Implant-retained mandibular overdentures with ITI implants.

Area of Science:

• Oral and Maxillofacial Surgery
• Prosthodontics
• Biomaterials Science

Background:

• Dental implant therapy aims to restore function and aesthetics.
• Osseointegration is crucial for long-term implant success.
• Traditional implant loading protocols involve a delayed healing period.

Purpose of the Study:

• To compare immediate versus delayed loading of implant-retained mandibular overdentures.
• To evaluate clinical and radiographic parameters over a 2-year follow-up.
• To assess implant survival rates and patient satisfaction.

Main Methods:

• Prospective study with 20 patients randomly assigned to immediate (test) or delayed (control) loading groups.
• Four ITI implants placed in the mandible, immediately or conventionally loaded with a U-shaped Dolder bar overdenture.
• Clinical parameters (MPI, MBI, PD, Periotest) and bone resorption assessed over 2 years.

Main Results:

• One implant failure in the delayed loading group; no failures in the immediate loading group.
• No statistically significant differences in evaluated clinical parameters between groups.
• Successful osseointegration and short-term survival rates observed in both immediate and delayed loading groups.

Conclusions:

• Immediate loading of implants connected with a U-shaped bar is a viable alternative to delayed loading.
• This technique achieves comparable osseointegration and implant survival rates.
• Immediate loading shortens the overall treatment duration, improving patient satisfaction.