Clinical and Radiographic Performance of Two Distinct Sandblasted, Large-Grit, Acid-Etched Implant Surfaces: A...

Area of Science:

• Dental Implantology
• Biomaterials Science
• Periodontology

Background:

• Dental implant surface modifications aim to enhance osseointegration and long-term stability.
• Sandblasted, large-grit, acid-etched (SLA) surfaces are widely used, with newer modifications like hydrophilic treatments being introduced.

Purpose of the Study:

• To compare the clinical performance of modified hydrophilic SLA implant surfaces versus conventional SLA surfaces.
• To evaluate radiographic marginal bone level (MBL) changes at 12 months post-loading as the primary outcome.

Main Methods:

• A randomized, split-mouth, dual-center clinical trial.
• Each patient received one test (modified hydrophilic) and one control (conventional) implant.
• Primary endpoint: MBL change at 12 months; Secondary: wound healing index, adverse events, implant stability quotient (ISQ), soft tissue parameters, and oral health-related quality of life (OHRQoL).

Main Results:

• 68 subjects and 136 implants were analyzed.
• No statistically significant differences were observed between the modified hydrophilic and conventional implant groups for MBL change (p=0.658).
• Secondary clinical outcomes, including ISQ and soft tissue parameters, also showed no significant differences between the groups.

Conclusions:

• Both modified hydrophilic and conventional SLA implant surfaces exhibit comparable clinical performance over 12 months of functional loading.
• The surfaces demonstrated similar safety profiles and maintained peri-implant bone stability.
• No significant differences in marginal bone level changes, implant stability, or soft tissue health were found between the tested implant surfaces.