Early Treatment of Failure of Eruption of a Permanent Molar.

Failure of eruption of a permanent first molar is a relatively infrequent clinical condition that affects the normal development of dentition and may cause malocclusion. There are two conditions that might result in failure of eruption: (1) mechanical failure (ankylosis) and (2) primary failure of eruption, with different clinical features and therapeutic approaches for each. It is often challenging for orthodontists and pediatric dentists to establish differential diagnoses of these conditions to ensure a successful treatment outcome. The purpose of this case report is to discuss the diagnosis and treatment of a failure of eruption of a permanent first molar. (J Dent Child 2019;86(3):150-3).