Supernumerary teeth: Report of four unusual cases

Abstract

Supernumerary tooth denotes duplication of tooth in the normal series. It is a developmental anomaly and has been argued to arise from multiple etiologies. These teeth may remain embedded in the alveolar bone or can erupt into the oral cavity. The supernumerary tooth might cause esthetic and/or functional problems, especially if it is situated in the maxillary anterior region. Complications reported were delayed or prevented eruption of succedaneous teeth, displacement or rotation, crowding of the affected region, abnormal diastema, dilacerations, cystic formation, and sometime eruption into the nasal cavity. In this case report, four unusual cases of supernumerary teeth that resulted in varying degrees of disturbances in permanent dentition are presented. Conservative surgical intervention and light orthodontic forces were used to bring the teeth into normal position with minimal disturbance to the surrounding oral structures.

Prevalência de dentes supranumerários em pacientes atendidos no Hospital Universitário da UFPI: um estudo retrospectivo de cinco anos

“…A hiperdontia é um termo que se refere ao desenvolvimento de dentes supranumerários, os quais são descritos como dentes em excesso 3 , ou seja, além da quantidade fisiológica de dentes que constituem as arcadas dentárias. Neste sentido, os dentes supranumerários são considerados uma anomalia de desenvolvimento, que pode ter diversos fatores etiológicos 5 .…”

Cone-beam computed tomography exploration and surgical management of palatal, inverted, and impacted mesiodens

“…[ 8 ] However, the potential disadvantages associated with this deferred surgical plan include loss of eruptive force of adjacent teeth, loss of space and crowding of the affected arch, and possible midline shifts. [ 25 ] In the present case, surgical extraction of supernumerary teeth and mesiodens was made as soon as it was diagnosed, without any damage to adjacent teeth.…”

“…A spontaneous eruption of the impacted permanent maxillary central incisor following supernumerary removal is suggested to be in the range of 54–75% and within 16–18 months of the removal of the supernumerary tooth. [ 22 25 ] Smailiene et al . have suggested that spontaneous eruption of impacted maxillary incisor has an advantage over its surgical-orthodontic treatment.…”

Phenotypic heterogeneity of non-syndromic supernumerary teeth: genetic study

“…The prevalence of ST in the general population is 0.3–3.8%, and in the Caucasian population it varies between 1% and 3%, the male being twice as frequently affected versus the female gender [ 4 , 5 , 6 , 7 , 8 , 9 ]. ST may be single or multiple, present unilaterally or bilaterally, with normal or altered morphology, erupted or included, and may affect both temporary and permanent dentition, located both in the maxilla, mainly in the anterior jaw in 62–90% of cases, as well as at the mandibular level, less often [ 10 , 11 , 12 , 13 , 14 ].…”