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Results for “Tooth, Deciduous”

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At least 631 records · Page 35Linked to original sources
PubMed1986

A retrospective study of double teeth in the primary dentition.

The study was carried out on 20 subjects with evidence of double teeth, which included gemination and fusion, in the primary dentition. The age of the subjects ranged from 2 1/2 to 9 years. The results of the study indicated that double teeth occurred more frequently in the males and that fusion was much more prevalent than gemination. The frequency of occurrence in the right and left side of the jaws was comparable. About 79 percent of the occurrence was seen in the mandibular arch. A high proportion of fusion was found to involve the lateral incisors and canines. In 50 percent of the occurrence, hypodontia of the permanent dentition was observed, all of which involved the lateral incisors. The clinical significance of the condition was also discussed.

Child↗
PubMedDate not supplied

Hyperdontia in children below four years of age: a radiographic study.

Sixty-six children (forty-one boys and twenty-five girls) were evaluated for differences in characteristics of premaxillary hyperdontia between the primary and permanent dentitions. The study population had forty-five supernumerary teeth in their primary dentitions and fifty supernumerary teeth in their permanent dentitions. Eighty percent of the primary supernumerary teeth were located in the lateral incisor regions, in proper alignment within the dental arch. Sixty-two percent of the supernumerary teeth in the permanent dentitions were situated in the central incisor regions; 90 percent were outside the dental arch, mostly palatal; and 42 percent were inverted. Seventy-three percent of the supernumerary teeth in the primary dentitions had erupted. Twin tooth formation occurred in twenty-eight patients, the majority in the primary dentition; but in eleven children, both dentitions were involved. Interference with the normal dentition occurred most often in the permanent dentition. Children with primary supernumeraries exhibit a greater chance of hyperdontia in the permanent dentition than do others.

Child, Preschool↗