Aims: To evaluate and compare the denture satisfaction tendencies for and between the completely and partially edentulous patients, with different treatment’s modalities. Materials and Methods: The study was conducted to include twenty eight patients were fit to the criteria of the research, asked to answer some questions reflect their satisfaction with the newly received dentures, which were delivered to patients according to their conditions and needs (complete removable denture, conventional metal frame RPD, RPD with flexible Valplast clasps, and RPD with attachments). Results: The data collected from these patients was grouped and the questioners values were calculated to estimate the most satisfied group, which was seen with the group received RPD had Valplast esthetic clasps; But the significant difference analyzed by Mann-Whitney Test, was focused on the satisfaction of prostheses’ appearance, that was clearly revealed for the patients who received RPD with resilient attachments; followed by the group who received complete dentures, and RPD with Valplast clasp (at the same level), supported by the family and friends positive opinions. Also the same group that received RPD with attachments achieved optimum level in prosthesis’ satisfaction for retention. Conclusions: The results of this research directed the attention to the recent treatment modalities in construction dentures, like using flexible esthetic Valplast material and attachments; the patients that received RPD with tooth like color Valplast clasps appeared to be more satisfied with their prostheses, mostly this was related to the comfortability, esthetic and retention traits, followed with group that received RPD with attachments that showed significant differences in esthetic and retention scores than other groups. While the Complete denture wearers were the less satisfied group, related obviously to the difficulty to gain the retention in relation to the partial once, as well as the uncomfortable feelings.
{"title":"Assessment of The Satisfaction Tendency Toward Different Prosthodontic Treatments' Modalities","authors":"M. Kandil","doi":"10.26477/IDJ.V37I1.32","DOIUrl":"https://doi.org/10.26477/IDJ.V37I1.32","url":null,"abstract":"Aims: To evaluate and compare the denture satisfaction tendencies for and between the completely and partially edentulous patients, with different treatment’s modalities. Materials and Methods: The study was conducted to include twenty eight patients were fit to the criteria of the research, asked to answer some questions reflect their satisfaction with the newly received dentures, which were delivered to patients according to their conditions and needs (complete removable denture, conventional metal frame RPD, RPD with flexible Valplast clasps, and RPD with attachments). Results: The data collected from these patients was grouped and the questioners values were calculated to estimate the most satisfied group, which was seen with the group received RPD had Valplast esthetic clasps; But the significant difference analyzed by Mann-Whitney Test, was focused on the satisfaction of prostheses’ appearance, that was clearly revealed for the patients who received RPD with resilient attachments; followed by the group who received complete dentures, and RPD with Valplast clasp (at the same level), supported by the family and friends positive opinions. Also the same group that received RPD with attachments achieved optimum level in prosthesis’ satisfaction for retention. Conclusions: The results of this research directed the attention to the recent treatment modalities in construction dentures, like using flexible esthetic Valplast material and attachments; the patients that received RPD with tooth like color Valplast clasps appeared to be more satisfied with their prostheses, mostly this was related to the comfortability, esthetic and retention traits, followed with group that received RPD with attachments that showed significant differences in esthetic and retention scores than other groups. While the Complete denture wearers were the less satisfied group, related obviously to the difficulty to gain the retention in relation to the partial once, as well as the uncomfortable feelings.","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":"91410718","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: Heat-cured acrylic resin is considered one of the most commonly used denture base material in denture construction, but this material is not ideal in every respect. So many researches have been carried out to find an alternative material like cross linking acrylic resin. Meanwhile, the curing procedures have been modified to improve the physical and mechanical properties of resin materials .The aim of this study was to evaluate the effect of three curing methods:(water bath, autoclave short cycle and autoclave long cycle) on transverse strength, tensile strength and surface roughness of cross linking acrylic denture base materials. Material and method: Cross linking acrylic resin was used in this study and processed in three curing methods (water bath, autoclave short cycle and autoclave long cycle). Ninety specimens were prepared. Each main group was subdivided into three subgroups according to the type of test used (transvers strength test, tensile strength test and surface roughness test). Each group contained 10 specimens for each test. Result: Three tests were used to analyze the results: analysis of variance (ANOVA), the least significant difference (LSD) and an independent T-test. There were no significant differences between the results of the processing techniques regarding transverse and tensile strength but there was a significant difference between the results of surface roughness tests. Conclusion: It was concluded that autoclave curing method can be used with different duration whether it is short or long instead of water bath curing method.
{"title":"Strength and Surface Roughness of Cross Linking Acrylic Resin Processed by Different Heat Curing Methods","authors":"Ali Kareem","doi":"10.26477/IDJ.V37I1.34","DOIUrl":"https://doi.org/10.26477/IDJ.V37I1.34","url":null,"abstract":"Background: Heat-cured acrylic resin is considered one of the most commonly used denture base material in denture construction, but this material is not ideal in every respect. So many researches have been carried out to find an alternative material like cross linking acrylic resin. Meanwhile, the curing procedures have been modified to improve the physical and mechanical properties of resin materials .The aim of this study was to evaluate the effect of three curing methods:(water bath, autoclave short cycle and autoclave long cycle) on transverse strength, tensile strength and surface roughness of cross linking acrylic denture base materials. Material and method: Cross linking acrylic resin was used in this study and processed in three curing methods (water bath, autoclave short cycle and autoclave long cycle). Ninety specimens were prepared. Each main group was subdivided into three subgroups according to the type of test used (transvers strength test, tensile strength test and surface roughness test). Each group contained 10 specimens for each test. Result: Three tests were used to analyze the results: analysis of variance (ANOVA), the least significant difference (LSD) and an independent T-test. There were no significant differences between the results of the processing techniques regarding transverse and tensile strength but there was a significant difference between the results of surface roughness tests. Conclusion: It was concluded that autoclave curing method can be used with different duration whether it is short or long instead of water bath curing method.","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":"89567928","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}
Lateef Essa Alwan Al-Jourani, Sabah Sahib Al-Habeeb, O. Abdullah
Background: Rough dental porcelain surface due to incorrect glazing technique or occlusal adjustment can cause wear of opposing teeth and tissue irritation. The aim of this study was to measure the surface roughness of low-fusing dental porcelain after treatment with different polishing materials and glazing techniques. Materials and Methods: Seventy metal-ceramic specimens were fabricated and divided into seven groups according to type of surface treatment. Group I: Unglazed porcelain (control group). Group II: Porcelain polished with sandblast powder and then autoglazed, Group III: Porcelain polished with sandblast powder and then applied glaze. Group IV: Porcelain polished with sandblast powder and then porcelain rubber wheels. Group V: Porcelain polished with sandblast powder, porcelain rubber wheel and then polishing paste. Group VI: Porcelain polished with sandblast powder, porcelain rubber wheels, polishing paste and then autoglazed Group VII: Porcelain polished with sandblast powder, porcelain rubber wheels, polishing paste and then applied glazed. The surface roughness averages “Ra” of the specimens have been determined using the profilometer. Results: One way – ANOVA showed highly significant differences among tested groups. Group I showed roughest group with highly significant differences among all tested groups. Followed by group II with highly significant differences, then group III which showed no significant differences with group VII, which is the smoothest group scored. Also group IV showed “Ra” values compared with group VI. While group V showed slightly significant differences with group VII (LSD test). Conclusion: Polished porcelain with (rubber wheel and polishing paste) can be considered a good alternative to applied glazed of porcelain restoration which is characterized by time consuming and sensitive technique. Moreover, autoglazing porcelain followed by polishing or without polishing , proved to be disadvantageous since it increases surface roughness
{"title":"Surface Roughness of Dental Porcelain Fused-To-Nickel Chromium Using Different Polishing Materials and Glazing Techniques","authors":"Lateef Essa Alwan Al-Jourani, Sabah Sahib Al-Habeeb, O. Abdullah","doi":"10.26477/IDJ.V37I1.36","DOIUrl":"https://doi.org/10.26477/IDJ.V37I1.36","url":null,"abstract":"Background: Rough dental porcelain surface due to incorrect glazing technique or occlusal adjustment can cause wear of opposing teeth and tissue irritation. The aim of this study was to measure the surface roughness of low-fusing dental porcelain after treatment with different polishing materials and glazing techniques. Materials and Methods: Seventy metal-ceramic specimens were fabricated and divided into seven groups according to type of surface treatment. Group I: Unglazed porcelain (control group). Group II: Porcelain polished with sandblast powder and then autoglazed, Group III: Porcelain polished with sandblast powder and then applied glaze. Group IV: Porcelain polished with sandblast powder and then porcelain rubber wheels. Group V: Porcelain polished with sandblast powder, porcelain rubber wheel and then polishing paste. Group VI: Porcelain polished with sandblast powder, porcelain rubber wheels, polishing paste and then autoglazed Group VII: Porcelain polished with sandblast powder, porcelain rubber wheels, polishing paste and then applied glazed. The surface roughness averages “Ra” of the specimens have been determined using the profilometer. Results: One way – ANOVA showed highly significant differences among tested groups. Group I showed roughest group with highly significant differences among all tested groups. Followed by group II with highly significant differences, then group III which showed no significant differences with group VII, which is the smoothest group scored. Also group IV showed “Ra” values compared with group VI. While group V showed slightly significant differences with group VII (LSD test). Conclusion: Polished porcelain with (rubber wheel and polishing paste) can be considered a good alternative to applied glazed of porcelain restoration which is characterized by time consuming and sensitive technique. Moreover, autoglazing porcelain followed by polishing or without polishing , proved to be disadvantageous since it increases surface roughness","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":"75376773","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: Direct bonding of orthodontic attachment has removed some of the esthetic concerns many adults previously had when considering orthodontic therapy. With an increase in adult treatment comes the challenge of direct bonding to non-enamel surface, such as composite restoration. This in vitro study was designed to compare the effect of using three regimes of orthodontic adhesion systems on shear bond strength when bonded edgewise brackets to composite restoration. Materias and methods : The study samples were randomly divided into three groups (30 specimens each).Group I using resilience orthodontic adhesive material (4thgeneration) consist from acid-etching, primer and adhesive; group II using heliosit orthodontic adhesive (1stgeneration) consist from acid-etching and adhesive without bonding agent; group III using self-etching/self-bonding orthodontic adhesive (Totalcem) (7thgeneration). Results: The result of the study showed that the light cured bonding adhesive resilience orthodontic (group I) has the highest mean of shear bond strength (33.7 Mpa) followed by dual-cure automix bonding self-etch/self-bonding adhesive resin cement (23.6 Mpa). While the light cured bonding adhesive heliosit showed the lowest mean of shear bond strength (18.04 Mpa). The cohesive failure (score 2) was the predominant mode of the bond failure in group (I) (4thgeneration) of this study, also the adhesive– composite interface failure was the predominant especially in group (II) (1stgeneration). In group (III) (7thgeneration) while the adhesive -composite interface failure was predominant, but cohesive failure (score 2) and composite detachment (score 4) was found but in less percentage if compared with adhesive–composite interface failure in the same group.
{"title":"Comparison of Shear Bond Strength of Edgewise Bracket Bonded to Composite Restoration by Using Three Regimes of Orthodontic Adhesive Systems (In Vitro Study)","authors":"H. Hasan, Bayan A. Hassan","doi":"10.26477/IDJ.V37I1.37","DOIUrl":"https://doi.org/10.26477/IDJ.V37I1.37","url":null,"abstract":"Introduction: Direct bonding of orthodontic attachment has removed some of the esthetic concerns many adults previously had when considering orthodontic therapy. With an increase in adult treatment comes the challenge of direct bonding to non-enamel surface, such as composite restoration. This in vitro study was designed to compare the effect of using three regimes of orthodontic adhesion systems on shear bond strength when bonded edgewise brackets to composite restoration. Materias and methods : The study samples were randomly divided into three groups (30 specimens each).Group I using resilience orthodontic adhesive material (4thgeneration) consist from acid-etching, primer and adhesive; group II using heliosit orthodontic adhesive (1stgeneration) consist from acid-etching and adhesive without bonding agent; group III using self-etching/self-bonding orthodontic adhesive (Totalcem) (7thgeneration). Results: The result of the study showed that the light cured bonding adhesive resilience orthodontic (group I) has the highest mean of shear bond strength (33.7 Mpa) followed by dual-cure automix bonding self-etch/self-bonding adhesive resin cement (23.6 Mpa). While the light cured bonding adhesive heliosit showed the lowest mean of shear bond strength (18.04 Mpa). The cohesive failure (score 2) was the predominant mode of the bond failure in group (I) (4thgeneration) of this study, also the adhesive– composite interface failure was the predominant especially in group (II) (1stgeneration). In group (III) (7thgeneration) while the adhesive -composite interface failure was predominant, but cohesive failure (score 2) and composite detachment (score 4) was found but in less percentage if compared with adhesive–composite interface failure in the same group.","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":"86700720","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 purpose of this study was to investigate the histological changes in rat mandibular condyle during and after continuous mandibular advancement by using a fixed functional appliance. Materials and methods: Fifty-four male Sprague-Dawley rats (4–weeks-old), weight (100-120gm) were used for three month experimental period; control group (A=24 rats) and experimental group (B=30 rats). Group A and Group B were subdivided into 3 equal groups respectively (A1, A2, A3); (B1, B2, B3). All groups were fed ad libitum and were kept under the same environmental condition. Only group (B1, B2, B3) were subjected to a full time orthodontic inclined bite plane cemented to the incisors (fixed functional appliance) to advance the mandible, while group A still as a control group. At the end of the 1st month only group B1as a (full-time wearer)and A1 were sacrificed, while groups B2 and B3 continue as a half-day-wearer, retention period) till the end of the 2nd month, when group B2 and A2 were sacrificed. Remaining rats (Group B3) stayed without appliance, post retention period) during whole 3rd month were sacrificed at the end of third month with control (A3). Specimens of hemi-cranium for all scarified animals were cut and dissected, histopathological examination had been done. Results: An abundant cellular proliferation expressed at posterior border of the condylar cartilage in group B than in group A. Cellular proliferation without proper ossification was noticed on the condyles of young rats of group A. However, rats revealed a significant Condylar ossification and higher osteoblastic activity towards the last week of treatment and retention period with the mandibular Condylar growth was accelerated by bite-jumping appliance treatment and stable within limits after a certain period of retention. Conclusion:Mandibular Condylar changes were accelerated by using fixed functional appliances that increased osteogenesis noticed during active mandibular advancement.
{"title":"Rat Articular Condyle Changes During and After Continuous Mandibular Advancement: A Histomorphometric Study","authors":"Wissam Alhamadi, F. Saleh, A. Madwar","doi":"10.26477/IDJ.V36I2.12","DOIUrl":"https://doi.org/10.26477/IDJ.V36I2.12","url":null,"abstract":"The purpose of this study was to investigate the histological changes in rat mandibular condyle during and after continuous mandibular advancement by using a fixed functional appliance. Materials and methods: Fifty-four male Sprague-Dawley rats (4–weeks-old), weight (100-120gm) were used for three month experimental period; control group (A=24 rats) and experimental group (B=30 rats). Group A and Group B were subdivided into 3 equal groups respectively (A1, A2, A3); (B1, B2, B3). All groups were fed ad libitum and were kept under the same environmental condition. Only group (B1, B2, B3) were subjected to a full time orthodontic inclined bite plane cemented to the incisors (fixed functional appliance) to advance the mandible, while group A still as a control group. At the end of the 1st month only group B1as a (full-time wearer)and A1 were sacrificed, while groups B2 and B3 continue as a half-day-wearer, retention period) till the end of the 2nd month, when group B2 and A2 were sacrificed. Remaining rats (Group B3) stayed without appliance, post retention period) during whole 3rd month were sacrificed at the end of third month with control (A3). Specimens of hemi-cranium for all scarified animals were cut and dissected, histopathological examination had been done. Results: An abundant cellular proliferation expressed at posterior border of the condylar cartilage in group B than in group A. Cellular proliferation without proper ossification was noticed on the condyles of young rats of group A. However, rats revealed a significant Condylar ossification and higher osteoblastic activity towards the last week of treatment and retention period with the mandibular Condylar growth was accelerated by bite-jumping appliance treatment and stable within limits after a certain period of retention. Conclusion:Mandibular Condylar changes were accelerated by using fixed functional appliances that increased osteogenesis noticed during active mandibular advancement.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89881581","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: Dental trauma in children and adolescents is a common public health problem in all societies and the prevalence of these injuries has increased during the past few decades. Injury of permanent teeth may cause cosmetic, functional and psychological problems to the patient. The aim of this study was to investigate the prevalence and severity of traumatized anterior teeth in relation to age, gender, type of injury and type of occlusion. Materials and methods: An epidemiological survey was conducted through clinical exanimation of permanent anterior teeth among 3855 students, 13-15 years old enrolled in 17 public intermediate schools in Hilla city. Dental trauma were assessed according to Garcia-Godoy classification. Recording the type of occlusion according to criteria of Millis. Results: The prevalence of students with traumatic dental injuries was 7.1% of the total sample. Simple enamel fracture was the most common type of injury among traumatized teeth while luxation was the least common type of dental injury. Males were more affected than females with statistically significant difference (P 0.05). The highest prevalence of dental trauma was recorded among the 14 year age (7.9%). Most of the traumatized subjects had only one tooth traumatized (71.3%).The highest prevalence of traumatized students were found with class II division 1 malocclusion. Conclusion: The prevalence of traumatized dental injuries was highly associated with gender and with class II division 1 malocclusion while it was not associated with age. Simple enamel fracture was the most common type of injury. Keywords: Dental trauma, permanent teeth, type of occlusion.
{"title":"Traumatized Anterior Teeth among 13-15 Years Old Intermediate School Students in Hilla City, Babylon Governorate- Iraq","authors":"H. F. Farhan, A. Mohammed","doi":"10.26477/IDJ.V36I1.4","DOIUrl":"https://doi.org/10.26477/IDJ.V36I1.4","url":null,"abstract":"Background: Dental trauma in children and adolescents is a common public health problem in all societies and the prevalence of these injuries has increased during the past few decades. Injury of permanent teeth may cause cosmetic, functional and psychological problems to the patient. The aim of this study was to investigate the prevalence and severity of traumatized anterior teeth in relation to age, gender, type of injury and type of occlusion. Materials and methods: An epidemiological survey was conducted through clinical exanimation of permanent anterior teeth among 3855 students, 13-15 years old enrolled in 17 public intermediate schools in Hilla city. Dental trauma were assessed according to Garcia-Godoy classification. Recording the type of occlusion according to criteria of Millis. Results: The prevalence of students with traumatic dental injuries was 7.1% of the total sample. Simple enamel fracture was the most common type of injury among traumatized teeth while luxation was the least common type of dental injury. Males were more affected than females with statistically significant difference (P 0.05). The highest prevalence of dental trauma was recorded among the 14 year age (7.9%). Most of the traumatized subjects had only one tooth traumatized (71.3%).The highest prevalence of traumatized students were found with class II division 1 malocclusion. Conclusion: The prevalence of traumatized dental injuries was highly associated with gender and with class II division 1 malocclusion while it was not associated with age. Simple enamel fracture was the most common type of injury. Keywords: Dental trauma, permanent teeth, type of occlusion.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75488451","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}
Objectives of the study: To determine the extent of tempromandibular joint involvement in patients with osteoarthritis. To evaluate the correlation between clinical findings and radiographical findings.To evaluate of the accuracy of sonography in detection of osteoarthritic changes compared to Computed tomography. Materials and methods: thirty six patients are exposed to CT scan(64-Brilliance) and compared the results with sonography(12.5Mhz) for evaluation of radiological changes, comparison between clinical and radiololgic changes also have been taken. Results: There was significant correlation between clicking and joint effusion in computed tomography(CT),while tenderness showed significant correlation with osteophyte and joint effusion in sonography,other correlations show no significant correlation between clinical and radiological changes. Conclusions: The radiographic changes in tempromandibular joint were positively correlated with duration of osteoarthritis. Sonography was more likely to be sensitive rather than specific in detection of osteoarthritic changes.
{"title":"Evaluation of the Involvement of the Tempromandibular Joint in Patients with Osteoarthritis Using Computed Tomography Compared to Sonography for Detection of Osteoarthritic Changes.","authors":"Hajer Ibrahim, S. Alnuaimi, Ahmed Othman","doi":"10.26477/IDJ.V36I3.20","DOIUrl":"https://doi.org/10.26477/IDJ.V36I3.20","url":null,"abstract":"Objectives of the study: To determine the extent of tempromandibular joint involvement in patients with osteoarthritis. To evaluate the correlation between clinical findings and radiographical findings.To evaluate of the accuracy of sonography in detection of osteoarthritic changes compared to Computed tomography. Materials and methods: thirty six patients are exposed to CT scan(64-Brilliance) and compared the results with sonography(12.5Mhz) for evaluation of radiological changes, comparison between clinical and radiololgic changes also have been taken. Results: There was significant correlation between clicking and joint effusion in computed tomography(CT),while tenderness showed significant correlation with osteophyte and joint effusion in sonography,other correlations show no significant correlation between clinical and radiological changes. Conclusions: The radiographic changes in tempromandibular joint were positively correlated with duration of osteoarthritis. Sonography was more likely to be sensitive rather than specific in detection of osteoarthritic changes.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76300614","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}
Hassan Moyasser Dawood Al-Nuaimy, Hussein Ahmad Jasim Al-Obaidy
Background: Mini-screw implants have become an accepted and reliable method for providing orthodontic anchorage. The present study aimed to measure the primary and secondary stability of mini-screw implants using the removal torque value as indictor for the stability and comparing between four different periods of mini-screw implants removal (Immediate, 2 weeks, 4 weeks and 6 weeks). Materials and Methods: Forty mini-screw implants, all of the same manufacture, length (7 mm), diameter (1.4 mm) and of cylinder type, were implanted in the tibia bone of two sheep (ten in each tibia) after anesthesia and flap reflection using drilling burs. The insertion torque were standardized and equalized for all mini-screws. Mini-screw implants were removed after different periods of time (immediately, 2 weeks, 4 weeks and 6 weeks) using digital torque screw driver (DID-4). One-way ANOVA test was used to compare among the groups. Results: The results showed that mini-screw implants stability significantly decreased during the first two weeks then started to increase during the four and six weeks. Conclusions: It was concluded from this study that mini-screw implants stability is affected by the period of implantation, decreased during the first two weeks and then started to increase.
{"title":"The Effect of Time on Orthodontic Mini-Screw Implants Stability (An experimental study)","authors":"Hassan Moyasser Dawood Al-Nuaimy, Hussein Ahmad Jasim Al-Obaidy","doi":"10.26477/IDJ.V36I3.27","DOIUrl":"https://doi.org/10.26477/IDJ.V36I3.27","url":null,"abstract":"Background: Mini-screw implants have become an accepted and reliable method for providing orthodontic anchorage. The present study aimed to measure the primary and secondary stability of mini-screw implants using the removal torque value as indictor for the stability and comparing between four different periods of mini-screw implants removal (Immediate, 2 weeks, 4 weeks and 6 weeks). Materials and Methods: Forty mini-screw implants, all of the same manufacture, length (7 mm), diameter (1.4 mm) and of cylinder type, were implanted in the tibia bone of two sheep (ten in each tibia) after anesthesia and flap reflection using drilling burs. The insertion torque were standardized and equalized for all mini-screws. Mini-screw implants were removed after different periods of time (immediately, 2 weeks, 4 weeks and 6 weeks) using digital torque screw driver (DID-4). One-way ANOVA test was used to compare among the groups. Results: The results showed that mini-screw implants stability significantly decreased during the first two weeks then started to increase during the four and six weeks. Conclusions: It was concluded from this study that mini-screw implants stability is affected by the period of implantation, decreased during the first two weeks and then started to increase.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80772690","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 and Objectives: The study was designed to quantitatively evaluate the quality of root canal preparation in canals treated with either rotary (ProTaper Next) or self adjusting files (SAF), using high resolution three-dimensional micro–computed tomographic (Micro-CT) analysis Methods : twenty extracted single canal tooth were selected, the root canal divided in 2 groups. In the first group, the root canal instrumented by using ProTaper Next rotary system and the root canal irrigated with 4ml of NaOCl after each instrument. The root canals in the second group were prepared using SAF for 2min, with continuous irrigation (NaOCl), after rescanning, the area of the canal wall unaffected by the preparation procedure was analyzed using before and after micro-CT images. Result: A high percentage of unaffected root canal walls were found in canals treated with rotary files, with no significant difference between two groups. Conclusion: Within the limitations of the present study, the self-adjusting files allowed better cleaning and shaping of the root canal filling than those allowed by rotary files.
{"title":"The Quality of Root Canal Preparation in Canals Treated with Rotary versus Self-adjusting Files: A Three-Dimensional Micro-Computed Tomography Study","authors":"D. K. Baker, B. K. Amin, S. Saleem","doi":"10.26477/idj.v36i3.29","DOIUrl":"https://doi.org/10.26477/idj.v36i3.29","url":null,"abstract":"Background and Objectives: The study was designed to quantitatively evaluate the quality of root canal preparation in canals treated with either rotary (ProTaper Next) or self adjusting files (SAF), using high resolution three-dimensional micro–computed tomographic (Micro-CT) analysis Methods : twenty extracted single canal tooth were selected, the root canal divided in 2 groups. In the first group, the root canal instrumented by using ProTaper Next rotary system and the root canal irrigated with 4ml of NaOCl after each instrument. The root canals in the second group were prepared using SAF for 2min, with continuous irrigation (NaOCl), after rescanning, the area of the canal wall unaffected by the preparation procedure was analyzed using before and after micro-CT images. Result: A high percentage of unaffected root canal walls were found in canals treated with rotary files, with no significant difference between two groups. Conclusion: Within the limitations of the present study, the self-adjusting files allowed better cleaning and shaping of the root canal filling than those allowed by rotary files.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88525549","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 and objectives: to determine the prevalence of prostheses requested by Erbil city, prosthesis is an artificial substitute that replaces the missing part. Material and Methods: totally 405 people aged 30 - 79 years were randomly taken as source of data in Erbil population; the chart was filled up in an interview then managed statistically. Several types of data were obtained to reach the most appropriate decision. Results: The persons were subdivided in to dentate (28.15 %) and edentulous (71.85 %), the edentulous fall in to two categories, with appliances (47.1%) and without appliances (52.9%) were the with appliance are subdivided to; implant (1.72%), bridge (13.33%), partial denture (13.58%) and complete denture (6.17%), The main reason for non seeking replacement was education (65.58%). Discussion: Edentulism is considered one of the most common problems in the word, Erbil city is one of these cities. Conclusions: The results shown that persons who don’t wear appliance are more than those who wear it and education factors are the reasons for its rejection.
{"title":"Prevalence of Prosthodontic Appliances Replacement in Erbil City","authors":"Ghalib Rahman Hawrami","doi":"10.26477/IDJ.V36I3.25","DOIUrl":"https://doi.org/10.26477/IDJ.V36I3.25","url":null,"abstract":"Background and objectives: to determine the prevalence of prostheses requested by Erbil city, prosthesis is an artificial substitute that replaces the missing part. Material and Methods: totally 405 people aged 30 - 79 years were randomly taken as source of data in Erbil population; the chart was filled up in an interview then managed statistically. Several types of data were obtained to reach the most appropriate decision. Results: The persons were subdivided in to dentate (28.15 %) and edentulous (71.85 %), the edentulous fall in to two categories, with appliances (47.1%) and without appliances (52.9%) were the with appliance are subdivided to; implant (1.72%), bridge (13.33%), partial denture (13.58%) and complete denture (6.17%), The main reason for non seeking replacement was education (65.58%). Discussion: Edentulism is considered one of the most common problems in the word, Erbil city is one of these cities. Conclusions: The results shown that persons who don’t wear appliance are more than those who wear it and education factors are the reasons for its rejection.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90575206","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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