Gokturk Hakan, Bayram Emre, Bayram Huda Melike, Aslan Tugrul, Ustun Yakup
Department of Endodontics, Faculty of Dentistry, Gaziosmanpaşa University, 60100, Tokat, Turkey.
Department of Restorative Dentistry and Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
Clin Oral Investig. 2017 May;21(4):1277-1282. doi: 10.1007/s00784-016-1877-1. Epub 2016 Jun 10.
The purpose of the present study was to determine the dislodgement resistance of AH Plus, MTA Fillapex, and Total Fill BC sealer to root canal dentin walls following placement of calcium hydroxide (CH) or double antibiotic paste (DAP) medicaments.
Root canals of 90 single-rooted human mandibular premolar teeth were instrumented with Reciproc rotary instruments to a size R50. The teeth were randomly divided into two experimental groups: those receiving an intracanal medicament with either CH or DAP and a control group (n = 30). After 3 weeks, the medicaments were removed by irrigation with 5 mL of 2.5 % NaOCl, 5 mL 17 % EDTA, and 5 mL distilled water under sonic agitation. Each group was then subdivided into three subgroups (n = 10), and the canals were filled with either AH Plus, MTA Fillapex, or Total Fill BC sealer. After 1 week, a push-out test was applied to the specimens and the results were analyzed using one-way analysis of variance (ANOVA) and post hoc Tamhane's tests.
Regardless of the type of intracanal medicament used, Total Fill BC Sealer and MTA Fillapex showed the highest and lowest bond strength, respectively (P < 0.05). The use or absence of medicaments did not significantly affect the dislodgment resistance of root canal fillings (P > 0.05). Prior CH placement improved dislodgement resistance of all sealers without statistical difference (P > 0.05). Adhesive failure between core and sealer was the most frequent failure mode.
Prior application of CH or DAP did not significantly affect the adhesion of the AH Plus, MTA Fillapex, and Total Fill BC Sealers.
There is a little information about the influence of antibiotic medicaments on the bond strength of root canal sealer. These findings suggest that the use of DAP does not affect the adhesion strength of AH Plus, MTA Fillapex, and Total Fill BC Sealers.
本研究的目的是确定在放置氢氧化钙（CH）或双抗生素糊剂（DAP）药物后，AH Plus、MTA Fillapex和Total Fill BC封闭剂对根管牙本质壁的抗脱位性。
用Reciproc旋转器械将90颗单根人下颌前磨牙的根管预备至R50尺寸。将牙齿随机分为两个实验组：接受CH或DAP根管内药物治疗的组和对照组（n = 30）。3周后，在超声震荡下用5 mL 2.5%次氯酸钠、5 mL 17%乙二胺四乙酸和5 mL蒸馏水冲洗去除药物。然后将每组再细分为三个亚组（n = 10），并用AH Plus、MTA Fillapex或Total Fill BC封闭剂充填根管。1周后，对标本进行推出试验，并使用单因素方差分析（ANOVA）和事后Tamhane检验分析结果。
无论使用何种根管内药物，Total Fill BC封闭剂和MTA Fillapex分别显示出最高和最低的粘结强度（P < 0.05）。药物的使用与否对根管充填物的抗脱位性没有显著影响（P > 0.05）。预先放置CH可提高所有封闭剂的抗脱位性，但无统计学差异（P > 0.05）。核与封闭剂之间的粘结失败是最常见的失败模式。
预先应用CH或DAP对AH Plus、MTA Fillapex和Total Fill BC封闭剂的粘结没有显著影响。
关于抗生素药物对根管封闭剂粘结强度影响的信息较少。这些发现表明，使用DAP不会影响AH Plus、MTA Fillapex和Total Fill BC封闭剂的粘结强度。
