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Effects of different cavity-disinfectants and potassium titanyl phosphate laser on microtensile bond strength to
F Oznurhan1, C Ozturk, E Sungurtekin Ekci
1Department of Pediatric Dentistry, Cumhuriyet University, Faculty of Dentistry, Sivas/Turkiye, Turkey.
Aim:
The aim of this in vitro study was to compare the effects of different cavity-disinfectants and potassium titanyl phosphate (KTP) laser on microtensile bond strength to primary dentin. Chlorhexidine (CHX), propolis (PRO), ozonated water (OW), gaseous ozone (OG) and KTP laser were used for this purpose.
Methodology:
Twelve primary molar teeth were used in this study. One-third of the teeth (from coronal portion) were removed to obtain flat surfaces. After applying the cavity-disinfectants, an adhesive (prime and bond NT) was applied to dentin surfaces, and composite crowns were built up. One group received no pretreatment and was set as a control (CONT). Ten sticks were obtained from these samples and were stressed in tension until failure using a universal testing machine and the data were recorded.
Results:
The mean strength values (in MPa) of the sticks were OW (11.12) > KTP (9.58) > CHX (7.58) > PRO (7.42) > CONT (6.38) > OG (5.84) and OW showed significantly higher results than the other groups, except KTP group (P < 0.05).
Conclusions:
OW and KTP might be used safely without compromising the bond strength of restorative materials.
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