Three-year data from a randomizd, controlled study of early loading of single-stage dental implants supporting...

Area of Science:

• Dental Implantology
• Prosthodontics
• Oral Surgery

Background:

• Conventional implant loading protocols involve a 3-4 month healing period for osseointegration.
• Early loading protocols are being investigated to reduce treatment time for edentulous patients.
• Maxillary rehabilitation with full-arch prostheses presents unique challenges.

Purpose of the Study:

• To compare early (< or = 14 days) versus conventional (3-4 months) implant loading outcomes in the edentulous maxilla.
• To evaluate biologic and technical treatment results and patient satisfaction.
• To establish the viability of early loading protocols in this patient population.

Main Methods:

• A 3-year randomized controlled trial (RCT) involving 24 patients with completely edentulous maxillae.
• Patients were randomized into early loading (n=16) and conventional loading (n=8) groups.
• Solid screw-type titanium implants (SLA surfaces) were used, with clinical and radiographic assessments over 36 months post-loading.

Main Results:

• A 100% cumulative implant success rate was observed at 3 years post-loading.
• The early loading group showed significantly better mean and distal crestal bone levels at 3 years.
• Tooth-crown fracture was the most common adverse event in both groups; no other significant differences were noted.

Conclusions:

• Early loading (approx. 2 weeks) is a viable alternative to the standard 3-4 month protocol for complete implant-supported fixed prostheses in the edentulous maxilla.
• This RCT provides evidence supporting early loading in maxillary rehabilitation.
• Further research may explore long-term outcomes and specific patient factors influencing success.