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논문 기본 정보

자료유형
학술저널
저자정보
김윤호 (부산대학교 치과대학) 최나래 (부산대학교) 김용덕 (부산대학교)
저널정보
대한악안면성형재건외과학회 Maxillofacial Plastic Reconstructive Surgery Maxillofacial Plastic Reconstructive Surgery 제39권 제1호
발행연도
2017.1
수록면
1 - 6 (6page)
DOI
10.1186/s40902-016-0100-2

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Background: All clinicians are aware of the difficulty of installing a dental implant in posterior maxilla because ofproximate position of maxillary sinus, insufficient bone width, and lower bone density. This study is to examinewhich factors will make the implantation in the posterior maxilla more difficult, and which factors will affect thepostoperative implant stability in this region. Methods: Five hundred seventy-three fixtures on the maxilla posterior were included for this study from all thepatients who underwent an installation of the dental implant fixture from January 2010 to December 2014 at theDepartment of Oral and Maxillofacial Surgery in Pusan National University Dental Hospital (Yangsan, Korea). Thepostoperative implant stability quotient (ISQ) value, fixture diameter and length, presence of either bone graft orsinus lift, and graft material were included in the reviewed factors. The width and height of the bone bed wasassessed via preoperative cone beam CT image analysis. The postoperative ISQ value was taken just before loadingby using the OsstellTM mentor® (Integration Diagnostics AB, Gothenburg, Sweden). The t test and ANOVA methodswere used in the statistical analysis of the data. Results: Mean ISQ of all the included data was 79.22. Higher initial bone height, larger fixture diameter, andlonger fixture length were factors that influence the implant stability on the posterior edentulous maxilla. Onthe other hand, the initial bone width, bone graft and sinus elevation procedure, graft material, and approachmethod for sinus elevation showed no significant impact associated with the implant stability on the posterioredentulous maxilla. Conclusions: It is recommended to install the fixtures accurately in a larger diameter and longer length byperforming bone graft and sinus elevation.

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