UNASSIGNED: Forty-eight human single-canaled premolars were prepared and randomly divided into three groups: Group (A) received no intracanal medicament; Group (B) calcium hydroxide (CH); and Group (C) Bio-C Temp. After medicament removal, the roots were sectioned transversely. The slices in each group were separated into two subgroups (n = 16): in Subgroup (1), mineral trioxide aggregate (MTA) was placed, and in Subgroup (2) Bio-C Repair. Push-out bond strength was determined using a universal testing machine, applying a constant compressive force on the cement until bond failure. The failure mode was also evaluated. Data were analyzed using the Chi-square test and two-way ANOVA followed by Tukey\'s post hoc tests. The level of significance was set at 5%.
UNASSIGNED: The pushout bond strength of Bio-C Repair was significantly higher than that of MTA irrespective of intracanal medication (p = 0.005). The placement of Bio-C Temp was associated with significantly lower bond strength (p = 0.002, p = 0.001).
UNASSIGNED: Bio-C Repair showed better bond strength compared to MTA, irrespective of intracanal medication. Bio-C Temp intracanal medicament, however, decreased the bond strength of both these cements.
■制备了48个人类单管前磨牙,并随机分为三组:组(A)不接受肛门内药物;组(B)氢氧化钙(CH);和组(C)Bio-CTemp。取出药物后,根部被横切。每组切片分为两个亚组(n=16):亚组(1),放置矿物三氧化物骨料(MTA),亚组(2)Bio-C修复。使用万能试验机确定推出粘结强度,在水泥上施加恒定的压缩力,直到粘结破坏。还评估了故障模式。数据采用卡方检验和双向方差分析,然后进行Tukey的事后检验。显著性水平设定为5%。
■无论肛门内用药,Bio-C修复的推出粘结强度均显着高于MTA(p=0.005)。Bio-CTemp的放置与显着降低的粘结强度相关(p=0.002,p=0.001)。
■与MTA相比,Bio-C修复显示出更好的粘结强度,不管肛门内药物。Bio-CTemp肛门内药物,然而,降低了这两种水泥的粘结强度。