Journal of Dental Implant Research 2019; 38(3): 68-72  
Vertical ridge augmentation in large alveolar ridge defects: two case reports with different graft materials
Jiyeol Bak, Jung-Woo Lee, Joo-Young Ohe, Junho Jung, Min-Ah Kim, Yong-Dae Kwon
Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Korea
Correspondence to: Yong-Dae Kwon, Department of Oral and Maxillofacial Surgery, Dental Hospital, Kyunghee University, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea. Tel: +82-2-958-9440, Fax: +82-2-966-4572, E-mail: yongdae.kwon@gmail.com
Received: October 21, 2019; Accepted: October 30, 2019; Published online: December 31, 2019.
© The Korean Academy of Implant Dentistry. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creative commons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Vertical ridge augmentation of atrophic alveolar ridge has always been a challenging surgical technique to surgeon, especially in case of postoperative large surgical defects. This case reports evaluate two cases of vertical ridge augmentation in severe alveolar ridge defects using autogenous bone graft and deproteinized bovine bone mineral (DBBM) supported by titanium mesh. Two partially edentulous patients, presenting the need for vertical ridge augmentation, was treated before implant placement. Surgical procedure was performed by the same operator. At first case of 8 years follow-up result, an autogenous bone graft was harvested from the mandibular ramus and covered by DBBM. The other case of 2 years follow-up result was performed by means of particulated bovine bone materials with resorbable collagen membrane. As an option for treatment, it is necessary to consider the shape of the defect is suitable for augmentation or it can reconstruct the ideal ridge shape for final prosthetic restoration.
Keywords: Autogenous, Deproteinized bovine bone mineral (DBBM), Implant, Vertical ridge augmentation


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