Flapless Versus Traditional Dental Implant Surgery: Long-Term Evaluation of Crestal Bone Resorption
Flapless Versus Traditional Dental Implant Surgery: Long-Term Evaluation of Crestal Bone Resorption
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DOI：
10.1016/j.joms.2016.01.053
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发表时间：
2016-07-01
影响因子：
1.9
通讯作者：
Siervo, Sandro
中科院分区：
文献类型：
--
作者：
Pisoni, Luca;Ordesi, Paolo;Siervo, Sandro
目的：文献报道，与传统种植手术相比，无翻瓣手术具有多种优势，包括种植体周围硬组织的维护。本研究调查了采用无翻瓣手术与传统手术种植体植入后长期随访期间的垂直骨吸收情况。 材料和方法：在这项前瞻性、随机对照临床试验中，40 名患者在意大利米兰意大利口腔医院颌面外科接受了种植体植入。患者被随机分配到对照组或实验组。对照组采用开皮瓣手术（传统手术）植入种植体，而实验组采用无翻瓣手术植入种植体。在基础点、负载点和长期控制点测量第一根种植体螺纹与牙槽嵴边缘骨水平之间的距离。种植体植入后立即进行基础记录。记录种植体加载时、下颌愈合2个月后和上颌愈合3个月后的载荷测量，并在种植体植入后36个月记录长期控制记录。使用基于两组骨吸收的平均值和标准差进行统计分析。为了检测统计差异，应用了学生 t 检验。如果 P 值小于 0.05，则认为差异显着。结果：对照组（开皮瓣手术）由 19 名患者组成，实验组（无皮瓣手术）由 21 名患者组成。在基础、种植体负荷和 3 年对照记录方面，两组之间的种植体周围骨吸收没有发现统计学差异。结论：根据这项研究，种植手术的方法似乎不会影响人类种植体周围的骨吸收，至少在本研究测量的时期内是如此。 (C) 2016 年美国口腔颌面外科医师协会。
Purpose: The literature reports that flapless compared with traditional implant surgery can be associated with several advantages, including the maintenance of peri-implant hard tissues. This study investigated vertical bone resorption during long-term follow-up after implant placement with flapless versus traditional surgery.Material and Methods: In this prospective, randomized controlled clinical trial, 40 patients underwent implant placement at the Maxillofacial Department Surgery of the Istituto Stomatologico Italiano Hospital in Milan, Italy. Patients were randomly assigned to the control or experimental group. The control group had implants placed with open flap surgery (traditional surgery), whereas the experimental group had implants placed with flapless surgery. The distance between the first implant thread and the marginal crestal bone level was measured at the basal, loading, and long-term control points. The basal recording was performed just after implant placement. The loading measurement was recorded at the time of implant loading, after 2 months of healing for the lower jaw and after 3 months of healing for the upper jaw, and the long-term control record was registered 36 months after implant placement. Statistical analysis was performed using mean values and standard deviations based on bone resorption in the 2 groups. To detect statistical differences, the Student t test was applied. Differences were considered significant if P values were less than .05.Results: The control group (open flap surgery) was comprised of 19 patients, and the experimental group (flapless surgery) was comprised of 21 patients. No statistical differences were found in peri-implant bone resorption between the 2 groups at the basal, implant loading, and 3-year control recordings.Conclusion: According to this study, the approach to implant surgery does not seem to influence peri-implant bone resorption in humans, at least for the period measured in this study. (C) 2016 American Association of Oral and Maxillofacial Surgeons.