Dental anomalies of number in the permanent dentition of patients with bilateral cleft lip: radiographic study.
OBJECTIVE
To radiographically evaluate the prevalence of dental anomalies in patients with complete and incomplete bilateral cleft lip, comparing the prevalence of anomalies between genders and cleft types.


METHODS
Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil.


METHODS
150 randomly selected panoramic radiographs of individuals with complete or incomplete bilateral cleft lip; patient age 12 to 25 years (mean age 13.8 years).


RESULTS
Data were statistically analyzed to compare the possible association between presence of hypodontia and supernumerary teeth, according to gender and cleft type. Among the 150 patients evaluated, 80 (53.3%) were male and 70 (46.6%) were female. Since no statistically significant difference was found in hypodontia between genders, data were grouped for analysis, revealing prevalence of 31.6% for complete clefts and 26.8% for incomplete clefts. Concerning supernumerary teeth, the prevalence for the male patients was 28.2% for complete cleft lip and 29.2% for incomplete cleft lip. For female patients, the prevalence was significantly (p = .006) lower for complete cleft lip (17.5%) than for incomplete cleft lip (46.6%).


CONCLUSIONS
The present results suggest that the prevalence of hypodontia was higher in patients with complete cleft lip, and the prevalence of supernumerary teeth was higher in patients with incomplete cleft lip, in agreement with previous studies.
da Silva
Ana Paula Ramos Bernardes
AP
Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil.
Costa
Beatriz
B
de Carvalho Carrara
Cleide Felício
CF
D000293:Adolescent; D000328:Adult; D000848:Anodontia / Q000453:epidemiology; D001938:Brazil / Q000453:epidemiology; D002648:Child; D002971:Cleft Lip / Q000000981:diagnostic imaging / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D011862:Radiography, Panoramic / Q000706:statistics & numerical data; D012189:Retrospective Studies; D012737:Sex Factors; D014071:Tooth Abnormalities / Q000000981:diagnostic imaging / Q000453:epidemiology*; D014096:Tooth, Supernumerary / Q000453:epidemiology; D055815:Young Adult