alexa The Use of Iliac J-Bone Block for Three Dimensional Correction of Alveolar Defect
ISSN: 2161-1122

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Research Article

The Use of Iliac J-Bone Block for Three Dimensional Correction of Alveolar Defect

Kweijing Chen1, Edward Chengchuan Ko2-4, Li Jih Fuh5,6 and Michael Yuanchien Chen1,6*

1Department of Dentistry, Division of Oral and Maxillofacial Surgery, China Medical University Hospital, China Medical University, Taichung City, Taiwan

2Department of Oral and Maxillofacial Surgery, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan

3School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan

4Department of Cartilage and Bone Regeneration (Fujisoft), Graduate School of Medicine, University of Tokyo, Tokyo, Japan

5Department of Dentistry, Division of Prosthodontics, China Medical University Hospital, Taichung City, Taiwan

6School of Dentistry, College of Medicine, China Medical University, Taichung City, Taiwan

*Corresponding Author:
Dr. Michael Yuanchien Chen
Chief, Department of Dentistry
Division of Oral and Maxillofacial Surgery
China Medical University Hospital, No. 2
Yu-der Road, Taichung City, Taiwan
Tel: +886 975681380
E-mail: [email protected]

Received date : January 20, 2016; Accepted date : February 12, 2016; Published date : February 19, 2016

Citation: Chen K, Ko EC, Fuh LJ, Chen MY (2016) The Use of Iliac J-Bone Block for Three Dimensional Correction of Alveolar Defect. Dentistry 6:363. doi:10.4172/2161-1122.1000363

Copyright: © 2016 Chen K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




This study aimed to correct complicated alveolar defects with autogenous iliac bone blocks, thereby facilitating subsequent dental implant-supported restorations. Using a retrospective study design, 27 consecutive patients (age, 19- 63 years) who underwent iliac “J-bone block” procedures from 2006 through 2010 were enrolled. All the reconstruction materials were harvested from the superior and medial aspects of the anterior iliac crest. Each iliac bone block was tailored to passively fit the contour of the alveolar defect and secured in position by titanium mini-screws to achieve significant bone volume expansion in both the transverse and vertical dimensions. Pre and post-operative computed tomography imaging studies with a radiographic guide in position were conducted to evaluate the changes in shape and volume of the recipient sites. All iliac bone grafts healed uneventfully with minimal volume shrinkage and unremarkable donor site morbidity. A total of 73 dental implants in 21 patients appeared clinically healthy. Iliac cortico-cancellous bone blocks were easily manipulated by hand instruments and transformed into a J-bone block, which lead to high-quality bone augmentation and allowed ideal implant positioning with proper axial alignment. We suggest that iliac J-bone block be used in the near future to improve the success rate of complicated implant restorations.


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