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Open AccessEffect of Heat and Sonic Vibration on Penetration of a Flowable Resin Composite Used as a Pit and Fissure Sealant
Effect of Heat and Sonic Vibration on Penetration of a Flowable Resin Composite Used as a Pit and Fissure Sealant
1Department and Research Institute of Dental Biomaterials and Bioengineering, College of Dentistry,Yonsei University, Seoul, Korea
2Department of Pediatric Dentistry, College of Dentistry,,Yonsei University, Seoul, Korea
3College of Dentistry,Yonsei University, Seoul, Korea
*Corresponding Author(s): Kwang-Mahn Kim E-mail: kmkim@yuhs.ac
Abstract
Objective: To evaluate penetration of a flowable resin composite into fissures using three different application methods: (1) conventional, (2) heat, and (3) sonic vibration. Study design: Forty-five sound maxillary third molars were divided randomly into three groups (n=15 per group). The occlusal surfaces of the teeth were etched and flowable resin composites were applied into the fissure using the assigned application method. The crowns were sectioned and examined with an optical microscope to assess penetration. In addition, three-point flexural strength was analyzed. Results: The sonic vibration group exhibited significantly greater penetration into the fissure compared with the other test groups (p<0.001). The heat group exhibited greater penetration into the fissure compared with the conventional group (p=0.003). However, three-point flexural strength was similar among all groups (p>0.05). Conclusions: Sonic vibration and heat increased penetration into fissures. Notably, sonic vibration exhibited the greatest penetration. We found that the application method did not influence the three-point flexural strength.
Keywords
Pit and fissure sealant; Penetration; Sonic vibration; Heat
Cite and Share
Hae-Jung Kim,Hyung-Jun Choi,Ki-Yeol Kim,Kwang-Mahn Kim. Effect of Heat and Sonic Vibration on Penetration of a Flowable Resin Composite Used as a Pit and Fissure Sealant. Journal of Clinical Pediatric Dentistry. 2020. 44(1);41-46.
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