Maxillary sinus augmentation using biphasic calcium phosphate: dimensional stability results after 3–6 years
10.5051/jpis.2019.49.1.47
- Author:
Jae Kook CHA
1
;
Chingu KIM
;
Hyung Chul PAE
;
Jung Seok LEE
;
Ui Won JUNG
;
Seong Ho CHOI
Author Information
1. Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea. shchoi726@yuhs.ac
- Publication Type:Original Article
- Keywords:
Bone substitutes;
Dental implants;
Maxillary sinus floor augmentation
- MeSH:
Bone Substitutes;
Calcium;
Dental Implants;
Durapatite;
Follow-Up Studies;
Humans;
Maxillary Sinus;
Membranes;
Sinus Floor Augmentation;
Transplants
- From:Journal of Periodontal & Implant Science
2019;49(1):47-57
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: This study was designed to observe the resorption pattern of biphasic calcium phosphate (BCP) used for maxillary sinus augmentation over a 3- to 6-year healing period, and to investigate factors affecting the resorption of BCP. METHODS: A total of 47 implants placed in 27 sinuses of 22 patients were investigated. All patients had residual bone height less than 5 mm at baseline. The modified Caldwell-Luc approach was used to elevate the maxillary sinus membrane, and the sinus cavity was filled with BCP (70% hydroxyapatite and 30% β-tricalcium phosphate). Implant placement was done simultaneously or in a staged manner. Serial radiographic analysis was performed up to 6 years postoperatively. RESULTS: During the follow-up period, no implant loss was reported. The mean reduced height of the augmented sinus (RHO) was 0.27±1.08 mm at 36 months, and 0.89±1.39 mm at 72 months postoperatively. Large amounts of graft material (P=0.021) and a long healing period (P=0.035) significantly influenced the amount of RHO. In particular, there was a significant relationship between a healing period longer than 40 months and RHO. CONCLUSIONS: BCP can achieve proper dimensional stability with minimal reduction of the graft height in a 3- to 6-year healing period after maxillary sinus augmentation. The healing period and the amount of graft material influenced the resorption of BCP.
