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Influence of tip wear of piezoelectric ultrasonic scalers on root surface roughness at different working parameters. A profilometric and atomic force microscopy study
Author(s) -
Arabaci T,
Cicek Y,
Dilsiz A,
Erdogan İY,
Kose O,
Kizildağ A
Publication year - 2013
Publication title -
international journal of dental hygiene
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.674
H-Index - 38
eISSN - 1601-5037
pISSN - 1601-5029
DOI - 10.1111/idh.12003
Subject(s) - profilometer , surface roughness , ultrasonic sensor , materials science , atomic force microscopy , surface finish , dentistry , composite material , biomedical engineering , medicine , nanotechnology , radiology
Roughness on tooth surfaces is reported to facilitate the reestablishment of microbial dental plaque. Hence, the main goal of dental scaling is to remove bacterial plaque and obtain smoother tooth surfaces. This study was aimed to assess the influence of tip wear of ultrasonic scaler inserts on root surface roughness at different working parameters. Twenty piezoelectric ultrasonic scaler inserts (10 worn/10 new) were selected to examine the erosion ratio ( ER ) on the scaler tips and to assess the influence of tip wear on root surface roughness. Erosion on the tip surfaces was evaluated under atomic force microscopy ( AFM ). Root samples were prepared and instrumented by new (Group I) and worn (Group II) inserts at different working parameters. Roughness change (Rc) on root surfaces after instrumentation was examined under profilometer and compared between and within the groups. Statistically significant differences were found between the mean ER s of new and worn tips ( P < 0.01). The results of this study showed that tip angulation and instrument power strongly influenced the Rc values on instrumented samples ( P < 0.05). It was also revealed that tip wear influenced the Rc values on root surfaces especially at 45° tip angulation ( P < 0.05). Therefore, tip wear should also be considered as much as the other parameters to minimize the surface roughness during ultrasonic treatment.