Emmanuel Samson, Shantaram Kulkarni, Sushil Kumar C, Manoj Likhitkar
Department of Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College Hingoli, Maharashtra, India;
J Int Oral Health. 2013 Apr;5(2):35-43.
Success of non-surgical root canal treatment is predicted by meticulous cleaning and shaping of the root canal system, three-dimensional obturation and a well-fitting "leakage-free" coronal restoration. The techniques of obturation that are available have their own relative position in the historical development of filling techniques. Over the years, pitfalls with one technique have often led to the development of newer methods of obturation, along with the recognition that no one method of obturation may satisfy all clinical cases.
A total of 120 extracted human permanent anterior maxillary and mandibular single rooted teeth were selected for the present study and divided into 3 groups based on the method of obturation technique. Following the preparation the patency at the apical foramen was confirmed by passing a file #15. After obturation of all three groups, teeth were immersed in 1% of aqueous methylene blue dye for a period of two weeks and then samples were subjected to spectrophotometric analysis.
The present study was conducted to evaluate in vitro the spectrophotometric analysis to quantitatively analyze relative amount of dye penetration using lateral condensation (Group I), Obtura II (Group II ), Thermafil obturating technique (Group III) with ZOE sealer used in all groups. Teeth obturated with lateral condensation (Group I) shows mean value of 0.0243 and standard deviation of 0.0056. The Group II thermoplasticized injectable moulded Guttapercha (Obtura II) showed 0.0239 mean and standard deviation value of 0.0045 and Group III Thermafil obturation technique shows 0.0189 as mean value and 0.0035 standard deviation values.
Following conclusion was drawn from the present study. Group III i.e., Thermafil obturating technique shows minimum mean apical dye penetration compared to Group II (ObturaII) and Group I (lateral condensation).Lateral condensation shows maximum mean apical dye penetration in all three groups.There is no significant difference between the apical dye penetration of lateral condensation and Obtura II.
Obturation, lateral condensation, Obtura II, Thermafil, Spectrophotometer, dye penetration. How to cite this article: Samson E, Kulkarni S, Sushil K C, Likhitkar M. An In-Vitro Evaluation and Comparison of Apical Sealing Ability of Three Different Obturation Technique - Lateral Condensation, Obtura II, and Thermafil. J Int Oral Health 2013; 5(2):35-43.
非手术根管治疗的成功取决于对根管系统进行细致的清理和塑形、三维充填以及良好适配的“无渗漏”冠部修复。现有的充填技术在充填技术的历史发展中都有其相对地位。多年来，一种技术的缺陷常常促使更新的充填方法得以发展，同时人们也认识到没有一种充填方法能适用于所有临床病例。
本研究共选取120颗拔除的人类上颌和下颌前牙单根恒牙，根据充填技术方法分为3组。预备后，通过15号锉确认根尖孔通畅。三组均完成充填后，将牙齿浸泡在1%的亚甲蓝水溶液中两周，然后对样本进行分光光度分析。
本研究旨在通过体外分光光度分析，定量分析使用侧方加压法（第一组）、Obtura II法（第二组）、Thermafil充填技术（第三组）并在所有组中使用氧化锌丁香油水门汀封闭剂时染料渗透的相对量。用侧方加压法充填的牙齿（第一组）平均值为0.0243，标准差为0.0056。第二组热塑注射成型牙胶（Obtura II）平均值为0.0239，标准差为0.0045，第三组Thermafil充填技术平均值为0.0189，标准差为0.0035。
本研究得出以下结论。第三组即Thermafil充填技术与第二组（Obtura II）和第一组（侧方加压法）相比，根尖染料渗透平均值最低。侧方加压法在所有三组中根尖染料渗透平均值最高。侧方加压法和Obtura II的根尖染料渗透无显著差异。
充填；侧方加压法；Obtura II；Thermafil；分光光度计；染料渗透。如何引用本文：Samson E, Kulkarni S, Sushil KC, Likhitkar M. 三种不同充填技术——侧方加压法、Obtura II和Thermafil根尖封闭能力的体外评价与比较。《国际口腔健康杂志》2013；5(2):35 - 43。
