Surgical, prosthetic, and systemic factors associated with radiographic marginal bone levels in two-implant-supported splinted restorations: a retrospective study
Year: 2026
Type: article
Study design: Observational Study
Abstract: PURPOSE: This study evaluated the influence of surgical, prosthetic, and systemic factors on marginal bone loss (MBL) in patients restored with two-implant-supported splinted prostheses using radiographic assessment. MATERIALS AND METHODS: < .05). RESULTS: A total of 276 implants in 127 patients were analyzed (mean follow-up, 2.2 years). Greater implant insertion depth and external implant-abutment connections were significantly associated with increased MBL, whereas concave emergence profiles were associated with reduced MBL. Implant dimensions, inter-implant distance, bone grafting, systemic conditions, age, and sex were not significantly associated with MBL. The relatively short mean follow-up period (2.2 years) should be considered when interpreting these findings. CONCLUSION: Within the limitations of this retrospective radiographic study, implant insertion depth, implant-abutment connection type, and emergence profile were significantly associated with MBL in two-implant-supported splinted restorations. Careful consideration of these factors may contribute to improved peri-implant tissue stability, although longer-term studies are needed to confirm these findings.
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W7223008839