K Honma1, T Kobayashi, T Nakajima, T Hayasi. 1. First Department of Oral and Maxillofacial Surgery, School of Dentistry, Niigata University, Niigata City, Japan. honma@dent.niigata-u.ac.jp
Abstract
PURPOSE: The purpose of this article was to evaluate the initial volume of alveolar clefts and the bone bridges formed in patients who had undergone secondary bone grafting. PATIENTS AND METHODS: Fifteen cleft patients were studied. Computed tomography (CT) scans were made at 2-mm slice sections immediately before operation and at 3 months and 1 year postoperatively. The volume of the alveolar clefts and bone bridges was calculated from stored images by using an image scanner and a personal computer. RESULTS: The mean cleft volume of the patients was 1.1 +/- 0.3 cm3. The corresponding volume of the bone bridges 3 months and 1 year postoperatively were 1.2 +/- 0.6 cm3 and 1.1 +/- 0.5 cm3, respectively. The value at 1 year was significantly decreased compared with that at 3 months. CONCLUSIONS: Adequate bone bridging was maintained for 1 year. However, it is suggested that the grafted site should be restored with a functioning tooth or a dental implant to place it under physiologic stress, because the volume of the bone bridges tends to decrease from 3 months to 1 year.
PURPOSE: The purpose of this article was to evaluate the initial volume of alveolar clefts and the bone bridges formed in patients who had undergone secondary bone grafting. PATIENTS AND METHODS: Fifteen cleftpatients were studied. Computed tomography (CT) scans were made at 2-mm slice sections immediately before operation and at 3 months and 1 year postoperatively. The volume of the alveolar clefts and bone bridges was calculated from stored images by using an image scanner and a personal computer. RESULTS: The mean cleft volume of the patients was 1.1 +/- 0.3 cm3. The corresponding volume of the bone bridges 3 months and 1 year postoperatively were 1.2 +/- 0.6 cm3 and 1.1 +/- 0.5 cm3, respectively. The value at 1 year was significantly decreased compared with that at 3 months. CONCLUSIONS: Adequate bone bridging was maintained for 1 year. However, it is suggested that the grafted site should be restored with a functioning tooth or a dental implant to place it under physiologic stress, because the volume of the bone bridges tends to decrease from 3 months to 1 year.
Authors: M Gokul Chandra Reddy; V Ramesh Babu; V Eswar Rao; J Jaya Chaitanya; S Allareddy; C Charan Kumar Reddy Journal: J Int Oral Health Date: 2015-04