Mirhashemi Amirhossein, Jazi Leila
Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
Dent Res J (Isfahan). 2021 Dec 10;18:110. eCollection 2021.
Antimicrobial nanoparticles (NPs) have various applications in different fields of dentistry. The purpose of incorporating NPs into orthodontic adhesives is to inhibit the cariogenic bacteria and reduce decalcifications around bonded orthodontic brackets. However, they may affect the physical and mechanical properties of adhesive such as shear bond strength (SBS). This review was done to answer the question whether the incorporation of antimicrobial NPs into orthodontic adhesives changes the SBS.
An electronic search was performed with keywords such as adhesives AND nanoparticles AND orthodontics AND shear strength. After screening and applying eligibility criteria, 18 relevant studies were included.
The pooled data suggest that except for 10 wt% of various NPs incorporation, there is no significant difference in SBS between control conventional adhesives and experimental modified ones with tested concentrations.
The SBS of orthodontic adhesives containing up to 5% NPs is in clinical acceptable range. However, generalizing the results to situation may be problematic and further studies are required.
抗菌纳米颗粒（NPs）在牙科的不同领域有多种应用。将纳米颗粒加入正畸粘合剂的目的是抑制致龋菌并减少正畸托槽周围的脱矿。然而，它们可能会影响粘合剂的物理和机械性能，如剪切粘结强度（SBS）。本综述旨在回答将抗菌纳米颗粒加入正畸粘合剂是否会改变剪切粘结强度这一问题。
使用“粘合剂”“纳米颗粒”“正畸学”“剪切强度”等关键词进行电子检索。在筛选并应用纳入标准后，纳入了18项相关研究。
汇总数据表明，除了加入10 wt%的各种纳米颗粒外，对照常规粘合剂与经测试浓度的实验性改良粘合剂之间的剪切粘结强度没有显著差异。
含纳米颗粒高达5%的正畸粘合剂的剪切粘结强度在临床可接受范围内。然而，将结果推广到所有情况可能存在问题，需要进一步研究。
