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dental forensic

Jayakumar Jayaraman, Graham J Roberts
Understanding dental maturation in ethnically distinct populations is important in forensic age estimations and the presence of population differences in dental maturation was highly debated. No such comparison had been performed between two major populations; Caucasian and Chinese. This study aims to analyze and compare the maturation of permanent teeth from a sample of Caucasian and Chinese populations. Dental panoramic radiographs of subjects aged 2-24years belonging to United Kingdom (UK) Caucasian and Hong Kong (HK) Chinese populations were obtained from a teaching hospital...
September 15, 2018: Forensic Science International
Douglas H Ubelaker
This special issue of Forensic Science International presents diverse perspectives and detailed information on the many factors involved in trauma analysis of the skeleton. Topics covered include nomenclature, antemortem timing, post-mortem loss of plasticity, terminal ballistic/gunshot trauma, sharp force trauma, heat-induced fracture, non-metric traits and pseudo-trauma, taphonomic alterations, microscopic evidence for hemorrhage, imaging of perimortem trauma, dental trauma and linkages between soft and hard tissue...
September 3, 2018: Forensic Science International
Ana Catarina Anastácio, Cristina Serras, Rui Filipe Vargas de Sousa Santos, Cristiana Palmela Pereira
The goal of this project is to validate the Cameriere's method applied to the upper and lower second premolars in a Portuguese population, regarding the forensic estimate of age. The applied sample consisted in 100 panoramic radiographs, of 60 males and 40 females, patients of the Faculty of Dental Medicine of the University of Lisbon, whose ages vary between 15 and 35 years old. Thus, a total of 400 teeth were investigated (200 upper second premolars and 200 lower second premolars). Each radiograph was analysed using draw and measurement tools featured in Adobe Photoshop, applying the Cameriere's method, and then the pulp/tooth ratio was computed for the 15, 25, 35 and 45 teeth...
September 11, 2018: Journal of Forensic and Legal Medicine
Hichem Nemsi, Malek Ben Daya, Nidhal Haj Salem, Fatma Masmoudi, Inès Bouanène, Fethi Maatouk, Abir Aissaoui, Ali Chadly
This study aims to evaluate and compare the applicability of three dental methods for age estimation, including Demirjian's four teeth, Willems I, and Willems II methods in a sample of Tunisian children. Panoramic radiographs of 500 children (241 females, 259 males) aged between 5 and 15 years were examined. The mean absolute error (MAE) was performed to assess the accuracy of age estimation. Independent samples t-test was employed to compare the differences, the chronological age minus dental age (CA-DA), between sexes for the three methods...
August 22, 2018: Forensic Science International
P Kanokwongnuwut, P Kirkbride, A Linacre
Collection for touch DNA either at scenes or on items submitted to a forensic laboratory is based on assumptions as to where a person made direct contact. In many instances a swab may be applied to an area where no contact has been made. Many swabs may therefore be submitted for DNA profiling on which no DNA is present, resulting in the loss of both time and resources by analysing such swabs. This study has developed a simple, fast, DNA-staining and fluorescence microscopy-based screening method for swabs to indicate if there is any DNA from which to generate a profile...
August 25, 2018: Forensic Science International
Ademir Franco, Solon Diego Santos Carvalho Mendes, Fernando Fortes Picoli, Livia Graziele Rodrigues, Rhonan Ferreira Silva
Forensic thanatology comprises the investigation of every phenomenon related to death performed through cadaveric exams. The pink tooth phenomenon (PTP) emerges as a thanatological finding registered during medical or dental autopsy. The PTP consists of a reddish or pink coloration caused in the teeth by the penetration of pulpal hemoglobin in the dentinal tubules. Initially, the PTP was associated with specific violent deaths, such as drowning, hanging and poisoning. However, scientific reports have pointed towards the occurrence of PTP as an expression of cadaveric decomposition regardless of the cause of death...
August 18, 2018: Forensic Science International
Mari Metsäniitty, Janna Waltimo-Sirén, Helena Ranta, Steffen Fieuws, Patrick Thevissen
AIM: The aim of the current study was to retrospectively collect dental panoramic radiographs from Somali children living in Finland, to use the radiographic data to develop a new age estimation model based on the model established by Willems et al. (J Forensic Sci 46(4):893-895, 2001), and to compare the age prediction performances of the Willems et al. model (WM) and the newly developed model. MATERIAL AND METHODS: Dental panoramic radiographs from 808 healthy Somalis born in Finland were selected...
September 1, 2018: International Journal of Legal Medicine
Christopher Aris, Pia Nystrom, Elizabeth Craig-Atkins
OBJECTIVES: This study investigated the use of sexually dimorphic metrics of the first permanent maxillary molar (M1 ) to determine sex in adult and immature individuals within and between populations. METHODS: Ten M1 dimensions were measured in 91 adults (19-55 years) and 58 immatures (5-18 years) from two English populations, one of documented sex (Spitalfields crypt) and another of morphologically-assigned sex (Black Gate). Preliminary statistical analysis was undertaken to explore bilateral differences and variation by age and sex, followed by multivariate analyses to predict sex from dental metrics...
August 29, 2018: American Journal of Physical Anthropology
Treville Pereira, Subraj Shetty, Ridima Surve, Swati Gotmare, Pooja Kamath, Sourab Kumar
Background: Identification of an individual is a challenging task in the field of forensic odontology. Sometimes, the identity of individuals by fingerprints is difficult; hence, the examination of palatal rugae and the human dentition is a viable option. Aims and Objectives: The objective of the present study was to determine the sex of an individual and the hereditary pattern using three parameters are as follows: palatine rugae, dimensions of maxillary molar and maxillary canine...
May 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
Dorottya Frank, Leila Rill, Béla Kolarovszki, Ákos Károly Nagy
The assessment of skeletal age is of utmost importance not only in the field of anthropology, forensic medicine, pediatrics, endocrinology but also in orthodontics and jaw orthopedics. Bone age refers to the individual's biological development which can differ within a relatively wide range for the same chronological age. Therefore, accurate assessment of skeletal maturity and pubertal growth plays an important role in establishing a diagnosis for certain diseases. In addition, it is essential for proper timing and success of treatments in many cases...
September 2018: Orvosi Hetilap
Priyanka Kapoor, Vanshika Jain
With an alarming increase in number of juveniles in conflict with the law, in India as well as worldwide, more emphasis lies on radiographic dental age estimation (DAE) methods for different ethnic populations having specific formulas based on large sample databases. Of these, Chaillet and Demirjian modification of original Demirjian method was devised to increase the applicability to 18-year-old individuals. However, this method is cumbersome with multiple tables and difficulty in comprehension, thus deterring its use on a wider scale...
October 2018: Journal of Forensic and Legal Medicine
Luca Fiorenza, Robin Yong, Sarbin Ranjitkar, Toby Hughes, Michelle Quayle, Paul G McMenamin, John Kaidonis, Grant C Townsend, Justin W Adams
OBJECTIVES: Rapid prototyping (RP) technology is becoming more affordable, faster, and is now capable of building models with a high resolution and accuracy. Due to technological limitations, 3D printing in biological anthropology has been mostly limited to museum displays and forensic reconstructions. In this study, we compared the accuracy of different 3D printers to establish whether RP can be used effectively to reproduce anthropological dental collections, potentially replacing access to oftentimes fragile and irreplaceable original material...
August 20, 2018: American Journal of Physical Anthropology
Hugo F V Cardoso, Julia Meyers, Helen M Liversidge
This study provides an update on a quantitative method for immature age estimation based on postnatal deciduous mandibular tooth length. Two known sex and age skeletal collections from Western Europe were sampled (n = 97). Linear regression models for age estimated were calculated for each individual tooth, each sex, and sex combined sample using classical calibration. Prediction errors, residuals, and percentage of individuals whose real age fell within the 95% prediction interval were calculated. The teeth which develop earlier in life, the incisors and the first molar, showed the greatest precision, while the canine showed the least...
August 20, 2018: Journal of Forensic Sciences
Ripon Md Chowdhury, Abhishek Singhvi, Neeta Bagul, Sanya Bhatia, Gurdeep Singh, Surajit Goswami
Introduction: Forensic odontology necessarily involves the application of dentistry along with various other branches of sciences which deals with proper handling, examination, evaluation, and presentation of dental evidences, that aids to investigate a crime and deliver justice. Sex determination is a part of forensic odontology and an essential priority when traditional identification of the deceased becomes impossible. Aim: To determine Sex by analysis of the Amelogenin gene using Polymerase Chain Reaction (PCR) method on Deoxyribose nucleic acid (DNA) isolated from dental pulp, which was exposed to various environmental conditions created artificially to mimic a forensic scenario...
July 2018: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
Raniah Abdullah Al-Eid, Sundar Ramalingam, Chalini Sundar, Mona Aldawsari, Nasser Nooh
Aim and Objectives: Oral surgical procedures can cause spread of infections in the clinics through visually imperceptible, splattered, and aerosolized blood. The aim of this study was to evaluate visually imperceptible blood contamination of clinical surfaces and personal protective equipment (PPE) in an oral surgery clinic using luminol. Materials and Methods: Following ethical approval, oral surgical procedures were performed under local anesthesia in a disinfected clinic, and PPE was used by the oral surgeon, dental assistant, and patients...
July 2018: Journal of International Society of Preventive & Community Dentistry
Emilio Nuzzolese
Unidentified human remains require the complete collection of data during the autopsy stage to achieve, even belatedly, a positive identification. The very large number of people reported as missing in Italy (36,902) may represent an obstacle in the investigative process leading to the potential identity of the corpse, considering that 76.98% are foreigners. Add to this, the high number (1868) of "unidentified corpses" yet to be identified. A single case of a skeletonized corpse, listed in the list of nameless bodies is presented, with particular attention to odontology assessment...
January 2018: Journal of Forensic Dental Sciences
Sinthia Bhagat, Vineeta Gupta, Nutan Tyagi, Ettishree Sharma, Sonia Gupta, Mohit Dadu
Introduction: Bite-mark analysis has proven its advantage as an important forensic tool in the past but also has a few limitations to it. To enhance its utility in forensic odontology in this study we have coupled it with Berry's Index (BI) which is an index used to select anterior teeth in prosthetic practice. Aims and Objectives: This study was attempted to analyze the applicability of BI in identifying an individual. Materials and Methods: This study was directed among 300 individuals with ages ranging between 19 and 30 years...
January 2018: Journal of Forensic Dental Sciences
Deepti Sharma, George Koshy, Amandeep Pabla, Sanchita Garg, Manveer Singh
Introduction: The prime objective of the subsequent investigation is to ascertain the identity of an individual by the evaluation of evidence and facts relevant to crime or disaster. The whole process revolves around the correct interpretation of the facts, reconstruction, and comprehension of the sequence of events and thus single evidence forms a very important piece of information. In most of the countries including India, forensic medical, and dental evaluation at the crime scene are performed by police officials as medical and dental experts are rarely involved as first responders...
January 2018: Journal of Forensic Dental Sciences
Sakher AlQahtani, Ivana Čuković Bagić, Scheila Manica, Evi Untoro, John Rosie, Emilio Nuzzolese
The dentists' main job is to restore health and function to the oral cavity. However, dental professionals can also be involved in medico legal activities as forensic odontologists or by being Expert Witnesses (EW) to testify in professional liability cases, car accidents and work-related injuries. When called to act as an expert witness by the Court, the appointed dentist has to combine both biological and technical knowledge with equivalent medico-legal and forensic knowledge. Spontaneous involvement in medico-legal matters without an adequate training and experience can lead to mistakes with irreversible consequences...
January 2018: Journal of Forensic Dental Sciences
S Karthika Nagarajan
Children should be given the privilege to mature in a loving, supportive family environment that promotes the development of an individual to his/her full potential. The abuse and neglect of children is a problem that pervades all segments of society. Dentists/forensic odontologists are in a strategic position to recognize mistreated children. While the detection of dental care neglect is an obvious responsibility for dentists, other types of child abuse and neglect also may present themselves in the dental office...
January 2018: Journal of Forensic Dental Sciences
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