Background: bond failure of acrylic and porcelain teeth represents primary clinical disadvantages of partial and complete denture services provided to the patient. The aims of the study were to investigate the tensile and shear bond strength of two types of denture bases (heat cured reinforced with 5% ZrO2nano-fillers and valplast) with (acrylic and porcelain) teeth after ridge lap conditioning and using aging. The measurements were used for comparison with traditional denture base. Materials and methods: denture bases reinforced with nano ZrO2 and valplast were bonded to acrylic and porcelain teeth. Samples were divided for shear and tensile strength. Each contains 5 samples. The ridge lap surface were conditioned by different treatments and then subjected to aging. Tensile and shear bond strength measured by instron testing device. The results were organized and evaluated by using analysis of variance (f-test) and t-test for comparison between subgroups. Results: artificial teeth bonded to nano reinforced denture base required higher tensile and shear force to separate when compared with traditional heat cured and valplast resins. The mode of failure where cohesive either in the denture base or in the tooth itself when compared with valplast resin. Acrylic teeth conditioned with turpentine and porcelain with hydrofluoric acid express higher tensile and shear bond compared with unconditioned teeth. Aging sustained damaging effects on the bond strength of artificial teeth bonded to valplast denture base in compared with nano reinforced and conventional heat cured. Conclusions: tensile and shear bond strength of artificial teeth enhanced by the reinforcement of the resin with nano-sized fillers and by conditioning of the teeth ridge lap using chemical agents, making the bond stronger and durable to withstand fluctuated oral conditions.
{"title":"Evaluation of Bond Strength of Surface Conditioned Artificial Teeth with Modified and Valplast Denture Bases With Aging","authors":"Hikmat J Aljudy, A. N. Ahmad, Ihab N AlSafi","doi":"10.26477/IDJ.V37I3.56","DOIUrl":"https://doi.org/10.26477/IDJ.V37I3.56","url":null,"abstract":"Background: bond failure of acrylic and porcelain teeth represents primary clinical disadvantages of partial and complete denture services provided to the patient. The aims of the study were to investigate the tensile and shear bond strength of two types of denture bases (heat cured reinforced with 5% ZrO2nano-fillers and valplast) with (acrylic and porcelain) teeth after ridge lap conditioning and using aging. The measurements were used for comparison with traditional denture base. Materials and methods: denture bases reinforced with nano ZrO2 and valplast were bonded to acrylic and porcelain teeth. Samples were divided for shear and tensile strength. Each contains 5 samples. The ridge lap surface were conditioned by different treatments and then subjected to aging. Tensile and shear bond strength measured by instron testing device. The results were organized and evaluated by using analysis of variance (f-test) and t-test for comparison between subgroups. Results: artificial teeth bonded to nano reinforced denture base required higher tensile and shear force to separate when compared with traditional heat cured and valplast resins. The mode of failure where cohesive either in the denture base or in the tooth itself when compared with valplast resin. Acrylic teeth conditioned with turpentine and porcelain with hydrofluoric acid express higher tensile and shear bond compared with unconditioned teeth. Aging sustained damaging effects on the bond strength of artificial teeth bonded to valplast denture base in compared with nano reinforced and conventional heat cured. Conclusions: tensile and shear bond strength of artificial teeth enhanced by the reinforcement of the resin with nano-sized fillers and by conditioning of the teeth ridge lap using chemical agents, making the bond stronger and durable to withstand fluctuated oral conditions.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89502781","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}
Background The position and appearance of the inferior dental canal (IDC)areimportant consideration during a surgical treatment of the mandible. Objective To study the appearance of the IDC radiographically with the aid of histogram equalization of digital imaging to improve the vision of the IDC outline on the digital dental panoramic images in the posterior area of the lower jaw. Method 150 digital panoramic images ofthe right side of the mandible were evaluated according to a particular inclusive criteria.The percentage of the IDCwas calculated to assist the histogram equalization usefulness in the vision of the canal. Result The results showed that there was a difference in the appearance of IDC on the panoramic images of the mandible. The evaluation of the histogram equalization of the digital imageshowed that the canal visualization improved in twenty-seven images,representing 52%,and twelve images,representing 23%, did not show any improvement. The researcher was no sure of thirteen images, representing 25%. Conclusion Since the radiographic appearance of IDC is not universal, and the evaluation of the histogram equalization of the digital image found to be useful in some cases, but not in all; therefore, there is a need for further investigation using advanced modalities such as cone beam CT.
{"title":"Evaluation of the Course of the Inferior Dental Canal Using Digital Dental Panoramic Imaging","authors":"O. Taha","doi":"10.26477/IDJ.V37I2.41","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.41","url":null,"abstract":"Background The position and appearance of the inferior dental canal (IDC)areimportant consideration during a surgical treatment of the mandible. Objective To study the appearance of the IDC radiographically with the aid of histogram equalization of digital imaging to improve the vision of the IDC outline on the digital dental panoramic images in the posterior area of the lower jaw. Method 150 digital panoramic images ofthe right side of the mandible were evaluated according to a particular inclusive criteria.The percentage of the IDCwas calculated to assist the histogram equalization usefulness in the vision of the canal. Result The results showed that there was a difference in the appearance of IDC on the panoramic images of the mandible. The evaluation of the histogram equalization of the digital imageshowed that the canal visualization improved in twenty-seven images,representing 52%,and twelve images,representing 23%, did not show any improvement. The researcher was no sure of thirteen images, representing 25%. Conclusion Since the radiographic appearance of IDC is not universal, and the evaluation of the histogram equalization of the digital image found to be useful in some cases, but not in all; therefore, there is a need for further investigation using advanced modalities such as cone beam CT.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89802950","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}
The removal of third molars is the most common procedure in oral surgery. It may be associated with minor complications such as pain, dry socket, infection, and major complications such as sensory disturbances and iatrogenic damage to the 2nd molar or mandibular fractures. Aim: The aim of this study was to evaluate the incidence of various complications, including pain, alveolitis, infection and damage to the inferior alveolar and lingual nerve that may occur during or after surgical removal of impacted mandibular third molars. Materials and methods: This prospective study took place between March 1st, 2013 and January 29th, 2014 and it was done by the author. The sample consisted of 152 patients (90 males and 62 females with an age range of 20 – 45 years). The patients underwent surgical removal of a completely or partially impacted lower wisdom tooth. All impacted third molars in the study were asymptomatic at the time of surgery. A standardized case sheet was filled for each patient and the patients were informed to register the pain and any other complications in these sheets. Results: The overall complication rate was 35 patients (23.02%). Twenty-three (15%) patients developed moderate to severe pain, immediately after the operation lasting till the 3rd or 4th day postoperatively. Five patients (3.42%) developed localized osteitis, four patients (2.73%) developed postoperative oozing that lasted for 5 days, and three cases (1.97%) developed postoperative infection. None of the patients developed postoperative lingual nerve or inferior alveolar nerve dysfunction. Conclusion: Postoperative pain is the main complication after surgical removal of impacted lower wisdom teeth and alveolar osteitis is the second most important complication. Inferior alveolar nerve, lingual nerve damage and bleeding are very rare complications. The complications can be minimized by careful surgical extraction, postoperative medication and following postoperative instructions.
{"title":"Evaluation of Postoperative Complications after Surgical Removal of Impacted Lower Wisdom Teeth: a Prospective Study","authors":"L. Hasan","doi":"10.26477/IDJ.V37I2.45","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.45","url":null,"abstract":"The removal of third molars is the most common procedure in oral surgery. It may be associated with minor complications such as pain, dry socket, infection, and major complications such as sensory disturbances and iatrogenic damage to the 2nd molar or mandibular fractures. Aim: The aim of this study was to evaluate the incidence of various complications, including pain, alveolitis, infection and damage to the inferior alveolar and lingual nerve that may occur during or after surgical removal of impacted mandibular third molars. Materials and methods: This prospective study took place between March 1st, 2013 and January 29th, 2014 and it was done by the author. The sample consisted of 152 patients (90 males and 62 females with an age range of 20 – 45 years). The patients underwent surgical removal of a completely or partially impacted lower wisdom tooth. All impacted third molars in the study were asymptomatic at the time of surgery. A standardized case sheet was filled for each patient and the patients were informed to register the pain and any other complications in these sheets. Results: The overall complication rate was 35 patients (23.02%). Twenty-three (15%) patients developed moderate to severe pain, immediately after the operation lasting till the 3rd or 4th day postoperatively. Five patients (3.42%) developed localized osteitis, four patients (2.73%) developed postoperative oozing that lasted for 5 days, and three cases (1.97%) developed postoperative infection. None of the patients developed postoperative lingual nerve or inferior alveolar nerve dysfunction. Conclusion: Postoperative pain is the main complication after surgical removal of impacted lower wisdom teeth and alveolar osteitis is the second most important complication. Inferior alveolar nerve, lingual nerve damage and bleeding are very rare complications. The complications can be minimized by careful surgical extraction, postoperative medication and following postoperative instructions.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90116623","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}
ABSTRACT: to study the effect of finishing and smoothing composite resin restoratives on discoloration of composite resin by different staining solutions . MATERIALS AND METHODS: forty samples of tetric composite were made. These samples were divided into 4 groups. Each group was treated with a type of surface finish and immersed either in tea or coffee solution. RESULTS: The results showed that composite resin surface finished with Mylar strip and immersed in coffee was the most susceptible surface to discoloration and the least one was that immersed in tea. CONCLUSION: composite resin surface should be finished and polished despite the smooth finish of the Mylar strip.
{"title":"Effect of Different Finishing and Polishing Procedures on The Discoloration of Composite Resin","authors":"Zeena T. Abdul Hadi Al Ani","doi":"10.26477/IDJ.V37I2.47","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.47","url":null,"abstract":"ABSTRACT: to study the effect of finishing and smoothing composite resin restoratives on discoloration of composite resin by different staining solutions . MATERIALS AND METHODS: forty samples of tetric composite were made. These samples were divided into 4 groups. Each group was treated with a type of surface finish and immersed either in tea or coffee solution. RESULTS: The results showed that composite resin surface finished with Mylar strip and immersed in coffee was the most susceptible surface to discoloration and the least one was that immersed in tea. CONCLUSION: composite resin surface should be finished and polished despite the smooth finish of the Mylar strip.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86881848","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}
Background: Soft lining denture base materials have a key role in modern prosthodontics, but the major problem with soft linings is that they show change in the sorption and solubility after being used for a long period, which lead to dramatically effect on the dimensional stability and on the adhesion of soft lining acrylic denture base material. The purpose of this study was to investigate the effect of adding plant oil extracts on sorption and solubility of soft linings as well as the effect of different pH levels of artificial saliva at different times of immersion on sorption and solubility of soft linings. Materials and methods: 270 specimens were made from heat cured soft liner materials and divided into three groups (90 specimens in each group) according to the addition of ginger oil extracts. The first group was the control group made of soft liners only without adding ginger oil; we added 2% of ginger oil extract to the second group and 5% to the third group. Each group was divided into subgroups according to the immersion time of different pH artificial saliva levels (neutral, basic and acidic). There were three different periods of immersion: 1week, 3 weeks and 6 weeks. The sorption and solubility of each specimen were measured separately. Results: The results showed that there was no significant difference in the sorption and solubility of soft linings when adding plant oil extracts, but there was a highly significant difference when different pH levels of artificial saliva were used. The result also showed a highly significant difference when we used different times of immersion. Conclusion: The findings of the study concluded that there was no effect on the sorption and solubility of the soft liners when adding plant oil extracts and there was a highly significant difference on the sorption and solubility of soft lining materials when immersed in different pH levels of artificial saliva at different periods.
{"title":"Evaluation of Adding Ginger Oil on Sorption and Solubility of Soft Liners Using Different Saliva PH Levels","authors":"H. K. Aziz","doi":"10.26477/IDJ.V37I2.42","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.42","url":null,"abstract":"Background: Soft lining denture base materials have a key role in modern prosthodontics, but the major problem with soft linings is that they show change in the sorption and solubility after being used for a long period, which lead to dramatically effect on the dimensional stability and on the adhesion of soft lining acrylic denture base material. The purpose of this study was to investigate the effect of adding plant oil extracts on sorption and solubility of soft linings as well as the effect of different pH levels of artificial saliva at different times of immersion on sorption and solubility of soft linings. Materials and methods: 270 specimens were made from heat cured soft liner materials and divided into three groups (90 specimens in each group) according to the addition of ginger oil extracts. The first group was the control group made of soft liners only without adding ginger oil; we added 2% of ginger oil extract to the second group and 5% to the third group. Each group was divided into subgroups according to the immersion time of different pH artificial saliva levels (neutral, basic and acidic). There were three different periods of immersion: 1week, 3 weeks and 6 weeks. The sorption and solubility of each specimen were measured separately. Results: The results showed that there was no significant difference in the sorption and solubility of soft linings when adding plant oil extracts, but there was a highly significant difference when different pH levels of artificial saliva were used. The result also showed a highly significant difference when we used different times of immersion. Conclusion: The findings of the study concluded that there was no effect on the sorption and solubility of the soft liners when adding plant oil extracts and there was a highly significant difference on the sorption and solubility of soft lining materials when immersed in different pH levels of artificial saliva at different periods.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79846056","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 effect of sulcular injection of 50μl of 150mM fucose on rabbits with bone trauma. Background: α-L-Fucose is a methyl pentose sugar similar to L-galactose except for the loss of alcohol group on carbon number 6.It is found in human serum bound to proteins by covalent bonding and it is a member of a large group of compounds known as covalent bond membranes . Materials and Methods: The present study was carried out on 65 male rabbits, bone trauma was introduced into the mid- labial areas of facial plate of the alveolar bone of lower right central incisor for all rabbits . The rabbits had been left for 7 days after induction of bone trauma, then 5 rabbits were sacrificed and considered as a base line traumatic group . The remaining 60 rabbits were divided randomly into two 2 main groups, first group consist of 30 rabbits and were injected locally with 50μl of 150mM fucose solution into the bottom of gingival sulcus at the mid-labial area of lower right central incisor and were considered as fucose injected group and were divided randomly into six subgroups(each subgroup consist of 5 rabbits) , then periodontal tissue biopsy was collected from injected group at time intervals of 1, 3 ,7 ,14, , 21 , and 28 days after fucose injection , while the second group consist of 30 rabbits with bone trauma only and were not received any fucose injection and considered as non injected group and were divided randomly into six subgroups (each subgroup consist of 5 rabbits), sacrificed at time intervals of 8,10,14,21,28 ,and 35 days after induction of bone fracture. Results: The results showed that fucose injection enhanced bone regeneration and healing of traumatic bone in short duration of time, 1 day after sulucular injection of fucose (8 days after induction of bone fracture). Conclusion: α-L- Fucose can be used as a bone stimulating agent which stimulate and accelerate new bone formation, so fucose can be used in the treatment of alveolar bone defect in periodontitis patient
{"title":"The Histopathological Effect of Local Injection of Fucose on Bone Fracture :An Experimental Study on Rabbits","authors":"C. Mohammad, A. Aziz, Aveen Ajeel","doi":"10.26477/IDJ.V37I2.48","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.48","url":null,"abstract":"Aim: To evaluate the effect of sulcular injection of 50μl of 150mM fucose on rabbits with bone trauma. Background: α-L-Fucose is a methyl pentose sugar similar to L-galactose except for the loss of alcohol group on carbon number 6.It is found in human serum bound to proteins by covalent bonding and it is a member of a large group of compounds known as covalent bond membranes . Materials and Methods: The present study was carried out on 65 male rabbits, bone trauma was introduced into the mid- labial areas of facial plate of the alveolar bone of lower right central incisor for all rabbits . The rabbits had been left for 7 days after induction of bone trauma, then 5 rabbits were sacrificed and considered as a base line traumatic group . The remaining 60 rabbits were divided randomly into two 2 main groups, first group consist of 30 rabbits and were injected locally with 50μl of 150mM fucose solution into the bottom of gingival sulcus at the mid-labial area of lower right central incisor and were considered as fucose injected group and were divided randomly into six subgroups(each subgroup consist of 5 rabbits) , then periodontal tissue biopsy was collected from injected group at time intervals of 1, 3 ,7 ,14, , 21 , and 28 days after fucose injection , while the second group consist of 30 rabbits with bone trauma only and were not received any fucose injection and considered as non injected group and were divided randomly into six subgroups (each subgroup consist of 5 rabbits), sacrificed at time intervals of 8,10,14,21,28 ,and 35 days after induction of bone fracture. Results: The results showed that fucose injection enhanced bone regeneration and healing of traumatic bone in short duration of time, 1 day after sulucular injection of fucose (8 days after induction of bone fracture). Conclusion: α-L- Fucose can be used as a bone stimulating agent which stimulate and accelerate new bone formation, so fucose can be used in the treatment of alveolar bone defect in periodontitis patient","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80406298","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}
The establishment of a high quality service in oral health care achieved by a member of dental professional is an important feature of any system of peer review in dentistry. This protocol attempts to discuss two crucial elements (I) suitability and feasibility of treatment modality and (II) quality of treatment performed to Iraqi patients. The Iraq endodontic society is designing a standardized protocol for endodontic treatment following the quality guidelines of European society of Endodontology (2006) to meet the highest standard of care generally given by competent practitioners. The Iraqi endodontic society has the expertise and professional responsibility clinically relevant to empower the dental profession through creating significant guidelines on the standard of care in the endodontic discipline. Because there is multiple way of performing endodontic treatment, this standardized protocol has been designed in broad terms.
{"title":"Standardized Protocol for Endodontic Treatment (Iraqi Endodontic Society)","authors":"Raghad A. Al-Hashimi, Hussain F. Al-huwaizi","doi":"10.26477/IDJ.V37I2.46","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.46","url":null,"abstract":"The establishment of a high quality service in oral health care achieved by a member of dental professional is an important feature of any system of peer review in dentistry. This protocol attempts to discuss two crucial elements (I) suitability and feasibility of treatment modality and (II) quality of treatment performed to Iraqi patients. The Iraq endodontic society is designing a standardized protocol for endodontic treatment following the quality guidelines of European society of Endodontology (2006) to meet the highest standard of care generally given by competent practitioners. The Iraqi endodontic society has the expertise and professional responsibility clinically relevant to empower the dental profession through creating significant guidelines on the standard of care in the endodontic discipline. Because there is multiple way of performing endodontic treatment, this standardized protocol has been designed in broad terms.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86510664","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}
Ali J. Abdul-Saheb, Resha J. Abdul-Saheb, A. Fatihallah
Background: Previously, the flapped dental implant surgery was the most common implant placement procedure. With the development of different implantation techniques, the flapless surgery is now available for implant placement. The aim of this study was to evaluate the effect of the flapless surgical technique for implant placement on bone level compared with the flapped surgery technique with the aid of panoramic imaging. Materials and methods: The study comprised 10 patients, 20 dental implants investigated, two implants placed for each patient (one implant placed with a flapped procedure and the other with a flapless surgical technique). Utilizing panoramic view pre- and post-surgical treatment, the crestal bone level at different intervals (1 week, 4 weeks and 12 week) has been compared. Results: When comparing flapped and flapless implant surgical procedures at different time intervals, the flapless surgical technique showed less bone level reduction, on the other hand no significant results obtained when comparing the surgical techniques in the maxillary and mandibular arches. Conclusion: Flapless implant placement provides less bone level reduction compared with the flapped technique.
{"title":"Comparison Between Flapped and Flapless Implant Techniques by Measuring Crestal Bone Level: A Prospective Radiographical Trial","authors":"Ali J. Abdul-Saheb, Resha J. Abdul-Saheb, A. Fatihallah","doi":"10.26477/IDJ.V37I2.43","DOIUrl":"https://doi.org/10.26477/IDJ.V37I2.43","url":null,"abstract":"Background: Previously, the flapped dental implant surgery was the most common implant placement procedure. With the development of different implantation techniques, the flapless surgery is now available for implant placement. The aim of this study was to evaluate the effect of the flapless surgical technique for implant placement on bone level compared with the flapped surgery technique with the aid of panoramic imaging. Materials and methods: The study comprised 10 patients, 20 dental implants investigated, two implants placed for each patient (one implant placed with a flapped procedure and the other with a flapless surgical technique). Utilizing panoramic view pre- and post-surgical treatment, the crestal bone level at different intervals (1 week, 4 weeks and 12 week) has been compared. Results: When comparing flapped and flapless implant surgical procedures at different time intervals, the flapless surgical technique showed less bone level reduction, on the other hand no significant results obtained when comparing the surgical techniques in the maxillary and mandibular arches. Conclusion: Flapless implant placement provides less bone level reduction compared with the flapped technique.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73804734","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}
Background: Residual monomer is one of the undesirable factors affecting the properties of acrylic resin denture bases this study compared the influence of addition silanated glass fiber(SGF) to two types of acrylic (heat &light cured resin) on the amount of residual monomer methyl methacrylate (MMA) at different periods of time. Materials and Methods: specimens of heat and light cured denture base materials reinforced with(2mm length, 2wt%)(SGF) were measured for their amount of residual monomer (MMA)by using high-performance liquid chromatography (HPLC) after(3days, 7days, 14days, and 30days). Results: The amount of residual monomer in reinforced groups with (SGF) either heat or light cured resin was less than non reinforced groups. The amount of residual monomer in heat cured resin was higher significance than light-cured resin and the amount of residual monomer of both types of acrylic decreased with time increased. conclusion: The addition of 2% silainated glass fiber to the both heat cured & light cured resin slightly decrease the amount of residual monomer.
{"title":"Evaluation Amount of Residual Monomer in Two Types of Denture Base Materials Heat and Light Cure Acrylic Reinforced with Silainated Glass Fiber","authors":"R. K. Jassim, A. Radhi","doi":"10.26477/IDJ.V37I1.35","DOIUrl":"https://doi.org/10.26477/IDJ.V37I1.35","url":null,"abstract":"Background: Residual monomer is one of the undesirable factors affecting the properties of acrylic resin denture bases this study compared the influence of addition silanated glass fiber(SGF) to two types of acrylic (heat &light cured resin) on the amount of residual monomer methyl methacrylate (MMA) at different periods of time. Materials and Methods: specimens of heat and light cured denture base materials reinforced with(2mm length, 2wt%)(SGF) were measured for their amount of residual monomer (MMA)by using high-performance liquid chromatography (HPLC) after(3days, 7days, 14days, and 30days). Results: The amount of residual monomer in reinforced groups with (SGF) either heat or light cured resin was less than non reinforced groups. The amount of residual monomer in heat cured resin was higher significance than light-cured resin and the amount of residual monomer of both types of acrylic decreased with time increased. conclusion: The addition of 2% silainated glass fiber to the both heat cured & light cured resin slightly decrease the amount of residual monomer.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80560858","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}
Background: A chemical immersed denture cleanser is the most widely used method by patients to maintain a clean and healthy denture, but the use of such a cleanser may have harmful effect on the denture base materials. The aim of this study is to evaluate the effect of two prepared cleansers (4% tartaric acid & 4% sodium bicarbonate) solutions, and one commercially cleanser (Lacalut dent) on the impact strength of heat cure acrylic denture base material. Methods: Forty specimens of heat cured acrylic with dimensions (55mm length* 10mm width* 5mm thickness) were prepared and divided into four subgroups, 10 specimens for each, according to the type of denture cleanser solution, (distilled water as a control group, solution of tartaric acid, solution of sodium bicarbonate, Lacalut dent solution). All the specimens in the four groups were immersed in the solutions and kept in an incubator at 37oC all the time between each soaking till the measurements were done. The testing machine was a Charpy type machine tester. Conclusions: The conventional heat cured acrylic cannot be safely soaked in (4% tartaric acid) which contains isopropyl alcohol because it decreases the impact strength, so it is advised not to use solutions containing alcohol as acrylic denture cleansers. Lacalut dent which is an oxygenating commercial denture cleanser had the lowest adverse effects on the impact strength of heat cured acrylic. Practical implications: It is advisable not to use a cleanser of (4% tartaric acid) which contains isopropyl alcohol because it decreases the impact strength. Lacalut dent is the best among the solutions used in this study.
{"title":"Denture Cleanser's Effect on Impact Strength of Heat Cured Acrylic","authors":"A. Ahmad","doi":"10.26477/IDJ.V37I1.31","DOIUrl":"https://doi.org/10.26477/IDJ.V37I1.31","url":null,"abstract":"Background: A chemical immersed denture cleanser is the most widely used method by patients to maintain a clean and healthy denture, but the use of such a cleanser may have harmful effect on the denture base materials. The aim of this study is to evaluate the effect of two prepared cleansers (4% tartaric acid & 4% sodium bicarbonate) solutions, and one commercially cleanser (Lacalut dent) on the impact strength of heat cure acrylic denture base material. Methods: Forty specimens of heat cured acrylic with dimensions (55mm length* 10mm width* 5mm thickness) were prepared and divided into four subgroups, 10 specimens for each, according to the type of denture cleanser solution, (distilled water as a control group, solution of tartaric acid, solution of sodium bicarbonate, Lacalut dent solution). All the specimens in the four groups were immersed in the solutions and kept in an incubator at 37oC all the time between each soaking till the measurements were done. The testing machine was a Charpy type machine tester. Conclusions: The conventional heat cured acrylic cannot be safely soaked in (4% tartaric acid) which contains isopropyl alcohol because it decreases the impact strength, so it is advised not to use solutions containing alcohol as acrylic denture cleansers. Lacalut dent which is an oxygenating commercial denture cleanser had the lowest adverse effects on the impact strength of heat cured acrylic. Practical implications: It is advisable not to use a cleanser of (4% tartaric acid) which contains isopropyl alcohol because it decreases the impact strength. Lacalut dent is the best among the solutions used in this study.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75084593","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：