Farklı mekanik aletlerin implant yüzeylerindeki etkileri

The aim of this study is in vitro evaluation of the effects of different mechanical treatment instruments on titanium implant surfaces. For this purpose, thirty ink-stained implants which are inserted in standardized epoxy resin models with narrow defect angulations (30°) are used in three different study groups. The standardized peri-implantitis models are covered by a non-transparent custom-made mucosa mask to provide the visual display of gingiva for simulating of non-surgical mechanical therapy. An air powder abrasive device using trehalose powder with a special nozzle for subgingival application (APAD) (n=10), an ultrasonic device with a special designed implant tip (NUS) (n=10), and an ultrasonic device with a subgingival tip (VUS) (n=10) were used. A blinded and calibrated examiner evaluated the standardized photographs of instrumented implant surfaces with image-processing software. The total cleaned area of APAD group was found significantly higher than both NUS (p:0.020, p<0.05) and VUS (p:0.022, p<0.05) groups. The average percentage of cleaned area of APAD group was significantly higher than both NUS (p:0.017, p<0.05) and VUS (p:0.044, p<0.05) groups. Within the limits of this in vitro study the air abrasive device demonstrated better cleaning performance than the two different power-driven ultrasonic devices, although, complete surface cleanliness was not achieved in any of the three instrumentation methods during non-surgical treatment simulation of peri-implant defects. Further microbiological and clinical research are needed to confirm the clinical relevance of the in vitro findings.