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

Abstract

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.

Facial Anthropometric Norms of the Young Black South African Woman

“…The ruler and other physically measured linear measurements were used to establish a magnification scale for the subsequent photogrammetric analysis Digital photographs were analyzed, and measurements were performed using IC Measure version 2.0.0.245 and Rhinobase (2000-2001), both with a track-record of clinical reliability. [15][16][17] Linear and angular measurements as well as ratios were performed on anterior (Figure 3, Table 1), lateral (Figure 4, Table 2) and basal views (Figure 5, Table 3).…”

Orofacial Cleft and Mandibular Prognathism—Human Genetics and Animal Models

“…Physiological occlusion (class I) is manifested by a natural contact between the mesiobuccal cusp of the upper first molar and the buccal groove of the mandibular first molar. An anterior shift of the same cusp to the buccal groove of the lower first molar indicates a retrusion of mandible that is classified as class II [72]. Class III malocclusion occurs when the mesiobuccal cusp of the upper first permanent molar is distally placed to the mesiobuccal grove of the lower first permanent molar [73].…”

Técnicas de identificação humana em Odontologia Legal

“…Apesar disso, as marcas de mordida podem ser úteis para descartar um suspeito ou em casos em que a amostra de prováveis culpados representa uma população fechada, ou seja, todos os suspeitos do caso são conhecidos -assim a análise das marcas de mordida pode ser de grande ajuda (Raina, Kulkarni & Shah, 2019). Em um relato de caso, Weeratna (2014), mostrou que por meio da moldagem dos arcos dentários de familiares foi possível identificar qual era o responsável pelas injúrias causadas em uma criança de 3 anos.…”