Journal of forensic dental sciences最新文献_第5页

Effect of Dentures on Palatal Rugae: An Investigation 义齿对腭襞影响的研究

Journal of forensic dental sciences Pub Date : 2021-05-07 DOI: 10.18311/jfds/12/1/2020.5

R. Akula, H. Srinath, S. Maroli, S. Yarlagadda, D. Uday Kiran Tej, Tishia Srinath

{"title":"Effect of Dentures on Palatal Rugae: An Investigation","authors":"R. Akula, H. Srinath, S. Maroli, S. Yarlagadda, D. Uday Kiran Tej, Tishia Srinath","doi":"10.18311/jfds/12/1/2020.5","DOIUrl":"https://doi.org/10.18311/jfds/12/1/2020.5","url":null,"abstract":"Aims: The aim of this study is to evaluate the rugae pattern changes (rugae number, length, shape, direction, and unification) in completely edentulous patients treated with complete denture. Materials and Methods: A total of 100 subjects were selected for the study. The experimental group comprised 60 participants (30 males and 30 females) who had undergone complete denture treatment and the control group comprised 40 participants (20 males and 20 females) who were dentulous and patients with fixed partial denture treatment. Mucostatic maxillary alginate impressions were made for all the subjects, and casts were poured with gypsum. Patients were recalled at the regular intervals of 1, 6, and 18 months after the treatment. During those recalls, the same impression procedure was made, and all the palatal rugaes were observed for number, length, shape, direction, and unifications under magnifying lens. Changes in the palatal rugae were statistically analyzed using the unpaired t‑test. Results: A gradual decrease in the length was observed in primary, secondary, and fragmentary rugae for the experimental group after denture wearing (Group 1). Statistically, the change was significant (P < 0.001) in primary rugae only. A slight change in rugae shape was also observed in the experimental group after 18 months period of denture wearing which is statistically insignificant (P > 0.05). Conclusions: Significant decrease in primary rugae length in complete denture wearers was due to sustained mechanical stress posed by the dentures on palatal rugae. The other parameters such as rugae number, direction, and unification remained constant throughout the study. Palatal rugae analysis may not be helpful for human identification in complete denture wearers. Nevertheless, palatal rugae may serve as an adjuvant to other techniques such as DNA analysis and finger prints in forensic investigations.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73930791","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: 0

Detection of Dried Saliva on Human Skin using an Ultra Violet Spectrometer: A Technical Report 用紫外分光计检测人体皮肤上的干唾液:技术报告

Journal of forensic dental sciences Pub Date : 2021-05-07 DOI: 10.18311/jfds/12/1/2020.6

S. Malik

引用次数: 1

Sex Determination and Sex Differentiation 性别决定与性别分化

Journal of forensic dental sciences Pub Date : 2021-04-22 DOI: 10.18311/jfds/12/1/2020.12

G. Protyusha, B. Sivapathasundharam

引用次数: 0

Attrition – A Criteria in Estimating the Age 磨损-估计年龄的一个标准

Journal of forensic dental sciences Pub Date : 2021-03-31 DOI: 10.18311/jfds/13/1/2021.699

A. Prakash, A. Reddy, M. Rajinikanth, G. Sreenath, S. Hussain, D. P. S. Harsha

{"title":"Attrition – A Criteria in Estimating the Age","authors":"A. Prakash, A. Reddy, M. Rajinikanth, G. Sreenath, S. Hussain, D. P. S. Harsha","doi":"10.18311/jfds/13/1/2021.699","DOIUrl":"https://doi.org/10.18311/jfds/13/1/2021.699","url":null,"abstract":"Context: With respect to the recognition of an individual in forensic circumstances age assessment is an essential aspect. Teeth are considered to be least destructible part of the body under most conditions occurring in the nature like mass disasters. As the age advances, there will be physiological wearing away of the tooth due to tooth - tooth contacts, as in case of mastication. By knowing the level of attrition, age of an individual can be estimated. Microscopic investigation may not be achievable in certain instances and assessment of age relies on the sole examination of tooth by attrition. Aims: The aim of the research was meant to evaluate the age of individuals using Average Stage of Attrition (ASA) and Gustafson’s method and comparing efficacy of both the methods. Methods and Material: The study sample constituted 60 participants. Dental caries, restored crowns and patients with bruxism were excluded. The patients examined were in the age group of 35-60 years. Scores were evaluated by using Gustafson’s method and Average stage of attrition method. Statistical Analysis used: Regression Analysis. Results: The average stages of attrition and Gustafson’s scoring criteria were evaluated by conferring with the graduation standards. The data was collected and regression analyses were carried out for both the methods. By regression analysis, four regression equations for each method were obtained. Evaluation of attrition level and its accuracy in estimating the age by ASA method is more reliable than Gustafson’s attrition scoring.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76699343","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: 0

Revealing Stature and Facial Proportions from Teeth: An Adjunct to Forensic Science 从牙齿揭示身材和面部比例:法医科学的辅助

Journal of forensic dental sciences Pub Date : 2021-03-29 DOI: 10.18311/jfds/13/1/2021.575

K. Revathy, V. Beena, Latha Mary Cherian, A. Rao, J. Jose, M. V. Dilshad Banu

{"title":"Revealing Stature and Facial Proportions from Teeth: An Adjunct to Forensic Science","authors":"K. Revathy, V. Beena, Latha Mary Cherian, A. Rao, J. Jose, M. V. Dilshad Banu","doi":"10.18311/jfds/13/1/2021.575","DOIUrl":"https://doi.org/10.18311/jfds/13/1/2021.575","url":null,"abstract":"Background: Teeth and skull remains are often some of the evidences available that can be used reliably for identification in medicolegal cases. Determination of Stature and facial proportions from teeth dimensions have not been utilised fully in the field of forensics. This study was designed with the aim to estimate stature as well as facial proportions from teeth and head measurements. Objectives: To correlate height of an individual to combined mesiodistal width (CMDW) of maxillary anterior teeth and head circumference and to correlate the facial height and facial width to the cervicoincisal and mesiodistal dimensions of maxillary central incisor. Methodology: This was a descriptive cross-sectional study conducted among 1000 patients of age group 18–30 years of Kerala origin by birth and domicile who fulfilled the inclusion and exclusion criteria. Study variables included length and width of the face, combined mesiodistal (MD) width of maxillary anterior teeth, mesiodistal and cervicoincisal dimension of maxillary central incisor, circumference of the head and height of the individual. The results were statistically analysed using Karl Pearson’s correlation coefficient. Results: Correlation between height and head circumference, height and combined mesiodistal width of maxillary anterior teeth, width of face to mesio-distal width of maxillary central incisor showed significant correlation with p value <0.05, but the correlation coefficients were very weak. But while correlating facial length to cervicoincisal length of maxillary central incisor the values obtained were not statistically significant.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"70 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72413953","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: 0

A Comparative Analysis of Palatal Ruga Patterns among Gorkha and North-East Indian Population 廓尔喀与东北印度人口腭纹形态的比较分析

Journal of forensic dental sciences Pub Date : 2021-03-29 DOI: 10.18311/jfds/13/1/2021.563

A. Choube, A. Gopi, M. Astekar, Anukool Choube

{"title":"A Comparative Analysis of Palatal Ruga Patterns among Gorkha and North-East Indian Population","authors":"A. Choube, A. Gopi, M. Astekar, Anukool Choube","doi":"10.18311/jfds/13/1/2021.563","DOIUrl":"https://doi.org/10.18311/jfds/13/1/2021.563","url":null,"abstract":"Background: Palatal rugae are resistant to changes due to trauma or aging. Ruga patterns, being unique to each individual, are valuable for personal identification. The study aims to assess the applicability of palatoscopy for differentiation amongst North-east Indians and Gorkhas in India. Materials and Methods: Sample comprised a total of 100 subjects divided into two groups of 50 each for Gorkha (Group I) and North-east Indian (Group II) population. Alginate impressions were made and models were obtained. Data was recorded after tracing palatal rugae on models. Analysis of rugae for number, side- wise distribution, shape, length, and direction was undertaken. Statistical analysis was carried out and probability value was obtained. Results: After analyzing the rugae patterns in both the groups, total number of rugae was more in Group I as compared to Group II. Total number of rugae on right and left sides each was more in Group I than in Group II. The curved pattern was found to be predominant in both groups. Divergent rugae were predominant in both groups. Maximum rugae were primary and were forwardly directed. Statistical analysis revealed no significant differences between groups for parameters assessed. Conclusion: Palatoscopy independently was not able to differentiate between individuals of the two test populations. Palatoscopy may assist in the identification process in conjunction with cheiloscopy and intraoral photography. Palatoscopy, on the account of its stability and easy reproducibility, should be encouraged among dentists for maintenance of patient records for forensic identification.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"61 36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87236802","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: 0

Digitilized Radiographic Analysis of Coronal Pulp for Age Estimation in Adults using Tooth Coronal Index Method – A Pilot Study 用冠状指数法估计成人冠状牙髓年龄的数字化放射学分析-一项初步研究

Journal of forensic dental sciences Pub Date : 2021-03-29 DOI: 10.18311/jfds/13/1/2021.627

Sailaja Joparti, Madala Jaya Kiran, G. Rao, Y. Sivaranjani, Moni Thakur, Katakam Pradeepthi

{"title":"Digitilized Radiographic Analysis of Coronal Pulp for Age Estimation in Adults using Tooth Coronal Index Method – A Pilot Study","authors":"Sailaja Joparti, Madala Jaya Kiran, G. Rao, Y. Sivaranjani, Moni Thakur, Katakam Pradeepthi","doi":"10.18311/jfds/13/1/2021.627","DOIUrl":"https://doi.org/10.18311/jfds/13/1/2021.627","url":null,"abstract":"Background: Teeth have become a valuable index to estimate age of an individual in forensic odontology. Although various methods have been reported in forensic literature for age estimation, radiographic methods are simple and require less expertise. Digitalization of panoramic radiographs and intraoral periapical radiographs helps in obtaining the more precise images and accurate measurements. Secondary dentin continuously gets deposited on pulpal surface throughout the life thus reducing the size of the pulp cavity. The Tooth Coronal Index (TCI) method is the indirect assessment of secondary dentin deposition for age estimation. Aim: This study aims to estimate the Tooth Coronal Index of mandibular first molar and its correlation with chronological age to derive a regression equation. Materials and Methods: A total of 50 adults above 20 years of age were selected from the outpatient department of our college. Digital intraoral periapical radiographs were taken by using Radiovisiography (RVG) for mandibular first molar. The crown height and Coronal Pulp Cavity Height were measured and then TCI was calculated. Further the data were subjected to statistical analysis. Results: Statistically significant difference was observed between age and TCI (p<0.05*) and statistically insignificant difference observed between gender and TCI (p>0.05). Conclusion: The Tooth Coronal Index provides more accurate estimation of age and it is a simple, non invasive and cost-effective method that could be easily applied for both living and dead individuals without any highly specialized equipment.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78366525","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: 0

Histomorphologic and Gravimetric Changes of Teeth Exposed to High Temperature - In vitro Study 高温下牙齿组织形态和重量变化的体外研究

Journal of forensic dental sciences Pub Date : 2021-03-29 DOI: 10.18311/jfds/13/1/2021.555

Nisha Sam, T. Sivakumar, A. Joseph, V. B. R., V. Mony

{"title":"Histomorphologic and Gravimetric Changes of Teeth Exposed to High Temperature - In vitro Study","authors":"Nisha Sam, T. Sivakumar, A. Joseph, V. B. R., V. Mony","doi":"10.18311/jfds/13/1/2021.555","DOIUrl":"https://doi.org/10.18311/jfds/13/1/2021.555","url":null,"abstract":"Background: In forensic dentistry, odontologists have been particularly interested in the investigation of burnt human remains. The purpose of our research is to provide morphological, stereomicroscopic, histological, and gravimetric findings from the investigation of the effects of thermal processes on teeth.Teeth, being the hardest substance in the body, give valuable information for forensic analysis. Objective: Histomorphology and gravimetric changes in teeth exposed to different ranges of high temperatures. Methodology: Thirty-six mandibular premolar teeth extracted for therapeutic purpose were taken and exposed to the varying higher temperatures. Macroscopic, stereomicroscopic, histological analyses along with the dry weight estimation were recorded at each temperature gradient. Results: From a lower temperature to a higher temperature, the specific colour change of the tooth was yellowish-orange, metallic black bronze and chalky white. Stereo microscopically, we observed intact teeth at 100°C; the gradual formation of micro cracks, crown-enamel separations from the cervical margin, eggshell cracking at 500°C; and a completely shattered crown at 900°C. Decalcified sections show dilation in the dentinal tubular pattern at 300°C. Loss of typical architecture was noted at 400°C, with dentinal tubules exhibiting the vapor bubble appearance. In-ground section alterations on the scalloping nature of dentino enamel junction, coalescing radicular dentinal tubules and sand cracking appearance of the tooth were noted at 100°C, 300°C and 900°C, respectively. Significant reductions in the weight of the teeth samples were observed with higher temperatures. Conclusion: Incineration-induced morphologic, histologic, and gravimetric alterations may provide useful information regarding the temperature and duration of fire exposure. It might also assist in understanding the conditions of the fire.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85648154","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: 0

Aadhaar Number Labeled Complete Denture: A Case Report Aadhaar编号全口义齿1例报告

Journal of forensic dental sciences Pub Date : 2021-03-29 DOI: 10.18311/jfds/13/1/2021.585

Tushar ., Srishti Garg, Aditya Chaudhary, Anju Aggarwal

引用次数: 0

Evaluation of Frontal Sinus as an Aid in Personal Identification - A Digital Radiographic Study 评价额窦在个人识别中的辅助作用——数字x线摄影研究

Journal of forensic dental sciences Pub Date : 2021-03-29 DOI: 10.18311/jfds/13/1/2021.622

A. Akanksha, M. David

{"title":"Evaluation of Frontal Sinus as an Aid in Personal Identification - A Digital Radiographic Study","authors":"A. Akanksha, M. David","doi":"10.18311/jfds/13/1/2021.622","DOIUrl":"https://doi.org/10.18311/jfds/13/1/2021.622","url":null,"abstract":"Background and Objectives: The cranio-facial structures have the advantage of being composed largely of hard tissue which is relatively indestructible. The frontal sinus is as unique to each individual as a fingerprint, even to monozygotic twins. The present study was conducted to evaluate frontal sinus as an aid in personal identification. Methods: The study was conducted among 200 subjects (100 males and 100 females). Posteroanterior radiographs were taken using KODAK 8000 C Digital Panoramic and Cephalometric system and digital measurements made using Trophy Dicom and Masterview 3.0 Software. Frontal sinuses were classified and analyzed. Total height and total width of frontal sinus was measured according to Tatlisumak and Uthman A T. Inter orbital width was measured according to Ribeiro. Total orbital width was measured as an additional parameter. Results: Of the total 200 (100%) subjects we observed uniqueness of frontal sinuses in all the 167 subjects with presence of frontal sinus with central septa presence with none being identical and found 16 subjects with central septa absence, where the mean total height and total width of frontal sinus was measured and 17 subjects with bilateral absence of frontal sinus, where mean inter-orbital width was measured. Total orbital width was considered for the combined 33 subjects. Conclusion: We conclude that frontal sinuses can be used as a potent aid in personal identification. The combined use of frontal sinus and orbital measurements can be a valuable, cost-effective adjunct to positive human identification.","PeriodicalId":89172,"journal":{"name":"Journal of forensic dental sciences","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79137423","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: 0