An alternative conversion technique for fabricating an interim fixed implant-supported complete arch prosthesis

Current dental practices often require multiple visits to fabricate implant-supported prostheses. Traditional methods rely on intraoral application of acrylic resin, which can be time-consuming. The need for a more efficient approach has been widely recognized. Some clinicians seek techniques that reduce chair time while maintaining precision. Prior research has shown that polyether impression materials offer good accuracy for soft tissue capture. However, the use of these materials in conversion techniques remains underexplored. This gap motivated the development of an alternative method. The goal is to streamline the fabrication process without compromising fit or function.

This study introduces a modified conversion technique for interim fixed implant-supported complete arch prostheses. The aim is to reduce the time required for intraoral procedures. The method uses an angled implant protocol with four implants as a foundation. A key focus is capturing soft tissue contours accurately. The technique aims to improve the adaptation of the prosthesis to the patient's anatomy. It also seeks to enhance the collaboration between clinicians and technicians. The approach is designed to be practical for routine clinical use. The study evaluates whether this technique can be reliably applied in a clinical setting.

The method begins with placing four implants using an angled protocol. A polyether impression material is used to capture the soft tissue contour. The impression is then used to create a reline jig for autopolymerized resin. A cast is generated from the impression outside the oral cavity. Acrylic resin is applied to this cast to form the prosthesis. The interim copings are picked up during the impression process. The technique avoids intraoral application of acrylic resin. This approach is intended to streamline the fabrication process.

The technique successfully captured the soft tissue contour with high accuracy. The use of polyether material allowed for precise impressions. The reline jig facilitated the application of autopolymerized resin. The prosthesis was adapted to the patient's anatomy effectively. The method reduced the time required for intraoral procedures. Clinicians reported improved efficiency in the workflow. The prosthesis fit well and functioned as intended. The technique demonstrated potential for routine clinical application.

The described technique offers a viable alternative to the conventional conversion method. It minimizes chair time by shifting acrylic resin application to an extraoral setting. The use of polyether material enhances the accuracy of soft tissue capture. The method supports better adaptation of the prosthesis to the patient's anatomy. The angled implant protocol appears to be a key factor in the technique's success. The study suggests that this approach may be suitable for routine use. It may improve the collaboration between clinicians and technicians. The findings align with the authors' goal of streamlining the fabrication process.