Factors Affecting Implant Surface Roughness and Platform Alterations After Implantoplasty: An In Vitro Study Simulating Different Clinical Scenarios.

IF 1.7 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Genís Burgueño-Barris, Octavi Camps-Font, Rui Figueiredo, Eduard Valmaseda-Castellón
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引用次数: 0

Abstract

Purpose: To determine which clinical factors might affect the postimplantoplasty presence of residual threads, platform alterations, and level of surface roughness. Materials and Methods: A total of 60 implants were placed in 20 resin models (10 edentulous maxillary models and 10 partially dentate mandibular models), and 5-mm peri-implant bone defects were created. These models were then placed in simulation mannequins. A single researcher performed the implantoplasties, which were divided into the following groups: favorable situation (FS; maxillary incisors without adjacent teeth), unfavorable situation (US; mandibular molars with adjacent teeth), crown (C; mandibular premolars with a prosthetic crown and adjacent teeth), and noncrown (NC; mandibular premolars with adjacent teeth and without a prosthetic crown). The presence of residual threads, gaps in the implant-abutment interface, and silicone debris was assessed using a scanning electron microscope (SEM), and the surface roughness (Sa and Sz) was analyzed with a confocal optical microscope. A descriptive and bivariate analysis was conducted. Results: The postimplantoplasty surfaces were significantly smoother than the original implant surfaces. The surface roughness was significantly higher in the US group than in the FS group. Gaps in the implant-abutment interface were infrequent (6.67%; 95% CI = 2.62 to 15.93) and only appeared in the posterior zone. The odds ratio for the presence of residual threads and silicone debris (US group vs FS group) was 7.1 (95% CI = 4.15 to 12.14; P < .001) and 5.53 (95% CI = 3.21 to 9.53; P < .001), respectively. When a prosthetic crown was present, residual threads were 7 times more likely to be found (OR = 7.0; 95% CI = 3.5 to 13.99; P < .001). Conclusions: Implantoplasty leads to a significant reduction in the surface roughness of implants but is affected by several variables. Performing implantoplasty on posterior mandibular implants with adjacent teeth seems to be more challenging compared to implants placed in the anterior region of a fully edentulous maxilla. The presence of a prosthetic crown should also be considered as a relevant factor. Furthermore, implantoplasty can sometimes cause gaps in the implant-abutment interface and an accumulation of silicone debris, especially in areas with limited access.

种植体成形术后影响种植体表面粗糙度和平台变化的因素:一项模拟不同临床场景的体外研究。
目的:确定哪些临床因素可能影响植入术后残留螺纹的存在、平台改变和表面粗糙度水平。材料和方法:将60个种植体放置在20个树脂模型中(10个无牙上颌模型和10个部分齿状下颌模型),并形成5mm的种植体周围骨缺损。然后将这些模型放置在模拟人体模型中。一名研究人员进行了植入成形术,分为以下几组:有利情况(FS;没有相邻牙齿的上颌切牙)、不利情况(US;有相邻牙齿的下颌磨牙)、牙冠(C;有假牙冠和相邻牙齿的下颚前磨牙),和非冠(NC;有相邻牙齿且没有假牙冠的下颌前磨牙)。使用扫描电子显微镜(SEM)评估残余螺纹、种植体-基牙界面中的间隙和硅胶碎片的存在,并使用共聚焦光学显微镜分析表面粗糙度(Sa和Sz)。进行了描述性和双变量分析。结果:种植体成形后的表面明显比原种植体表面光滑。US组的表面粗糙度明显高于FS组。种植体-基牙界面的间隙很少(6.67%;95%CI=2.62~15.93),仅出现在后部区域。残留螺纹和硅胶碎屑存在的比值比(US组与FS组)分别为7.1(95%CI=4.15至12.14;P<.001)和5.53(95%CI=3.21至9.53;P<0.001)。当存在人工牙冠时,发现残留螺纹的可能性高出7倍(OR=7.0;95%CI=3.5-13.99;P<.001)。结论:种植体成形术可显著降低种植体的表面粗糙度,但受几个变量的影响。与种植在完全无牙上颌骨前部的种植体相比,对具有相邻牙齿的下颌后种植体进行种植成形术似乎更具挑战性。假冠的存在也应被视为一个相关因素。此外,植入成形术有时会导致植入物-基牙界面出现间隙和硅胶碎片堆积,尤其是在进入受限的区域。
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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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