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- Title
Asymmetric Dental Development Investigated by Cone-Beam Computed Tomography in Patients With Unilateral Cleft Lip and Alveolus.
- Authors
Xiaoyue Zhang; Yang Zhang; Li'an Yang; Gang Shen; Zhenqi Chen
- Abstract
Objective: To investigate apossible delay in dental development of c left-side teeth compared with the contralateral teeth in patients with unilateral cleft lip and a lveolus with or with out cleft palate (UCLA ± CP) and to correlate this delay to d evelo pm en tal stages of the corresp on d in g teeth. Design: Cro ss -s e ctio n al study. Setting: Cleft Lip and Palate Care C en ter of Shanghai Ninth P eo p le 's Hospital, Shanghai, China. Patients: Forty C hinese patients with UCLA ± CP. Main Outcome Measure: Crown height (CH), root length (RL), and full length (FL) of perman ent incisors, canines, p remolars, and first molars were measured using cone-beam computedtomo graphy and compared between cleft and non cleft sides. Discrep an cies in tooth length between sides during different developmentals tages of delayed teeth were also compared. Results: There were no statistically significant differences in tooth length between sides in the mandible, except for RL of lateral incisors and RL and FL of the secon d premolars. In the maxilla, CH, RL and FL of c left-side incisors, as well as RL and FL of cleft-side canines and first p remolars, were all s ig nificantly sho rte r than those on the noncleft side (P < .05). The lateral incisors showed the highest reductions in RL and FL (47% and 29%). Moreover, reduction of RL of c left-side maxillary central incisors was most evident in the early developmental stage (23%) and decre as ed with dental maturation (5%). Conclusions: A symmetric dental development was presented in both jaws but mainly in maxillary ante rio r region. The RL deficiency of c left-side central incisors differed at different developmental stages.
- Subjects
TOOTH anatomy; CHILD development; CLEFT lip; CLEFT palate; COMPARATIVE studies; COMPUTED tomography; PROBABILITY theory; CROSS-sectional method
- Publication
Cleft Palate Craniofacial Journal, 2016, Vol 53, Issue 4, p413
- ISSN
1055-6656
- Publication type
Article
- DOI
10.1597/15-077