Hiremath Hemalatha, Harinkhere Chhaya, Misar Pooja, Sabley Kshitij, Bajpai Trupti
Department of Conservative Dentistry and Endodontics, Swargiya Dadasaheb Khalmegh Smruti Dental College and Hospital, Nagpur, Maharashtra, India.
Department of Conservative Dentistry and Endodontics, Sri Aurobindo College of Dentistry, Indore, Madhya Pradesh, India.
Dent Res J (Isfahan). 2021 Aug 18;18:64. eCollection 2021.
The purpose of this study was to evaluate the effect of five different surface treatments on the mechanical property and antimicrobial effect of three desiccated glass ionomer cements.
In this experimental study, 300 rectangular blocks of three different restorative materials were fabricated using an aluminum mold, Group I ( = 100) Micron bioactive, Group II ( = 100) GC Fuji IX GP Extra, and Group III ( = 100) bioglass R. These blocks were stored in 100% humidity for 24 h and then placed in air to desiccate for another 24 h. These groups were further divided into two major groups ( = 50) for both mechanical (Flexural) and antimicrobial testing. The blocks of mechanical and antimicrobial groups were further divided into five subgroups ( = 10) based on the medias used for surface treatment (senquelNaF, MI varnish, chlorhex plus, kedodent mouthwash, and 100% humidity [control]). Flexural strength (FS) was measured using the universal testing machine. Fracture strength of groups was compared using the one-way analysis of variance and Tukey's test with ≤ 0.05 considered statistically significant. Antimicrobial effect was carried out by covering the specimens in a suspension of followed by incubation for 24 h. The blocks were later washed, vortex mixed, serially diluted, and plated. Ccolony-forming unit/ml was calculated after 3 days of incubation. Data were then analyzed using the Kruskal-Wallis and Mann-Whitney nonparametric test, with ≤ 0.05 considered statistically significant.
Micron bioactive with the surface treatment of MI varnish significantly exhibited highest FS. Surface treatment of desiccated restorative materials with chlorhex plus exhibited no growth of . GC Fuji IX GP Extra with surface treatment of MI varnish exhibited highest reduction in growth compared to other experimental group.
Surface treatment of restorative material with MI varnish improved their mechanical and antimicrobial property while among three restorative materials Micron bioactive showed better mechanical property, whereas GC Fuji IX GP Extra exhibited better antimicrobial property.
本研究的目的是评估五种不同表面处理对三种干燥玻璃离子水门汀的机械性能和抗菌效果的影响。
在本实验研究中，使用铝模具制作了300个由三种不同修复材料制成的矩形块，第一组（n = 100）为微米生物活性材料，第二组（n = 100）为GC Fuji IX GP Extra，第三组（n = 100）为生物玻璃R。这些块在100%湿度下储存24小时，然后置于空气中再干燥24小时。这些组进一步分为两个主要组（n = 50）进行机械性能（弯曲）和抗菌测试。机械性能组和抗菌组的块根据用于表面处理的介质（森奎尔NaF、MI清漆、洗必泰加、凯多登漱口水和100%湿度[对照]）进一步分为五个亚组（n = 10）。使用万能试验机测量弯曲强度（FS）。使用单因素方差分析和Tukey检验比较各组的断裂强度，P≤0.05被认为具有统计学意义。通过将标本覆盖在金黄色葡萄球菌的悬浮液中，然后孵育24小时来进行抗菌效果测试。随后将块冲洗、涡旋混合、连续稀释并接种平板。孵育3天后计算菌落形成单位/毫升。然后使用Kruskal-Wallis和Mann-Whitney非参数检验分析数据，P≤0.05被认为具有统计学意义。
经MI清漆表面处理的微米生物活性材料显著表现出最高的FS。用洗必泰加对干燥的修复材料进行表面处理后，金黄色葡萄球菌没有生长。与其他实验组相比，经MI清漆表面处理的GC Fuji IX GP Extra在金黄色葡萄球菌生长方面表现出最大程度的降低。
用MI清漆对修复材料进行表面处理可改善其机械性能和抗菌性能，而在三种修复材料中，微米生物活性材料显示出更好的机械性能，而GC Fuji IX GP Extra表现出更好的抗菌性能。
