Stabilization investment template for direct casting connection of implant framework segments

Area of Science:

• Dental Materials Science
• Prosthodontics
• Biomaterials Engineering

Background:

• Achieving passive fit in multi-unit implant frameworks is crucial for long-term success.
• Sectioning frameworks can facilitate adaptation but requires precise rejoining.
• Current methods for framework reconnection may compromise fit and structural integrity.

Purpose of the Study:

• To present a reproducible procedure for stabilizing and reconnecting sectioned implant frameworks.
• To ensure a passive fit of the reconstructed framework to implant analogs.
• To utilize direct metal casting for framework reconnection.

Main Methods:

• Fabrication of a casting investment template for framework stabilization.
• Adaptation of the sectioned framework to implant analogs on a master cast.
• Waxing and spruing of the sectioned framework joints within the template.
• Investment of the template and framework assembly in a casting ring.
• Completion of the direct metal casting procedure for framework reconnection.

Main Results:

• The procedure successfully stabilized the sectioned implant framework.
• The casting investment template facilitated accurate repositioning of framework segments.
• Direct metal casting enabled seamless reconnection of the framework components.
• The reconnected framework maintained a passive fit to the implant analogs.

Conclusions:

• The described technique offers a reliable method for managing and reconnecting sectioned implant frameworks.
• Utilizing a casting investment template enhances precision and passive fit during framework reconstruction.
• This procedure simplifies the process of achieving well-fitting, multi-unit implant restorations.