Abstract
The incidence of nonsyndromic supernumerary premolars is rare. Supernumerary premolars are likely to undergo pathological changes. The most commonly encountered complications with these teeth are dentigerous cyst and root resorption of the adjacent tooth. This paper is about impacted double fused supernumerary premolars in the right mandiblular body associated with an impacted first premolar in a 17-year-old male. Under local anesthesia, the supernumerary premolars and the impacted permanent first premolar were surgically removed. Early diagnosis followed by an appropriate treatment at the right time will result in favorable prognosis in such cases.
Highlights
Supernumerary teeth (ST) occur in addition to the normal complement of teeth in permanent or deciduous dentitions [1]
It has been reported that the prevalence of supernumerary premolars (SP) is between 0.075 and 0.26% and that supernumerary premolars account for only 8–10% of all the supernumerary cases [3]
The lingual extension of an additional tooth bud leads to a eumorphic tooth, while the rudimentary form arises from proliferation of epithelial remnants of the dental lamina induced by pressure of the complete dentition [8]
Summary
Supernumerary teeth (ST) occur in addition to the normal complement of teeth in permanent or deciduous dentitions [1]. These teeth may remain embedded in the alveolar bone or can erupt into the oral cavity. The most accepted theory is regarding the hyperactivity of dental lamina [7] According to this theory, the lingual extension of an additional tooth bud leads to a eumorphic tooth, while the rudimentary form arises from proliferation of epithelial remnants of the dental lamina induced by pressure of the complete dentition [8]. Late developing (postpermanent) supernumerary teeth develop from the proliferation of the dental lamina after the permanent dentition is completed [9]. This paper aims to document a rare case of nonsyndromic fusion of two supernumerary supplemental premolars associated with an impacted permanent first premolar
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