Provisional and definitive prostheses following sinus lift and augmentation procedures

Area of Science:

• Dental implantology
• Oral surgery
• Prosthodontics

Background:

• Atrophic posterior maxilla presents challenges for dental implant placement.
• Sinus lift and augmentation are established techniques to address maxillary bone deficiency.
• Cylindrical root form implants offer a solution for restoring function in compromised bone sites.

Purpose of the Study:

• To evaluate the efficacy of sinus lift and augmentation with simultaneous implant placement.
• To emphasize the role of a second-stage provisional prosthesis in managing these procedures.
• To discuss modifications in prosthesis fabrication following sinus augmentation.

Main Methods:

• Simultaneous sinus lift, augmentation, and placement of cylindrical root form implants.
• Utilization of a metal-reinforced acrylic resin provisional restoration for long-term use.
• Progressive loading protocols and implant management strategies were employed.

Main Results:

• Successful treatment of atrophic posterior maxilla using the described approach.
• The provisional prosthesis facilitated implant assessment, treatment, or removal.
• Progressive loading was achievable prior to definitive prosthesis fabrication.

Conclusions:

• Sinus lift and augmentation with simultaneous implant insertion is a viable treatment for the atrophic posterior maxilla.
• A long-term second-stage provisional prosthesis is crucial for managing potential complications and optimizing outcomes.
• Prosthesis design modifications are important for successful rehabilitation after sinus augmentation procedures.