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Results for “Tooth, Supernumerary”

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PubMed1982

[Polyodontia and abnormal forms of teeth in dogs (author's transl)].

Polyodontia was observed in forty-seven (13 per cent) out of 373 dogs studied. These forty-seven dogs with polyodontia included sixteen Boxers. The supernumerary tooth was situated in the proximity of the first premolar in the maxilla in thirty-two dogs. The following abnormal forms were observed among the teeth of the dogs: dichotomy of an incisor in a Fox Terrier and a Great Dane, a pair of geminate teeth at the site of the first mandibular premolar in a Rottweiler and a fused premolar near the first maxillary premolar in a Boxer. The possible pathogenesis of polyodontia and abnormal tooth forms is discussed.

Animals↗

PubMed1998

Oral manifestations of Ellis-van Creveld syndrome: report of two siblings with unusual dental anomalies.

Ellis-van Creveld syndrome (EvC), also called chondroectodermal dysplasia, is a rare occurrence inherited as an autosomal recessive disease. Despite the fact that oral manifestations play an important role in the diagnosis criteria for EvC, few detailed reports have been published in the dental literature. This articles presents two siblings with EvC, a boy aged 9 years and a girl aged 7 1/2 years, a product of unaffected first cousin parents. The patients manifests: chondrodysplasia of tubular bones resulting in disproportionate dwarfism, polydactyly and syndactyly of hands and feet, severe dystrophic nails, multiple broad labial frenula with abnormal attachments, congenital missing incisors, anomalous teeth, bilateral partial clefts of the alveolar bone, and malocclusion. Other features noted in either cases are: congenital heart defect, median notch of the upper lip, shovel-shaped incisors and taurodontism. Of the unusual dental findings observed in our patients are talon cusp, reduced crown size, supernumerary tooth, and early eruption of teeth. Because half of the cases with EvC have cardiac malformation, dental treatment must be performed under prophylactic antibiotic coverage. Dentists play an important role in early diagnosis and control of dental problem of this condition.

Anodontia↗

PubMed2000

Treatment of an "ankylosed" upper central incisor in the mixed dentition.

A ten-year-old boy presented with an unerupted upper right central incisor (UR1). An OPG radiograph showed a supernumerary tooth lying over its crown, preventing its eruption. Standard orthodontic treatment involving removal of the supernumerary tooth, attaching a gold chain to the UR1 and treatment with fixed orthodontic appliances failed to bring the tooth down, until it was found that tough fibrous gingival tissue entwined in the gold chain had "ankylosed" the tooth. Once this tissue had been removed and the wound packed open, the tooth was brought down successfully into occlusion.

Ankylosis↗

PubMed2001

The management of supernumerary teeth in childhood--a retrospective study of practice in Bristol Dental Hospital, England and Westmead Dental Hospital, Sydney, Australia.

This study compared the treatment provided for patients with supernumerary teeth in Bristol Dental Hospital with those in Westmead Dental Hospital, Sydney, Australia. The records of 63 children referred for removal of a supernumerary tooth in Bristol and 96 children in Westmead were examined, involving a total of 215 supernumerary teeth. Differences in the treatment provided for these patients were found not only between the two centres but also within one centre. There appeared to be no standardised route by which these patients were seen and therefore no standardised pattern of treatment. Contact with all UK Dental Schools indicated that no formal treatment protocol existed for the treatment of children with supernumerary teeth. In addition, a permanent incisor associated with a conical supernumerary tooth was twice as likely to erupt spontaneously as one associated with a supernumerary of tuberculate form. The location of the supernumerary tooth also influenced the likelihood of spontaneous eruption of the associated permanent incisor. There is a need for a prospective randomised controlled trial in the future in order to develop a formal treatment protocol for the management of patients with supernumerary teeth. A multicentre trial is under development.

Adolescent↗

PubMed1977

Supernumerary nasal tooth.

A tooth presenting in the nasal cavity is an unusual phenomenon. Supernumerary teeth usually occur in the upper incisor area. Other locations may be the maxillary third molar and the mandibular bicuspid areas. Nasal teeth are a rare form of supernumerary teeth. They may be asymptomatic or may present with nasal obstruction and infection. They may be removed through a nasal approach.

Adult↗

PubMed2002

Supernumerary teeth in the primary dentition: a report of two cases.

Supernumerary teeth occur frequently in the permanent dentition, but they are rare in the primary dentition. Mesiodens is a supernumerary tooth with a cone shaped crown and a short root. The supernumerary tooth which bears resemblance to the tooth with which it is associated is called a supplemental tooth. The etiology of supernumerary teeth is still unknown and not well understood. Radiographic examination of pre-school children is essential for their diagnosis. Early removal of these teeth is required so that complications such as delay in eruption of permanent teeth, crowding, diastema, rotations and certain pathologic conditions can be averted.

Child, Preschool↗

PubMedDate not supplied

Unerupted second primary mandibular molar positioned inferior to the second premolar: case report.

This report is a clinical case of a 7-year-old child who presented right impacted second primary mandibular molar. This tooth was positioned inferior to the second premolar successor and a supernumerary tooth superior to the second premolar. Clinical examination did not reveal systemic diseases ot trauma in the facial region. Treatment consisted of the extraction of the impacted second primary molar and the supernumerary tooth. Periodic examination was indicated for follow-up.

Bicuspid↗

PubMed2002

Multidisciplinary evaluation and clinical management of mesiodens.

Supernumerary teeth are a disorder of odontogenesis relatively common in the oral cavity and characterized by an excess number of teeth. The term mesiodens is used to refer to an unerupted supernumerary tooth in the central region of the premaxilla between the two central incisors. The complications associated with mesiodens include: lack of eruption of permanent teeth, the deviation of the eruption path, rotations, retention, root re-absorption and pulp necrosis with loss of vitality, and diastema. Early detection of mesiodens is most important if such complications are to be avoided. This report describes the treatment of a maxillary central incisor impacted by a mesiodens. The case initially required only surgical treatment, to remove the supernumerary tooth. Successively, orthodontic therapy was done to bring into position the left permanent central incisor, which erupted physiologically, but rotated 90 degrees around along its long axis.

Child↗

PubMed2004

Surgical removal of supernumerary teeth and the fate of incisor eruption.

AIM: The aims of this study were firstly to determine the fate of unerupted permanent maxillary incisor teeth following supernumerary tooth removal and secondly to make recommendations regarding the management of such incisor teeth following supernumerary tooth extraction. STUDY DESIGN: This is a retrospective study. METHODS: Records of children attending the Departments of Paediatric Dentistry, Edinburgh Dental Institute, Lothian Primary Care NHS Trust and Dundee Dental Hospital, Tayside University Hospitals Trust between 1995 and 2002 were examined with regard to non-eruption of one or both maxillary central incisors in association with supernumerary teeth requiring surgical removal. Subsequent permanent maxillary incisor eruption was recorded and in those cases of incisor non-eruption, further surgical interventions were noted. RESULTS: In all 118 sets of patient records were included in the study (87 males, 31 females) with a mean age at presentation of 8.8 years (range 5.3-11.6 years). Failure of eruption of the associated permanent maxillary central incisor teeth occurred in 27% of cases, in relation to both conical and tuberculate supernumerary teeth. All tuberculate supernumerary teeth associated with non-eruption cases were palatally placed and 59% were adjacent to maxillary incisors with near complete apex formation. To facilitate incisor eruption in these cases, 41% required surgical exposure of the non-erupted incisor tooth and 59% required surgical exposure with bonding of an orthodontic bracket and gold chain for orthodontic traction. CONCLUSION: Non-erupted permanent maxillary incisor teeth with near complete apical formation, associated with palatally placed, tuberculate-shaped supernumerary teeth, may benefit from having an orthodontic bracket and gold chain placed at the same time as the surgical procedure to remove the supernumerary tooth to facilitate future orthodontic traction.

Child↗

PubMed1978

Numerical identification of teeth in Japanese shrew-moles, Urotrichus talpoides and Dymecodon pilirostris.

Numerical determination of the teeth of two species of Japanese shrew moles, Urotrichus talpoides and Dymecodon pilirostris (Talpidae, Insectivora), was based on the position of the premaxillo-maxillary suture, comparison of the dentitions of the two species with those of their relatives and the supernumerary tooth. The premaxillo-maxillary suture is situated between the fifth and sixth tooth anterior to the M1, and the fifth tooth anterior to the M1 was determined to be C both in the two species. The supernumerary tooth which appears in the gap between the third and fourth anterior to the M1 of the lower jaw of Urotrichus talpoides was considered as a relic of pdl which seems to have been lost relatively recently in the evolution of this species. It was also shown that the first premolar of the upper jaw of the Urotrichus talpoides and the first premolars of the Dymecodon pilirostris are dihyodont. Retention of the dihyodont first premolars in these species seems to be a primitive character and is significant in determining the phylogenetical positions of these species.

Animals↗

PubMed1992

Supernumerary teeth causing delayed eruption--a retrospective study.

The majority of previous studies that have looked at the management of delayed eruption secondary to a supernumerary tooth advocate exposure of the unerupted tooth at the time of supernumerary removal. However, accepted UK orthodontic practice is to extract the supernumerary and provide sufficient space for the unerupted tooth to erupt spontaneously. The aim of this retrospective study was to evaluate the management and outcome for 96 patients who had been referred to Newcastle Dental Hospital between 1976 and 1988 who between them had 120 teeth with delayed eruption secondary to a supernumerary tooth.

Child↗

PubMed1990

[Blood pressure changes in children during minor oral surgery].

The purpose of this study was to evaluate the influence of minor surgery conducted in the oral cavities of children. Changes in blood pressure and pulse during minor surgery were measured using a Pulse-Wave Korotokoff Sound Record Meter GP-303S (PARAMA). The subjects consisted of 28 children (15 boys and 13 girls) who underwent minor surgery at the pediatric dental clinic of Iwate Medical University. An examination of 16 of the 28 children to determine the relationship between their physique, personality, and blood pressure was made. The following results were obtained: 1) The maximum blood pressure formed a peak at the time of the impacted supernumerary teeth extraction. This was more conspicuous in boys than in girls. The pulse rose to the highest values with the infiltration of the anesthesia, the incision, and stripping. However, no significant values based on sex difference were demonstrated. 2) The maximum blood pressure changed more intensely during surgery in boys than in girls. This was distinctly observed during extraction of the impacted supernumerary tooth. 3) Both the maximum blood pressure and pulse increased with the progress of the surgery. After the surgery, it returned nearly to the presurgical level. With extraction of a supernumerary tooth and marsupialization, the return of the blood pressure to the preoperative level was more delayed in boys than in girls. 4. The changes in blood pressure and pulse seemed to be mostly induced by mental disquietude and stress such as anxiety and fear of surgery. 5. The physique and personality were related to the changes in blood pressure and pulse during minor surgery in the oral cavity.

Anesthesia, Dental↗

PubMed1982

Ectopic soft-tissue mesiodens.

The mesiodens is the most common supernumerary tooth. It can be found in both the erupted and the impacted states. A case of a developing mesiodens located entirely in soft tissue is described. The lesion presented as a pedunculated palatal mass. No case of soft-tissue mesiodens has been previously reported. A theory of origin for this supernumerary tooth is proposed.

Child, Preschool↗

PubMedDate not supplied

Mesiodens: a clinical and radiographic study.

PURPOSE: The term 'mesiodens' refers to a supernumerary tooth present in the midline of the maxilla between the two central incisors. This study seeks to investigate the characteristics of mesiodens among children in Korea. METHODS: The study population consisted of 40 children whose ages ranged from 4 to-26-years. The characteristics of mesiodens were obtained from radiographs and clinical examination results, and were confirmed by surgical intervention. RESULTS: Results showed that males were affected approximately 4 times as frequendy as females. Twenty-five percent of the patients had more than 1 supernumerary tooth. About 66% of the mesiodens were conical in shape and about 52% of the mesiodens were in the upward position. The age and sex distribution, number of mesiodens per patient, shape, direction, size, and effect on permanent maxillary incisors are also presented in this study. CONCLUSIONS: The incidence of mesiodens has been estimated at 0.15% to 1% of the population. It occurs more frequently in boys than in girls, with the ratio being approximately 2:1. In this study, a male:female ratio of 4:1 for the prevalence for mesiodens was found. Ten (25%) out of the 40 patients had 2 mesiodens.

Adolescent↗

PubMed2006

Concrescence of a mandibular third molar and a supernumerary fourth molar: report of a rare case.

Concrescence represents a rare developmental anomaly in which two fully formed teeth are joined along the root surfaces by cementum. Maxillary molars are the teeth most frequently involved, especially a third molar and a supernumerary tooth. Very few cases have been reported about the concrescence of a third molar and a supernumerary tooth. According to our current knowledge, this case report is the first in the literature in which concrescence is observed between a third molar and a supernumerary fourth molar in the mandible.

Adult↗

PubMed2006

Occulocerebrocutaneous syndrome: a case report.

Occulocerebrocutaneous syndrome is a rare condition characterized by orbital cysts and skin tags. The presence of supernumerary teeth has not previously been associated with this syndrome. A primary supernumerary tooth with a permanent supernumerary successor was found in this case. This highlights the importance of very careful examination when assessing children with syndromes.

Abnormalities, Multiple↗

PubMed1985

A fused central incisor. Periodontal considerations in comprehensive treatment.

This report details the treatment of a permanent central incisor fused to a supernumerary tooth. The level of fusion was first determined by radiographs, but surgical visibility indicated a more extensive fusion. The two roots were separated, and the supernumerary tooth was removed. At 10 weeks postoperatively, orthodontic treatment was instituted, bringing the retained tooth through the healing socket left by the supernumerary, and into contact with the interdental septum. After endodontic treatment and splinting, a periodontal re-entry procedure was necessitated by the persistence of inflammation caused by incomplete removal of the furcation-like area between the fused teeth. The improved periodontal prognosis of this case at 1-year follow-up can be attributed to careful postsurgical evaluation and subsequent removal of this plaque-retentive area.

Child↗

PubMed1981

Unerupted incisors.

Fifty consecutive cases presenting with unerupted maxillary incisors at orthodontic clinics were recorded and progress of the unerupted tooth followed up over a 4-year period following the exposure of the unerupted tooth (including removal of supernumerary tooth, etc., if present). The occlusal level, rotation, tilting, and general appearance were assessed at the conclusion of the investigation and the results are presented in this report. The earlier the removal of the causative factor preventing eruption of the incisor the better is the prognosis, and it is suggested that all teeth that have not erupted 6 months after the normal eruption date should be subject to radiological examination to ascertain any possible cause for the delayed eruption.

Age Factors↗