Alkhudhairy Fahad, Bin-Shuwaish Mohammed S, Aljamhan Abdullah S
Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
Photobiomodul Photomed Laser Surg. 2024 May;42(5):350-355. doi: 10.1089/photob.2023.0071. Epub 2024 Apr 8.
Assessment of different remineralizing pretreatment casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), proanthocyanidin (PA), carbon dioxide laser (CO), eggshell solution (ES) on the shear bond strength (SBS) of resin composite bonded to remineralized carious-affected dentin (CAD). Eighty human molars were collected with occlusal caries that extended about halfway into the dentin. Using a water-cooled, low-speed cutting saw, a flat, mid-coronal dentin surface was exposed. CAD was differentiated from healthy dentin. Based on the remineralizing agent used on the CAD surface, the teeth were arbitrarily allocated into five groups ( = 10). Group 1: no remineralizing agent, Group 2: CPP-ACP, Group 3: 6.5% PA solution, Group 4: CO laser, and Group 5: ES solution. All samples were bonded to composite and light cured and thermocycled. SBS and failure mode analysis were performed using universal testing and stereomicroscope 40 × . Using SPSS, SBS, and failure mode data were analyzed using analysis of variance and Tukey's honesty significant difference (HSD) test Group 3 (6.5% PA solution; 15.59 ± 1.44 MPa) samples established the maximum bond integrity. Nevertheless, Group 1 (No remineralizing agent; 11.19 ± 1.21 MPa) exhibited the minimum outcome of bond strength. Intergroup comparison analysis showed that Group 1 (No remineralizing agent), Group 2 (CPP-ACP), and Group 4 (CO laser) established comparable values of bond strength ( > 0.05). Likewise, Group 3 (6.5% PA solution) and Group 5 (EA solution) also revealed equivalent bond integrity ( > 0.05). PA and ES are considered potential remineralizing agents used for caries-affected dentin surfaces in improving bond integrity to composite resin. However, further studies are advocated to extrapolate the findings of this study.
评估不同再矿化预处理剂酪蛋白磷酸肽-无定形磷酸钙（CPP-ACP）、原花青素（PA）、二氧化碳激光（CO）、蛋壳溶液（ES）对树脂复合材料与再矿化龋损牙本质（CAD）粘结的剪切粘结强度（SBS）的影响。收集80颗有咬合龋且龋损延伸至牙本质约一半深度的人类磨牙。使用水冷低速切割锯暴露平坦的中冠部牙本质表面。区分CAD与健康牙本质。根据CAD表面使用的再矿化剂，将牙齿随机分为五组（每组 = 10颗）。第1组：不使用再矿化剂，第2组：CPP-ACP，第3组：6.5% PA溶液，第4组：CO激光，第5组：ES溶液。所有样本均粘结复合树脂并光固化和进行热循环处理。使用万能试验机和40×体视显微镜进行SBS和失效模式分析。使用SPSS软件，对SBS和失效模式数据进行方差分析和Tukey诚实显著差异（HSD）检验。第3组（6.5% PA溶液；15.59±1.44 MPa）样本的粘结完整性最高。然而，第1组（不使用再矿化剂；11.19±1.21 MPa）的粘结强度结果最低。组间比较分析表明，第1组（不使用再矿化剂）、第2组（CPP-ACP）和第4组（CO激光）的粘结强度值具有可比性（P>0.05）。同样，第3组（6.5% PA溶液）和第5组（EA溶液）的粘结完整性也相当（P>0.05）。PA和ES被认为是用于龋损牙本质表面的潜在再矿化剂，可提高与复合树脂的粘结完整性。然而，建议进一步开展研究以推广本研究的结果。
