scholarly journals Use of Three-Dimensional Computed Tomography to Classify Filling of Alveolar Bone Grafting

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Antonio Jorge V. Forte ◽  
Renato da Silva Freitas ◽  
Nivaldo Alonso

Several authors have proposed classifications to analyze the quality over time of secondary alveolar bone grafting. However, little discussion has been held to quantitatively measure the secondary bone grafting for correction of nasal deformity associated to cleft palate and lip. Twenty patients with unilateral alveolar cleft, who underwent secondary alveolar bone grafting, were studied with 3D computer tomography. The height between the inferior portion of the pyriform aperture and the incisal border of the unaffected side (height A) and the affected side (height B) was measured using a software Mirror. A percentage was then obtained dividing the height B by the height A and classified into grades I, II, and III if the value was greater than 67%, between 34% and 66%, or less than 33%. Age, time of followup, initial operation, and age of canine eruption were also recorded. All patients presented appropriate occlusion and function. Mean time of followup was 7 years, and mean initial age for operation was 10 years old. 16 patients were rated as grade I and 4 patients as grade II. No cases had grade III. We present a new grading system that can be used to assess the success of secondary bone grafting in patients who underwent alveolar cleft repair.

2018 ◽  
Vol 154 (5) ◽  
pp. 657-663 ◽  
Author(s):  
Isabella Simões Holz ◽  
Roberta Martinelli Carvalho ◽  
José Roberto Lauris ◽  
Steven J. Lindauer ◽  
Daniela Gamba Garib

2007 ◽  
Vol 44 (2) ◽  
pp. 142-148 ◽  
Author(s):  
Matthias Feichtinger ◽  
Rudolf Mossböck ◽  
Hans Kärcher

Objective: Secondary bone grafting plays an important role in the dental rehabilitation of patients with clefts of the lip, alveolus, and palate. A major complication of this surgical technique is resorption of the grafted bone transplant. Conventional two-dimensional radiographs are often inconclusive and do not demonstrate the true deficit. The main objective of this study was to evaluate the amount and exact location of bone loss on the basis of three-dimensional models over a period of 3 years. Design: Twenty-four patients with unilateral cleft palate were included in this prospective study. Axial computed tomography scans of all patients were taken immediately preoperatively, and 1, 2, and 3 years postoperatively. Volumetric analysis was performed on three-dimensional models of the cleft defects and the bone bridges using three-dimensional computed tomography. Interventions: All patients were treated by secondary alveolar bone grafting prior to eruption of the permanent canine. Results: Extensive bone resorption was found in the bucco-palatal dimension of the alveolar portion of the transplant. The success rate of secondary bone grafting was high in cases of rapid orthodontic gap closures. The mean bone loss in the first year after surgery was 49.5%. The transplants remained almost constant in the following 2 years. Conclusions: Radiographic scales based on orthopantomography only evaluate the vertical dimension of the transplants. This study, however, showed that bone resorption in the transversal dimension is clearly underestimated with conventional two-dimensional radiographs.


2000 ◽  
Vol 37 (2) ◽  
pp. 179-184 ◽  
Author(s):  
Catherine Aurouze ◽  
Karlind T. Moller ◽  
Richard R. Bevis ◽  
Kelly Rehm ◽  
Joel Rudney

Objective The primary purpose of this study was to evaluate presurgical status of the alveolar cleft site and success of secondary alveolar bone grafting. Design Thirty patient records were retrospectively reviewed. Patients selected for inclusion had isolated cleft of at least the primary palate. Patients with additional anomalies were not selected. The study population consisted of 15 female sites and 16 male cleft sites. There were two bilateral cleft lip and palate (CLP) patients and 28 unilateral CLP patients. The age at the time of the secondary alveolar bone grafting ranged from 7 years to 14 years, 4 months. Setting The study was conducted at the Cleft Palate Clinic at the University of Minnesota, School of Dentistry. Method Presurgical radiographs taken at least 1 month prior to the secondary bone grafting and postsurgical radiographs taken at least 6 months after bone surgery were measured. Measurements included size of the cleft defect and bone support for distal and mesial teeth adjacent to the cleft. Evaluation of success was determined on the basis of postsurgical measurements of satisfactory, intermediate, and unsatisfactory outcomes. Results and Conclusion The size of the cleft defect was not correlated with the success rate of the secondary alveolar bone grafting. If the amount of distal bone support for the mesial tooth was the same as those in a periodontally healthy individual, a satisfactory outcome was 5.8 times more likely. If the amount of mesial bone support for the distal tooth was the same as those in a periodontally healthy individual, the satisfactory outcome was 3.8 times more likely. Although not a primary purpose of the study, it was found that in this study population, if the patient was female, a satisfactory outcome was 3.8 times more likely.


2003 ◽  
Vol 40 (5) ◽  
pp. 449-452 ◽  
Author(s):  
S. Kamakura ◽  
T. Yamaguchi ◽  
S. Kochi ◽  
A. Sato ◽  
K. Motegi

Objective To overcome the difficulties of one-stage secondary alveolar bone grafting for patients with bilateral cleft lip and palate (BCLP) who have a broad alveolar cleft, the value of two-stage alveolar bone grafting was examined. Patients Three patients (2 girls and 1 boy) with BCLP were treated by two-stage alveolar bone grafting. The procedure consisted of a first-stage surgery (mean age 8 year 6 months ± 7.8 months), which consisted of alveolar bone grafting for one side of the BCLP, and second-stage surgery for the contralateral side several months later. For the postoperative assessment, radiographs of the operated site were examined. Results The average amount of implanted bone per operation and per patient was 6.8 ± 1.1 g and 13.7 ± 1.0 g, respectively. Postoperative clinical and radiographic examinations revealed that an appreciable alveolar bone ridge had formed, and there were no major complications. Conclusions Two-stage alveolar bone grafting, which makes it possible to reduce the amount of implanted bone, could be an optional surgical procedure for patients with BCLP and a broad alveolar cleft.


2020 ◽  
Vol 7 (10) ◽  
pp. 1591
Author(s):  
Charan Teja Vemagiri ◽  
Srikanth Damera ◽  
V. R. Chandrababu Pamidi ◽  
Siva Ganesh Pampana

The secondary alveolar bone grafting is an integral component of contemporary rehabilitation of the patients with cleft lip and palate with alveolar defects. Iliac bone graft is frequent secondary graft used in the correction of alveolar defects. There is successful rehabilitation of osseous component post operatively.


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