Abstract
This study was conducted to investigate clinical evaluation of the POI®3-piece implant system (Kyocera, Japan), and follow-up was performed for 2 years after placement of the superstructures.Twenty-three fixtures were inserted and were clinically examined. The clinical parameters were probing depth, bleeding on probing, and other clinical points at 1 year,1 year 6 months, and 2 years after the placement of the superstructures. Probing depth at 1 year ranged from 0.5 mm to 1.5 mm (mean: 1.0 mm), and no bleeding on probing was recognized around the fixtures.
At 1 year 6 months, the probing depth of every fixture indicated the same as at 1 year, and 3 fixtures showed bleeding on probing. The probing depth at 2 years ranged from 1.0 mm to 2.0 mm (mean: 1.2 mm). The probing depth around 5 fixtures increased, and 3 fixtures showed bleeding on probing. However, these implants were clinically maintained and no unusual bone resorption around fixtures was indicated by X-ray photography at 2 years.
It was considered that these results were achieved by plaque control. From this point of view, it was suggested that plaque control was a very important factor for prevention of peri-implantitis.
