Volumetric Assessment of Secondary Alveolar Bone Grafting Using Cone Beam Computed Tomography
| Autor: | William Y. Hoffman, Karin Vargervik, Pawandeep Gill, Radhika Chigurupati, Snehlata Oberoi |
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| Rok vydání: | 2009 |
| Předmět: |
Male
Cuspid Cone beam computed tomography Time Factors Cleft Lip Radiography Dentistry Alveoloplasty Alveolar Process Image Processing Computer-Assisted Humans Medicine Prospective Studies Tooth Root Craniofacial Child Prospective cohort study Dental alveolus Anodontia Orthodontics Bone Transplantation business.industry Reproducibility of Results Congenital cleft Cone-Beam Computed Tomography Cleft Palate Incisor Treatment Outcome Otorhinolaryngology Bilateral cleft lip Odontogenesis Female Oral Surgery Alveolar bone grafting business Software |
| Zdroj: | The Cleft Palate-Craniofacial Journal. 46:503-511 |
| ISSN: | 1545-1569 1055-6656 |
| Popis: | Objective:To assess the radiographic outcome of secondary alveolar bone grafting in individuals with nonsyndromic unilateral or bilateral cleft lip and palate using cone beam computed tomography.Methods:This prospective study was conducted at the University of California at San Francisco Center for Craniofacial Anomalies on 21 consecutive nonsyndromic complete cleft lip and palate individuals between 8 and 12 years of age who required alveolar bone grafting. Seventeen unilateral and four bilateral cleft lip and palate individuals had preoperative and postoperative cone beam computed tomography scans that were analyzed using Amira 3.1.1 software.Results:The average volume of the preoperative alveolar cleft defect in unilateral cleft lip and palate was 0.61 cm3, and the combined average volume of the right and left alveolar cleft defects in bilateral cleft lip and palate was 0.82 cm3. The average percentage bone fill in both unilateral cleft lip and palate and bilateral cleft lip and palate was 84%. The outcome of alveolar bone grafting was assessed in relation to (1) type of cleft, (2) size of preoperative cleft defect, (3) presence or absence of lateral incisor, (4) root development stage of the maxillary canine on the cleft side, (5) timing, and (6) surgeon. None of these parameters significantly influenced the radiographic outcome of alveolar bone grafting.Conclusions:Secondary alveolar bone grafting of the cleft defect in our center was successful, based on radiographic outcome using cone beam computed tomography scans. Volume rendering using cone beam computed tomography and Amira software is a reproducible and practical method to assess the preoperative alveolar cleft volume and the adequacy of bone fill postoperatively. |
| Databáze: | OpenAIRE |
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