Azhar Saleem, Agarwal Abhinay, Dhingra Sahil, Akhtar Mohammad Salman, Yadav Sachin, Sandesh Shubham, Singh Vikas
Conservative Dentistry and Endodontics, Teerthanker Mahaveer Dental College and Research Centre, Moradabad, IND.
Conservative Dentistry and Endodontics, Kalka Dental College and Hospital, Meerut, IND.
Cureus. 2024 Sep 23;16(9):e70035. doi: 10.7759/cureus.70035. eCollection 2024 Sep.
Background Radiopacity is a critical property for root canal sealers as it allows for the assessment of the material's placement and quality within the root canal system on radiographic images. The study aimed to evaluate the radiopacity of calcium silicate-based and resin-based materials using direct digital radiography, employing an aluminium step wedge according to American National Standards Institute/International Organization for Standardization (ANSI/ISO) standard protocols for testing the radiopacity of root canal sealers. This study seeks to determine the effectiveness of these materials in meeting the required standards for clinical use. Methodology The materials tested were AH Plus, Apexit Plus, Biodentine and MTA Fillapex in circular disc form and radiographed alongside the aluminium step wedge using direct digital radiography to determine the radiopacity using grey-pixel values. All the materials, viz., AH Plus, Apexit Plus, Biodentine and MTA Fillapex were found satisfactorily radiopaque and met the minimum radiopacity standard, that is, minimum 3mm of aluminium recommended by ANSI/American Dental Association (ADA) Specification No. 57. Results AH Plus exhibited the highest radiopacity with values of 222.54 mm Al Eq (isodensity) and 220.88 mm Al Eq (densitometric), significantly surpassing Apexit Plus, Fillapex and Biodentine (p < 0.001). Apexit Plus and Fillapex showed no significant difference between them (p = 0.238), but both were significantly higher than Biodentine (p < 0.001). Biodentine had the lowest radiopacity among all the sealers tested. Conclusion All the tested materials met the ANSI/ADA minimum radiopacity standard, demonstrating their suitability for clinical use. The materials varied in their levels of radiopacity, demonstrating that they are adequately visible on radiographic images for effective assessment in root canal treatments.
背景 射线不透性是根管封闭剂的一项关键特性，因为它有助于在X线影像上评估材料在根管系统内的填充位置和质量。本研究旨在使用直接数字X线摄影技术，依据美国国家标准学会/国际标准化组织（ANSI/ISO）的根管封闭剂射线不透性测试标准协议，采用铝阶梯楔形块，评估硅酸钙基材料和树脂基材料的射线不透性。本研究旨在确定这些材料在满足临床使用所需标准方面的有效性。方法 所测试的材料为圆盘状的AH Plus、Apexit Plus、Biodentine和MTA Fillapex，使用直接数字X线摄影技术与铝阶梯楔形块一起进行X线摄影，通过灰度像素值确定射线不透性。所有材料，即AH Plus、Apexit Plus、Biodentine和MTA Fillapex，均具有令人满意的射线不透性，符合最低射线不透性标准，即ANSI/美国牙科协会（ADA）第57号规范推荐的至少3毫米铝当量。结果 AH Plus表现出最高的射线不透性，等密度值为222.54毫米铝当量，密度测量值为220.88毫米铝当量，显著超过Apexit Plus、Fillapex和Biodentine（p < 0.001）。Apexit Plus和Fillapex之间无显著差异（p = 0.238），但两者均显著高于Biodentine（p < 0.001）。Biodentine在所测试的所有封闭剂中射线不透性最低。结论 所有测试材料均符合ANSI/ADA最低射线不透性标准，表明它们适用于临床使用。这些材料的射线不透性水平各不相同，表明它们在X线影像上足以清晰显示，以便在根管治疗中进行有效评估。
