Experiment 27. Forensic Odontology 2: Who Made the Questioned Bite Mark?

Author(s):  
Kholod Alsowayigh ◽  
Rawan Almajaishe ◽  
Shatha Shareef ◽  
Hassan Alateeq ◽  
Norah Alaskar ◽  
...  

Aims: This study aims to measure the knowledge and awareness level towards Forensic odontology and Bite mark analysis among Dental students in Saudi Arabia. Study Design: This is an observational cross-sectional study. Place and Duration of Study: Conducted in Saudi Arabia from July to August 2021. Methodology: The study’s population consisted of Dental undergraduate in Saudi Arabia. Our Inclusion criteria: Male and Female, Private or Public, Dental Intern and dental students in Saudi national or non-Saudi. And Agree to Participate. The sample size was estimated using the Qualtrics calculator with a confidence level of 95%; a sample size of 386. Google Form was used as study tools the questionnaire contained 8 Questions. The First question includes information about years of study, the second question Name the College of a student, and other questions include questions on knowledge about Forensic odontology and Bite Mark analysis, and would they wish this specialization would be Available to us in Saudi Arabia Results: A total of 386 participants completed the survey questionnaire. The results showed that the 75.4% of the study participants were females compared to 24.6% of them were males. it can be noted that approximately 75% of the study participants were in advance levels of their education (fourth year or after) compared to 25% of students were at inception phase of their study. Conclusion: Every dental student must have knowledge of forensic dentistry because it is important to preserve the rights and assist the legal and security authorities in identifying victims and suspects and gaining awareness to accurately.


2020 ◽  
Vol 9 (12) ◽  
pp. e40391211177
Author(s):  
Maria Isabel de Oliveira e Britto Villalobos ◽  
Marta Regina Pinheiro Flores ◽  
Rodrigo Galo ◽  
Antônio Castelo Branco ◽  
Ricardo Henrique Alves da Silva

Forensic Odontology is the science that correlates dental and legal principles, used for processes such as human identification. One of the possible acting fields for Forensic Odontologists is the analysis and study of patterns and injuries created by human bite marks. This study aimed to show the applicability of dental marks printed in chewing gum for human identification in forensic investigations. A transversal observational study was carried out. The data was collected from 20 volunteers over 18 years old. Each subject had their upper and lower dental casts and was asked to chew a piece of gum for one minute. The pieces of chewing gum were refrigerated at -20ºC for a week, and reproduced with addition and condensation silicones using an adapted reproduction technique. The analysis of the chewing gum was made by overlays. The ANOVA test showed no significant differences on width and length between the pieces of chewing gum and their reproductions (greatest width p=0.918, and the length p=0.981). The analysis of the reproductions with plaster mold showed that there was no difference when using addition silicone or condensation silicone. During the analysis, various suspects could be excluded from the investigation (up to 11, depending on the technique used), but it was not possible to confirm one of them as the main suspect. The study showed that the reproduction technique of chewing gum is efficient, viable and easily performed; and can be used in cases of human identification in forensic investigations. However, it is necessary to certify that the chewing gum effectively presents a bite mark and that it is correctly handled to avoid alterations. It also became evident that the process of refrigeration is essential for the analysis proposed in this study.


Author(s):  
Robert E. Barsley ◽  
David R. Senn ◽  
Thomas J. David ◽  
Franklin D. Wright ◽  
Gregory S. Golden

Forensic Odontology or forensic dentistry is the use of dental expertise, dental findings, and dental facts in legal proceedings. The principal efforts of dentists in this regard are geared toward establishing the identity of unknown human remains or verifying the identity of visually unrecognizable human remains. The digital revolution has impacted all aspects of forensic odontology. This chapter will discuss the impact on person identification through dental means, dental identification in mass or disaster victim incidents, establishing the age of an unknown individual or human remains through dental examination, digital photography in dentistry and forensic odontology, and the use of digital methods in the analysis and comparison of bite mark evidence.


2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Anirban Maji ◽  
Tanya Khaitan ◽  
Rupam Sinha ◽  
Soumyabrata Sarkar ◽  
Pratik Verma ◽  
...  

Background. Bite mark analysis is an imperative area of forensic odontology and considered the commonest form of dental evidence presented in the criminal court. The process of comparing bite marks with a suspect’s dentition includes analysis and measurement of shape, size, and position of an individual’s teeth. The present study was aimed to evaluate the bite marks of males and females using a novel indirect computer-assisted method and explicate its application in forensic odontology. Materials and methods. 60 subjects (30 males and 30 females) with normal occlusion were included in the present study. Bite registrations were obtained with help of modelling waxes, and positive replicas were prepared with dental stone and barium powder. Intraoral periapical radiographs were taken for the same. The radiographs obtained were scanned and analyzed by measuring tools using Sidexis Next Generation software. Intercanine distance (ICD), line AB, angle ABX, and angle ABY were measured. The Kruskal–Wallis test was performed to compare the bite marks of males and females. Results. The mean ICD of males and females was found to be 32.95 mm and 29.84 mm, respectively, and was statistically highly significant with a p value <0.001. The mean ICD, line AB, and angle ABX were found to be higher in males when compared to females. Conclusion. Analysis of bite marks using this novel computer-assisted method is a simple, reliable, easily reproducible, and economical technique with confidentiality of the identity of the participants involved.


2015 ◽  
Vol 27 (3) ◽  
Author(s):  
Yuti Malinda ◽  
Dewi Zakiawati

Introduction: Bite mark analysis casework strives to connect a biter to the teeth pattern present on the object linked in some way to crime or event. This analysis requiring an immediate response by the forensic odontologist since the marks fade rapidly in the living and the dead in a matter of hours. The aim of this article is to help the dentist to know and understand the procedures of bite mark identification in forensic odontology field. Literature review: Bite marks may be present the following situations, a fight between adults or children, a part of sexual or physical assault by adult on children, a rape, and homosexual activities. The marks can be single or multiple, varying degrees of severity from mild marking of the tissue to deep perforation, varying location may be found on breast, face/ head, abdomen, shoulder, upper extremity, buttocks, female genitalia, male genitalia, legs, ear, nose and neck. Discussion: Dentist should master the bite mark analysis procedures. When the suspect has been recognized, the first thing to do is swabbing the oral mucosa, and then taking photographs. The next steps are preparing to take impression, and always taking notes about the procedure and the result. A soon as all the documents are completed, do the matching procedures. Delay examination will cause the lost of valuable evidence. Conclution: Dentist should carefully determine the conclusion among these possibilities , the mark is “possible biter”, “probable biter”, or “with a high level of confidence, is the biter”


e-GIGI ◽  
2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Erwin Kristanto

Abstract: Examination of bite mark is one form of dental assistance for the enforcement of justice. A dentist can examine bite mark or be asked his/her expert assessment of bite mark that has been recorded by another dentist. The source of bite marks, the substrate onto which they are generated, and the technique of lifting the bite imprints serve as important tools in analysis. This study was aimed to obtain mengetahui seberapa besar analisis jejas gigitan dapat mengungkapkan pelaku. This was a retrospective and descriptive study, using clinical forensic data from RS Bhayangkara Tingkat III in Manado from January 2015 to December 2019. This study used 2,197 clinical forensic cases data, of which there were 34 cases with bite marks. The most common bite sites were found in the arms (23.4%) and the least locations were found on the cheeks and neck (0.2%). There were 85.29% of bite marks that could be matched with suspected tooth molds. In conclusion, as many as 85.29% of bite marks in this study could be matched with suspected tooth molds. Albeit, mismatch of tooth patterns is not automatically removed somebody from the suspect list. Determinant variables such as the location of bite mark, movement of the jaw or part of the body bitten, and the process of inflammation in the body of the victim must be used as material for analysis in identifying the perpetrators.Keywords: bite mark, forensic odontology, identification of suspect Abstrak: Pemeriksaan jejas gigi (bite mark) merupakan salah satu bentuk bantuan dokter gigi bagi penegakan keadilan. Seorang dokter gigi dapat diminta melakukan pemeriksaan dan analisis jejas gigi atau diminta untuk memberikan keterangan ahli tentang jejas gigi yang telah diperoleh dokter gigi lain. Sumber bekas gigitan, media yang digunakan untuk mendokumen-tasikan dan teknik mentransfer bekas gigitan berfungsi sebagai alat penting dalam analisis. Penelitian ini bertujuan untuk mengetahui seberapa besar analisis jejas gigitan dapat mengungkapkan pelaku. Jenis penelitian ini ialah deskriptif retrospektif, menggunakan data forensik klinik dari RS Bhayangkara tingkat III Manado pada rentang tahun 2015-2019. Pada penelitian ini digunakan data dari 2197 kasus forensik klinik; diantaranya terdapat 34 kasus dengan jejas gigitan (bite mark). Lokasi jejas gigitan terbanyak ditemukan pada lengan (23,4%) dan paling sedikit pada pipi dan leher, (0,2%) serta didapatkan 85,29% jejas gigitan pada penelitian ini dapat dicocokkan dengan cetakan gigi tersangka. Simpulan penelitian ini ialah sebesar 85,2% jejas gigitan dapat mengungkapkan pelaku, namun ketidakcocokan pola gigi tidak secara otomatis menyingkirkan seseorang dari daftar tersangka. Variabel penentu seperti lokasi gigitan, pergerakan rahang atau bagian tubuh yang digigit, dan proses peradangan pada tubuh korban harus dijadikan bahan analisis dalam mengidentifikasi pelaku, agar tidak terjadi kesalahan identifikasi pelaku.Kata kunci: jejas gigitan, odontologi forensik, identifikasi pelaku


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