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:: Volume 5, Issue 1 (March- 2016) ::
Caspian J Dent Res 2016, 5(1): 43-46 Back to browse issues page
Evaluating the effect of dentin surface pretreatment on the static contact angle of a drop of a bonding agent: an in vitro study
Mehrdad Barekatain, Parvin Mirzakoucheki Boroujeni, Shahriar Shahriari *
,Biomaterials Research Center, Department of Operative Dentistry, Isfahan(Khorasgan) Branch, Islamic Azad University, Isfahan, Iran. , shahriari.shahriar@yahoo.com
Abstract:   (6115 Views)

Introduction: The aim of this study was to investigate the effect of dentinal pretreatment on the static contact angle of a bonding agent as a measure of dentin surface wettability.

Materials &Methods: Twenty mid-coronal dentin surfaces were prepared and randomly allocated to four groups (n=5) according to the priming solutions. All segments were etched with 35% phosphoric acid gel for 15 s, rinsed for 30 s and dried. Each group was rehydrated with 10 µL of distilled water, 0.2 % chlorhexidine, 70% ethanol and 5.25% Sodium Hypochlorite respectively and the excess solution was removed after 60 sec using an absorbent paper. Using a micro syringe, a droplet of the Adper Single Bond 2 was placed on each prepared surface. Then the profile and the static contact angle of the droplet were analyzed with a video-based optical contact angle measuring system. The statistical analysis was performed using One-way ANOVA and Dunnett’s t tests (p<0.05).

Results: There was a statistically significant difference between the water and sodium hypochlorite groups which indicates the negative effect sodium hypochlorite may have on dentinal surface energy. (p=0.013). The differences between the water and ethanol groups (p=0.168) and between the water and chlorhexidine groups (p=0.665) were not significant.

Conclusion: The use of 5.25% sodium hypochlorite as a priming solution in bonding procedure is not recommended. There is no improvement in dentinal surface wettability by using 70% ethanol or 0.2% chlorhexidine instead of water and the recommendation for use of any of the two should be based on other long-term or short-term effects they may have on the bonding procedure.

Keywords: Chlorhexidine, Dental bonding, Ethanol, Sodium hypochlorite, Wettability
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Type of Study: Short Communications | Subject: Restorative Dentistry
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Barekatain M, Mirzakoucheki Boroujeni P, Shahriari S. Evaluating the effect of dentin surface pretreatment on the static contact angle of a drop of a bonding agent: an in vitro study. Caspian J Dent Res. 2016; 5 (1) :43-46
URL: http://cjdr.ir/article-1-166-en.html

Volume 5, Issue 1 (March- 2016) Back to browse issues page
مجله تحقیقات دندانپزشکی کاسپین Caspian Journal of Dental Research
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