Maharti Ike Dwi, Larasputri Indira, Herdianto Nendar, Margono Anggraini, Tasomara Riesma, Rosseti Romilda
Department of Conservative Dentistry, University of Indonesia, Jakarta, Indonesia.
Research Center for Advanced Material - National Research and Innovation Agency (BRIN), South Tangerang, Banten, Indonesia.
J Conserv Dent Endod. 2025 Sep;28(9):881-885. doi: 10.4103/JCDE.JCDE_406_25. Epub 2025 Sep 5.
The adhesion of sealers to dentin is a vital aspect of endodontic success. Epoxy resin-based sealers such as AH Plus are considered the gold standard for their strong mechanical adhesion, but they lack bioactivity. Calcium silicate-based sealers such as AH Plus Bioceramic and Ceraseal offer bioactive potential. This study compares the push-out bond strength and failure modes of three root canal sealers: AH Plus Bioceramic, Ceraseal, and AH Plus.
Thirty mandibular premolars were prepared and divided into three groups (n = 10): Group I (AH Plus Bioceramic), Group II (Ceraseal), and Group III (AH Plus). Push-out bond strength was measured in MPa at apical and medial root segments using a universal testing machine. Failure modes were evaluated using a digital microscope at ×30 and ×100 magnification.
AH Plus exhibited the highest mean bond strength (14.65 ± 2.42 MPa), followed by Ceraseal. AH Plus Bioceramic showed the lowest bond strength (2.31 ± 0.21 MPa). Failure modes in Group I were predominantly mixed, whereas Groups II and III had balanced cohesive and mixed failures.
While all sealers adhered well to dentin, AH Plus Bioceramic demonstrated significantly lower bond strength compared to AH Plus and Ceraseal.
封闭剂与牙本质的粘结是根管治疗成功的关键因素。基于环氧树脂的封闭剂如AH Plus因其强大的机械粘结力被视为金标准，但它们缺乏生物活性。基于硅酸钙的封闭剂如AH Plus Bioceramic和Ceraseal具有生物活性潜力。本研究比较了三种根管封闭剂的推出粘结强度和失败模式：AH Plus Bioceramic、Ceraseal和AH Plus。
制备30颗下颌前磨牙并分为三组（n = 10）：第一组（AH Plus Bioceramic）、第二组（Ceraseal）和第三组（AH Plus）。使用万能试验机以MPa为单位测量根尖和牙根中段的推出粘结强度。使用数字显微镜在30倍和100倍放大倍数下评估失败模式。
AH Plus表现出最高的平均粘结强度（14.65±2.42 MPa），其次是Ceraseal。AH Plus Bioceramic的粘结强度最低（2.31±0.21 MPa）。第一组的失败模式主要是混合性的，而第二组和第三组的粘结性和混合性失败较为均衡。
虽然所有封闭剂与牙本质的粘结都良好，但与AH Plus和Ceraseal相比，AH Plus Bioceramic的粘结强度显著较低。
