Morphologic analysis of alveolar bone in maxillary and mandibular incisors on sagittal views
| Autor: | Yu Zhang, Li-Qi Zhang, Deng-gao Liu, Ya-Ning Zhao, Ya-Qiong Zhang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Molar Adolescent Molar relationship Mandible Mandibular incisor Pathology and Forensic Medicine Alveolar crest Young Adult Sex Factors stomatognathic system Alveolar Process Maxilla Radiography Dental otorhinolaryngologic diseases medicine Humans Radiology Nuclear Medicine and imaging Maxillary central incisor Dental alveolus Retrospective Studies Orthodontics Maxillary lateral incisor business.industry Age Factors Cone-Beam Computed Tomography Middle Aged respiratory system Sagittal plane Incisor stomatognathic diseases medicine.anatomical_structure Female Surgery Anatomy business |
| Zdroj: | Surgical and Radiologic Anatomy. 43:1009-1018 |
| ISSN: | 1279-8517 0930-1038 |
| Popis: | The aim of this study was to analyze the morphologic features of alveolus in relatively healthy maxillary and mandibular incisors using cone-beam-computed tomography (CBCT). CBCT images of 318 patients were retrospectively acquired. Alveolar bone in incisive area was divided into: type 1 (thick), type 2 (relatively thick with mono-plate concavity), type 3 (thin with double-plate concavities), and type 4 (vulnerably thin). Alveolus prevalence and widths were analyzed statistically relative to age, gender, and molar relationship. Prevalence of type 1 alveolus was 78.9% in maxillary central incisors, 15.1% in maxillary lateral incisors, 24.1% in mandibular central incisors, and 5.0% in mandibular lateral incisors. Type 2 alveolus was commonly observed in the maxillary lateral incisors (82.2%), mandibular central incisors (66.2%), and mandibular lateral incisors (87.9%). Prevalence of type 3 and 4 alveoli ranged from 0.0 to 9.4%. As for maxillary central incisors, type 1 was the widest both at the alveolar crest (7.77 ± 0.58 mm) and apical area (9.05 ± 1.86 mm), while type 3 had the lowest width at the apical region (4.08 ± 0.51 mm). Among maxillary central incisors, prevalence of type 1 tended to decrease with age. At all maxillary and mandibular incisor sites, alveolus widths were significantly thicker in males than in females. At maxillary lateral incisor and mandibular incisor sites, prevalence of alveolus type was significantly different among three molar relationships. A 4-type classification system was suggested for alveolus morphology in incisive region. Identification of alveolus type might aid in the corresponding treatment. |
| Databáze: | OpenAIRE |
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