were found in Group 3 with mean values of (11.99±4.07) Mpa. One-way ANOVA test was used to compare the three tested groups at a level of significance P less than or equal to 0.05. A negative correlation between cohesive mode of failure and shear bond strength was recorded for the three tested groups. Clinical significance We safely recommend using nanohybrid composites than bulk fill ones particularly in stress bearing areas. Conclusion of the study Shear bond strength of Nano-hybrid composite better than Thermoviscous bulk-fill composite using self-etch adhesive to sound dentin surface.
{"title":"Shear bond strength of thermoviscous bulk-fill composite to sound dentin","authors":"AyaM El Beheiry, MostafaM A. Hasan, AliI Abdalla","doi":"10.4103/tdj.tdj_51_22","DOIUrl":"https://doi.org/10.4103/tdj.tdj_51_22","url":null,"abstract":"Aim To evaluate the shear bond strength of Thermoviscous bulk-fill and Nano-hybrid composites to sound dentin surface after application of self-etch adhesive. Materials and methods Thirty freshly extracted sound human molars were used. The teeth roots were embedded in self-cure acrylic resin till the cervical line, The occlusal enamel was cut off to expose the sound dentin surface, The prepared specimens were randomly divided into three groups according to the type of composite (n=10 each): Futurabond DC adhesive (one-step self-etch adhesive) was applied in all groups using a disposable micro-brush and light cured for 10 s. The three groups were: G1, in which Grandio without preheating, was used, G2, in which Grandio with preheating, was used and G3, in which Viscalor-bulk, was used. Composite was applied to dentin using Teflon mold surrounded by metallic ring of 3 mm diameter and 4 mm height. All specimens were stored in artificial saliva at 37°C for one week. All specimens were subjected to thermocycling in water bath at 5°C and 55°C with a dwell time of 30 and 20 s transfer time for 500 thermal cycles which corresponds to 6 months of clinical service. The shear bond strength of specimens was measured using an instron machine at a cross head speed of 0.5 mm/min. The debonded surfaces were examined under a stereomicroscope at a magnification 50X to determine the mode of failure. All data were collected, tabulated, and statistically analyzed. Results Group 2 recorded a statistically significant highest shear bond strength values (16.19±3.81) Mpa among tested groups, followed by Group 1 recording (12.41±4.89) Mpa while the lowest shear bond strength values were found in Group 3 with mean values of (11.99±4.07) Mpa. One-way ANOVA test was used to compare the three tested groups at a level of significance P less than or equal to 0.05. A negative correlation between cohesive mode of failure and shear bond strength was recorded for the three tested groups. Clinical significance We safely recommend using nanohybrid composites than bulk fill ones particularly in stress bearing areas. Conclusion of the study Shear bond strength of Nano-hybrid composite better than Thermoviscous bulk-fill composite using self-etch adhesive to sound dentin surface.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135494868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Saeed, S. Darwish, E. El-Shamy, Malak Shoukeeba
Objectives The aim of this study was to evaluate, histologically, the effectiveness of using gelatin sponge loaded with β-tricalcium phosphate with or without concentrated growth factor (CGF) (groups I and III) versus collagen with CGF (group II) in the treatment of Miller class II gingival recession in experimentally created bony defects in Egyptian Baladi dogs. Materials and Methods Twenty-four Miller class II gingival recession experimentally created defects in three Egyptian Baladi dogs were used in the present study. Six identical recession defects in three quadrants were created in upper and lower canines and premolars. Each quadrant received one of the three treatment modalities which were to be evaluated. The remaining two sites served as the control with a total of six control sites. Three dogs were euthanized after 12 weeks, and samples were collected for histological and histomorphometric analysis. Results Experimental defects of all groups showed distinct types of new attachment with variable degree of regeneration and repair of new cementum, bone, and periodontal fibers. The control group exhibited attachment with a long junctional epithelium. In group I, four defects showed new attachment with periodontal ligament (PDL)-like tissue whereas two defects healed with long junctional epithelium. Five defects in group II displayed new attachment with PDL-like tissue whereas the last defect demonstrated attachment with long junctional epithelium. While in group III, all defects showed new attachment with PDL-like tissues. The histomorphometrical analysis revealed a highly significant increase in the percentage of new bone formation in group III when compared to the other groups, followed by group II then group I, with the least bone formation in the control group. Conclusion The results of the present study indicated that, gelatin sponge loaded with β-tricalcium phosphate with or without CGF (groups I and III) and collagen with CGF (group II), all led to favorable histological outcomes. It was therefore postulated that, the addition of CGF may have been a potentiating material, which could have enhanced periodontal tissue repair.
{"title":"Histological evaluation of gelatin/beta-tricalcium phosphate sponges with or without concentrated growth factor in localized class II gingival recession","authors":"S. Saeed, S. Darwish, E. El-Shamy, Malak Shoukeeba","doi":"10.4103/tdj.tdj_27_22","DOIUrl":"https://doi.org/10.4103/tdj.tdj_27_22","url":null,"abstract":"Objectives The aim of this study was to evaluate, histologically, the effectiveness of using gelatin sponge loaded with β-tricalcium phosphate with or without concentrated growth factor (CGF) (groups I and III) versus collagen with CGF (group II) in the treatment of Miller class II gingival recession in experimentally created bony defects in Egyptian Baladi dogs. Materials and Methods Twenty-four Miller class II gingival recession experimentally created defects in three Egyptian Baladi dogs were used in the present study. Six identical recession defects in three quadrants were created in upper and lower canines and premolars. Each quadrant received one of the three treatment modalities which were to be evaluated. The remaining two sites served as the control with a total of six control sites. Three dogs were euthanized after 12 weeks, and samples were collected for histological and histomorphometric analysis. Results Experimental defects of all groups showed distinct types of new attachment with variable degree of regeneration and repair of new cementum, bone, and periodontal fibers. The control group exhibited attachment with a long junctional epithelium. In group I, four defects showed new attachment with periodontal ligament (PDL)-like tissue whereas two defects healed with long junctional epithelium. Five defects in group II displayed new attachment with PDL-like tissue whereas the last defect demonstrated attachment with long junctional epithelium. While in group III, all defects showed new attachment with PDL-like tissues. The histomorphometrical analysis revealed a highly significant increase in the percentage of new bone formation in group III when compared to the other groups, followed by group II then group I, with the least bone formation in the control group. Conclusion The results of the present study indicated that, gelatin sponge loaded with β-tricalcium phosphate with or without CGF (groups I and III) and collagen with CGF (group II), all led to favorable histological outcomes. It was therefore postulated that, the addition of CGF may have been a potentiating material, which could have enhanced periodontal tissue repair.","PeriodicalId":22324,"journal":{"name":"Tanta Dental Journal","volume":"41 1","pages":"221 - 228"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78929756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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