Pub Date : 2020-12-01DOI: 10.22038/JDMT.2020.50397.1382
F. Maybodi, H. Vahedian, Alireza Ebrhimi, Nasrin Faal Rastegar
Introduction: Anemia of chronic disease (ACD) is the second most common form of anemia after iron deficiency anemia. This type of anemia occurs in cases of chronic infections, inflammatory conditions, or neoplastic disorders and even in presence of enough iron and required vitamins. Some previous studies have suggested that periodontitis, as a chronic disease, is likely to be associated with this type of anemia. The aim of this study is to investigate the possible effect of non-surgical periodontal therapy on improvement of blood parameters. Methods: This study was performed on 36 male patients with chronic moderate or severe periodontitis (divided into case and control groups) and 18 men with healthy periodontium. Blood samples such as hematocrit, hemoglobin, MCH, MCHC, MCV and Ferritin were collected from participants. Then periodontal treatment was started for case group. Results: In the case group, there was a significant increase in hematocrit, hemoglobin, MCH, MCHC and MCV after 8 weeks of treatment and there was no significant decrease of Ferritin. No significant differences in blood parameters were observed in periodontally healthy and control groups. Conclusion: According to significant differences in some mentioned blood parameters after non-surgical treatment, it seems that periodontal assessment and subsequent therapy can be recommendable as an adjunctive part in overall treatment plan of anemic patients.
{"title":"Evaluation of Non-surgical Treatment in Chronic Periodontitis Patients on Blood Parameters","authors":"F. Maybodi, H. Vahedian, Alireza Ebrhimi, Nasrin Faal Rastegar","doi":"10.22038/JDMT.2020.50397.1382","DOIUrl":"https://doi.org/10.22038/JDMT.2020.50397.1382","url":null,"abstract":"Introduction: Anemia of chronic disease (ACD) is the second most common form of anemia after iron deficiency anemia. This type of anemia occurs in cases of chronic infections, inflammatory conditions, or neoplastic disorders and even in presence of enough iron and required vitamins. Some previous studies have suggested that periodontitis, as a chronic disease, is likely to be associated with this type of anemia. The aim of this study is to investigate the possible effect of non-surgical periodontal therapy on improvement of blood parameters. Methods: This study was performed on 36 male patients with chronic moderate or severe periodontitis (divided into case and control groups) and 18 men with healthy periodontium. Blood samples such as hematocrit, hemoglobin, MCH, MCHC, MCV and Ferritin were collected from participants. Then periodontal treatment was started for case group. Results: In the case group, there was a significant increase in hematocrit, hemoglobin, MCH, MCHC and MCV after 8 weeks of treatment and there was no significant decrease of Ferritin. No significant differences in blood parameters were observed in periodontally healthy and control groups. Conclusion: According to significant differences in some mentioned blood parameters after non-surgical treatment, it seems that periodontal assessment and subsequent therapy can be recommendable as an adjunctive part in overall treatment plan of anemic patients.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"2 1","pages":"211-220"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74597304","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}
Pub Date : 2020-12-01DOI: 10.22038/JDMT.2020.49843.1380
M. Mohan, Caitlin Chidsey, R. Rosivack
Introduction:The aim of this in vitro study was to compare the microtensile bond strength of glass ionomer to carious dentin in primary molars that were treated with silver diamine fluoride (SDF) to that of primary molars treated with silver diamine fluoride and potassium iodide (SDF/KI). Methods: Thirty-nine extracted carious primary molar samples were prepared and divided into two groups. Twenty samples received two applications of SDF and 19 samples received two applications of SDF/KI. All samples were restored with glass ionomer (EQUIA Forte). The samples were tested using a vertical displacement test to evaluate the microtensile bond strength. Results: The microtensile bond strength of the glass ionomer to carious dentin was greater in the teeth treated with SDF/KI than in the teeth treated with SDF alone. The results were statistically significant with a p-value Conclusions: Pretreatment of carious dentin with silver diamine fluoride and potassium iodide resulted in a greater microtensile bond strength to a glass ionomer when compared to carious dentin treated with silver diamine fluoride alone.
{"title":"Comparison of Microtensile Bond Strength of Glass Ionomer to Carious Primary Dentin After Treatment with SDF and SDF/KI","authors":"M. Mohan, Caitlin Chidsey, R. Rosivack","doi":"10.22038/JDMT.2020.49843.1380","DOIUrl":"https://doi.org/10.22038/JDMT.2020.49843.1380","url":null,"abstract":"Introduction:The aim of this in vitro study was to compare the microtensile bond strength of glass ionomer to carious dentin in primary molars that were treated with silver diamine fluoride (SDF) to that of primary molars treated with silver diamine fluoride and potassium iodide (SDF/KI). Methods: Thirty-nine extracted carious primary molar samples were prepared and divided into two groups. Twenty samples received two applications of SDF and 19 samples received two applications of SDF/KI. All samples were restored with glass ionomer (EQUIA Forte). The samples were tested using a vertical displacement test to evaluate the microtensile bond strength. Results: The microtensile bond strength of the glass ionomer to carious dentin was greater in the teeth treated with SDF/KI than in the teeth treated with SDF alone. The results were statistically significant with a p-value Conclusions: Pretreatment of carious dentin with silver diamine fluoride and potassium iodide resulted in a greater microtensile bond strength to a glass ionomer when compared to carious dentin treated with silver diamine fluoride alone.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"5 1","pages":"203-210"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72653630","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}
Pub Date : 2020-12-01DOI: 10.22038/JDMT.2020.51789.1392
M. Ozdogan, Harun Gökçe
Introduction: While different preparation designs on anterior laminates have been investigated in several studies, a clear understanding of the tooth subtract type support on laminate veneer structural integrity using finite element analysis is still lacking. Therefore, the aim of present study is to evaluate stresses and displacements with different thickness restoration material and prepared tooth subtract using Finite Element Analysis (FEA). Methods: A 3D FEA models of maxillary central incisors restored with two ceramic systems Feldspathic ceramic and IPS e.max press, according to three different preparation surfaces (all-enamel, half-enamel-half-dentin, all-dentin). It has been evaluated von Mises and principle stress and displacement on the incisal surface along with the long axis by applying 50 N. Load. Results: The smallest von Mises stresses were found at Feldspathic ceramic. The lowest stresses were seen in veneers adhered to enamel surface. The greatest stress occurred in the incisal third of IPS e.max press, which is only adhered to dentin surface. While the other five veneers displayed the highest von Mises stress values on cervical margin. Displacement analysis showed that the most ideal result was obtained by using 0.3 mm thick IPS e.max press laminate veneer adhered on enamel. The highest principal stresses were obtained in the cervical area. The greatest stresses occurring on tooth was seen in the dentine in IPS e.max press with the greatest restoration thickness. Conclusion: As the thickness of the restorations increased, the stress on the restoration and tooth increased.
{"title":"Influence of Adhesion Surface, Restoration Thickness and Type on Stress Distribution in Anterior Laminate Veneers: A Finite Element Analysis Study","authors":"M. Ozdogan, Harun Gökçe","doi":"10.22038/JDMT.2020.51789.1392","DOIUrl":"https://doi.org/10.22038/JDMT.2020.51789.1392","url":null,"abstract":"Introduction: While different preparation designs on anterior laminates have been investigated in several studies, a clear understanding of the tooth subtract type support on laminate veneer structural integrity using finite element analysis is still lacking. Therefore, the aim of present study is to evaluate stresses and displacements with different thickness restoration material and prepared tooth subtract using Finite Element Analysis (FEA). Methods: A 3D FEA models of maxillary central incisors restored with two ceramic systems Feldspathic ceramic and IPS e.max press, according to three different preparation surfaces (all-enamel, half-enamel-half-dentin, all-dentin). It has been evaluated von Mises and principle stress and displacement on the incisal surface along with the long axis by applying 50 N. Load. Results: The smallest von Mises stresses were found at Feldspathic ceramic. The lowest stresses were seen in veneers adhered to enamel surface. The greatest stress occurred in the incisal third of IPS e.max press, which is only adhered to dentin surface. While the other five veneers displayed the highest von Mises stress values on cervical margin. Displacement analysis showed that the most ideal result was obtained by using 0.3 mm thick IPS e.max press laminate veneer adhered on enamel. The highest principal stresses were obtained in the cervical area. The greatest stresses occurring on tooth was seen in the dentine in IPS e.max press with the greatest restoration thickness. Conclusion: As the thickness of the restorations increased, the stress on the restoration and tooth increased.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"27 1","pages":"185-194"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85418750","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}
Pub Date : 2020-11-14DOI: 10.22038/JDMT.2020.50951.1387
Malihe Alami, D. Nodehi, N. Tayarani, Azizollah Moraditalab
Introduction: Our goal is to demonstrate an appliance that can prevent post-burn microstomia. Perioral burns result in contracture of facial tissue during healing. It may cause limited oral access due to the sphincteral nature of orbicularis oris muscle. The literature has demonstrated that burn contractures and scar formation can be modified with pressure and splinting. Technique: The patient was a 50-year-old woman who had a 3rd degree burn. She had been treated with medicinal and palliative treatments, but due to burn scar that involved all her peri-oral tissues she had progressive microstomia. We fabricated microstomia prevention device for her in order to prevent further progression of microstomia. As the patient was completely edentulous, we decided to fabricate a tissue-supported appliance. Conclusion: This appliance is made with very simple equipment and is easy to fabricate.
{"title":"Post-Burn Microstomia Prevention: Application of a New Therapeutic Device","authors":"Malihe Alami, D. Nodehi, N. Tayarani, Azizollah Moraditalab","doi":"10.22038/JDMT.2020.50951.1387","DOIUrl":"https://doi.org/10.22038/JDMT.2020.50951.1387","url":null,"abstract":"Introduction: Our goal is to demonstrate an appliance that can prevent post-burn microstomia. Perioral burns result in contracture of facial tissue during healing. It may cause limited oral access due to the sphincteral nature of orbicularis oris muscle. The literature has demonstrated that burn contractures and scar formation can be modified with pressure and splinting. Technique: The patient was a 50-year-old woman who had a 3rd degree burn. She had been treated with medicinal and palliative treatments, but due to burn scar that involved all her peri-oral tissues she had progressive microstomia. We fabricated microstomia prevention device for her in order to prevent further progression of microstomia. As the patient was completely edentulous, we decided to fabricate a tissue-supported appliance. Conclusion: This appliance is made with very simple equipment and is easy to fabricate.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"57 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2020-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81376607","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}
Pub Date : 2020-09-01DOI: 10.22038/JDMT.2020.46783.1356
A. Ozdogan, Mehmet Fatih Ozmen
Introduction: This study aims to evaluate surface wettability of additional silicone impression materials, which are immersed in different disinfecting agents with different time intervals. Methods: Ninety disk-shaped specimens to be eighteen specimens from each of five different impression materials (four vinyl polysiloxane and one vinyl polyether siloxane) were prepared. The specimens were divided into six groups according to the disinfecting agents (one of them containing ethanol and other one containing benzalkonium chloride) and periods. Then, the specimens were immersed in two disinfecting agents for 1 minute, 1 hour and 24 hours. Later, surface wettability was tested and recorded. Data were analyzed with analysis of variance (ANOVA). Results: There was no difference between impression materials and disinfectants in terms of the effect on the contact angle (p>0.05), and there was a significant difference between disinfection times (p=0.001). Conclusions: One-minute disinfection process increases wettability of specimens compared to long term disinfections.
{"title":"Effect of Two Different Disinfectant Agents on Wettability of Elastomeric Impression Materials","authors":"A. Ozdogan, Mehmet Fatih Ozmen","doi":"10.22038/JDMT.2020.46783.1356","DOIUrl":"https://doi.org/10.22038/JDMT.2020.46783.1356","url":null,"abstract":"Introduction: This study aims to evaluate surface wettability of additional silicone impression materials, which are immersed in different disinfecting agents with different time intervals. Methods: Ninety disk-shaped specimens to be eighteen specimens from each of five different impression materials (four vinyl polysiloxane and one vinyl polyether siloxane) were prepared. The specimens were divided into six groups according to the disinfecting agents (one of them containing ethanol and other one containing benzalkonium chloride) and periods. Then, the specimens were immersed in two disinfecting agents for 1 minute, 1 hour and 24 hours. Later, surface wettability was tested and recorded. Data were analyzed with analysis of variance (ANOVA). Results: There was no difference between impression materials and disinfectants in terms of the effect on the contact angle (p>0.05), and there was a significant difference between disinfection times (p=0.001). Conclusions: One-minute disinfection process increases wettability of specimens compared to long term disinfections.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"25 1","pages":"130-138"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81014716","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}
Pub Date : 2020-09-01DOI: 10.22038/JDMT.2020.45325.1336
G. Deste, R. Durkan, P. Oyar
Introduction: High fracture resistance of prostheses are well accepted by both patients and dentists to have a proper restoration of the dentition. The research designated assess polymerization time effect distinct and complete temperatures on mechanical properties (denture base resin) of a high strength. The research purpose is to assess and compare the procedure used in polymerization distinct effect autoclave on the elastic modulus and transverse strength of a high strength acrylic resin to the conventional heat polymerizing. Methods: Rectangular sample of ninety-one polymarised high heat strength denture base resin were created. Polymerized sample done by hot water regarded as control group and the other groups were polymerized in autoclave at different temperatures and time lenghts. After deflasking of sample before procedure it was kept forty eight hours in water. Three parameters were used when conducting transverse strength test bending using calibrated universal testing machine with a load of 500 kg cell and a crosshead speed of 5 mm/min. One-way ANOVA was used in assessing transverse strength and elastic modulus data. And for comparison of the groups application of Tukey HSD trial has been seen appropriate (p <0.05). Results: Specimens that polymerized by autoclave at 130oC for 20 and 30 minutes showed significantly better characteristics compared to the other groups. Conclusion: Upgrading of base resins transverse strength is required because the research indicated autoclave polymerization at 130°C for 20 and 30 minutes may be an alternative polymerization method.
{"title":"Evaluation of the Transverse Strength and Elastic Modulus of High Impact Denture Base Material","authors":"G. Deste, R. Durkan, P. Oyar","doi":"10.22038/JDMT.2020.45325.1336","DOIUrl":"https://doi.org/10.22038/JDMT.2020.45325.1336","url":null,"abstract":"Introduction: High fracture resistance of prostheses are well accepted by both patients and dentists to have a proper restoration of the dentition. The research designated assess polymerization time effect distinct and complete temperatures on mechanical properties (denture base resin) of a high strength. The research purpose is to assess and compare the procedure used in polymerization distinct effect autoclave on the elastic modulus and transverse strength of a high strength acrylic resin to the conventional heat polymerizing. Methods: Rectangular sample of ninety-one polymarised high heat strength denture base resin were created. Polymerized sample done by hot water regarded as control group and the other groups were polymerized in autoclave at different temperatures and time lenghts. After deflasking of sample before procedure it was kept forty eight hours in water. Three parameters were used when conducting transverse strength test bending using calibrated universal testing machine with a load of 500 kg cell and a crosshead speed of 5 mm/min. One-way ANOVA was used in assessing transverse strength and elastic modulus data. And for comparison of the groups application of Tukey HSD trial has been seen appropriate (p <0.05). Results: Specimens that polymerized by autoclave at 130oC for 20 and 30 minutes showed significantly better characteristics compared to the other groups. Conclusion: Upgrading of base resins transverse strength is required because the research indicated autoclave polymerization at 130°C for 20 and 30 minutes may be an alternative polymerization method.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"81 1","pages":"107-115"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85739054","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}
Pub Date : 2020-09-01DOI: 10.22038/JDMT.2020.48218.1367
Emel Yurekli, S. Ozkir
Introduction: Short implants are considered as a sole option in many patients due to anatomical limitations. It was aimed to assess the functional load stress at implants, surrounding bone and superstructures with different inclination angle. Methods: Seven finite element models with three implants (4 mm × 8 mm) and a separate model with longer implants (4 mm× 10 mm) with an angulation of 37° were designed. The implants were first placed vertically and then angled in distal direction preserving their parallelism increasing 6 ° at each step. Chromium-Cobalt was used to prepare superstructures. Oblique force of 100 N was applied on superstructures. Result: Inclined implant replacement did not significantly increase stress and compressive forces on bone, and the stress on implant surrounding bone decreased as inclination angle increased. On the other hand, in the model with linger implant more homogenous stress distribution was observed and implant’s von Mises values decreased. Conclusion: Inclination of implants could have no detrimental effects on bone. Furthermore, inclination of implants provides the opportunity of placing longer implants and also more favorable stress distribution around the implants and in bone.
{"title":"A Three-dimensional Finite Element Analysis of Stress Distribution in Inclined Placed Implants","authors":"Emel Yurekli, S. Ozkir","doi":"10.22038/JDMT.2020.48218.1367","DOIUrl":"https://doi.org/10.22038/JDMT.2020.48218.1367","url":null,"abstract":"Introduction: Short implants are considered as a sole option in many patients due to anatomical limitations. It was aimed to assess the functional load stress at implants, surrounding bone and superstructures with different inclination angle. Methods: Seven finite element models with three implants (4 mm × 8 mm) and a separate model with longer implants (4 mm× 10 mm) with an angulation of 37° were designed. The implants were first placed vertically and then angled in distal direction preserving their parallelism increasing 6 ° at each step. Chromium-Cobalt was used to prepare superstructures. Oblique force of 100 N was applied on superstructures. Result: Inclined implant replacement did not significantly increase stress and compressive forces on bone, and the stress on implant surrounding bone decreased as inclination angle increased. On the other hand, in the model with linger implant more homogenous stress distribution was observed and implant’s von Mises values decreased. Conclusion: Inclination of implants could have no detrimental effects on bone. Furthermore, inclination of implants provides the opportunity of placing longer implants and also more favorable stress distribution around the implants and in bone.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"76 1","pages":"152-160"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80180697","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}
Pub Date : 2020-09-01DOI: 10.22038/JDMT.2020.46822.1357
Disha Bansal, I. Chandola, Mrinalini Mahajan
IntroductionRefractory root canal infection is mostly associated with enterococcus faecalis. The chemomechanical cleaning of root canal is one of the most critical steps in endodontic treatment. Intracanal medicaments are used as a supplementary disinfection process. Essential oils are rich in antibacterial properties and can be used against bacteria in root canals.Aim of this study was to evaluate antimicrobial activity of 5 essential oils mixed with calcium hydroxide against E.faecalisMethodsEnterococcus faecalis (ATCC 29212) was assigned as test organism, inoculated into Brain heart infusion broth, incubated overnight at 370 C and subcultured onto Brain heart infusion agar. 4 cup wells of 10 mm diameter were bored in each petriplate. These wells were then filled with freshly prepared test medicaments and incubated for 24 hours in upright position. The zones of inhibition were analyzed and diameters were measured using a ruler.ResultsThe mean zone of inhibition was significantly higher among Geranium oil + Ca(OH)2, Lemon grass oil+ Ca(OH)2, Rosemary oil+ Ca(OH)2 and Saline + Ca(OH)2 when compared to Jojoba oil +Ca(OH)2 and Almond oil+ Ca(OH)2.ConclusionCalcium hydroxide combined with essential oils can be used as an effective intracanal medicament against E.faecalis.
{"title":"Antimicrobial activity of Five Different Essential oils against Enterococcus Faecalis: An In vitro study","authors":"Disha Bansal, I. Chandola, Mrinalini Mahajan","doi":"10.22038/JDMT.2020.46822.1357","DOIUrl":"https://doi.org/10.22038/JDMT.2020.46822.1357","url":null,"abstract":"IntroductionRefractory root canal infection is mostly associated with enterococcus faecalis. The chemomechanical cleaning of root canal is one of the most critical steps in endodontic treatment. Intracanal medicaments are used as a supplementary disinfection process. Essential oils are rich in antibacterial properties and can be used against bacteria in root canals.Aim of this study was to evaluate antimicrobial activity of 5 essential oils mixed with calcium hydroxide against E.faecalisMethodsEnterococcus faecalis (ATCC 29212) was assigned as test organism, inoculated into Brain heart infusion broth, incubated overnight at 370 C and subcultured onto Brain heart infusion agar. 4 cup wells of 10 mm diameter were bored in each petriplate. These wells were then filled with freshly prepared test medicaments and incubated for 24 hours in upright position. The zones of inhibition were analyzed and diameters were measured using a ruler.ResultsThe mean zone of inhibition was significantly higher among Geranium oil + Ca(OH)2, Lemon grass oil+ Ca(OH)2, Rosemary oil+ Ca(OH)2 and Saline + Ca(OH)2 when compared to Jojoba oil +Ca(OH)2 and Almond oil+ Ca(OH)2.ConclusionCalcium hydroxide combined with essential oils can be used as an effective intracanal medicament against E.faecalis.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"7 1","pages":"139-146"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74196670","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}
Pub Date : 2020-09-01DOI: 10.22038/JDMT.2020.48345.1370
A. Patel, Ramandeep Dugal, Pallavi Madanshetty, A. Godil, A. Kazi, A. Kirad
Introduction: The aim of this experimental in-vitro study was to evaluate and compare marginal accuracy of interim restorations made with three chemically different interim materials one hour after fabrication and at one week interval. Methods: Twenty samples from each group with a total of sixty were fabricated on a customized metal die. The three test groups were as below; Group A - Protemp TM 4 (3M ESPE AG Dental Products, Germany), a bis-acrylic based self-cure temporary material; Group B - Revotek LCTM (GC Dental Products Corp., Japan), a urethane dimethacrylate based light cure temporary material and Group C - Tuff-Temp™ Plus (Pulpdent Corporation, U.S.A), a rubberized-urethane based dual cure temporary material. All samples were stored in artificial saliva and evaluated for marginal discrepancy using a stereomicroscope, one hour and one week after fabrication. Statistical analysis was done using one way ANOVA test and Tukeys Post-hoc tests. Results: Statistical significant difference existed between three groups after one hour (p <0.001) and after one week (p <0.001), Tuff-Temp™ Plus showed the least marginal discrepancy (at one hour =192.3± 0.75µm; at one week = 242.69 ± 5.64µm), while Revotek LCTM (at one hour = 232.52± 0.48µm; at one week = 293.68 ± 3.75µm) had the highest discrepancy. Conclusions: Tuff-Temp™ Plus showed higher marginal accuracy followed Protemp TM 4 and Revotek LCTM at one hour and one week interval.
{"title":"Evaluation of Marginal Fit of Three Different Interim Restoration Materials - An In-vitro Study","authors":"A. Patel, Ramandeep Dugal, Pallavi Madanshetty, A. Godil, A. Kazi, A. Kirad","doi":"10.22038/JDMT.2020.48345.1370","DOIUrl":"https://doi.org/10.22038/JDMT.2020.48345.1370","url":null,"abstract":"Introduction: The aim of this experimental in-vitro study was to evaluate and compare marginal accuracy of interim restorations made with three chemically different interim materials one hour after fabrication and at one week interval. Methods: Twenty samples from each group with a total of sixty were fabricated on a customized metal die. The three test groups were as below; Group A - Protemp TM 4 (3M ESPE AG Dental Products, Germany), a bis-acrylic based self-cure temporary material; Group B - Revotek LCTM (GC Dental Products Corp., Japan), a urethane dimethacrylate based light cure temporary material and Group C - Tuff-Temp™ Plus (Pulpdent Corporation, U.S.A), a rubberized-urethane based dual cure temporary material. All samples were stored in artificial saliva and evaluated for marginal discrepancy using a stereomicroscope, one hour and one week after fabrication. Statistical analysis was done using one way ANOVA test and Tukeys Post-hoc tests. Results: Statistical significant difference existed between three groups after one hour (p <0.001) and after one week (p <0.001), Tuff-Temp™ Plus showed the least marginal discrepancy (at one hour =192.3± 0.75µm; at one week = 242.69 ± 5.64µm), while Revotek LCTM (at one hour = 232.52± 0.48µm; at one week = 293.68 ± 3.75µm) had the highest discrepancy. Conclusions: Tuff-Temp™ Plus showed higher marginal accuracy followed Protemp TM 4 and Revotek LCTM at one hour and one week interval.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"36 1","pages":"161-170"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80843011","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}
Pub Date : 2020-09-01DOI: 10.22038/JDMT.2020.47713.1364
M. Zarei, Z. Kazemi, M. Javidi, M. Rad, S. Karimpour, M. Forghani
Introduction The Aim of endodontic treatment is to remove infection and prevent recontamination of root canal system. Endodontic sealers are used to fill irregularities that are inaccessible for core filling material. Their penetration into dentinal tubules is of great importance to obtain a better seal. Sealers with nanoparticles may have a deeper penetration because of their smaller particles. The purpose of this study was to compare the penetration ability of a new nanoparticle sealer with two other sealers. Methods Twenty single-rooted premolars were decoronated and prepared using NeoNiTi rotary files. Then the smear layer was removed and canals were randomized in three groups and filled with gutta-percha. Nano-ZnO sealer, AH26, and Pulp Canal Sealers were used for each group. Teeth were sectioned at two levels (4 and 8 mm from the apex) and examined under a scanning electron microscope. Results The results showed the deepest penetration for AH26 Penetration depth in the coronal section was deeper than apical. There was no significant difference between penetration depth of AH26 and Nano-ZnO sealer in the apical region, but AH26 showed significantly more penetration in coronal section. Conclusion According to the results of this study, Nano-ZnO sealer showed less penetrability compared to AH26 in coronal region of the roots.
{"title":"Comparison of Tubular Penetration of Nano ZnO, AH26 and kerr Pulp Canal Sealer EWT Using Scanning Electron Microscope","authors":"M. Zarei, Z. Kazemi, M. Javidi, M. Rad, S. Karimpour, M. Forghani","doi":"10.22038/JDMT.2020.47713.1364","DOIUrl":"https://doi.org/10.22038/JDMT.2020.47713.1364","url":null,"abstract":"Introduction The Aim of endodontic treatment is to remove infection and prevent recontamination of root canal system. Endodontic sealers are used to fill irregularities that are inaccessible for core filling material. Their penetration into dentinal tubules is of great importance to obtain a better seal. Sealers with nanoparticles may have a deeper penetration because of their smaller particles. The purpose of this study was to compare the penetration ability of a new nanoparticle sealer with two other sealers. Methods Twenty single-rooted premolars were decoronated and prepared using NeoNiTi rotary files. Then the smear layer was removed and canals were randomized in three groups and filled with gutta-percha. Nano-ZnO sealer, AH26, and Pulp Canal Sealers were used for each group. Teeth were sectioned at two levels (4 and 8 mm from the apex) and examined under a scanning electron microscope. Results The results showed the deepest penetration for AH26 Penetration depth in the coronal section was deeper than apical. There was no significant difference between penetration depth of AH26 and Nano-ZnO sealer in the apical region, but AH26 showed significantly more penetration in coronal section. Conclusion According to the results of this study, Nano-ZnO sealer showed less penetrability compared to AH26 in coronal region of the roots.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"95 1","pages":"147-151"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86601881","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：