Gokce Suna Nur, Buyuksungur Arda, Ozer Levent
Pediatric Dentistry Department, Faculty of Dentistry, Ankara University, Ankara, Türkiye.
Basic Medical Sciences Department, Faculty of Dentistry, Ankara University, Ankara, Türkiye.
Microsc Res Tech. 2025 Sep;88(9):2482-2491. doi: 10.1002/jemt.24868. Epub 2025 Apr 13.
This study evaluated the effectiveness of conventional rotary instruments (CRI), atraumatic restorative treatment (ART), and the BRIX-3000 chemomechanical caries removal gel by measuring bone mineral density (BMD) and mineral composition in vitro. The carious dentin of 50 extracted human primary molar teeth was removed by using three different methods and restored with high-viscosity glass ionomer cement FUJİ-IX. The BMD values measured from all sections of the cavity floor in the BRIX-3000, ART, and CRI groups are 1.72, 1.79, and 1.66 g/cm, respectively. SEM-EDX measurements were performed on five randomly selected teeth from the groups. In the BRIX-3000 group, the mean wt Ca% was 65.6, wt P% was 25.34, and the Ca/P ratio was 2.57. In the ART group, 65.75, 23.79, and 2.58 were found, respectively. In the CRI group, 65.73, 26.03, and 2.53 were found, respectively. While there was no difference between the wt Ca% values in all groups in the comparison of the cavity floor and adjacent sound dentin of the samples, the wt P% values were statistically significantly higher on the sound dentin surface.
本研究通过体外测量骨密度(BMD)和矿物质成分,评估了传统旋转器械(CRI)、非创伤性修复治疗(ART)以及BRIX - 3000化学机械去龋凝胶的有效性。使用三种不同方法去除50颗拔除的人类乳磨牙的龋坏牙本质,并用高粘度玻璃离子水门汀FUJİ - IX进行修复。BRIX - 3000组、ART组和CRI组龋洞底部所有切片测得的BMD值分别为1.72、1.79和1.66 g/cm。对每组随机选取的五颗牙齿进行扫描电子显微镜 - 能谱仪(SEM - EDX)测量。在BRIX - 3000组中,平均钙重量百分比(wt Ca%)为65.6,磷重量百分比(wt P%)为25.34,钙磷比为2.57。在ART组中,分别为65.75、23.79和2.58。在CRI组中,分别为65.73、26.03和2.53。在比较样本龋洞底部和相邻健康牙本质时,所有组的wt Ca%值无差异,但健康牙本质表面的wt P%值在统计学上显著更高。