INTRODUCTION: A review of the literature relating to
supernumerary teeth is presented along with a survey of 152
cases.
METHODS: The study population consisted of 152 children
who visited the department of Paediatric Dentistry at the
Jordan University Hospital. Patients ranged in age
from 5 to 15 years. Supernumeraries were detected by clinical
examination and radiographs.
RESULTS: Males were affected more than females with a sex
ratio of 2.2 : 1. Seventy-seven percent of the patients
had one supernumerary tooth, 18.4% had double teeth, and 4.6%
had three or more supernumeraries. Ninety percent of the
supernumerary teeth occurred in the premaxilla, of which 92.8%
were in the central incisor region and of these latter 25% were
located in the midline. The other 10.4% of the supernumeraries
were located in the premolar, canine, molar, and lower central
incisor regions. Two cases were of non-syndrome supernumerary
teeth. Seventy-five percent of the supernumeraries were conical,
83.1% were in the normal vertical position and 26.5% were
erupted. Conical-shaped supernumerary teeth had a significantly
higher rate of eruption compared to the tuberculate type.
[References: 58]
Institution
The University of Jordan, Faculty of Density,
Department of Paediatric Dentistry, Amman. lamisr@ju.edu.jo
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