Does a Severely Resorbed Subantral Ridge Decrease Long-Term Implant Survival Rate with Sinus Floor Augmentation?

IF 1.7 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE International Journal of Oral & Maxillofacial Implants Pub Date : 2022-09-01 DOI:10.11607/jomi.9453
Lixuan Niu, Huajie Yu, Juan Wang, Yiman Tang, Lixin Qiu
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Abstract

Purpose: To identify the impact of residual bone height on 5-year implant survival and prosthetic complication rates in patients who underwent maxillary sinus grafting.

Materials and methods: A total of 87 consecutive patients were treated with 104 lateral approach maxillary sinus floor augmentation procedures with 100% deproteinized bovine bone and received 169 implants. The analysis considered patient age, sex, time of implant placement, and residual bone height. Patients with < 3 mm residual bone height were assigned to the study group; otherwise, they were placed in the control group.

Results: The mean follow-up was 68.2 months (0 to 103 months). The mean residual bone height was 1.8 mm in the study group and 4.1 mm in the control group. The 5-year implant survival and prosthetic complication rates were, respectively, 97.4% and 8.0% in the study group and 100% and 12.5% in the control group. Residual bone height, sex, age, and time of implant placement were not significant factors for the 5-year implant survival or prosthetic complication rate. The lateral bone wall was significantly thinner in the study group. The grafted bone height reduction was significantly different at 6 months and 2 years postoperation in both groups, but there was no difference in the change in grafted bone height reduction over time between the two groups.

Conclusion: A residual bone height < 3 mm did not impact the survival rates of implants placed in grafted maxillary sinuses or the prosthetic complication rate after 5 years of functional loading.

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严重的腹下嵴吸收是否会降低窦底增强的长期种植体存活率?
目的:探讨残骨高度对上颌窦植入术患者5年种植体存活率和假体并发症发生率的影响。材料和方法:共87例患者采用104例外侧入路上颌窦底增强术,100%脱蛋白牛骨,共169例种植体。分析考虑了患者的年龄、性别、植入时间和残余骨高度。残骨高度< 3mm的患者被分配到研究组;否则,他们被置于对照组。结果:平均随访时间为68.2个月(0 ~ 103个月)。研究组平均残骨高度1.8 mm,对照组平均残骨高度4.1 mm。研究组5年种植体存活率为97.4%,假体并发症发生率为8.0%,对照组为100%,假体并发症发生率为12.5%。残骨高度、性别、年龄和种植体放置时间对5年种植体存活率或假体并发症发生率无显著影响。研究组侧骨壁明显变薄。两组术后6个月和2年的植骨高度降低量差异有统计学意义,但两组植骨高度降低量随时间变化无统计学差异。结论:残骨高度< 3mm不影响上颌窦种植体5年功能负荷后的成活率和假体并发症发生率。
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来源期刊
CiteScore
3.30
自引率
5.00%
发文量
115
审稿时长
6 months
期刊介绍: Edited by Steven E. Eckert, DDS, MS ISSN (Print): 0882-2786 ISSN (Online): 1942-4434 This highly regarded, often-cited journal integrates clinical and scientific data to improve methods and results of oral and maxillofacial implant therapy. It presents pioneering research, technology, clinical applications, reviews of the literature, seminal studies, emerging technology, position papers, and consensus studies, as well as the many clinical and therapeutic innovations that ensue as a result of these efforts. The editorial board is composed of recognized opinion leaders in their respective areas of expertise and reflects the international reach of the journal. Under their leadership, JOMI maintains its strong scientific integrity while expanding its influence within the field of implant dentistry. JOMI’s popular regular feature "Thematic Abstract Review" presents a review of abstracts of recently published articles on a specific topical area of interest each issue.
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