Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Fused Teeth”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 55 records · Page 3Linked to original sources
PubMed1992

[The research and analysis on the fused primary teeth regarding to the permantent dental dentition-10 years follow up]

36 cases with unilateral mandibular fused primary teeth have been followed up and analysed for 10 years.The result showed that the fused primary teeth obviously affect the secondary permanent teeth and permanent dental dentition.In this series,there was one secondary permanent tooth lost in all of 19 cases.The secondary permanent tooth was also fused tooth in 3 cases.The length of permanent dental dentition and the width of dentition in front of the second cuspids in the cases with one secondary permanent tooth lost were extremely shorter than that in the cases with secondary permanent teeth.In addition,the mandibular dental dentitions were towards the fused teeth side.Comparing to the synonymic teeth,the mesial and distal steps and the height of secondary permanent teeth of fused primary teeth were no difference from normal side.

Journal Article↗
PubMed2003

[An epidemiological survey on fusion of deciduous teeth of 4286 kindergarten children in Shenyang city].

OBJECTIVE: To clarify the occurrence and distribution of the fusion of deciduous teeth in Shenyang. METHODS: By using cross-sectional study, 4286 children were examined, who aged from 2 to 6 years in 37 kindergartens. RESULTS: Of 4286 children investigated, fusion of the deciduous teeth were detected in 65 children (1.52 percent) without sex predilection. The fused teeth typically occurred unilaterally (68.75 percent), and mainly located in the anterior region, more frequently in the mandibular (91.25 percent) than that in the maxillary arch. 12 cases were bilaterally symmetrical (18.46 percent). Two rare cases were found with fused teeth, one occurred in central incisor, lateral incisor and canine, the other occurred between two molars with two incisors fused in the same side. Fused teeth in two cases had caries. CONCLUSION: The occurrence of the fused teeth may cause some complications. Pediatric dentists should pay attention to the fused teeth occurred in preschool children.

Child↗
PubMed1996

Impaction of a mandibular permanent lateral incisor associated with fused primary teeth: a case report.

Although anesthetic and functional problems created by fused primary teeth are relatively transient, occlusal development should be monitored to prevent abnormal delays in the eruption of the permanent successors. This report describes an unusual case in which horizontal impaction of the permanent mandibular left lateral incisor was associated with fusion of the primary mandibular left lateral incisor and canine. After the fused primary tooth was extracted, the impacted lateral incisor was able to erupt without the aid of orthodontic forces. Early detection eliminated the need for surgical intervention at a later stage.

Child↗
PubMed1997

Prevalence of congenital dental anomalies of the deciduous dentition in Japanese children.

We examined the prevalence of anomalies in deciduous dentition in 2,733 Japanese three-year-old children. The results showed that fused teeth occurs in 4.10%, congenital missing teeth in 2.38%, enamel hypoplasia in 1.50%, peg-shaped teeth in 0.55%, palatal cusps in upper deciduous incisors in 0.37%, supernumerary teeth in 0.07%, and color anomalies in 0.07%. Sixty-nine boys and 43 girls had fused teeth, percentages of 4.88 and 3.26, respectively. This difference was significant. All the fused teeth were located in the anterior region and were more frequent in the mandibular than in the maxillary arch. In the mandibular arch, 50 cases involved the lateral incisor and canine; the central incisor and lateral incisor were fused in 48 instances. There were 30 boys (2.12%) and 35 girls (2.65%) with congenitally missing deciduous teeth. This difference was not significant. Unilateral missing teeth were more frequently observed than bilateral missing ones. The lower lateral deciduous incisor was the most frequently missing tooth. The prevalences of fused teeth and congenital missing teeth were significantly higher in this study than in studies of American and Scandinavian children. These two anomalies are tending to increase in frequency in Japan.

Anodontia↗
PubMed1979

[Interferences with the development of the jaws and teeth in mixed dentition].

On the basis of results from animal experiments, the authors emphasize a series of factors interfering considerably with tooth eruption. It is dealt with tooth eruption disorders and dental malformations due to premature loss of teeth, fused deciduous teeth, certain dystrophies, submersion of deciduous teeth, dysembryoplasias, and rickets.

Dentition, Mixed↗
PubMed2006

Esthetic management of fused carious teeth: a case report.

UNLABELLED: A rare case of a carious supernumerary tooth fused to the labial surface of a maxillary right central incisor is reported. Root canal therapy on the maxillary right central incisor was performed owing to the pulpal communication between the supernumerary tooth and the maxillary right central incisor after removing the carious supernumerary tooth structure. The defect was then restored with anterior resin composite and the esthetics reestablished. CLINICAL SIGNIFICANCE: Clinical significance lies in identifying a rare case of fusion of supernumerary tooth to a permanent tooth and treating the anomaly in the most conservative way.

Adult↗
PubMed1979

Fusion of teeth.

Three case reports of fusion are presented. Clinical problems relating to fusion may be unacceptable appearance or alignment of teeth, and periodontal conditions. It is suggested that all succedaneous teeth that are joined or fused together by dentin be referred to as fused teeth because of the frequent difficulty in differentiating fusion and gemination in the adult dentition.

Adult↗
PubMedDate not supplied

Considerations and differences in the treatment of a fused tooth.

Dental malformations relating to bigeminism, fused teeth, etc., have a prevalence of 0.5-5%, depending on geographic, racial or genetic factors. This in turn may influence the treatment to be provided in each case. Anomalies in the shape, size and number of teeth are more common in the so-called pediatric genetic syndromes, many of which are associated to mental retardation. The present study describes two clinical cases of similar dental fusion involving a central incisor and comprising different and individualized treatment plans due to the important differences in the characteristics of each patient. The first case corresponded to a healthy 9-year-old boy with a fused upper central incisor and a supernumerary incisor in the second quadrant. The fused tooth presented two independent and converging roots with a single pulp chamber. Endodontic treatment was provided, with dental sectioning and composite reconstruction of the crown. Orthodontic management was reserved for a second stage. The second patient was a 27-year-old male with severe mental retardation of uncertain origin, gingival hyperplasia, a large bilobular upper central incisor, and a total lack of oral hygiene. Treatment in this case was limited to surgical resolution of the periodontal problem and the introduction of an exhaustive prevention program involving instructions for oral hygiene (with implication of the parents and care takers). In conclusion, the development of a management plan in these two cases of fused teeth required due consideration of the degree of patient cooperation, which was severely limited in one case -- thereby causing treatment to differ greatly from one individual to another.

Adult↗
PubMed2006

Endodontic treatment of a supernumerary tooth fused to a mandibular second molar: a case report.

Since abnormal tooth morphology can predispose to caries and periodontal disease, careful management of fused teeth is essential. In this paper we report a rare case of a fused molar and supernumerary tooth and describe its management. Caries was removed from the tooth complex under local anesthesia. The pulp chamber of the supernumerary tooth was exposed without involvement of second molar pulp chamber. The root canal of the supernumerary tooth was prepared using the step back technique and copious irrigation with 2.6% sodium hypochlorite. Obturation using the lateral condensation technique with gutta-percha and AH26 sealer was subsequently performed and final restoration was accomplished with composite resin. Nine months after the treatment, no clinical or radiographic concern is apparent, and the second molar tooth has remained vital.

Adult↗
PubMed1989

A structural and ultrastructural study of a fused tooth.

A fused mandibular lateral incisor and canine tooth were examined histologically at various levels. A composite reconstruction of the fused mass was compiled and the vascular supply indicated. Light microscopic examination revealed a common pulp chamber and discrete root canals. In the interstitium between the root canals an irregular type of secondary dentin was found. This was characterized by numerous vascular spaces and was termed "vasodentin." A notable feature of the histological examination was the paucity of odontoblasts in the interstitial root canal wall of the minor root canal, while the odontoblast layer was continuous throughout the remainder of the tooth. A theory is presented for the formation of fused teeth.

Child↗
PubMed2003

[Dental tours de force 3. Treatment of a fused tooth].

This article reports the treatment of a maxillary central incisor, which appeared to be a fused tooth with two separate immature roots. After hemisection, the mesial part of the tooth was removed and the remaining part was treated by a direct pulp capping with a flowable dentin-bonded composite. The central diastema was closed orthodontically. Follow-up after six and eighteen months revealed a healthy pulp and an undisturbed root formation. Finally, a review of the literature on the aetiology and treatment of fused teeth is presented.

Child↗
PubMedDate not supplied

Bilateral fusion of the mandibular primary incisors: report of case.

Fusion is a common dental finding. However, bilateral mandibular fusion of the primary incisors is a rare event, occurring with a prevalence of less than 0.02 percent. When all four permanent successors are present, this event becomes rarer still. Once fusion has been diagnosed, careful monitoring is required, since problems with exfoliation can occur, along with caries formation in the groove of the incompletely fused teeth.

Child, Preschool↗
PubMed2005

[The combination of a fused tooth and a supernumerary central incisor: a possible treatment plan].

An 8-year old boy was referred to the orthodontic department because of a fused tooth. The clinical and radiological examination showed that - besides the double tooth at the region of the 21 - there was a normal tooth 22 in eruption as well. Moreover a still impacted supernumerary tooth was present in the right upper front region. The treatment included the extraction of the fused tooth and an autotransplantation of the supernumerary tooth to the extraction site of the fused tooth. During the follow-up period the pulp showed a progressive obliteration starting at the crown level with a conservation of the vitality. Apexification of the root of the transplanted tooth proceeded successfully. Furthermore a review of the literature is given in this article on the aetiology and treatment of fused teeth and on the application of autotransplantation.

Child↗
PubMed2005

Comprehensive therapy of a fusion between a mandibular lateral incisor and supernumerary tooth: case report.

The term fusion is used to define a developmental anomaly characterised by the union of two adjacent teeth. In the case reported here, clinical and radiographic examinations suggested a unilateral fusion between the mandibular left permanent incisor and a super-numerary tooth. Radiographs showed that the fused teeth had two distinct pulp chambers and canals. A diagnosis of chronic periapical abscess of the supernumerary tooth was made. Before root canal therapy, a periodontal surgical procedure was performed to section the central incisor and its fused supernumerary. Also, odontoplasty was performed on the roots, to establish an anatomy consistent with a normal central incisor. Later, the chronic apical abscess on the supernumerary tooth was instrumented chemo-mechanically, root canal filling was performed and an anterior composite resin restoration was placed. The patient was evaluated for one year after root canal therapy. The tooth was asymptomatic, not exhibiting any pathological root resorption or alveolar resorption, and the anterior composite restoration was intact. Instead of extracting the supernumerary tooth, the application of endodontic, periodontal, and restorative procedures proved to be an alternative treatment.

Child↗