title: Dehiscence and fenestration in patients with different vertical growth patterns assessed with cone-beam computed tomography.
abstract: OBJECTIVE
  To test the null hypothesis that the presence of alveolar defects (dehiscence and fenestration) was not different among patients with different vertical growth patterns.
  
  
  METHODS
  A total of 1872 teeth in 26 hyper-divergent (mean age: 24.4 ± 4.8 years), 27 hypo-divergent (mean age: 25.1 ± 4.5 years), and 25 normo-divergent (mean age: 23.6 ± 4.1 years) patients with no previous orthodontic treatment were evaluated using cone-beam computed tomography. Axial and cross-sectional views were evaluated with regard to whether dehiscence and/or fenestration on buccal and lingual surfaces existed or not. For statistical analysis, the Pearson chi-square test was used at a P < .05 significance level.
  
  
  RESULTS
  According to the statistical analysis, the hypo-divergent group (6.56%) had lower dehiscence prevalence than the hyper-divergent (8.35%) and normo-divergent (8.18%) groups (P  =  .004). Higher prevalences of dehiscence and fenestration were found on buccal sides in all vertical growth patterns. While fenestration was a common finding for the maxillary alveolar region, dehiscence was a common finding in the mandible in all groups.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Periodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
authors.forename: Sukru
authors.initials: S
authors.lastname: Enhos
authors.forename: Tancan
authors.initials: T
authors.lastname: Uysal
authors.forename: Ahmet
authors.initials: A
authors.lastname: Yagci
authors.forename: İlknur
authors.initials: İ
authors.lastname: Veli
authors.forename: Faruk Izzet
authors.initials: FI
authors.lastname: Ucar
authors.forename: Törün
authors.initials: T
authors.lastname: Ozer
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000254:growth & development; D054893:Cone-Beam Computed Tomography; D005147:Facial Bones / Q000000981:diagnostic imaging / Q000254:growth & development*; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008437:Maxilla / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014070:Tooth / Q000033:anatomy & histology* / Q000000981:diagnostic imaging