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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 39 (2019), No. 2     25. Mar. 2019
Int J Periodontics Restorative Dent 39 (2019), No. 2  (25.03.2019)

Page 165-173, doi:10.11607/prd.3516, PubMed:30794252


The Effect of Dental Implant Collar Design on Crestal Bone Loss at 1 Year After Implant Placement
Randall, Elizabeth Felts / Abou-Arraj, Ramzi V. / Geurs, Nico / Griffin, Russell / Reddy, Michael / Geisinger, Mia
The aim of this randomized, prospective study was to compare clinical and radiographic outcomes of microtextured implants with two different collar designs at 1 year postplacement. A total of 69 implants were assessed in 58 patients for site, patient-specific, and clinician-experience variables. Overall implant survival was 94.9%. A statistically significant preservation of crestal bone was observed in the microgrooved-collar group. Narrow implant diameter was associated with a statistically significant increase in crestal bone loss. Collar design and implant diameter may be important in limiting adverse esthetic and bone loss outcomes during initial function.