An Exploratory Clinical Investigation Evaluating Two Abutment Surfaces

A total of 22 subjects will be included in the study. The subjects who were treated with NobelActive TiUnite and On1 machined abutment will be enrolled in the control group and subjects who were treated with NobelActive TiUltra and On1 Base Xeal abutments will be enrolled in the test group. Two peri-implant crevicular fluid (PICF) samples will be collected for immunological testing and two plaques samples will be collected for microbiological testing from all the enrolled subjects one from the control/test implant site and one from the contralateral tooth/implant site. 3 weeks after the first sampling PICF and plaques sampling will be repeated the same way.