The rate and stability of mandibular block bone graft in recent 5 years
박종철, 김윤호, 최홍석, 오종식, 신상훈, 김용덕,
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박종철 ( Park Jong-Cheol ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
김윤호 ( Kim Yun-Ho ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
최홍석 ( Choi Hong-Seok ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
오종식 ( Oh Jong-Shik ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
신상훈 ( Shin Sang-Hun ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
김용덕 ( Kim Yong-Deok ) - Pusan National University School of Dentistry Department of Oral and Maxillofacial Surgery
Abstract
Background: The purposes of the present study were to compare implant stabilities of mandibular block bone graft and bovine bone graft and to evaluate influencing factors for implant stability in mandibular block bone (MBB) graft.
Methods: This retrospective study investigated 1224 cases and 389 patients treated by one surgeon in the Department of Oral and Maxillofacial Surgery of Pusan National University Dental Hospital (Yangsan, Korea) between January 2010 and December 2014. Proportions that MBB graft cases constitute in all implant restoration cases and in all bone graft cases were measured. Implant stability quotient (ISQ) values were achieved by the same surgeon before loading. The average ISQ values of the experimental groups were compared. In addition, ISQ values of influencing factors, such as age, sex, implant size, and implant placement site, were compared within the MBB group using OsstellTM Mentor (Osstell®, Goteborg, Sweden). Paired t test and ANOVA were conducted for statistical analysis with a significance level of 0.05.
Results: Fifty-five percent of all implant restoration cases performed bone graft while MBB cases constituted 34% of all implant restoration cases and 61% of all bone graft cases. Comparing ISQ values according to bone graft materials, the MBB group manifested sufficient implant stability by presenting comparable ISQ value to that of the experimental group without bone graft. Among the reviewed factors, females, mandibular molar regions, and implants in larger diameter displayed greater implant stabilities.
Conclusions: Satisfactory implant stability was accomplished upon administration of MBB graft. Within the limitation of this study, gender, implant site, and implant diameter were speculated to influence on implant stability in MBB graft.
키워드
Implant stability; Mandibular block bone; Bone graft; ISQ; Impact factor
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