Prevalence of Dental Anomalies in Patients With Cleft Lip and Palate

Abstract

The aim of the present study was to investigate the prevalence of dental anomalies in a group of patients with cleft lip and palate (CL/P) in the northeast of Iran. Ninety-one patients referring to the Cleft Lip and Palate Clinic of Mashhad Dental School were enrolled and classified into right CL/P, left CL/P, and bilateral CL/P groups. Photographs, dental casts, and panoramic and periapical radiographs were retrieved, and dental anomalies were recorded. χ test was used to analyze the frequency of dental anomalies according to type of cleft and sex. Missing maxillary lateral incisors was the most frequent dental anomaly, which was slightly higher in the bilateral group (61.1%). There were significantly more cases of missing lateral incisors outside the cleft area in right CL/P (P = 0.015). Peg lateral incisors were observed in 33.3% of bilateral CL/P compared with 28% of right and 23.3% of left unilateral cases. The sample presented rotations of central incisors in the cleft area in 33.3% of bilateral clefts. In unilateral clefts, it occurred more frequently in the right side (48%). Sexual dimorphism appeared only for maxillary central incisor rotation in the cleft area, which showed significantly greater frequency in females (P = 0.025). Transposition of maxillary canine and first premolars was found in 5.5% of bilateral, 8% of right, and 3.3% of left unilateral clefts. The prevalence of dental anomalies in the studied sample seems to be higher than that reported in the normal population. More anomalies were observed at the cleft side. The frequency of most anomalies was not significantly different between the 2 sexes.

Permanent maxillary central incisor and first molar rotations in the mixed dentition in repaired complete unilateral cleft lip and palate and their relationship with absence of teeth in their vicinity

“…The findings in this study were similar to those of Jabbari et al 8 and Chang et al, 9 and the frequency of the cleft side maxillary central incisor rotation found was in agreement with the findings of Pegelow et al 6 but were greater than that reported by Lai et al, 5 Tortora et al, 4 and Eslami et al 7 (Table 1). In the current study, the most frequent rotational pattern of cleft side central incisors was distolabial (77.14%), with the palatal surface rotated toward the cleft and a large magnitude of rotation (121.098 6 24.508).…”

“…The literature describing characteristics of rotation of the maxillary central incisors in repaired complete unilateral cleft lip and palate (UCLP) is sparse. [1][2][3][4][5][6][7][8][9] While there has recently been an increased emphasis on evaluating cleft-side maxillary central incisor rotations in UCLP, most studies describe incisor rotation qualitatively, with a wide range in frequency from 42.7% 4 to 83.6%, 6 and the magnitude of rotation has rarely been described ( Table 1). The pattern and magnitude of rotation of permanent maxillary first molars has largely been ignored in the published literature.…”

Dental anomalies inside the cleft region in individuals with nonsyndromic cleft lip with or without cleft palate

“…Other studies reported giro version in anterosuperior area, though without association with the cleft type. ( 21 , 22 ).…”

Association between tooth size and interarch relationships in children with operated complete unilateral cleft lip and palate

“…Certain key genetic disturbances have been implicated in both dental anomalies and clefting, suggesting a shared genetic etiology in some cases [ 2 , 3 ]. Among many dental anomalies reported in CLP patients, small tooth size is frequently reported [ 3 - 6 ]. Besides reduced crown size, cleft patients demonstrated simplified crown morphology and malformed teeth [ 3 ].…”