The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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A change of sinus floor level related to the amount of grafted material after bone added osteotome sinus floor elevation (BAOSFE) technique: A radiographic retrospective study

상악동저 거상술에서 이식재 양에 따른 이식골 높이 변화에 대한 방사선학적 평가

  • Lee, Ji-Eun (Department of Periodontology and Prosthodontics, Graduated School of Clinical Dentistry, Ewha Womans University) ;
  • Park, So-Min (Department of Periodontology and Prosthodontics, Graduated School of Clinical Dentistry, Ewha Womans University) ;
  • Lee, Jong-Bin (Department of Periodontology and Prosthodontics, Graduated School of Clinical Dentistry, Ewha Womans University) ;
  • Pang, Eun-Kyoung (Department of Periodontology and Prosthodontics, Graduated School of Clinical Dentistry, Ewha Womans University)
  • 이지은 (이화여자대학교 임상치의학대학원 임상치주보철학과) ;
  • 박소민 (이화여자대학교 임상치의학대학원 임상치주보철학과) ;
  • 이종빈 (이화여자대학교 임상치의학대학원 임상치주보철학과) ;
  • 방은경 (이화여자대학교 임상치의학대학원 임상치주보철학과)
  • Received : 2017.02.13
  • Accepted : 2017.07.14
  • Published : 2017.11.01
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Abstract

Purpose: The purpose of this article is to evaluate a change o bone level on the sinus floor by a bone added osteotome sinus floor elevation (BAOSFE) technique, according to the amount of deproteinized bovine bone mineral (DBBM). And Changes in augmented bone height after BAOSFE procedure were also assessed for 6 months after the implant procedure. Materials and Methods: Forty eight single implants were placed in the posterior maxilla using BAOSFE technique. The implantation sites were classified into two groups according to the amount of grafted DBBM, 0.25 group (0.25g) and 0.5 group (0.5 g). Panoramic views or cone-beam computed tomography (CBCT) were taken at the time of implant placement with BAOSFE and after at least 6 months to assess the bone level changes in the elevated sites with DBBM. Results: Alveolar bone level around all implants was stable clinically and radiographically during the follow-up. Mean augmented bone height was $5.21{\pm}0.94mm$ in 0.25 group and $6.92{\pm}1.19mm$ in 0.5 group. Statistically significant difference in augmented bone height was found in the comparison between the 0.25 group and 0.5 group at the time of surgery. There was a positive correlation between the length of the implant protruding into the maxillary sinus and the augmented bone height. After 6 months, mean reduction of augmented bone height was $0.50{\pm}0.34mm$ in 0.25 group and $0.41{\pm}0.30mm$ in 0.5group. There was no specific correlation between the reduction of augmented bone height and amount of grafted DBBM. Conclusion: Within the limit of this study, the amount of grafting materials and the protrusion length of implant into the maxillary sinus affect the amount of the augmented bone height.

Keywords

References

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