Variation in the Shape of Coronoid Process in Dry Mandible of Maharashtra Population

Abstract

Background: Knowledge about the morphological shapes of the coronoid process is useful for the maxillofacial surgeon. The Coronoid process can be easily harvested as a donor bone. It is also helpful in determining buccal vestibule during denture fabrication.Aim of the study: To find out the variation in shape of coronoid process and the intercoronoid distance in dry mandible of Maharashtra region. Material and Methods:One hundred and fifty seven (male 84 and female 73) dry mandible of Maharashtra region were studied for variations of shape in coronoid process of both sides and the intercoronoid distance .Results: Triangular shape coronoid process was found in 204 (64.97%), Hook shape in 66 (21.02%) sides. and rounded in 44 (14.01%) sides of mandible. Mean intercoronoid distance among males was found to be 9.2000 and 9.100 in females. Conclusions:It was found that most common shape of coronoid process found in our study was triangular. Mandible with hook shape coronoid process was almost equal in male and female mandible while triangular shape was slightly more in the male .

Morphological variations of the coronoid process, condyle and sigmoid notch as an adjunct in personal identification

“…The most common shape of the coronoid process detected was triangular followed by round with male predominancy seen maximum in the age range of 30-40 years in the population of Bengaluru which is in accordance with Column totals 300 300 600 the studies conducted by Sahithi et al in the South Indian population [7] and Shakya et al, [9] Sudha et al, [13] and Pradhan et al [14] among the South Indian populations. Our comment regarding the shape of coronoid population was totally opposing to the studies conducted by Tapas et al [12] among the North Indian population and Kadam et al [15] among the West Indian population where according to them hook/beak shape to be common followed by the triangular shape. Prajapati et al [16] had conducted a study using dry mandibles and the results showed that triangular coronoid processes were common followed by the round and the hook shapes.…”

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“…In the present study, the mean of the inter coronoid distance was 9.01cm, 8.96cm and 9.08 in mandibles showing triangular, rounded and hooked coronoid processes respectively. Our findings coincides with previous studies 18,19 .…”

Morphological study of variations in shape of coronoid process of adult human mandible

“…Mean intercoronoid distance among males was found to be 9.2000 and 9.100 in females. 4 Sudha et al also found that shapes of coronoid process were triangular (60.8%), rounded (14%) and hook (25.6%) in their study. Hook shape was found bilaterally in 28.8 %.…”

“…2 Many researchers have studied the morphology of coronoid process and have found varying shapes. [3][4][5][6][7][8][9][10][11][12][13] Similar study has not been done in this area. Hence, this study was conducted which will be useful to maxillofacial surgeons, forensic scientists and anthropologists.…”