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Change in Grafted Secondary Alveolar Bone in Patients with UCLP and UCLA : A Three-Dimensional Computed Tomography Study

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Authors
Kim, Kyu-Ry; Kim, Sukwha; Baek, Seung-Hak
Issue Date
2008-07
Publisher
Angle Orthodontist
Citation
Angle Orthod. 2008;78(4):631-640
Keywords
Alveolar bone graft3D-CTHeightLabiolingual thicknessVolume
Abstract
Objective: To evaluate changes in the grafted bone after secondary alveolar bone graft (ABG)
with iliac bone using 3-dimensional computed tomography (3D-CT).
Materials and Methods: The sample consisted of 10 patients with unilateral cleft lip and palate
(UCLP) and 5 patients with unilateral cleft lip and alveolus (UCLA) (mean age 10 years). 3DCT
data (Sensation 10, Siemens, Munchen, Germany), which was obtained 1 month before (T0),
3 months after (T1), and 12 months (T2) after ABG, were used to measure the height, labiolingual
thickness (LLT), and volume of the grafted bone using V-Works 4.0 program (Cybermed Inc,
Seoul, Korea). All of the UCLA patients showed the lingual process in the cleft area at T0, but
the UCLP did not.
Results: During T1–T2, there was a significant decrease in height of the upper part of the grafted
bone; however, volumes of both the upper and lower parts were decreased. Unilateral cleft type
and presence of ULI in the cleft area did not affect the change in height and volume of the grafted
bone. The resorption amount (RA) was significantly larger in the lower part than in the upper part,
while the resorption rate (RR) exhibited an opposite result. In addition, there was significantly
more RA in the labial side in UCLA than UCLP (P .05). There was no correlation between the
initial cleft width and changes in height, LLT, and volume of the grafted bone.
Conclusion: Overpacking and/or excessive condensation of the grafted bone is not necessary in
UCLA with the lingual process because of the greater chance of resorption on the labial side of
the grafted bone.
ISSN
0003-3219
Language
English
URI
https://hdl.handle.net/10371/68571
DOI
https://doi.org/10.2319/072907-352.1
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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