Intercanine distance and bite marks analysis using metric method

Tarvadi, Pratik; Manipady, Shahnavaz; Shetty, Mahabalesh

doi:10.1016/j.ejfs.2016.11.001

Cited by 5 publications

(6 citation statements)

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“…Although mean values of line AB and angles ABY and ABX were insignificant, mean values of line AB and angle ABX were higher in males. In contrary, Tarvadi et al evaluated that ICD as a parameter is an unreliable method for bite mark analysis [20]. …”

Section: Discussionmentioning

confidence: 99%

A Novel Computer-Assisted Method of Bite Mark Analysis for Gender Determination

Maji

Khaitan

Sinha

et al. 2018

Journal of Environmental and Public Health

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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.

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Section: Discussionmentioning

confidence: 99%

A Novel Computer-Assisted Method of Bite Mark Analysis for Gender Determination

Maji

Khaitan

Sinha

et al. 2018

Journal of Environmental and Public Health

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“…who measured the intercanine width using cusp tips. [ 24 ] He found that using intercanine width as a parameter for bite mark analysis is an unreliable method. This may be because the canine cusp tips are not as discernible in the bite mark as the outline of the canine is.…”

Section: Discussionmentioning

confidence: 99%

A comparative study of sagittal dental relationship using digital method of bite mark evaluation

Raina¹,

Kulkarni²,

Shah³

2019

J Forensic Dent Sci

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Introduction: Intercuspation of teeth depends on position of teeth and jaws. Bite mark is the resultant of the intercuspation of teeth produced by an individual. Aims and Objective: Comparative evaluation of bite marks in Angle's Class I, II, and III sagittal occlusion. Materials and Methods: Three groups as per Angle's classification-Class I, Class II, and Class III relation were taken. Each group comprised 30 samples each. The dental casts were scanned to create digital images. “IC Measure” software was used to determine the angular and linear measurements on scanned images of study model after calibration. Internal angles of odontometric triangle, intercanine width, shape of the arch, size, and shape of the individual teeth was recorded and subjected to the statistical analysis. Results: All incisors had rectangular and canine had triangular shape. Bilateral maxillary lateral incisors and mandibular left central incisor were significantly small in size for Class III. Square arch form was found more commonly in Class III and ovoid arch form in Class I and Class II occlusion. Intercanine width was insignificant among all occlusions. All the angles of the odontometric triangle in the maxillary and mandibular arches were significant for Class III. Conclusion: Class III occlusion individuals were distinct for shape of the arch and angles of maxillary and mandibular odontometric triangle. The quantified values of odontometric triangle can be utilized for the identification of Class III individuals.

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“…Some authors stated that the inter-canine width is not a reliable variable for identification due to its high level of false positives (Toledo et al;Tarvadi et al, 2016). Other authors also indicate that this measurement was not good for differentiating dog breeds (Tedeschi-Oliveira et al).…”

Section: Discussionmentioning

confidence: 99%

“…Although the court of law can accept the bite marks analysis, scientific reliability is still up for debate (Kashyap et al, 2015;Tarvadi et al). However, Rivera-Mendoza et al found the most varied range of bitten substances, all of them belonging to sentenced cases, and many potentially treatable as legal precedents.…”

Section: Discussionmentioning

confidence: 99%