A combination of kissing molars, maxillary bilateral supernumerary teeth and macrodontia: a rare case report

Supernumerary teeth (ST) is defined as an additional number of teeth compared to the normal dental formula. The prevalence rate of ST varies from 0.5 to 3.8% in the permanent dentition. When ST located distal to the third molar is acclaimed as distomolar. Moreover, kissing molar is an extremely scar...

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Bibliographic Details
Published in:BMC oral health 2020-04, Vol.20 (1), p.112-112, Article 112
Main Authors: Lao, An, Bi, Siyuan, Cheng, Haoran, Lai, Tiehan, Huang, Shengbin, Zhao, Shufan
Format: Article
Language:English
Subjects:
Bilateral distomolars
Case Report
Case reports
Dental roots
Dentistry
Dentition
Diagnosis
Etiology
Heredity
Impacted tooth
Kissing molars
Macrodontia
Mandible
Maxilla
Molars
Pain
Supernumerary
Supernumerary teeth
Teeth
Volumetric analysis
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Summary:Supernumerary teeth (ST) is defined as an additional number of teeth compared to the normal dental formula. The prevalence rate of ST varies from 0.5 to 3.8% in the permanent dentition. When ST located distal to the third molar is acclaimed as distomolar. Moreover, kissing molar is an extremely scarce condition of distomolars, pointed in the opposite direction in a single follicular space. Meanwhile, macrodontia is also a rare shape anomaly characterized by a large crown and tapering root. A 22-year-old Chinese man presented a combination of kissing molars, maxillary bilateral supernumerary teeth and macrodontia. Radiographically, two maxillary bilateral distomolars located at the buccal side of adjacent third molars. One mandibular distomolar with the adjacent third molar was contacted by occlusal surfaces while roots were pointed oppositely, which could be diagnosed as KM. Furthermore, the left mandibular third molar can be inferred to be a macrodontia, characterized by a large crown and tapering root. After a thorough investigation, we excluded the possibilities of systemic diseases and genetic inheritance. However, the etiology of this rare combination deserves to be further explored. The combination of kissing molars, maxillary bilateral supernumerary teeth and macrodontia is very rare, especially presented in the patient with no syndromes. As there were no complications with these conditions, long-term observation has been recommended for the patient. In addition, the true etiology need a further exploration.
ISSN:1472-6831
1472-6831
DOI:10.1186/s12903-020-01092-9