Participation in sport carries an increased risk of sustaining dental trauma which can be reduced by the use of a mouthguard. Mouthguards work by dissipating the force of impact, thus reducing the force which is transferred to the dentition. There are different types of mouthguard available which vary in design, costs and the level of protection provided. This article aims to review the use of mouthguards in sport, the common barriers to their use and also the different types of mouthguards and their characteristics.

Partial or complete failure of tooth eruption may be due to several causes, including primary failure of eruption (PFE), and an accurate diagnosis is essential for appropriate management. This article reviews PFE and the possible treatment options. Case reports of two patients diagnosed with PFE are presented and their management discussed. CPD/Clinical Relevance: Primary failure of eruption can be difficult to diagnose and differentiate from other causes of failure of eruption. This paper highlights the clinical presentation of PFE through a review of the literature and by illustration with two clinical cases.