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Effects of Different Undersizing Site Preparations on Implant Stability
Bernardo Ferreira Lemos1,2, Paula Lopez-Jarana2, Carlos Falcao1,2
1Faculty of Health Sciences, Fernando Pessoa University, 4249-004 Porto, Portugal.
International Journal of Environmental Research and Public Health
|December 5, 2020
Summary
Undersized surgical preparation sites can enhance dental implant stability. Reducing preparation size and omitting the cortical drill increased insertion torque and implant stability quotient, crucial for osseointegration.
Area of Science:
- Dental Implantology
- Biomaterials Science
- Surgical Techniques
Background:
- Immediate loading protocols are increasingly common in dental implantology.
- Primary implant stability is critical for successful osseointegration.
- Understanding factors influencing primary stability is essential for predictable clinical outcomes.
Purpose of the Study:
- To evaluate the impact of undersized surgical preparation on insertion torque (IT) and implant stability quotient (ISQ).
- To compare standard preparation with modified undersized techniques for dental implants.
Main Methods:
- Four preparation protocols were tested on bovine bone: standard (P1) and three undersized (P2, P3, P4).
- VEGA implants (Klockner Implant System) were used with n=40 per group.
- Insertion torque (IT) measured with a torquemeter; implant stability quotient (ISQ) measured with Penguin RFA.
Main Results:
- Both IT and ISQ generally increased with reduced preparation size.
- Techniques without a cortical drill (P2, P4) yielded higher stability than standard preparation.
- Not all increases in IT and ISQ were statistically significant compared to the standard method (p < 0.05).
Conclusions:
- Reducing implant preparation size can positively influence IT and ISQ.
- Omitting the cortical drill appears to be an effective strategy for enhancing implant stability.
- Careful consideration is advised when implementing these techniques due to potential limitations.
