The Unusual Peg Shaped Mandibular Central Incisor – Report of Two Cases

Abstract

Diverse morphological, structural and tooth number aberrations can occur within human dentition secondary to genetic and epigenetic influences. These deviations can manifest as microdontia, macrodontia, hypodontia, oligodontia to name a few. Non-syndromic microdontia is rarely noted, especially in the permanent mandibular incisors. This case report records two such rare cases of peg shaped microdont mandibular central incisor. In one case microdontia occurred synchronously with hypodontia. The facts about these malformations collectively form a body of knowledge with which would serve as a data base in monitoring the evolutionary process of human dentition.

Dracula tooth: A very rare case report of peg-shaped mandibular incisors

“…These aberrations can manifest as microdontia, macrodontia, hypodontia, and oligodontia. [9] Koch et al . [10] defined tooth size as abnormal, when dimensions deviate two standard deviations from average.…”

Literature Review: Rencana Perawatan pada Gigi Anomali Anatomi Microdontia

“…True generalized microdontia adalah keadaan seluruh gigi berbentuk normal dengan ukuran lebih kecil dari normal, sedangkan generalized relative microdontia adalah seluruh gigi berukuran lebih kecil dari normal dengan rahang lebih besar dari 2 normal. Etiologi mikrodontia adalah multifactorial (Laskaris, 2000;Malleshi, et al, 2014).…”

Localized Microdontia: Unilateral Peg Shaped Mandibular Central Incisor

“…These abnormalities may become apparent as structural and morphological variations or as alterations in the number of teeth. 2 The prevalence rate of microdontia as per various authors ranges from 0.16% to 4.3%. It was also reported that single tooth microdontia is a common condition affecting the maxillary lateral incisor and the second most commonly involved are the third molars.…”