Abstract
Fused or attached teeth in primary dentition are observed frequently in pediatric dentistry. Most cases of fused or attached teeth appear in the lower central and lateral incisor, or lateral incisor and canine.
We report on two cases of fused or attached primary molar in the patients with cleft lip, alveolus and palate (CLP). The first case showed that lower primary first molar and supernumerary tooth were attached together. Tooth germ of the second premolar was not identified by X-ray examination. The second one showed that the lower primary first and second molar were fused. The tooth germ of the lower second premolar was not identified. These results indicate that evaluation of attached or fused teeth in the region of the primary molar is required for dealing with the occlusion. Furthermore, the prevalence of dental caries is higher in those teeth compared with normal ones, because the attached or fused tooth has an accessory fissure and/or enamel hypoplasia.
We need to perform a careful and periodical examination to give occlusion and oral hygiene instruction to prevent caries for patients with CLP.
