Hypo-hyperdontia in an Irish population.
The records of 3,056 orthodontic patients, for whom adequate orthopantomogram radiographs were available, were examined to assess the prevalence of hypo-hyperdontia. The level of 0.45% was in line with previous studies. However, only 131 patients were eligible to be assessed for congenital absence of third molars. It may be that if a more mature sample were examined, the actual prevalence might be higher than the quoted figure.
O'Dowling
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D000293:Adolescent; D000848:Anodontia / Q000150:complications* / Q000453:epidemiology; D002648:Child; D005260:Female; D006801:Humans; D007494:Ireland / Q000453:epidemiology; D008297:Male; D014096:Tooth, Supernumerary / Q000150:complications* / Q000453:epidemiology