Correlation between interimplant distance and crestal bone loss in internal connection implants with platform...

Area of Science:

• Dental Implantology
• Periodontology
• Biomaterials Science

Background:

• Crestal bone loss around dental implants is a critical factor in long-term success.
• Platform switching in internal connection implants is a design feature that may influence bone levels.
• Understanding the impact of interimplant distance is crucial for optimizing implant placement and preserving bone height.

Purpose of the Study:

• To evaluate the effect of varying interimplant distances on crestal bone loss.
• To assess the influence of platform switching on bone remodeling between implants.
• To analyze radiographic evidence of marginal bone loss in relation to implant spacing.

Main Methods:

• Radiographic evaluation of internal connection implants with platform switching in patients missing two consecutive posterior teeth.
• Measurement of bone level changes using digital periapical radiographs and subtraction analysis.
• Analysis of crestal bone loss between implants and marginal bone loss (horizontal and vertical) in relation to interimplant distance (≤3 mm vs. >3 mm).

Main Results:

• No statistically significant difference in mean crestal bone loss between implants with ≤3 mm and >3 mm interimplant distances (-0.26 ± 0.14 mm vs. -0.23 ± 0.29 mm, P > .05).
• Regression analysis showed no significant correlation between interimplant distance and crestal bone loss (P = .765).
• Mean horizontal and vertical marginal bone loss values were minimal and not significantly different between the two groups.

Conclusions:

• Interimplant distance does not appear to influence crestal bone loss in the short term for internal connection implants with platform switching.
• Observed marginal bone loss was minimal, suggesting that overlapping bone loss between implants is unlikely.
• Further long-term studies are warranted to confirm these findings.