Related Experiment Video
Updated: Jun 22, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Multiple supernumerary premolars in two siblings: a case report
1School Dental Care Service, Department of Health, Hong Kong. rony_cho@dh.gov.hk
Abstract:
The presence of three or more supernumerary teeth in one patient is uncommon. Genetic as well as environmental causes have been suggested as possible aetiological factors in the pathogenesis of supernumerary teeth. This report describes the dental findings and management of multiple supernumerary premolars in two siblings. The number and locations of the supernumeraries in both cases were almost identical. The findings from these cases give further support to the important role of genetic factors in the aetiology of supernumerary teeth. Primary care dentists who treat children should be aware of the possibility of familial occurrence of supernumerary teeth.
Related Concept Videos
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
Multiple Allele Traits
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
Case Studies
