What Are Supernumerary Teeth?

Multiple teeth, refers to multiple teeth, multiple teeth may occur in any position of the human body, but they have obvious predisposition.

Multiple teeth

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Multiple teeth, refers to multiple teeth, multiple teeth may occur in any position of the human body, but they have obvious predisposition.

Chinese name

Multiple teeth

Foreign name

no

Disease treatment

Extra teeth should be removed as soon as possible

Clinical manifestation

See text

The size and shape of a supernumerary tooth may be very similar to the teeth in the molars, premolars, or anterior teeth groups it belongs to, or it may be very different from the shape of adjacent teeth. According to the literature, the incidence of median multiple teeth in the Caucasian population is 0.15% to 1.0%, and the male to female ratio is 2: 1.

Some scholars have suggested that the multidental tooth is developed from the third tooth bud that is differentiated from the dental plate of the adjacent permanent tooth bud, or it may originate from the division of the permanent tooth bud itself. The latter is speculated to be slightly far-fetched, as adjacent permanent teeth behave normally in all respects. In some cases, the occurrence of multiple teeth appears to be genetically predisposed. Reports in the literature found that the median multiple tooth has an autosomal dominant inheritance, but sometimes it is not apparent.

Position of multiple teeth: Multiple teeth may occur at any tooth position, but they have obvious predispositions: the most common are the "mesiodens" of the upper jaw, followed by the upper jaw. Four molars, paramolar, maxillary premolars, and maxillary incisors. Occasionally, multiple teeth can be seen in the mandibular incisors and maxillary premolars. Interesting and unexplainable is that about 90% of the overgrown teeth occur in the upper jaw. The primary teeth of the deciduous teeth are relatively rare. Among them, the best teeth are the upper incisors, and there are also reports of upper and lower primary canine teeth.

Morphology of multiple teeth: "mesiodens", located between the two upper central incisors, occur unilaterally or symmetrically. Has sprouted or ambush impacted, or even long. The crown of the "median multiple tooth" is usually a small cone with a short root.

The maxillary fourth molar is located in the middle of the third molar. It is a small, undeveloped tooth, but it may be the same size as a normal tooth. Occasionally, the fourth mandibular molar is also visible. Lateral molars are located on the buccal or lingual side of the maxillary molars, or adjacent to the maxillary first and second molars, or the second and third molars, and have a small shape and incomplete development.

Multiple teeth can sprout or be buried in the bone: Because multiple teeth increase the amount of teeth in the dental arch, it often causes dislocation of the adjacent teeth or prevents sprouting. Many teeth in multiple multiple teeth may be impacted, and most of them are characteristic of cleidocranial dysostosis.

Extra teeth should be removed as soon as possible. If necessary, assist with orthotics.