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Are Sleeves Necessary in Static Computer-Assisted Implant Surgery? A Comparative In Vitro Analysis
1Advanced Educational Program in Periodontics, Department of Diagnostic and Surgical Sciences, Marquette University School of Dentistry, Milwaukee, Wisconsin, USA.
Clinical Oral Implants Research
|October 7, 2024
Summary
Sleeveless surgical guides demonstrate superior accuracy compared to sleeved guides in dental implantology. Accuracy decreases as the distance between the guide and implant platform increases, highlighting the importance of guide design.
Area of Science:
- Dental Implantology
- Surgical Guide Design
- Computer-Aided Implantology
Background:
- Surgical guides are crucial for accurate implant placement in digital dentistry.
- The presence or absence of sleeves in surgical guides can influence their precision.
- Understanding the impact of sleeve-to-bone distance is essential for optimizing guide design.
Purpose of the Study:
- To compare the trueness and precision of dental surgical guides with sleeves versus those without sleeves.
- To evaluate the effect of varying sleeve-to-bone distances on the accuracy of implant placement.
Main Methods:
- 120 mandible replicas were used, divided into sleeved (S) and sleeveless (SL) groups.
- Each group was further categorized by guide-to-implant platform height (2mm, 4mm, 6mm).
- Angular and 3D deviations were measured post-operatively using scan bodies and lab scanners.
Main Results:
- Sleeveless guides (Group SL) showed significantly less angular deviation (1.65° ± 0.93°) than sleeved guides (Group S) (2.41° ± 1.41°).
- Angular deviation increased with greater sleeve-to-bone distance in both groups.
- 3D deviations at the implant platform and apex were also significantly lower for sleeveless guides.
Conclusions:
- Sleeveless surgical guides offer higher accuracy and precision in implant placement compared to sleeved guides.
- The distance from the surgical guide to the implant platform significantly influences angular deviation.
