Alshubrmi Hasna, Mousa Mohammed A, Taher Ibrahim A, Sghaireen Mohammed Ghazi, Ganji Kiran Kumar, Issrani Rakhi, Alzarea Bader K
Int J Prosthodont. 2025 Mar 20;25(2):196-205. doi: 10.11607/ijp.8903.
To evaluate the adherence of three types of bacteria (Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa) and the size of the microgap of three different implant systems (JD Icon Plus [JD], ORA system [Ora; Dental Tech], and Ankylos [Dentsply Sirona]) under four different screw torque values.
A total of 10 samples for each tested implant system were used under different torques to determine the width of the gaps. The abutments were connected to the fixtures using a universal digital wrench, and an initial torque value of 10 Ncm was applied for all samples. After the assessment of the microgap, the fixture was repositioned into the bench vise, and the torque was increased to 20, 30, and 40 Ncm. The microgap assessment was done using a scanning electron microscope (SEM). Before the torque was increased to 40 Ncm, 11 samples for each tested implant system were used under 30 Ncm torque to determine the leakage in the tested implants for S. aureus, E. coli, and P. aeruginosa. Data were analyzed with multiple one-way ANOVA, Post hoc, and chi-square tests.
The Ankylos system showed the widest gap under all torques (P < .005), and the JD system demonstrated the lowest gap (P < .005). Regarding the bacterial leakage, JD showed the highest adherence to the bacteria, and the adherence was mainly to P. aeruginosa, while the Ankylos system showed the lowest adherence (P < .005).
Within limits, the higher torque provides a higher fit to the implant-abutment interface (IAI), offering more stability. Ankylos implants showed the widest gap, while JD showed the narrowest. Regarding the bacterial leakage, JD showed the highest adherence to P. aeruginosa, while the ORA system showed the highest adherence to E. coli.
评估在四种不同的螺钉扭矩值下，三种细菌（金黄色葡萄球菌、大肠杆菌和铜绿假单胞菌）的黏附情况以及三种不同种植体系统（JD Icon Plus [JD]、ORA系统[Ora；牙科技术公司]和Ankylos [登士柏西诺德公司]）的微间隙大小。
每个测试种植体系统共使用10个样本，在不同扭矩下测定间隙宽度。使用通用数字扳手将基台连接到种植体上，所有样本的初始扭矩值均为10 Ncm。在评估微间隙后，将种植体重新放置在台虎钳中，扭矩增加到20、30和40 Ncm。使用扫描电子显微镜（SEM）进行微间隙评估。在扭矩增加到40 Ncm之前，每个测试种植体系统的11个样本在30 Ncm扭矩下用于测定金黄色葡萄球菌、大肠杆菌和铜绿假单胞菌在测试种植体中的渗漏情况。数据采用多因素单因素方差分析、事后检验和卡方检验进行分析。
Ankylos系统在所有扭矩下均显示出最宽的间隙（P <.005），而JD系统显示出最小的间隙（P <.005）。关于细菌渗漏，JD对细菌的黏附性最高，且主要是对铜绿假单胞菌，而Ankylos系统显示出最低的黏附性（P <.005）。
在一定范围内，较高的扭矩能使种植体与基台界面（IAI）的贴合度更高，提供更大的稳定性。Ankylos种植体显示出最宽的间隙，而JD显示出最窄的间隙。关于细菌渗漏，JD对铜绿假单胞菌的黏附性最高，而ORA系统对大肠杆菌的黏附性最高。
