Rubinstein-Taybi syndrome is a multiple anomalies congenital disorder characterised by broad thumb and halluces, facial dysmorphism with mental and growth retardation. Oral features include small mouth, retro and micronagthic jaws, highly arched and narrow palate. Dental anomalies such as teeth with talon cusps and screwdriver shaped permanent incisors together with crowded teeth are common features in these patients. Although hyperdontia is said to be one of the features of this condition, nevertheless, presence of multiple supernumerary teeth has never been documented. This report highlighted a case of an eleven-year-old boy with Rubinstein-Taybi syndrome referred for unerupted permanent incisors who exhibited multiple supernumerary teeth radiographically.
Tooth, Supernumerary ; Child

Supernumerary teeth is one of the teeth dysplasia that the number of teeth exceeded normal. Most of supernumerary teeth reported were located in anterior teeth region, but rare cases were reported in molar region. This paper reported three cases that supernumerary teeth located in molar region.
Humans ; Molar ; Tooth ; Tooth, Supernumerary

Supernumerary teeth are extra teeth or tooth-like structures which may have either erupted or unerupted in addition to the 20 deciduous teeth and the 32 permanent teeth. Clinicians sometimes confront unerupted supernumerary teeth where implants would be placed. Many clinicians consider immediate placement of implant into an extracted socket as an effective technique compared to the conventional method of waiting several months for bone healing, because of the advantages such as reduction of treatment period, preservation of alveolar bone and soft tissue, etc. We could hardly find the case of immediate placement of implant after extraction of impacted supernumerary teeth and permanent teeth together. Therefore we report the case of immediate implantation following extraction of impacted supernumerary teeth and poor periodontal conditioned permanent teeth.]]>
Tooth ; Tooth, Deciduous ; Tooth, Impacted ; Tooth, Supernumerary

The presence of an ectopic supernumerary tooth in the nose is an uncommon phenomenon. A supernumerary tooth may be asymptomatic but must be given special attention as it has the potential to cause significant morbidity. Bilateral intranasal supernumerary teeth are an extremely rare disease entity. We report the clinical and radiologic findings of bilateral ectopic supernumerary teeth erupted from the nasal floor.
Nose ; Rare Diseases ; Tooth, Supernumerary*

The occurrence of supernumerary teeth is a relatively rare dental dysplasia. Permanent fourth molars are seldom observed in humans. A case of bilateral mandibular fourth molar is reported in this paper.
Humans ; Mandible ; Molar ; Tooth, Supernumerary

Supernumerary tooth is a frequent phenomenon in clinic, but the simultaneous occurrence of many supernumerary teeth and protuberance of jaw bones is rare. A case of 5 supernumerary teeth in oral and multiple protuberances of jaw bones was reported and the relevant literatures were reviewed.
Bone and Bones ; Humans ; Tooth, Supernumerary

The supernumerary teeth mean excessive teeth that appear in addition to the regular number of teeth and occur in a wide variety of sites. Mesiodens, which is a malformed, peg like tooth that occurs between the maxillary central incisor is most common. The next common site is the fourth molar and lateral incisors. Tonsil as a site of supernumerary teeth is rare, however, we experienced one such case of an ectopic supernumerary tooth embedded in tonsil.
Incisor ; Palatine Tonsil* ; Tooth ; Tooth, Supernumerary*

This study was conducted to investigate the characteristics of subculture times in the early, middle, and late passages by measuring the time under subculture until it was judged that the supernumerary tooth-derived pulp stem cells (sDPSCS) were no longer proliferating. Three supernumerary teeth from two healthy six-years old boys were extracted and stem cells were obtained from the pulp tissue. This was called SNT1 (supernumerary tooth 1), SNT2, and the supernumerary tooth from another child was named SNT3. SNT1 and 2 were subcultured at the same time and SNT3 was subcultured a little faster. The mean time of complete subculture was 3.6 ± 1.1 days. Total passages were cultured up to 23.3 ± 0.6 and took 83 days. These were divided into three groups based on the passage. The increase rate of time taken in subculture between group I and group II was 11.9%, but the rate between group II and group III was 28.6%, which was 2.4 times increased. The time taken between passages during long-term subculture up to 22 passages shows a regressive pattern y = 0.1169x + 2.25 and y = 0.1169x + 2.0. In conclusion, the passage time of SPSCs increased in late passages, and it shows a similar pattern.
Child ; Humans ; Stem Cells ; Tooth ; Tooth, Supernumerary

PURPOSE: The purpose of this study was to evaluate the relationship between the position of mesiodens and its complications. MATERIALS AND METHODS: The subjects for this study consisted of 172 patients with mesiodens. Panoramic radiographs and cross-sectional tomography were taken of all of the subjects. Their clinical records and radiographs were analyzed in order to study the direction and vertical and sagittal position of mesiodens, as well as complications caused by mesiodens. RESULTS: The number of mesiodens was one in 112 cases (65.1%) and two in 60 cases (34.9%). Complications were found in 121 mesiodentes (52.2%), with being median diastema the most frequent. The incidence of complications was high in erupted mesiodens (75.0%), in horizontal mesiodens (89.8%) and in mesiodens located within the arch (75.7%), but was low in mesiodens impacted above apex (29.8%), in normal position (34.4%) and in palatally positioned mesiodens (46.5%). CONCLUSION: It was suggested that the frequency of complications was different according to the vertical position, the direction of the crown and the sagittal position.
Crowns ; Diastema ; Humans ; Incidence ; Tooth, Supernumerary

Ectopic tooth is a common problem reported in clinics. Ectopic tooth generally occurs around its primary position, and long-distance displacement is rare. A case of ectopic maxillary premolar in palatal suture with a supernumerary tooth in the mentum region was reported in this study, and the relevant literature is presented in this paper.
Bicuspid ; Chin ; Humans ; Malocclusion ; Sutures ; Tooth, Supernumerary