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Volume 41 , Issue 6
November/December 2021
Pages e233–e242

Clinical and Radiographic Outcomes of Implants with Two Different Collar Surfaces in Treated Periodontitis Patients: A 10-Year Retrospective Study

Vincenzo Iorio-Siciliano, DDS, PhD/Andrea Blasi, DDS, PhD/Alessandro Iorio-Siciliano, DDS/Gaetano Isola, DDS, PhD/Luca Ramaglia, MD, DDS

PMID: 34818389
DOI: 10.11607/prd.4819

This retrospective study compares clinical and radiographic results of implants with and without a laser-microtextured collar placed in patients with a past history of periodontitis after 10 years of follow-up. A total of 57 implants (29 implants with laser-microtextured collar, 28 implants with a smooth collar) were placed in 35 patients. After 10 years of follow up, the survival rates (SRs) were 87.9% and 84.8% for implants with and without a laser-microtextured collar, respectively. No statistically significant differences (P > .05) were found between groups in terms of full-mouth plaque and bleeding scores. However, a statistically significant difference (P < .05) was recorded in terms of probing depth (PD) and marginal bone loss (mBL). Within the limitations of this study, implants with a laser-microtextured collar and implants with a smooth collar placed in patients with a past history of periodontitis yielded no statistically significant differences in SRs after 10 years of follow-up. However, implants with a laser-microtextured collar showed lower PD and mBL compared to implants with a smooth collar.

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