Variations in mandibular coronoid process-A morphometric treatise

Abstract

The Coronoid process is a triangular upward projection from antero-superior part of ramus of mandible giving attachment to two important muscles of mastication. Aims: The aim of our study was to observe the variations in shape and size of coronoid process and establish the morphometric profile in Indian population. Materials and Methods: The material for this study comprised of 500 adult human mandibles. The shape of coronoid process was observed and its height and length were measured. Results: Three variants of coronoid process were observed (round, triangular and hook) with incidence percentage 46, 42 and 12 respectively. The mean value of height and length of coronoid process came out to be 60.62 mm and 12.53 mm respectively. Conclusions: This morphometric treatise provides valuable inputs relevant for anthropological comparisons, forensic investigations and reconstructive procedures.

Do astigmatid teeth matter: a tribological review of cheliceral chelae in co-occuring mites from UK beehives

“…The location of this asperity along the reference L2M axis is at x = L2 # which (if there was no height i.e., y = 0 ) would induce a different crunch force F2 # (in grey) parallel to F2. Note that the upper surface of the moveable digit basally (i.e., proximally to the condyle) rises like the 'coronoid' process in vertebrate lower mandibles (Nayak et al 2015;Kahlon and Agnihotrri 2020) in between in chelal form. Each mite species had teeth on their chelal digits, but again these were not investigated.…”