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Implant screw mechanics and the settling effect: overview
Sheldon Winkler1, Karla Ring, Jamie D Ring
1Temple University School of Dentistry, 3223 North Broad Street, Philadelphia, PA 19140-5096, USA. swinkdent@aol.com
The Journal of Oral Implantology
|November 19, 2003
Summary
Dental implant screw loosening is a common issue. Retightening screws 10 minutes after initial torque and using mechanical torque gauges ensures implant stability and prevents fractures.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Mechanical Engineering
Background:
- Screw loosening and fracturing are prevalent complications in dental implant restorations.
- These issues can compromise the long-term success and stability of dental implants.
- The settling effect can lead to a reduction in the initial preload applied to implant screws.
Purpose of the Study:
- To investigate methods for preventing loosening and fracturing of dental implant screws.
- To emphasize the importance of routine retightening procedures.
- To recommend the use of specific tools for accurate torque application.
Main Methods:
- Review of clinical procedures for dental implant restoration.
- Analysis of the mechanical principles behind screw loosening.
- Comparison of torque application methods (hand drivers vs. mechanical torque gauges).
Main Results:
- Retightening implant screws 10 minutes after initial torque application effectively compensates for the settling effect.
- Mechanical torque gauges ensure consistent and accurate tightening, unlike hand drivers.
- Proper torque control is crucial for preventing screw complications.
Conclusions:
- Routine retightening of dental implant screws is a necessary clinical procedure.
- Utilizing mechanical torque gauges is recommended for precise and reliable component tightening.
- Adherence to manufacturer-recommended torque values and procedures enhances implant longevity.