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Stability of immediately loaded 3 mm long miniscrew implants: a feasibility study
Danielle Geshay1, Phillip Campbell2, Larry Tadlock2
1Private practice (Dallas/TX, USA).
Dental Press Journal of Orthodontics
|March 24, 2021
Summary
Shorter 3 mm miniscrew implants (MSIs) have a high failure rate when placed by novice clinicians. However, experience significantly reduces failure, and associated pain is minimal and temporary.
Area of Science:
- Orthodontics
- Dental Implantology
- Biomaterials
Background:
- Miniscrew implants (MSIs) are crucial for orthodontic treatment efficiency.
- Shorter MSIs offer potential advantages but require stability evaluation.
Purpose of the Study:
- To assess the stability, insertion torque, removal torque, and pain associated with 3 mm MSIs.
- To evaluate the outcomes of MSIs placed by a novice clinician in adult patients.
Main Methods:
- 82 3 mm MSIs were inserted into the buccal maxillae of 26 adults.
- Immediate loading with 100g was applied to adjacent MSI pairs.
- Stability, pain, and discomfort were monitored over 8 weeks.
Main Results:
- The overall MSI failure rate was 32.9%, with a primary failure rate of 23.6%.
- Failure rates decreased significantly with clinical experience (46.3% vs 19.5%).
- Pain and discomfort were minimal and temporary, reported only in the first week.
Conclusions:
- 3 mm MSIs placed by novice operators exhibit high failure rates.
- Increased experience with MSI placement substantially reduces failure rates.
- Short MSIs are associated with minimal and transient pain and discomfort.

