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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 39 (2019), No. 6     28. Oct. 2019
Int J Periodontics Restorative Dent 39 (2019), No. 6  (28.10.2019)

Page 875-882, doi:10.11607/prd.3983, PubMed:31613949


Implant-Gingival Unit Stability Around One-Stage Implant with Laser-Microgrooved Collar: Three-Year Result of a Prospective Study
Guarnieri, Renzo / Di Nardo, Dario / Gaimari, Gianfranco / Miccoli, Gabriele / Testarelli, Luca
The aim of the present prospective study was to evaluate the stability of periimplant soft tissue and the stability of the implant-gingival unit (IGU) around one-stage titanium implants with a laser-microgrooved collar surface following 3 years of loading. Thirty one-stage titanium implants with a laser-microgrooved collar surface were placed in 30 partially edentulous patients. Clinical and radiographic examinations were carried out at implant placement, after a period of 4 to 6 months free of masticatory loading, and after 3 years of function. Plaque Index (PI), modified sulcus bleeding index (SBI), probing depth (PD), distance between the implant coronal margin and the mucosal margin (DIM), clinical attachment level (CAL), and keratinized tissue width (KTW) and thickness (KTT) were recorded. Radiographic marginal bone levels (MBL) were assessed at the mesial (MI) and distal (DI) aspects of implant sites. In addition, the influence of KTT on IGU stability was investigated. No implants failed during the follow-up period. Compared to baseline, PI, BPI, PD, DIM, CAL, KTW, MBL, and IGU showed differences that were not statistically significant (P > .05). Moreover, IGU didn't show a statistical correlation with KTT. Within the limitations of the present study, it can be concluded that around one-stage implants with laser-microgrooved collar, the peri-implant tissues and IGU remain stable over the three evaluation periods.