Determination of residual dentine caries after conventional mechanical and chemomechanical caries removal with Carisolv
Determination of residual dentine caries after conventional mechanical and chemomechanical caries removal with Carisolv
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使用 Carisolv 进行常规机械和化学机械龋齿去除后残余牙本质龋齿的测定
DOI：
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发表时间：
2001
影响因子：
3.4
通讯作者：
B. Gellissen
中科院分区：
文献类型：
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作者：
C. Splieth;M. Rosin;B. Gellissen
抽象。本研究的目的是评估Carisolv和圆形布尔斯钻化学机械去除牙本质龋的有效性。在24颗拔除的恒牙中，通过用牙科探测器检查牙本质的硬度来监测Carisolv或旋转圆形布尔斯的龋齿去除，并在每组中的12颗牙齿处停止，当（a）达到皮革硬质地或（B）听到尖锐的刮擦声时。包埋和切片（400 µm）后，使用甲基红染料评估剩余牙本质的龋齿活性。在样本的显微镜图像（7×）中，计算每个龋损的粉红色（龋活跃，pH<5.5）和黄色（pH>5.5）染色的平均深度。使用圆形牙钻，当达到皮革硬质地（51-58 µm）时，龋齿活跃和非活跃病变的深度显著大于当达到尖锐刮擦声时（19-25 µm，t检验，P<0.05）。对于用Carisolv治疗的牙齿，只有龋齿不活跃的牙本质的深度有显著差异。无论龋齿去除的临床标准如何，Carisolv治疗导致龋齿活跃牙本质的平均深度（71-78 µm）高于使用圆形牙钻的传统龋齿去除（19-51 µm），而龋齿非活跃牙本质的平均深度差异极小。因此，使用Carisolv去除龋齿时，留下的龋蚀牙本质比圆形布尔斯平均多50 µm。
Abstract. The aim of the study was to assess the efficacy of removing dentine caries chemomechanically with Carisolv and with round burs. In 24 extracted permanent teeth each, caries removal with Carisolv or rotating round burs was monitored by checking the hardness of the dentine with a dental explorer and stopped at 12 teeth in each group when either (a) a leather-hard texture was reached or (b) a sharp scratching sound was heard. After embedding and sectioning (400 µm), caries activity of the remaining dentine was assessed using methyl red dye. In microscope images (7×) of the samples, the mean depth of the pink (caries-active, pH<5.5) and yellow (pH>5.5) staining of each carious lesion was calculated. Using a round bur, the depth of caries-active and -inactive lesions was significantly greater when a leather-hard texture (51–58 µm) was reached than when a sharp scratching sound was reached (19–25 µm, t-test, P<0.05). For teeth treated with Carisolv, only the depth of the caries-inactive dentine differed significantly. Regardless of the clinical criterion for caries removal, Carisolv treatment resulted in higher mean depths of caries-active dentine (71–78 µm) than conventional caries removal using the round bur (19–51 µm), while the mean depths of the caries-inactive dentine differed minimally. Thus, caries removal with Carisolv leaves up to a mean of 50 µm more carious dentine than round burs.