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Cross-pinning: the philosophy of retrievability applied practically to fixed, implant-supported prostheses
M J Gervais1, P Hatzipanagiotis, P R Wilson
1Prosthodontist in private practice, Gold Coast, Queensland. mark@coynedental.com.au
Australian Dental Journal
|February 29, 2008
Summary
Cross-pinning offers a retrievable solution for fixed implant-supported prostheses, addressing common complications. This technique enhances prosthetic management by securing restorations to milled abutments, regardless of implant alignment.
Area of Science:
- Dental Implantology
- Prosthodontics
- Biomaterials Engineering
Background:
- Biologic and technical complications frequently impact fixed, implant-supported prostheses, affecting function and aesthetics.
- Prosthetic retrievability is a key advantage in implant dentistry for managing complications without restoration damage.
Purpose of the Study:
- To present guidelines for the cross-pinning technique in implant-supported prostheses.
- To enhance the management of complications associated with fixed implant prostheses.
Main Methods:
- Developed guidelines for cross-pinning based on resistance form, screw mechanics, and natural tooth contours.
- Discussed technical aspects of cross-pinning using case examples from four distinct dental implant systems.
Main Results:
- Established a technique for securing prostheses to milled implant abutments using a transverse screw (cross-pinning).
- Demonstrated prosthetic retrievability independent of dental implant alignment.
Conclusions:
- Cross-pinning provides a viable method for achieving retrievability in implant-supported prostheses.
- The presented guidelines facilitate the application of cross-pinning, improving complication management in implant dentistry.