10 Incisor crossbite
Matthew is 8 years old. He presents with an upper incisor in crossbite (Fig. 10.1). What is the cause and how would you manage it?
Oral hygiene is fair. Marginal gingival erythema is evident related to the incisor teeth. There is marked attrition of with carious involvement of mesially and distally. With the exception of the lower right quadrant where has been lost, 6edc 21 are present in each quadrant.
Gingival recession appears to be evident on the labial aspect of . is displaced labially; the lower arch appears uncrowded. are rotated mesiolabially; is displaced slightly palatally and there is a small median diastema. Otherwise the upper arch appears uncrowded. The incisor relationship is Class I and is in crossbite; is partially erupted with the distoincisal aspect in crossbite with .