Bilateral protostylids and parastyles associated with hypodontia of maxillary lateral incisor: Report of two rare clinical cases

Abstract

Molars and premolars of maxilla and mandible infrequently exhibit a supernumerary inclusion or an anomalous cusp on their buccal surfaces which is known as a paramolar tubercle. When supernumerary cusps are associated with maxillary molars and premolars, they are termed as parastyle, and when associated with mandibular molars and premolars they are known as protostylid. This rare entity occurs singly in permanent dentition and is seen on the mesial half of the molars. The present paper reports two rare cases of bilateral paramolar tubercle in mandibular first molars and maxillary second molars associated with hypodontia of maxillary lateral incisor in both the cases. One paramolar tubercle in the mandibular molar was associated with accessory separate root on the distal aspect.

Keywords

• Bilateral
• parastyle
• protostylid