8 Infraoccluded primary molars
Aileen is 11 years old. She is referred by her general dental practitioner for infraoccluded lower primary molars (Fig. 8.1). What is the cause and how would you treat it?
Aileen and her mother were unaware of any problem with her molars until this was brought to their attention recently by their general dental practitioner. There is no discomfort associated with these teeth and they are not loose.
Aileen has a mild Class II skeletal pattern with average FMPA and no facial asymmetry. The lips are incompetent with the lower lip lying at the incisal edges of the upper incisors. There are no temporomandibular joint signs or symptoms.
Separate phases of resorption and repair occur in the exfoliation of primary teeth. Although resorption predominates in most cases, sometimes repair prevails temporarily leading to ankylosis of a primary molar. As alveolar growth and eruption of the adjacent teeth continue, the tooth infraoccludes.