A hybrid technique for sinus floor elevation in the severely resorbed posterior maxilla
정의원, 홍지연, 이중석, 김창성, 조규성, 최성호,
소속 상세정보
정의원 ( Jung Ui-Won ) - 연세대학교 치과대학 치주과학교실
홍지연 ( Hong Ji-Youn ) - 연세대학교 치과대학 치주과학교실
이중석 ( Lee Jung-Seok ) - 연세대학교 치과대학 치주과학교실
김창성 ( Kim Chang-Sung ) - 연세대학교 치과대학 치주과학교실
조규성 ( Cho Kyoo-Sung ) - 연세대학교 치과대학 치주과학교실
최성호 ( Choi Seong-Ho ) - 연세대학교 치과대학 치주과학교실
KMID : 0363020100400020076
Abstract
Purpose: This study aimed to evaluate the effectiveness of the modified sinus floor elevation technique described hereafter as a "hybrid technique," in 11 patients with severely resorbed posterior maxillae.
Methods: Eleven patients who received 22 implants in the maxillary premolar and molar areas by the hybrid technique were enrolled in this study. A slot-shaped osteotomy for access was prepared on the lateral wall along the lower border of the sinus floor. The Schneiderian membrane was fully reflected through the lateral slot. Following drilling with the membrane protected by a periosteal elevator, the bone was grafted. All implants were placed simultaneously with sinus augmentation. The cumulative success rate was calculated and clinical parameters were recorded. Radiographic measurements were performed.
Results: All implants were well maintained at last follow up (cumulative success rate=100%). The mean residual bone height, augmented bone height, crown-to-implant ratio, and marginal bone loss were 4.1±1.64 mm, 8.76±1.77 mm, 1.21±0.33 mm, and 0.34±0.72 mm, respectively.
Conclusions: Simultaneous implant placement with sinus augmentation by hybrid technique showed successful clinical results over a 2-year observation period and may be a reliable modality for reconstruction of a severely resorbed posterior maxilla.
키워드
Bone substitutes;Dental implants;Maxillary sinus
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