Journal of forensic dental sciences最新文献_第8页

Prevalence of congenitally missing second premolar teeth in the Dravidian population. 德拉威人先天性第二前磨牙缺失的患病率。

Journal of forensic dental sciences Pub Date : 2019-05-01 Epub Date: 2020-01-24 DOI: 10.4103/jfo.jfds_32_19

Lakshimi Lakshmanan, Deepa Gurunathan

{"title":"Prevalence of congenitally missing second premolar teeth in the Dravidian population.","authors":"Lakshimi Lakshmanan, Deepa Gurunathan","doi":"10.4103/jfo.jfds_32_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_32_19","url":null,"abstract":"Introduction: In the practice of dentistry, one of the most common dental anomalies encountered is the congenitally missing teeth (CMT) with dierent prevalence in each region. CMT are those that fail to erupt in the oral cavity and remain invisible in radiographs. The aim of this study was to evaluate the prevalence of congenitally missing second premolar teeth in the Dravidian population that can be used in forensic research.Materials and methods: In this retrospective study, a total of 4600 panoramic radiographs of Dravidian children (2580 girls and 2020 boys) with an age group of 9-17 years were viewed for congenitally missing second premolar teeth.Results: The total number of congenitally missing second premolars was 80 (1.73%). The prevalence was seen more in girls (60%) than boys (40%). Mandibular second premolar was the most commonly missing teeth. Bilateral agenesis (66%) was more prevalent than the unilateral agenesis (34%).Conclusion: The prevalence of congenitally missing second premolar teeth in the Dravidian population was 1.02%. The study of CMT is important in performing dental treatments and also in the field of forensic research as it can provide knowledge on the diversities among populations.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"11 2","pages":"103-106"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/00/f1/JFDS-11-103.PMC7006304.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37664711","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}

引用次数: 4

Role of dental pulp in age estimation: A quantitative and morphometric study. 牙髓在年龄估计中的作用:一项定量和形态计量学研究。

Journal of forensic dental sciences Pub Date : 2019-05-01 Epub Date: 2020-01-24 DOI: 10.4103/jfo.jfds_57_19

Anjum Baker, K Karpagaselvi, Jayalakshmi Kumaraswamy, M R Ranjini, Jabeen Gowher

{"title":"Role of dental pulp in age estimation: A quantitative and morphometric study.","authors":"Anjum Baker, K Karpagaselvi, Jayalakshmi Kumaraswamy, M R Ranjini, Jabeen Gowher","doi":"10.4103/jfo.jfds_57_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_57_19","url":null,"abstract":"Context: This study was designed to characterize the role of the dental pulp (DP) in age estimation.Aim: The analysis of age-related quantifiable changes in DP components such as odontoblasts, collagen fibers, and blood vessels.Subjects and methods: One hundred and twenty extracted teeth from six age groups (20-30 years, 31-40 years, 41-50 years, 51-60 years, 61-70 years, and 71-80 years) were subjected to decalcification and routine histopathological processing followed by Hematoxylin and Eosin and Picrosirius Red staining. Evaluation of the number of odontoblasts, mean vessel area (MVA), mean vessel diameter (MVD), and collagen fiber thickness were done.Statistical analysis used: ANOVA test, Fisher's test, and Regression Analysis.Results: Reduction in the number of odontoblasts/mm of pulp-dentinal border, MVA, and MVD were seen with advancing age. Rise in collagen fiber thickness was noted with increasing age. All parameters showed strongly statistically significant differences between age groups with P < 0.001 (ANOVA test).Conclusions: Regression formulae derived for age estimation based on data collected demonstrated linear correlation with age. Collagen fiber thickness had the highest accuracy followed by odontoblast numbers and MVA. MVD was the least accurate among the factors considered. However, the highest accuracy of 90.9% was seen when all parameters were incorporated together in a single equation.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"11 2","pages":"95-102"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/df/e0/JFDS-11-95.PMC7006301.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37664710","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}

引用次数: 5

Qualitative assessment of the dental groove pattern and its uniqueness for forensic identification 牙槽模式的定性评估及其法医鉴定的独特性

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_73_19

Jyotirmoy Roy, M. Rohith, Debesh Nilendu, A. Johnson

{"title":"Qualitative assessment of the dental groove pattern and its uniqueness for forensic identification","authors":"Jyotirmoy Roy, M. Rohith, Debesh Nilendu, A. Johnson","doi":"10.4103/jfo.jfds_73_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_73_19","url":null,"abstract":"Introduction: Teeth are invaluable in both the living and the deceased for forensic identification and profiling purposes. The occlusal surface patterns in the molars of an individual depend on both intrinsic and extrinsic factors. The individualistic nature of the groove pattern can be used to determine the identity of an individual by the process of comparative identification. Aim and Objective: The objective of this study is to determine the uniqueness of the groove pattern among individuals by the means of digital analysis. Materials and Methods: An experimental study was conducted on 80 dental casts where the occlusal groove patterns of 1st and 2nd molars from each cast were traced digitally using image analysis software GIMP (v 2.10.6). The traced patterns were then examined to determine their uniqueness. Results: The most common groove patterns for the maxillary 1st and 2nd molars were found to resemble “Branched H” and “H”, respectively. “Y” pattern was observed to be the most common in mandibular 1st molar, whereas mandibular 2nd molar most commonly exhibited “+” pattern. No two groove patterns were similar in the analysis. Conclusion: Digital method of analysis is preferable over conventional manual methods as it is noninvasive and precise. The individualistic nature of occlusal groove patterns may play an important role in comparative forensic identification.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"1 1","pages":"42 - 47"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88946263","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}

引用次数: 3

Identification through dental age estimation in skeletal remains of a child 通过对儿童骨骼遗骸的牙齿年龄估计进行鉴定

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_79_18

N. Sharma, S. Dhillon

引用次数: 2

Digitization in forensic odontology: A paradigm shift in forensic investigations 法医牙科学的数字化:法医调查的范式转变

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_55_19

Ravleen Nagi, K. Aravinda, N. Rakesh, Supreet Jain, Navneet Kaur, A. Mann

{"title":"Digitization in forensic odontology: A paradigm shift in forensic investigations","authors":"Ravleen Nagi, K. Aravinda, N. Rakesh, Supreet Jain, Navneet Kaur, A. Mann","doi":"10.4103/jfo.jfds_55_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_55_19","url":null,"abstract":"Forensic dentistry deals with proper handling, examination, and evaluation of dental records, which are then presented in the interest of law for justice. It plays a major role in identification of deceased individuals who cannot be identified visually or by other means after mass disasters or crimes. Digital forensics has revolutionized the traditional forensic investigations in terms of acquisition, analysis, and reporting of forensic evidence and its application is becoming common in the mass disasters, earthquakes, and terrorism. Sophistication of software and advent of digital technologies such as computers, computer-aided design computer-aided manufacturing systems, digital records, facial reconstruction, touch-free autopsy, and virtopsy has resulted in quick identification and extraction of a large amount of data with reduced sampling bias. This paper focuses on the evolution of forensic dentistry for effective detection and resolution of medico-legal matters and also highlights the use of comparison microscopes and new robotic tools by few forensic laboratories for automation of deoxyribonucleic acid sampling processes for human identification.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"23 1","pages":"5 - 10"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88548103","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}

引用次数: 13

Awareness of forensic odontology among undergraduate, graduate, and postgraduate dental students in Riyadh, Saudi Arabia: A knowledge-, attitude-, and practice-based study 沙特阿拉伯利雅得的本科生、研究生和研究生对法医牙科学的认识:一项基于知识、态度和实践的研究

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_52_19

N. S. Abdul, Lamya Alhazani, Reem Alruwail, Shrouq Aldres, Shahd Asil

{"title":"Awareness of forensic odontology among undergraduate, graduate, and postgraduate dental students in Riyadh, Saudi Arabia: A knowledge-, attitude-, and practice-based study","authors":"N. S. Abdul, Lamya Alhazani, Reem Alruwail, Shrouq Aldres, Shahd Asil","doi":"10.4103/jfo.jfds_52_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_52_19","url":null,"abstract":"Aims and Objectives: The aim of the study is to assess the knowledge, attitude, and practice (KAP) of forensic odontology among undergraduate, graduate, and postgraduate dental students at Riyadh Elm University, Riyadh, Saudi Arabia. Material and Methods: This is a cross-sectional, institution-based survey study conducted among 400 dental students, which included 220 undergraduates, eighty interns, sixty graduates, and forty postgraduates aged, between 18 and 28 years. A self-administered structured questionnaire written in English and Arabic language was given to all willing student participants. Questionnaire included KAP criteria based along with demographic data. Statistical data were analyzed using Chi-square test. Results: Seventy-five percent of postgraduates, 42% of graduates, and 40.9% of the undergraduates were aware that teeth serve as a source of DNA. Ninety-five percent of the participants were aware that forensic dentistry helps to investigate criminals and dead persons. About 72% of the undergraduates and 77.5% of postgraduates were aware that forensic odontology helps in identification of deceased person's age and gender in mass disasters using dental records. About 62.73% of the undergraduates were unaware of the job opportunities in forensic dentistry in Saudi Arabia and 97.5% of the participants revealed that forensic dentistry was not included as part of the curriculum in undergraduate and postgraduate dental courses. About 93.2% of the undergraduate and 83.4% of graduate dental students agreed that they lack knowledge about forensic dentistry. Conclusion: Our study revealed inadequate knowledge, poor attitude, and lack of practice of forensic odontology among undergraduate and graduate dental students than the postgraduates.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"138 1","pages":"35 - 41"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82854621","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}

引用次数: 13

Dental age estimation using radiographic assessment of third molar eruption among 10-20-year-old Ugandan population. 10-20岁乌干达人群第三磨牙萌出的x线评估牙龄估计。

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_34_19

Annet Mutebi Kutesa, Charles Mugisha Rwenyonyi, Catherine Lutalo Mwesigwa, Mbabali Muhammad, Grace Ssanyu Nabaggala, Joan Kalyango

{"title":"Dental age estimation using radiographic assessment of third molar eruption among 10-20-year-old Ugandan population.","authors":"Annet Mutebi Kutesa, Charles Mugisha Rwenyonyi, Catherine Lutalo Mwesigwa, Mbabali Muhammad, Grace Ssanyu Nabaggala, Joan Kalyango","doi":"10.4103/jfo.jfds_34_19","DOIUrl":"10.4103/jfo.jfds_34_19","url":null,"abstract":"Aim: This study aimed at establishing the age for third molar eruption among Ugandans aged 10-20 years.Materials and methods: This was a cross-sectional study comprising 471 male and 541 female patients attending Mulago Dental Clinic. Patients' orthopantomographs were assessed for third molar eruption as described by Olze et al. Age was summarized using means/SD. Jaw and sex differences were assessed using Student's t-test.Results: Complete eruption (Stage D) ranged between 13 and 20 years. The mean age at complete eruption for girls and boys was 17.5-18 years and 18.2-18.6 years, respectively. Mean age was statistically significantly (P < 0.05) lower among girls compared to boys for all third molar teeth (#18, #28, #38, and #48). The difference in mean eruption times between girls and boys was -0.62 (95% confidence interval: 0.2-1.0, P = 0.006). At 18 years, 40% or 41% maxillary and 52% or 53% mandibular molars were completely erupted. There were statistically significant differences in eruption between the sexes and jaws for all teeth (P < 0.05).Conclusions: Given the fact that the percentage of erupted third molars by age 18 was found to be <50% on an average in this Ugandan population, we should reconsider the use of third molar eruption as a definitive tool for age estimation in this population.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"2007 1","pages":"16-21"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6822306/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82567975","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}

引用次数: 0

Socioeconomic and nutritional factors associated with age of eruption of third molar tooth among Ugandan adolescents 社会经济和营养因素与乌干达青少年第三磨牙萌出年龄相关

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_37_19

A. Kutesa, Barbara Ndagire, Grace Nabaggala, C. Mwesigwa, J. Kalyango, C. Rwenyonyi

{"title":"Socioeconomic and nutritional factors associated with age of eruption of third molar tooth among Ugandan adolescents","authors":"A. Kutesa, Barbara Ndagire, Grace Nabaggala, C. Mwesigwa, J. Kalyango, C. Rwenyonyi","doi":"10.4103/jfo.jfds_37_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_37_19","url":null,"abstract":"This study aimed to establish the influence of socioeconomic and nutritional factors on the age of eruption of the mandibular third molar among Ugandans aged 10–20 years. Materials and Methods: This was a cross-sectional study carried out in a dental clinic of Mulago Hospital between January and December 2017. The background information was obtained from the participants using a questionnaire in the form of an oral interview. The anthropometric measurements were obtained using a tape measure and a weighing scale, while dental radiographs were used to determine the eruption stages of the mandibular third molar. Statistical Analysis: The data were analyzed using STATA 13 and summarized using descriptive statistics and multivariate analyses. Statistical significance was inferred at P < 0.05. Results: Participants in the overweight body mass index category were statistically significantly associated with the age of the mandibular third molar eruption (P < 0.05) compared to their normal counterparts. There was no statistically significant association between socioeconomic status and age of eruption of third molar teeth (P > 0.05). Age of eruption was statistically significantly higher among males than females (P > 0.05). Conclusion: The findings of the present study reveal that overweight influences early eruption of the mandibular third molar tooth, although there is no trend between socioeconomic status and the age of eruption of the mandibular third molar.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"28 1","pages":"22 - 27"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88729539","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}

引用次数: 7

Ascertaining of age by Raman spectroscopic analysis of apical dentin – A forensic study 用拉曼光谱分析确定牙本质的年龄——一项法医研究

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_85_18

S. Jayachandran, P. Aruna, M. Preethi, M. Yuvaraj

{"title":"Ascertaining of age by Raman spectroscopic analysis of apical dentin – A forensic study","authors":"S. Jayachandran, P. Aruna, M. Preethi, M. Yuvaraj","doi":"10.4103/jfo.jfds_85_18","DOIUrl":"https://doi.org/10.4103/jfo.jfds_85_18","url":null,"abstract":"Context: Age estimation in forensics employ various methods of which Raman microspectroscopy provides a noninvasive method by assessing various parts of dentin. Aim and Objectives: The aim of this study is to ascertain the age of carious tooth using Raman spectra of apical dentin and to correlate the similarity of the spectra in a defined age group. Settings and Design: Teeth of known age from Indian population (n=48) and morphology (incisors, canine, premolars, molars) indicated for extraction due to caries were allocated into four groups, i.e., Group A (21-30 years), Group B (31-40 years), Group C (41-50 years) and Group D (51-60 years). Materials and Methods: Teeth were sectioned and the apical 2 mm of dentin was examined by a Raman microspectroscopy machine for spectra from 400 cm−1 to 1500 cm−1, and peak at phosphate group at 963 cm−1 was taken for statistical analysis. Statistical Analysis Used: The data were analyzed using IBM SPSS version 20.0. Results: Pearson's correlation to test the strength of linear relation of the spectra of the teeth within an age group showed an “r” value approaching 1. One-way ANOVA to test the difference between means of spectrum values obtained between the four age groups was statistically significant at P < 0.05. Conclusion: Raman spectroscopic analysis of apical dentin of teeth affected by caries can also be used to estimate the age and the Raman spectra obtained differed for different age groups, and the same can be advocated as an alternative method to ascertain age in forensic dentistry.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"112 1","pages":"11 - 15"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87614597","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}

引用次数: 5

Dental Cingulum and Position of Fixed Orthodontic Appliance as Source of Morphological and Therapeutic Identifiers: An Unusual Case Report 固定正畸器的带骨和位置作为形态学和治疗鉴别的来源:一个不寻常的病例报告

Journal of forensic dental sciences Pub Date : 2019-01-01 DOI: 10.4103/jfo.jfds_28_19

F. Picoli, Mayara Barbosa Viandelli Mundim-Picoli, L. G. Rodrigues, M. A. G. Silva, A. Franco, R. F. Silva

{"title":"Dental Cingulum and Position of Fixed Orthodontic Appliance as Source of Morphological and Therapeutic Identifiers: An Unusual Case Report","authors":"F. Picoli, Mayara Barbosa Viandelli Mundim-Picoli, L. G. Rodrigues, M. A. G. Silva, A. Franco, R. F. Silva","doi":"10.4103/jfo.jfds_28_19","DOIUrl":"https://doi.org/10.4103/jfo.jfds_28_19","url":null,"abstract":"Orthodontic records, such as photographs, radiographs, and dental casts, provide information useful for identification purposes because it may reveal important morphological, therapeutic, and pathological dental identifiers. Among these identifiers, the type and position of orthodontic appliances figure as distinctive tools for human identification. In this context, the present study aims to report an uncommon case of identification of a putrefied body, found near to a forest region in Brazil. The postmortem (PM) examination showed that the victim had part of a fixed orthodontic appliance installed in the maxillary and mandibular dental arches. To identify the body, relatives of the potential victim presented orthodontic examinations containing panoramic radiography and photographs of the orthodontic treatment. The body was identified based on the analysis of the radiographs and photographs that confirmed the presence of the orthodontic appliances observed PM. More specifically, the identification was supported by the analysis of bracket bonding position of the maxillary and mandibular incisors and the presence of distinctive morphological traits of the canines and incisors, as well dental roots observed radiographically. The present case highlights the importance of orthodontic records as a source of morphological dental identifiers for cases in which only unrestored teeth are available.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"22 1","pages":"51 - 55"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81522903","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}

引用次数: 5