Clinical Performance of Narrow Versus Standard Diameter Dental Implants: A Comparative Retrospective Split-Mouth Study

The clinical outcomes of NDIs with an internal connection were comparable to SDIs in terms of survival rates and marginal bone loss over a three-year period. While technical complications were only seen in NDIs, the overall performance supports their use as a viable alternative to SDIs, particularly in cases with limited bone width or restricted interdental spaces. The outcomes of single and splinted restorations were similarly favorable in the anterior or posterior regions of both jaws.