Comparing Titanium and Gold-Coated Abutment Screws for Immediate Loading of Dental Implants in Partially Edentulous Patients. Four-year post-loading results from a randomised controlled trial


Submitted: 31 July 2023
Accepted: 10 October 2023
Published: 23 October 2023
Abstract Views: 256
PDF: 169
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Authors

  • M. Glibert Resident, Department of Periodontology and Oral Implantology, Dental School, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
  • V. Christiaens Professor, Department of Periodontology and Oral Implantology, Dental School, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
  • M. Ardans Dental student, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Italy.
  • M. Roelens Dental student, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
  • P. Östman Adjunct Professor, College of Medicine and Dentistry, James Cook University, Townsville, Australia - Private Practice in Falun, Sweden.

Aim To compare the clinical outcome of titanium versus gold-coated abutment screws for immediately loaded implants in partially edentulous patients. 

Materials and Methods One-hundred implants inserted with a torque superior to 25 Ncm in 59 partially edentulous patients were randomly allocated to receive titanium (49 implants) or gold-coated abutment screws (51 implants). Implants could be placed also as immediate post-extractive implants and were loaded immediately with single screw-retained crowns, replaced after 4 months by definitive ones. Outcome measures were crown and implant failures, and peri-implant marginal bone loss. 

Results At four years after loading 49 patients remained in the study with 77 implants rehabilitated with 39 titanium and 38 implants with gold-coated abutment screws. No implant or crown failed. Peri-implant mean marginal bone loss from implant placement was 0.67 ± 1.30 mm at titanium screws and 0.46 ± 1.62 mm at gold-coated screws with no statistically significant differences between the two screw types (mean difference = 0.21 mm, 95%CI -0.46 to 0.88, p = 0.53). 

Conclusions Within the limitations of this study, it can be concluded that the type of implant-abutment screw does not significantly affect peri-implant crestal bone. In addition, immediate implant placement and loading seems to be viable treatment alternatives.


Glibert, M., Christiaens, V., Ardans, M., Roelens, M., & Östman, P. (2023). Comparing Titanium and Gold-Coated Abutment Screws for Immediate Loading of Dental Implants in Partially Edentulous Patients. Four-year post-loading results from a randomised controlled trial. Journal of Osseointegration, 15(4), 243–248. https://doi.org/10.23805/JO.2023.595

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