Dehiscence and fenestration in patients with different vertical growth patterns assessed with cone-beam computed tomography

Abstract

The null hypothesis was rejected. Although the prevalence of fenestrations was not different, significant differences for dehiscences were found in patients with different vertical growth patterns.

Cone beam computed tomography evaluation of distance from cementoenamel junction to alveolar crest before and after nonextraction orthodontic treatment

“…1 Increased distances from the cementoenamel junction to the bone crest may be indicative of alveolar bone dehiscence, [2][3][4] and Persson et al 5 and Baysal et al 6 adopted this classification when this distance is greater than 2 mm. Alveolar bone dehiscence that results from orthodontic movement may be either not clinically evident or clearly identified as extensive gingival recession that compromises esthetics and tooth sensitivity.…”

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

“…In a study 22 that analyzed these defects in different sagittal malocclusion groups, the incidences of fenestrations for maxillary central incisors were 23.1% in Class I, 18.5% in Class II, and 21.1% in Class III malocclusion patients. In another study 9 that evaluated these defects according to vertical growth patterns, the presence of fenestrations for the same tooth were similar in hyperdivergent (21.1%) and normodivergent (22.4%) groups. However, the rate was lower in the hypodivergent group (5.7%).…”

“…25 The Class II group had a greater prevalence of fenestrations, and dehiscences were seen with a high frequency in the mandibular incisors of all groups. In another study, 9 these bony defects were examined in terms of vertical growth patterns using CBCT; the prevalence of dehiscences was higher in the hyperdivergent group than in the hypodivergent group. As it was previously reported that patients affected by UCLP had a hyperdivergent growth pattern, 4,27 it confirms our findings.…”

“…Although Sun et al 12 reported that this method might overestimate the actual measurements, the technique was reported to have the highest sensitivity and diagnostic accuracy for detecting various periodontal defects. 21 A few studies 9,25,26 have analyzed dehiscences and fenestrations by CBCT in different malocclusion groups and normal populations. However, no data were available for patients with clefts.…”

“…CBCT allows the visualization of these defects with more accurate three-dimensional (3-D) images. 9 Periodontal health in the cleft region is likely to deteriorate over time because of the poorly developed structures and additive trauma to the periodontium during orthodontic treatment. 10 Salvi et al 2 demonstrated that subjects with orofacial clefts were at high risk for periodontal disease progression, and alveolar cleft sites suffered more periodontal tissue destruction than did control sites.…”