PMID- 26702663 OWN - NLM STAT- MEDLINE DCOM- 20160401 LR - 20181202 IS - 1002-0098 (Print) IS - 1002-0098 (Linking) VI - 50 IP - 8 DP - 2015 Aug TI - [Development of novel self-healing and antibacterial resin composite containing microcapsules filled with polymerizable healing monomer]. PG - 469-73 AB - OBJECTIVE: To develop novel self- healing and antibacterial resin composite containing microcapsules filled with polymerizable healing monomer, and to measure its properties for further clinical application. METHODS: Microcapsules filled with healing monomer of triethylene glycol dimethacrylate were synthesized according to methods introduced in the previous research. Microcapsules were added into novel resin composite containing nano-antibacterial silica fillers grafted with long chain alkyl quaternary ammonium at mass fractions of 0, 2.5%, 5.0%, 7.5% or 10.0%. A commercial resin composite (Tetric N-Ceram) was used as control. Flexural test was used to measure resin composite flexural strength and elastic modulus. The single edge V-notched beam method was used to measure fracture toughness and self-healing efficiency. Scanning electron microscope (SEM) was used to examine the fractured surface of selected specimen for investigation of fracture mechanisms. RESULTS: The flexural strength and elastic modulus of the resin composite were (96.4 +/- 14.3) MPa and (6.2 +/- 1.1) GPa respectively after incorporation of microcapsules up to 7.5%, and no significant difference was found between the experimental group and the control group [(99.1 +/- 11.9) MPa and (6.1 +/- 1.1) GPa] (P>0.05). The self-healing efficiency of (66.8 +/- 7.0)% and (79.3 +/- 9.7)% were achieved for resin composite with microcapsule mass fractions at 7.5% and 10.0%. SEM image showed that irregular films covered the fractured surface. Conclusions This novel self-healing and antibacterial resin composite containing microcapsules filled with polymerizable healing monomer exhibited a promising self- healing ability, which enabled itself well up for combating bulk fracture and secondary caries in clinical application. FAU - Wu, Junling AU - Wu J AD - Department of Prosthodontics, School of Stomatology, Shandong University; Shandong Provincial Key Laboratory of Oral Biomedicine, Jinan 250012, China. FAU - Zhang, Qiang AU - Zhang Q FAU - Zhu, Ting AU - Zhu T FAU - Ge, Jianhua AU - Ge J FAU - Zhou, Chuanjian AU - Zhou C AD - Research Institute of Polymer Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, China, Email: zhouchuanjian@sdu.edu.cn. LA - chi PT - Journal Article PL - China TA - Zhonghua Kou Qiang Yi Xue Za Zhi JT - Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology JID - 8711066 RN - 0 (Anti-Bacterial Agents) RN - 0 (Capsules) RN - 0 (Composite Resins) RN - 0 (Polymethacrylic Acids) RN - 0 (Tetric ceram) RN - 14I47YJ5EY (triethylene glycol dimethacrylate) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate) RN - 7631-86-9 (Silicon Dioxide) SB - IM MH - *Anti-Bacterial Agents MH - Bisphenol A-Glycidyl Methacrylate/*chemical synthesis MH - Capsules MH - Composite Resins/chemistry MH - Drug Compounding/methods MH - Elastic Modulus MH - Humans MH - Microscopy, Electrochemical, Scanning MH - Polyethylene Glycols/*chemistry MH - Polymerization MH - Polymethacrylic Acids/*chemistry MH - *Silicon Dioxide EDAT- 2015/12/26 06:00 MHDA- 2016/04/02 06:00 CRDT- 2015/12/26 06:00 PHST- 2015/12/26 06:00 [entrez] PHST- 2015/12/26 06:00 [pubmed] PHST- 2016/04/02 06:00 [medline] PST - ppublish SO - Zhonghua Kou Qiang Yi Xue Za Zhi. 2015 Aug;50(8):469-73.