Related Experiment Video
Updated: Apr 23, 2026
05:54
Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
2.1K
Optimal asymmetric thread for orthodontic microimplants: Laboratory and clinical evaluation.
Raed H Alrbata1, Do-Won Ha2, Wonjae Yu3
1a Former Research Assistant, Department of Orthodontics, School of Dentistry, Kyungpook National University, Daegu, Korea.
The Angle Orthodontist
|October 7, 2014
Summary
The new asymmetric thread design significantly improved microimplant performance in laboratory tests, showing better insertion torque and stability. Clinical results also favored the new design, suggesting its superiority for dental applications.
Area of Science:
- Biomaterials Engineering
- Dental Implantology
- Orthodontics
Background:
- Microimplants are crucial for orthodontic anchorage.
- Optimizing microimplant design can enhance stability and clinical outcomes.
- Asymmetric thread designs offer potential advantages in bone integration and retention.
Purpose of the Study:
- To evaluate the performance of microimplants with a novel asymmetric thread design.
- To compare the insertion characteristics and stability of experimental microimplants against a control group.
Main Methods:
- Three microimplant designs were tested: control (v-shaped thread) and two experimental (asymmetric thread, Taper 1.0 and Taper 1.25).
- Artificial bone blocks (soft and hard) were used to assess peak insertion torque, insertion time, Periotest values (PTV), and torsional strength.
- Clinical evaluation was conducted over a 3-month period.
Main Results:
- Experimental groups showed significantly better peak insertion torque, insertion time, and PTV compared to the control.
- The Taper 1.25 group demonstrated a higher clinical success rate (87.2%) than the control group (75.6%), though this difference was not statistically significant.
Conclusions:
- The new asymmetric thread design demonstrated superior performance in laboratory settings.
- While clinical results were not statistically significant, the trend favored the asymmetric thread, indicating its potential clinical benefit.
