Cordeiro Bruno Q S, Mourão Carlos Fernando de Almeida Barros, Carvalho Waldimir R, Fonseca Edgard M, Montemezzi Pietro, Javid Kayvon, Martins Cintia C P, Quinelato Valquiria, Moreno Mylena D, Casado Priscila L
Graduate Program in Dentistry, Universidade Federal Fluminense, Niteroi 24020-140, RJ, Brazil.
Clinical Research Unit of the Antonio Pedro Hospital, Universidade Federal Fluminense, Niterói 24033-900, RJ, Brazil.
Materials (Basel). 2021 Aug 30;14(17):4950. doi: 10.3390/ma14174950.
The present study aimed to evaluate the influence of manual torque (10 Ncm) versus clinical torque (30 Ncm), which is recommended by the manufacturer, on the total length of morse cone implant abutments. Twenty specimens were prepared and distributed into two groups: group 1 with ten analogs for morse cone type implant, and group 2 with ten morse type implants, size 4.3 × 15 cm. In each group, the distance between the implant platform to the top of the prosthetic abutment (abutment height) was measured and subjected to a torque of 10 Ncm. Then, the 30 Ncm torque was applied to the same abutment, and abutment height was measured. The distance between the top of the abutment and the implant/analog base was measured. In order to verify the clinical reproducibility of the experiment, comparisons between the abutment height of the analog at 10 Ncm and the implant at 30 Ncm were performed, showing a greater discrepancy in torque for the 10 Ncm analog ( < 0.05). In order to verify if the change in the laboratory protocol from 10 to 30 Ncm could minimize the differences in the height of the prosthetic abutments, the abutment height in groups 1 and 2 was compared with 30 Ncm, and no significant difference was observed ( > 0.05). The data indicated that the manual torque and the torque recommended by the manufacturer influence the total length of the prosthetic abutments of morse cone implants.
本研究旨在评估手动扭矩（10牛厘米）与制造商推荐的临床扭矩（30牛厘米）对莫氏锥度种植体基台总长度的影响。制备了20个样本并分为两组：第1组有10个莫氏锥度型种植体的仿制品，第2组有10个尺寸为4.3×15厘米的莫氏型种植体。在每组中，测量种植体平台到修复基台顶部的距离（基台高度），并施加10牛厘米的扭矩。然后，对同一基台施加30牛厘米的扭矩，并测量基台高度。测量基台顶部与种植体/仿制品底部之间的距离。为了验证实验的临床可重复性，对10牛厘米时仿制品的基台高度与30牛厘米时种植体的基台高度进行了比较，结果显示10牛厘米仿制品的扭矩差异更大（<0.05）。为了验证从10牛厘米到30牛厘米的实验室方案变化是否能最小化修复基台高度的差异，将第1组和第2组的基台高度与30牛厘米时进行比较，未观察到显著差异（>0.05）。数据表明，手动扭矩和制造商推荐的扭矩会影响莫氏锥度种植体修复基台的总长度。
