Version 1
: Received: 9 February 2020 / Approved: 10 February 2020 / Online: 10 February 2020 (11:32:53 CET)
How to cite:
Chen, C.; Hsu, K.; Hsiao, S.; Tseng, Y. The Correlation Among Gripping Volume, Insertion Torque, and Pullout Strength of Micro-implant. Preprints2020, 2020020126
Chen, C.; Hsu, K.; Hsiao, S.; Tseng, Y. The Correlation Among Gripping Volume, Insertion Torque, and Pullout Strength of Micro-implant. Preprints 2020, 2020020126
Chen, C.; Hsu, K.; Hsiao, S.; Tseng, Y. The Correlation Among Gripping Volume, Insertion Torque, and Pullout Strength of Micro-implant. Preprints2020, 2020020126
APA Style
Chen, C., Hsu, K., Hsiao, S., & Tseng, Y. (2020). The Correlation Among Gripping Volume, Insertion Torque, and Pullout Strength of Micro-implant. Preprints. https://doi.org/
Chicago/Turabian Style
Chen, C., Szu-Yu Hsiao and Yu-Chuan Tseng. 2020 "The Correlation Among Gripping Volume, Insertion Torque, and Pullout Strength of Micro-implant" Preprints. https://doi.org/
Abstract
This study evaluated the mechanical strengths of three types of orthodontic micro-implants by analyzing their structural configurations. Thirty micro-implants of three types (diameter 1.5 mm, Types A, B, C) were assessed. All micro-implants were manually driven into artificial bones at an 8-mm depth. The insertion torque (IT), pullout strength (PS), and gripping volume (GV) of each type were measured. Intergroup comparisons and intragroup correlation were investigated by statistical analysis. Type B had the greatest inner–outer diameter ratio (0.67), and Type A had the smallest (0.53). The IT of Type A (5.26 Ncm) was significantly (p = 0.038) lower than that of Type C (8.8 Ncm). There was no significant difference in the pullout strength (p = 0.868). The GV of Type A (9.7 mm3) was significant (p < 0.01) greater than Type C (8.4 mm3). Type C was significant (p < 0.01) greater than Type B (7.2 mm3). Spearman’s rho rank correlation test showed that PS of Type B was correlated significantly with GV. In conclusion, the design of thread and its GV were the important factors on the mechanical strengths of micro-implant.
Medicine and Pharmacology, Dentistry and Oral Surgery
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
