Akcay Merve, Arslan Hakan, Topcuoglu Hüseyin Sinan, Tuncay Oznur
Department of Pediatric Dentistry, Faculty of Dentistry, İzmir Katip Çelebi University, İzmir, Turkey.
Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey.
J Endod. 2014 Oct;40(10):1663-7. doi: 10.1016/j.joen.2014.05.006. Epub 2014 Jun 25.
The aim of this study was to evaluate the effects of calcium hydroxide (CH) and triple (TAP) and double (DAP) antibiotic pastes on the bond strength of an epoxy resin-based sealer (AH Plus Jet; Dentsply DeTrey, Konstanz, Germany) to the root canal dentin.
Sixty-four single-rooted human mandibular premolars were decoronated and prepared using the rotary system to size 40. The specimens were randomly divided into a control group (without intracanal dressing) and 3 experimental groups that received an intracanal dressing with either CH, DAP, or TAP (n = 16). The intracanal dressing was removed by rinsing with 10 mL 17% EDTA followed by 10 mL 2.5% sodium hypochlorite. The root canals were then obturated with gutta-percha and AH Plus Jet sealer. A push-out test was used to measure the bond strength between the root canal dentin and the sealer. The data were analyzed using 2-way analysis of variance and Tukey post hoc tests to detect the effect of the independent variables (intracanal medicaments and root canal thirds) and their interactions on the push-out bond strength of the root canal filling material to the root dentin (P = .05).
The push-out bond strength values were significantly affected by the intracanal medicaments (P < .001) but not by the root canal thirds (P > .05). In the middle and apical third, the bond strength of the TAP group was higher than those of the CH and DAP groups (P < .05).
The DAP and CH did not affect the bond strength of the epoxy resin-based sealer. Additionally, the TAP improved the bond strength of the epoxy resin-based sealer in the middle and apical thirds.
本研究旨在评估氢氧化钙（CH）、三联（TAP）和双联（DAP）抗生素糊剂对环氧树脂类封闭剂（AH Plus Jet；德国康斯坦茨登士柏德特雷公司）与根管牙本质粘结强度的影响。
选取64颗单根人下颌前磨牙，截冠后采用旋转系统预备至40号。将标本随机分为对照组（未进行根管内封药）和3个试验组，分别用CH、DAP或TAP进行根管内封药（n = 16）。通过用10 mL 17%乙二胺四乙酸（EDTA）冲洗，然后用10 mL 2.5%次氯酸钠冲洗来去除根管内封药。然后用牙胶和AH Plus Jet封闭剂对根管进行充填。采用推出试验测量根管牙本质与封闭剂之间的粘结强度。使用双向方差分析和Tukey事后检验分析数据，以检测自变量（根管内药物和根管三分部）及其相互作用对根管充填材料与牙根牙本质推出粘结强度的影响（P = 0.05）。
根管内药物对推出粘结强度值有显著影响（P < 0.001），但根管三分部对其无显著影响（P > 0.05）。在根管中部和根尖部，TAP组的粘结强度高于CH组和DAP组（P < 0.05）。
DAP和CH不影响环氧树脂类封闭剂的粘结强度。此外，TAP提高了环氧树脂类封闭剂在根管中部和根尖部的粘结强度。
