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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 27 (2012), No. 6     1. Dec. 2012
Int J Oral Maxillofac Implants 27 (2012), No. 6  (01.12.2012)

Page 1554-1559, PubMed:23189310


Two-Year Follow-up of Early- and Conventionally-Placed Two-Stage Implants Supporting Fixed Prostheses
Bekcioglu, Burak / Sagirkaya, Elcin / Karasoy, Durdu / Cehreli, Murat
Purpose: The objective of this study was to compare the biologic and prosthetic outcomes of early- and conventionally-placed implants supporting fixed prostheses.
Materials and Methods: Using inclusion/ exclusion criteria, early- and conventionally-placed implant patient groups, rehabilitated with Brånemark System implants supporting fixed prostheses for 2 years, were selected from the patient archives. Kaplan- Meier survival estimates, time-dependent marginal bone loss, Plaque Index, peri-implant infection, Bleeding Index scores, and prosthetic complications data of the groups were compared.
Results: A total of 212 implants were placed in early-placed (n = 42, 101 implants) and conventionally-placed (n = 45, 111 implants) patient groups and 5 implants failed during the 2-year follow-up. The 1- and 2-year Kaplan-Meier survival probabilities of early-placed (0.98) and conventionally-placed (0.973) groups were comparable (P =.735). The 6-month to 2-year marginal bone loss in the conventionally-placed group was higher than in the earlyplaced group (P < .05). There were differences between groups on soft tissue scores between the 2 years of function (P < .05). The frequency of prosthetic complications was very low and comparable in both groups (P = .476).
Conclusions: Early- and conventionally-placed implants supporting fixed prostheses showed comparable clinical outcomes during the 2-year follow-up, although the marginal bone loss was higher in the latter group.

Keywords: conventional implant placement, early implant placement, marginal bone loss, peri-implant soft tissue, prosthetic complication