Nayak Rashmita, Devanna Raghu, Dharamsi Anand M, Shetty Jeevan, Mokashi Rizwan, Malhotra Sourav
Department of Periodontology & Oral Implantology, Institute of Dental Sciences, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India, e-mail:
Orthodontic Division, Department of Preventive Dentistry Faculty of Dentistry, Taif University, Al-Taif, Kingdom of Saudi Arabia.
J Contemp Dent Pract. 2018 May 1;19(5):574-578.
The objective of this study was to determine the vertical and horizontal marginal bone levels in platform-switched and platform-matched dental implants.
In the present study, 50 dental implants were placed in 50 patients over a 1-year period. Measurement was performed from the implant shoulder to the most apical and horizontal marginal defect by periapical radiographs to examine the changes of peri-implant alveolar bone before and 12 months after prosthodontic restoration delivery.
These marginal bone measurements showed a bone gain of 0.53 ± 0.98 mm in the vertical gap and 0.52 ± 0.93 mm in the horizontal gap of the platform matching, while in the platform switching, a bone gain of 1.33 ± 1 mm in the vertical gap (p < 0.05) and 1.60 ± 0.56 mm in the horizontal gap was found. Statistically significant difference was found for bone regeneration in the vertical gap between the two groups (p < 0.05) using t-test with Statistical Package for the Social Sciences (SPSS) statistical test version 17.
The crestal bone around the implants can be preserved with platform-switching concept and it can be applied in clinical condition.
The crestal bone around the implants can be preserved with platform-switching concept.
本研究的目的是确定平台转换和平台匹配型牙种植体的垂直和水平边缘骨水平。
在本研究中，1年内为50例患者植入了50颗牙种植体。通过根尖片从种植体肩部至最根尖和水平边缘缺损处进行测量，以检查义齿修复交付前及交付后12个月种植体周围牙槽骨的变化。
这些边缘骨测量显示，平台匹配组垂直间隙骨增量为0.53±0.98mm，水平间隙为0.52±0.93mm；而在平台转换组，垂直间隙骨增量为1.33±1mm（p<0.05），水平间隙为1.60±0.56mm。使用社会科学统计软件包（SPSS）统计测试版本17进行t检验，发现两组垂直间隙骨再生存在统计学显著差异（p<0.05）。
采用平台转换概念可保留种植体周围的嵴顶骨，且可应用于临床情况。
采用平台转换概念可保留种植体周围的嵴顶骨。
