Are supernumerary teeth associated with third molar agenesis?

Third molar agenesis may be linked to supernumerary tooth formation, according to a study published in Orthodontics and Craniofacial Research.

In the study, investigators conducted a record review across various orthodontic clinics to identify 380 white patients of European descent — 50% of whom had nonsyndromic permanent supernumerary teeth and 50% of whom were age- and sex-matched controls with full dentition.

The investigators found no sex-based differences in third molar agenesis severity. They discovered that the prevalence of third molar agenesis was similar between both groups; however, the patients with supernumerary tooth formation had a lower ratio of bilateral to unilateral third molar agenesis compared with controls.

The investigators emphasized that the presence of supernumerary teeth did not impact the risk of third molar agenesis. They hope their findings can help physicians predict and diagnose third molar formation.

Read more: Orthodontics and Craniofacial Research

The article presented here is intended to inform you about the broader media perspective on dentistry, regardless of its alignment with the ADA's stance. It is important to note that publication of an article does not imply the ADA's endorsement, agreement, or promotion of its content.