Unilateral Protostylid on Buccal Surface of Permanent Maxillary First Molar: A Rare Finding


Ghazala Hassan1                         BDS

Sarah Ghafoor2                                   BDS, PhD

ABSTRACT: Human dentition either primary or permanent exhibits a number of developmental morphological variations ranging from mild alterations in tooth shape to well developed supernumerary cusp. These genetic malformations may present as an isolated finding or as a part of a syndrome. A protostylid is an uncommon anomaly which presents as a supernumerary or accessory cusp located on the mesial half of the buccal surface on the maxillary or mandibular molars which seldom pose problems to the patient. As its prevalence varies with ethnic diversity, it is a frequent object for anthropological studies. A 31 year old Pakistani female presented with a complaint of pain in right mandibular quadrant. Complete intraoral examination revealed a supernumerary cusp on the right permanent maxillary first molar as an incidental finding. No syndromic association was found.

KEY WORDS: Extra cusp; maxillary molar; morphological variations; protostylid; parastyle.

HOW TO CITE: Hassan G, Ghafoor S. Unilateral protostylid on buccal surface of  permanent maxillary first molar: a rare finding. J Pak Dent Assoc 2018;27(3):157-59.

DOI: https://doi.org/10.25301/JPDA.273.157

Received: 29 December 2017, Accepted: 19 April 2018