 This study investigates the use of a novel low shrinkage stress, LSS, dental composite material containing dimethylaminodotosilmothacrylate, DMADDM, as an antibacterial agent to combat recurrent carries. The objective was to develop a composite with reduced polymerization shrinkage stress and improved antibacterial properties. The results show that the addition of DMADDM to bisgma-tegma resin and LSS resin resulted in clinically acceptable degrees of conversion. Additionally, the addition of 3% and 5% DMADDM showed a six-log reduction in streptococcus mutants, S. Mutants, biofilm CFUs compared to the commercial control, P less than 0.001, indicating strong antibacterial activity. Furthermore, the new composite is promising for dental applications to prevent secondary carries and increase restoration longevity. This article was authored by Abdullah al-Hussian, Rashid al-Sahafi, Xiaohuang Wang, and others. We are article.tv, links in the description below.