Assessment of the alveolar bone support of patients with unilateral cleft lip and palate: A cone-beam computed tomography study

Abstract

Objective: To assess the bone support of the teeth adjacent to a cleft using cone-beam computed tomography (CBCT). Materials and Methods: The CBCT scans of 31 patients with unilateral cleft lip and palate (UCLP) were assessed. The data for teeth neighboring the cleft were compared with those of contralateral noncleft teeth. For each tooth analyzed, the distance between the cementoenamel junction (CEJ) and the bone crest (AC) at the buccal side was measured as was the thickness of the buccal bone level at 0, 1, 2, and 4 mm. Results: The bone thicknesses of the central teeth at the cleft region at the crest and 2 mm apically were statistically significantly thinner than that of the central incisor at a noncleft region. The CEJ-AC distance for central teeth at the cleft region was higher than that for central teeth in a noncleft region. Conclusions: Subjects with UCLP showed reduced bone support at teeth neighboring the cleft compared with controls. This may cause some problems during orthodontic treatment. (Angle Orthod. 2015;85:1003-1008

Evaluation of alveolar bone support around incisors in patients with unilateral cleft lip, alveolus, and palate in late mixed dentition using cone beam computed tomography

“…In this study, an apically located alveolar bone crest was found on the labial, lingual, and distal surfaces of cleft-adjacent U1, consistent with previous studies. 6,8,9 The ABH reduction was defined using the same diagnostic criteria as bone loss in periodontitis, and the ABH frequency was calculated to obtain more clinically relevant results. It was observed that ABH reduction was more likely to appear on the labial and distal surfaces of cleft-adjacent U1, which is likely attributed to the osseous defect and poor oral hygiene in the cleft region.…”

“…4,5 A high prevalence of poor oral hygiene, gingivitis, and gingival recession as well as a high degree of incisor mobility has been extensively documented in clinical studies in patients with cleft, particularly around the cleft site, [5][6][7] Moreover, several imaging studies have revealed decreased bony support in cleft-adjacent teeth. 6,[8][9][10] A lingually and distally inclined cleft-adjacent maxillary central incisor (U1) is common. When changing the tooth inclination, potential periodontal problems and poorly developed osseous structures can increase the risk of irreversible deterioration, such as root resorption, dehiscence, 11 and gingival recession.…”

Evaluation of dehiscence and fenestration in adolescent patients affected by unilateral cleft lip and palate: A retrospective cone beam computed tomography study

“…These values were also similar in noncleft malocclusion patients (20.5% in Class I, 31.5% in Class II, and 28.2% in Class III) and in hyper-, normo-, and hypodivergent patients (36.8%, 24.1%, and 28.6%, respectively). Ercan et al 28 analyzed the bone thickness of centrals and canines in cleft and noncleft regions; they found no significant difference between the cleft and noncleft regions for the canines. However, the facial bone thickness of the maxillary central incisors was thinner at the crest and at 2 mm apical to the crest on the cleft side compared with the noncleft side.…”

“…As it was previously reported that patients affected by UCLP had a hyperdivergent growth pattern, 4,27 it confirms our findings. Ercan et al 28 assessed the alveolar bone support in UCLP patients and showed that the bone supporting the central incisors on the cleft site was significantly thinner than that on the noncleft site. Their results are consistent with those of the present study, in which the dehiscence rate for centrals on the cleft site was significantly higher than that in the control group (43.2% and 13.7%, respectively).…”

Evaluation of temporomandibular fossa and mandibular condyle in adolescent patients affected by bilateral cleft lip and palate using cone beam computed tomography

“…Clefts involving the lip and/or palate are the most common congenital malformations of the craniofacial region (Posnick and Tompson, ; Shapira et al ., ; Celikoglu et al ., ), and the patients affected by clefts usually have complaints of aesthetic, dental, morphologic, and pharyngeal airway problems (Celikoglu et al ., ,b, ; Ercan et al ., ).…”