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| Clinical study of four different methods of bone augmentation technology in dental implant |
| ZHANG Bin1, ZHANG Junhua2, SUN Lihua3, LIU Yusan1*, LI Yourui1 |
1 Department of Stomatology,Binzhou Medical University Hospital, Binzhou 256603, Shandong,P.R.China;
2 Department of Dermatology,Binzhou Medical University Hospital;
3 Department of Endocrinology,Binzhou Medical University Hospital |
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Abstract Objective To evaluate the four different methods of bone augmentation technology in dental implant. Methods Seventy-nine cases of dental defects were selected, including the guided bone regeneration (GBR) 27 cases, 12 cases of onlay bone grafting, 23 cases of intra-maxillary sinus elevation, 17 cases of extra-maxillary sinus elevation). Six months after the implantation, the horizontal transfer mold was used to make zirconia all-ceramic prosthesis. One, two and three years after the repair, the patients were examined again to observe the health of the gingival tissue around the implant and the use of all-ceramic crown, the bone tissue absorption around the implant and subjective satisfaction of patients with implant denture. Results Before full crown restoration, one implant in GBR group became loose and fell off due to early contact with the invisible denture. After full crown repair, 2 base table screws in intra-maxillary sinus elevation group were loose. In group of extra-maxillary sinus elevation, 1 crown porcelain fell off, and the rest of the implants had good stability. The onlay group had more bone resorption in the first year, P＜0.05. There was no statistical difference in bone resorption between the four groups in the second and third years, and all obtained good soft and hard tissue effect. Conclusion Four different bone augmentation methods can achieve good clinical results.
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Received: 08 May 2019
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