Gowri Sree, Jayasheelan Nishi, Kutty Shakkira Moosa, Kumar Pradeep, Shetty Divya, Banu Kausar
Department of Conservative Dentistry and Endodontics, Yenepoya Dental College, Yenepoya University, Mangalore, Karnataka, India.
Department of Conservative Dentistry and Endodontics, A. J Institute of Dental Sciences, Mangalore, Karnataka, India.
J Pharm Bioallied Sci. 2022 Jul;14(Suppl 1):S563-S567. doi: 10.4103/jpbs.jpbs_687_21. Epub 2022 Jul 13.
The purpose of this study was to assess the sealing ability of Biodentine (BD) and mineral trioxide aggregate (MTA) as retrograde filling materials after irrigation with 17% ethylenediaminetetraacetic acid (EDTA) and QMix irrigating solutions.
Decoronation of 48 permanent maxillary central incisors was done. Root canal instrumentation was carried out in the samples. The apical root was resected for about 3 mm and retrocavities were prepared. Teeth were allocated into two groups ( = 24). MTA was used in Group 1. BD was used in Group 2. Depending on irrigation, the groups were subdivided A, B, and C subgroups. Group A - 0.9% saline; Group B - 17% EDTA; and Group C - QMix were used. The resected root end was irrigated with 5 ml of all irrigating solutions for 1 min. After final irrigation, cavities were filled with retrofilling materials in each group. Nail enamel was applied to the surfaces of the roots apart from the resected end. Roots were placed in India ink for 72 h. Teeth were sectioned longitudinally and microleakage was determined with a stereomicroscope.
Analysis was done using the one-way analysis of variance, Independent -test, and test.
Statistically significant difference in the degree of microleakage was observed between irrigating solutions and the retrofilling materials.
BD exhibits a better sealing ability compared to MTA as a retro filling material following QMix irrigation.
本研究旨在评估用17%乙二胺四乙酸(EDTA)和QMix冲洗液冲洗后,生物陶瓷(BD)和三氧化矿物凝聚体(MTA)作为根尖倒充填材料的封闭能力。
对48颗上颌恒中切牙进行去冠处理。对样本进行根管预备。切除根尖约3mm并制备倒凹洞形。将牙齿分为两组(每组24颗)。第1组使用MTA。第2组使用BD。根据冲洗液不同,每组再分为A、B和C三个亚组。A组使用0.9%生理盐水;B组使用17% EDTA;C组使用QMix。用5ml所有冲洗液对切除的牙根末端冲洗1分钟。末次冲洗后,每组用根尖倒充填材料充填窝洞。除切除端外,在牙根表面涂抹指甲油。将牙根置于印度墨水中72小时。纵向剖切牙齿,用体视显微镜测定微渗漏情况。
采用单因素方差分析、独立样本t检验和卡方检验进行分析。
观察到冲洗液和根尖倒充填材料之间微渗漏程度存在统计学显著差异。
作为QMix冲洗后的根尖倒充填材料,BD相比MTA表现出更好的封闭能力。