Introduction: The masseter and the anterior part of the temporalis are the muscles mainly responsible for the clenching function. Clenching patterns and the activity of these muscles are not expected to differ between male and females, nor between different occlusal classes. Objective: The aim of this study was to determine whether the activity index of the masseter and temporalis muscles is related to occlusal class and gender. Methods: This study involved 145 eighteen-year-old Caucasian volunteers who underwent surface electromyography. The sEMG was analyzed at the moment of 100% occlusal contact. Occlusal classes were determined used plaster casts. Results: The Class I group contained 34 males and 63 females, while Class II had 11 males and 25 females. Comparison of the AcI data showed an insignificant relation between the genders in the activity indices of Classes I and II. Significant relation between male gender and predominance of the masseter muscles, as well as between female gender and an almost equal balance between the muscles, though with a tendency towards a predominance of the temporalis anterior. Conclusion: The activity of masseter muscles during clenching the teeth is bigger in the male than in the female group. Activity index is related to gender.
{"title":"Electromyographic Activity of Masticatory Muscles in Asymptomatic Young Adults","authors":"A. Wieczorek, M. Pihut, Jolanta E. Loster","doi":"10.14693/jdi.v29i2.1323","DOIUrl":"https://doi.org/10.14693/jdi.v29i2.1323","url":null,"abstract":"Introduction: The masseter and the anterior part of the temporalis are the muscles mainly responsible for the clenching function. Clenching patterns and the activity of these muscles are not expected to differ between male and females, nor between different occlusal classes. Objective: The aim of this study was to determine whether the activity index of the masseter and temporalis muscles is related to occlusal class and gender. Methods: This study involved 145 eighteen-year-old Caucasian volunteers who underwent surface electromyography. The sEMG was analyzed at the moment of 100% occlusal contact. Occlusal classes were determined used plaster casts. Results: The Class I group contained 34 males and 63 females, while Class II had 11 males and 25 females. Comparison of the AcI data showed an insignificant relation between the genders in the activity indices of Classes I and II. Significant relation between male gender and predominance of the masseter muscles, as well as between female gender and an almost equal balance between the muscles, though with a tendency towards a predominance of the temporalis anterior. Conclusion: The activity of masseter muscles during clenching the teeth is bigger in the male than in the female group. Activity index is related to gender.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49117803","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}
As research regarding the role of circadian rhythms, sleep, and the orexinergic system in neurodegenerative diseases is growing, it is surprising that the choroid plexus (CP) remains underappreciated in this realm. Despite its extensive role in the regulation of circadian rhythms and orexinergic signalling, as well as acting as the primary conduit between cerebrospinal fluid (CSF) and the circulatory system, providing a mechanism by which toxic waste molecules can be removed from the brain, the CP has been largely unexplored in neurodegeneration. In this review, we explore the role of the CP in maintaining brain homeostasis and circadian rhythms, regulating CSF dynamics, and how these functions change across the lifespan, from development to senescence. In addition, we examine the relationship between the CP, orexinergic signalling, and the glymphatic system, highlighting gaps in the literature and areas that require immediate exploration. Finally, we assess current knowledge, including possible therapeutic strategies, regarding the role of the CP in neurological disorders, such as traumatic brain injury, migraine, Alzheimer's disease, and multiple sclerosis.
{"title":"Choroid plexus function in neurological homeostasis and disorders: The awakening of the circadian clocks and orexins.","authors":"Jennaya Christensen, Crystal Li, Richelle Mychasiuk","doi":"10.1177/0271678X221082786","DOIUrl":"10.1177/0271678X221082786","url":null,"abstract":"<p><p>As research regarding the role of circadian rhythms, sleep, and the orexinergic system in neurodegenerative diseases is growing, it is surprising that the choroid plexus (CP) remains underappreciated in this realm. Despite its extensive role in the regulation of circadian rhythms and orexinergic signalling, as well as acting as the primary conduit between cerebrospinal fluid (CSF) and the circulatory system, providing a mechanism by which toxic waste molecules can be removed from the brain, the CP has been largely unexplored in neurodegeneration. In this review, we explore the role of the CP in maintaining brain homeostasis and circadian rhythms, regulating CSF dynamics, and how these functions change across the lifespan, from development to senescence. In addition, we examine the relationship between the CP, orexinergic signalling, and the glymphatic system, highlighting gaps in the literature and areas that require immediate exploration. Finally, we assess current knowledge, including possible therapeutic strategies, regarding the role of the CP in neurological disorders, such as traumatic brain injury, migraine, Alzheimer's disease, and multiple sclerosis.</p>","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":"26 1","pages":"1163-1175"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9207490/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88791910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mazarina Nurdini Malek, Z. Mat Yudin, Nor Faharina Abdul Hamid, Nor Asilah Harun, Suzanna Awang Bono
Mental illness is a psychological impairment involving emotions, cognitions, and behaviors, and its prevalence is increasing worldwide. Dental students may encounter patients with underlying psychological problems during their training. Objective: To evaluate dental students’ perception, attitude, and willingness to interact with patients with mental illness. Methods: A multi-center cross-sectional study was conducted involving undergraduates at three dental institutions in Malaysia using an online self-administered questionnaire. Descriptive data analysis was conducted and statistical analysis using chi-square test was done for associations (p < 0.05). Results: The response rate was 63% (225); the majority of respondents were female (77.8%) and of Malay ethnicity (88.4%). Our study found that positive attitudes are independent of respondents’ sociodemographic profiles. No significant differences in attitudes were portrayed by gender, race, or history of mental illness. Our findings suggest that respondents’ place of study, gender, and previous encounter with mental illness are associated with willingness to interact with patients (p < 0.05). Conclusions: Dental students displayed positive attitudes and willingness to interact with patients with mental illness. However, to further improve students’ attitudes and enhance their readiness to interact with patients with mental illness, more mental health-related educational programs should be introduced in the dental curricula.
{"title":"Dental Students’ Perception, Attitude and Willingness to Interact with Mental Illness Patients: A Multicentre Cross-Sectional Study","authors":"Mazarina Nurdini Malek, Z. Mat Yudin, Nor Faharina Abdul Hamid, Nor Asilah Harun, Suzanna Awang Bono","doi":"10.14693/jdi.v29i1.1322","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1322","url":null,"abstract":"Mental illness is a psychological impairment involving emotions, cognitions, and behaviors, and its prevalence is increasing worldwide. Dental students may encounter patients with underlying psychological problems during their training. Objective: To evaluate dental students’ perception, attitude, and willingness to interact with patients with mental illness. Methods: A multi-center cross-sectional study was conducted involving undergraduates at three dental institutions in Malaysia using an online self-administered questionnaire. Descriptive data analysis was conducted and statistical analysis using chi-square test was done for associations (p < 0.05). Results: The response rate was 63% (225); the majority of respondents were female (77.8%) and of Malay ethnicity (88.4%). Our study found that positive attitudes are independent of respondents’ sociodemographic profiles. No significant differences in attitudes were portrayed by gender, race, or history of mental illness. Our findings suggest that respondents’ place of study, gender, and previous encounter with mental illness are associated with willingness to interact with patients (p < 0.05). Conclusions: Dental students displayed positive attitudes and willingness to interact with patients with mental illness. However, to further improve students’ attitudes and enhance their readiness to interact with patients with mental illness, more mental health-related educational programs should be introduced in the dental curricula.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47136917","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}
This case involved the management of a possible cemental tear, which resulted in poor response to nonsurgical periodontal therapy. This case was managed by exploratory surgery, along with the intention to surgically reduce the periodontal pocket. Exploratory surgery revealed a localized cemental defect. The periodontium healed with pocket closure after exploratory surgery and open-flap debridement. The difficulty in clinically diagnosing a localized periodontal destruction and the lack of consensus on managing these cases were highlighted. The possibility of an undiagnosed cemental defect in a tooth with localized periodontitis should be considered in cases not responding to periodontal therapy.
{"title":"Management of Severe Localized Periodontal Destruction Associated with A Cemental Defect: A Case Report","authors":"Nik Madihah Nik Azis, N. Mohd","doi":"10.14693/jdi.v29i1.1306","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1306","url":null,"abstract":"This case involved the management of a possible cemental tear, which resulted in poor response to nonsurgical periodontal therapy. This case was managed by exploratory surgery, along with the intention to surgically reduce the periodontal pocket. Exploratory surgery revealed a localized cemental defect. The periodontium healed with pocket closure after exploratory surgery and open-flap debridement. The difficulty in clinically diagnosing a localized periodontal destruction and the lack of consensus on managing these cases were highlighted. The possibility of an undiagnosed cemental defect in a tooth with localized periodontitis should be considered in cases not responding to periodontal therapy.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42404659","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}
A. Hazar, Sinem Akgül, S. Kocak, Mustafa Murat Koçak
Objectives: This study aimed to compare the surface roughness of three anterior composite resins with different filler size, rate, and shape after brushing for 5000, 10000, and 20000 cycles with a whitening dentifrice. Methods: 44 disk-shaped specimens of each material (5mm diameter, 2mm depth) G-aenial Anterior, Harmonize, Asteria were prepared and divided into four groups according to the brushing cycles (Initial, 5000, 10000, and 20000 cycles). Initial surface roughness values (Ra-values) were assessed using a profilometer and measurements were repeated after each brushing cycle. 4 specimens from each composite resin were observed by scanning electron microscopy before and after brushing. The data were analyzed by Shapiro Wilk., ANOVA, Tukey, Friedman, and Wilcoxon tests (p<0.05). Results: The Ra-values of all groups increased in proportion to the number of brushing cycles (p<.05). The Ra-values of both Asteria and Harmonize were significantly lower than the G-aenial after all brushing cycles (p<0.05). Conclusion: All of the materials demonstrated surface irregularities after 20.000 brushing cycles corresponding to 24 months. The degree of surface alteration increased with brushing time and depends on the composite’s filler rate, size, and shape.
{"title":"Effect of Brushing Time with a Whitening Dentifrice on Surface Roughness of Anterior Composite ResinsRoughness of Anterior Composite Resi","authors":"A. Hazar, Sinem Akgül, S. Kocak, Mustafa Murat Koçak","doi":"10.14693/jdi.v29i1.1213","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1213","url":null,"abstract":"Objectives: This study aimed to compare the surface roughness of three anterior composite resins with different filler size, rate, and shape after brushing for 5000, 10000, and 20000 cycles with a whitening dentifrice. Methods: 44 disk-shaped specimens of each material (5mm diameter, 2mm depth) G-aenial Anterior, Harmonize, Asteria were prepared and divided into four groups according to the brushing cycles (Initial, 5000, 10000, and 20000 cycles). Initial surface roughness values (Ra-values) were assessed using a profilometer and measurements were repeated after each brushing cycle. 4 specimens from each composite resin were observed by scanning electron microscopy before and after brushing. The data were analyzed by Shapiro Wilk., ANOVA, Tukey, Friedman, and Wilcoxon tests (p<0.05). Results: The Ra-values of all groups increased in proportion to the number of brushing cycles (p<.05). The Ra-values of both Asteria and Harmonize were significantly lower than the G-aenial after all brushing cycles (p<0.05). Conclusion: All of the materials demonstrated surface irregularities after 20.000 brushing cycles corresponding to 24 months. The degree of surface alteration increased with brushing time and depends on the composite’s filler rate, size, and shape.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41428474","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: The aim of this study was to evaluate the effect of two polishing techniques and 10.000 thermocycles on the color stability, surface roughness, and hardness of two nanohybrid (Tetric N-Ceram, Escom100) and one bulkfill (Filtek) resin composites. Methods: A total of 60 specimens were prepared using three resin composites and 20 discs from each composite. Specimens for each composite were randomly divided into two different polishing groups (Optrapol rubber and Sof-Lex discs) (n=10). Surface roughness (Ra, μm), microhardness (VHN), and color change (ΔE00) values were measured pre- and post-thermocycling. Two-way analysis of variance (ANOVA) was used to evaluate the effect of independent variables. Bonferroni test was used for multiple comparisons (p<0.05). Results: Escom100 with Sof-Lex found the highest mean ΔE00 and Filtek bulk-fill composite with Optrapol found the lowest mean ΔE00. Escom100 with Sof-Lex exhibited the lowest Ra values in all groups. Sof-Lex discs exhibited smoother surfaces than Optrapol in all groups.. Among the polishing groups, Optrapols’ VHN values were higher than Sof-Lex’s (p<0.05). Conclusions: Filtek bulk-fill with Optrapol in terms of color change and microhardness; Escom100 (nanohybrid) with Sof-Lex in terms of smoothness, can be recommended for clinical use. After thermocycling, surface roughness values increased and surface hardness values decreased in all composite resins.
{"title":"Evaluation of the Effect of Two Polishing Techniques and Thermocycling Process on Surface Roughness, Hardness, and Color Stability of Composites","authors":"M. Fidan, Zeynep Derel","doi":"10.14693/jdi.v29i1.1259","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1259","url":null,"abstract":"Objectives: The aim of this study was to evaluate the effect of two polishing techniques and 10.000 thermocycles on the color stability, surface roughness, and hardness of two nanohybrid (Tetric N-Ceram, Escom100) and one bulkfill (Filtek) resin composites. Methods: A total of 60 specimens were prepared using three resin composites and 20 discs from each composite. Specimens for each composite were randomly divided into two different polishing groups (Optrapol rubber and Sof-Lex discs) (n=10). Surface roughness (Ra, μm), microhardness (VHN), and color change (ΔE00) values were measured pre- and post-thermocycling. Two-way analysis of variance (ANOVA) was used to evaluate the effect of independent variables. Bonferroni test was used for multiple comparisons (p<0.05). Results: Escom100 with Sof-Lex found the highest mean ΔE00 and Filtek bulk-fill composite with Optrapol found the lowest mean ΔE00. Escom100 with Sof-Lex exhibited the lowest Ra values in all groups. Sof-Lex discs exhibited smoother surfaces than Optrapol in all groups.. Among the polishing groups, Optrapols’ VHN values were higher than Sof-Lex’s (p<0.05). Conclusions: Filtek bulk-fill with Optrapol in terms of color change and microhardness; Escom100 (nanohybrid) with Sof-Lex in terms of smoothness, can be recommended for clinical use. After thermocycling, surface roughness values increased and surface hardness values decreased in all composite resins.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45364343","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}
MOHAMMED SHAMMAS, O. Wali, R. Alamoudi, Reem Alharbi, M. Nasser
Objectives: This study evaluated the perceived positive and negative general and oral health outcomes of patients after using mandibular distal extension partial removable dental prostheses (PRDPs) and assessed the effect of recall procedures on the treatment outcomes. Methods: A questionnaire comprising 20 items, pertaining to perceived positive and negative outcomes related to the patients’ perception scores after using mandibular distal extension PRDPs, was designed. The patients were recalled 1 week and 3 months after the insertion of the mandibular distal extension PRDPs. The perception scores were obtained, and the mean values calculated at 1 week and 3 months were compared using the paired t-test. Results: A significant difference in the mean scores was observed for the perceived positive outcomes (p = 0.018) but not for the perceived negative outcomes at 1 week and 3 months. Most patients agreed or strongly agreed with the statements concerning the perceived positive outcomes and disagreed or strongly disagreed with those concerning the perceived negative outcomes after 3 months. Conclusion: Most patients were satisfied with their mandibular distal extension PRDPs in terms of the perceived positive outcomes and disagreed with the statements concerning the perceived negative outcomes. The questionnaire was deemed appropriate for measuring the patients’ perceptions about the possible outcomes of using mandibular distal extension PRDPs
{"title":"Evaluation of Perceived Possible Outcomes in Patients Treated with Mandibular Distal Extension Partial Removable Dental Prostheses","authors":"MOHAMMED SHAMMAS, O. Wali, R. Alamoudi, Reem Alharbi, M. Nasser","doi":"10.14693/jdi.v29i1.1303","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1303","url":null,"abstract":"Objectives: This study evaluated the perceived positive and negative general and oral health outcomes of patients after using mandibular distal extension partial removable dental prostheses (PRDPs) and assessed the effect of recall procedures on the treatment outcomes. Methods: A questionnaire comprising 20 items, pertaining to perceived positive and negative outcomes related to the patients’ perception scores after using mandibular distal extension PRDPs, was designed. The patients were recalled 1 week and 3 months after the insertion of the mandibular distal extension PRDPs. The perception scores were obtained, and the mean values calculated at 1 week and 3 months were compared using the paired t-test. Results: A significant difference in the mean scores was observed for the perceived positive outcomes (p = 0.018) but not for the perceived negative outcomes at 1 week and 3 months. Most patients agreed or strongly agreed with the statements concerning the perceived positive outcomes and disagreed or strongly disagreed with those concerning the perceived negative outcomes after 3 months. Conclusion: Most patients were satisfied with their mandibular distal extension PRDPs in terms of the perceived positive outcomes and disagreed with the statements concerning the perceived negative outcomes. The questionnaire was deemed appropriate for measuring the patients’ perceptions about the possible outcomes of using mandibular distal extension PRDPs","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43209635","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}
Humeyra Tercanli Alkis, B. Yağmur, M. Parlak, H. Karayılmaz
Objective: The aim of this study is to evaluate the cortical and trabecular mandibular bone morphology of children and adolescents with type 1 diabetes mellitus (DM) and control group utilizing fractal dimension analysis (FDA) and different panoramic radiomorphometric indices through digital panoramic radiographic images (DPRIs). Methods: The study included 57 patients for the type 1 DM group (25 male and 32 female with a mean age of 11.5±2.4 years) and 57 patients for the control group (28 male and 29 female with a mean age of 10.5±2.1 years). The type 1 DM group was divided into the well-controlled, moderately-controlled, and poorly-controlled subgroups based on HbA1c. Mandibular cortical width (MCW) (according to Lengerton et al.) and panoramic mandibular index (PMI) (according to Benson et al.) were measured, mandibular cortical index (MCI) (according to Klemetti et al) and simple visual estimation (SVE) (according to Lee et al.) were evaluated, and FDA was conducted according to White and Rudolph, resulting in three areas of interest (IAs) being obtained in all of the DPRIs. Results: There was no significant difference between type 1 DM group and control according to the mean MCW, mean PMI measurements, MCI and SVE. The mean FD values were not significantly different between type 1 DM group and the control and between type 1 DM subgroups and control. Conclusion: This study revealed no cortical and trabecular bone changes in mandibula in children and adolescents with type 1 DM compared to the control group. In addition, metabolic control states of DM did not affect the bone structure.
{"title":"Mandibular Bone Changes in Children and Adolescents with Type 1 Diabetes Mellitus in Different Metabolic Control States","authors":"Humeyra Tercanli Alkis, B. Yağmur, M. Parlak, H. Karayılmaz","doi":"10.14693/jdi.v29i1.1331","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1331","url":null,"abstract":"Objective: The aim of this study is to evaluate the cortical and trabecular mandibular bone morphology of children and adolescents with type 1 diabetes mellitus (DM) and control group utilizing fractal dimension analysis (FDA) and different panoramic radiomorphometric indices through digital panoramic radiographic images (DPRIs). Methods: The study included 57 patients for the type 1 DM group (25 male and 32 female with a mean age of 11.5±2.4 years) and 57 patients for the control group (28 male and 29 female with a mean age of 10.5±2.1 years). The type 1 DM group was divided into the well-controlled, moderately-controlled, and poorly-controlled subgroups based on HbA1c. Mandibular cortical width (MCW) (according to Lengerton et al.) and panoramic mandibular index (PMI) (according to Benson et al.) were measured, mandibular cortical index (MCI) (according to Klemetti et al) and simple visual estimation (SVE) (according to Lee et al.) were evaluated, and FDA was conducted according to White and Rudolph, resulting in three areas of interest (IAs) being obtained in all of the DPRIs. Results: There was no significant difference between type 1 DM group and control according to the mean MCW, mean PMI measurements, MCI and SVE. The mean FD values were not significantly different between type 1 DM group and the control and between type 1 DM subgroups and control. Conclusion: This study revealed no cortical and trabecular bone changes in mandibula in children and adolescents with type 1 DM compared to the control group. In addition, metabolic control states of DM did not affect the bone structure.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43636553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Shahbaz, Huma Iftekhar, Sharique Alam, Zehra Shavez
Mandibular molar is usually two rooted with one mesial and one distal root. Additional roots are rare which requires accurate diagnosis and a methodical and scrupulous endodontic treatment. Objective: This paper aims to report the endodontic management of an unusual case of a mandibular permanent first molar with four roots (two mesial & two distal) and provide a clinical guideline to detect and manage these variant cases. Case report: A 15-year-old boy reported with a deep carious lesion in the lower left first molar (#36). The apical root contour of #36 on an intraoral periapical radiograph taken in different angulations suggested the presence of extra roots. A Spiral Computed Tomographic scan with multiplanar three-dimensional reconstructed images confirmed a fourrooted mandibular molar. Endodontic treatment of #36 was planned based on a diagnosis of pulpal necrosis with symptomatic apical periodontitis. The pulp chamber floor was assiduously explored along the developmental root fusion line (DRFL) to guide a trapezoidal access cavity and expose two mesial and two distal orifices. Conclusion: The present case report highlights the successful endodontic treatment of an atypical four rooted mandibular first molar by following a systematic approach from diagnosis to its clinical management.
{"title":"Endodontic Management of Mandibular First Molar with Four Roots - A Rare Case Report with Clinical Management Guidelines","authors":"S. Shahbaz, Huma Iftekhar, Sharique Alam, Zehra Shavez","doi":"10.14693/jdi.v29i1.1160","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1160","url":null,"abstract":"Mandibular molar is usually two rooted with one mesial and one distal root. Additional roots are rare which requires accurate diagnosis and a methodical and scrupulous endodontic treatment. Objective: This paper aims to report the endodontic management of an unusual case of a mandibular permanent first molar with four roots (two mesial & two distal) and provide a clinical guideline to detect and manage these variant cases. Case report: A 15-year-old boy reported with a deep carious lesion in the lower left first molar (#36). The apical root contour of #36 on an intraoral periapical radiograph taken in different angulations suggested the presence of extra roots. A Spiral Computed Tomographic scan with multiplanar three-dimensional reconstructed images confirmed a fourrooted mandibular molar. Endodontic treatment of #36 was planned based on a diagnosis of pulpal necrosis with symptomatic apical periodontitis. The pulp chamber floor was assiduously explored along the developmental root fusion line (DRFL) to guide a trapezoidal access cavity and expose two mesial and two distal orifices. Conclusion: The present case report highlights the successful endodontic treatment of an atypical four rooted mandibular first molar by following a systematic approach from diagnosis to its clinical management.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45789939","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 success of orthodontic treatment depends upon the accurate assessment of mesiodistal widths of unerupted canines and premolars in mixed dentition stage. There are several methods available for mixed dentition analysis with dubious reliability in our population. Objective: To statistically develop new prediction equations for Pakistani subjects to predict the widths of unerupted upper canines and premolars (U345) and lower canine and premolars (L345) using mesiodistal widths of lower incisors (I1I2) and lower incisors and first molars (I1I2M1) and compare their performance with previously established methods of Moyers and Tanaka-Johnston. Methods: Study was conducted using the data from the dental casts of 200 Pakistani subjects with permanent teeth. Linear regression analysis was used to develop general and gender specific equations for estimation of U345 and L345 using the combined mesiodistal width I1I2 and I1I2M1. The actual and estimated sum of of U345 and L345 as determined by Moyers and Tanaka-Johnston and those from prediction equations based on I1I2 and I1I2M1 were compared using the paired sample t-test. Results: There were signficant differences in the actual mesiodistal widths of U345 and L345 and those calculated using Tanaka-Johnston and Moyers methods. Newly developed equations based on I1I2 and I1I2M1 performed better than the Moyers and Tanaka-Johnston methods in both the arches. Conclusion: Moyers and Tanaka-Johnston analyses generally overestimated U345 and L345 dimensions. The newly developed prediction equations based on I1I2 and I1I2M1 performed better for the prediction of mesiodistal widths of U345 and L345.
{"title":"A Comparison of Four Different Methods of Prediction of Mesiodistal Widths of Unerupted Permanent Canines and Premolars","authors":"Waqar Jeelani, Washma Asad, Maheen Ahmed","doi":"10.14693/jdi.v29i1.1265","DOIUrl":"https://doi.org/10.14693/jdi.v29i1.1265","url":null,"abstract":"The success of orthodontic treatment depends upon the accurate assessment of mesiodistal widths of unerupted canines and premolars in mixed dentition stage. There are several methods available for mixed dentition analysis with dubious reliability in our population. Objective: To statistically develop new prediction equations for Pakistani subjects to predict the widths of unerupted upper canines and premolars (U345) and lower canine and premolars (L345) using mesiodistal widths of lower incisors (I1I2) and lower incisors and first molars (I1I2M1) and compare their performance with previously established methods of Moyers and Tanaka-Johnston. Methods: Study was conducted using the data from the dental casts of 200 Pakistani subjects with permanent teeth. Linear regression analysis was used to develop general and gender specific equations for estimation of U345 and L345 using the combined mesiodistal width I1I2 and I1I2M1. The actual and estimated sum of of U345 and L345 as determined by Moyers and Tanaka-Johnston and those from prediction equations based on I1I2 and I1I2M1 were compared using the paired sample t-test. Results: There were signficant differences in the actual mesiodistal widths of U345 and L345 and those calculated using Tanaka-Johnston and Moyers methods. Newly developed equations based on I1I2 and I1I2M1 performed better than the Moyers and Tanaka-Johnston methods in both the arches. Conclusion: Moyers and Tanaka-Johnston analyses generally overestimated U345 and L345 dimensions. The newly developed prediction equations based on I1I2 and I1I2M1 performed better for the prediction of mesiodistal widths of U345 and L345.","PeriodicalId":53873,"journal":{"name":"Journal of Dentistry Indonesia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44068893","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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