Evaluation of Apical Overfilling and Sealing with 4 Different Obturation Techniques in Oval-root Canals In Vitro

doi:10.13701/j.cnki.kqyxyj.2017.10.004

Abstract

Abstract: Objective: To evaluate the apical overfilling and microleakage in oval-root canals, which were obturated with GuttaFlow, continuous wave of vertical condensation, cold lateral condensation, and iRoot SP. Methods: Eighty-eight exacted mandibular premolars with single oval-root canals were prepared with MTwo to the 35#04. Eighty teeth were randomly divided into four groups. Each group had 20 teeth, which was obturated with GuttaFlow, continuous wave of vertical condensation, cold lateral condensation, and iRoot SP respectively. Root canal overfilling in each tooth was recorded. Twelve teeth with good filling were chosen and detected the apical microleakage with transparent tooth staining. Results: The overfilling of the root canals obturated with GuttaFlow and iRoot SP group had higher overfilling rate. Microleakage results showed: GuttaFlow group < continuous warm gutta-percha group <cold lateral condensation group <iRoot SP single pointed group. The microleakage between GuttaFlow group and cold lateral condensation group had significant difference, as well as GuttaFlow group and iRoot SP single point group, warm gutta percha group and cold side group, warm gutta percha group and iRoot SP single point group. Conclusion: GuttaFlow group and continuous warm gutta-percha group have better apical sealing ability in oval-root canals, but GuttaFlow has higher overfilling rate.

Key words: Apical sealing ability , Overfilling, Obturation techniques, Oval-root canals

CLC Number:

R781.3

LI Jing-jing, CHEN Su-lei, LI Jun-liang, QIAN Ya-jie, GAO Ya-fan, YANG Wei-dong. Evaluation of Apical Overfilling and Sealing with 4 Different Obturation Techniques in Oval-root Canals In Vitro[J]. Journal of Oral Science Research, 2017, 33(10): 1036-1039.

References

[1] Ingle JI, Bakland LK. Endodontics[M]. 5th ed. Hamilton, Ontario, Canada: BC Decker, 2002∶751-752
[2] Ricucci D, Rocas IN, Alves FR, et al. Apically extruded sealers: fate and influence on treatment outcome[J]. J Endod, 2016,42(2)∶243-249
[3] 樊明文,周学东. 牙体牙髓病学[M].第4版. 北京:人民卫生出版社,2008∶283
[4] Wu MK,Ròris A, Barkis D, et al. Prevalence and extent of long oval canals in the apical third[J] . Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2000, 89 (6)∶739-743
[5] 杨勤,童方丽,杨明,等.不同根管充填方法对椭圆形根管根尖封闭效果的影响[J].口腔疾病防治,2016,24(7)∶407-410
[6] 李俊亮,葛久禹,危薇,等.5种根管充填糊剂的根管封闭能力的比较[J].口腔医学研究,2011,27(8)∶716-718
[7] Zielinski TM,Banmgartner JC,Marshall JG. An evaluation of gutta flow and gutta-percha in the filling of lateral grooves and depressions[J] . J Endod,2008,34(3)∶295-298
[8] Ulusoy OI, Nayir Y, Celik K, et al. Apical microleakage of different root canal sealers after use of maleic acid and EDTA as final irrigants[J]. Braz Oral Res, 2014, 28(1)∶1-6
[9] 张伟. iRoot SP生物相容性及根尖封闭能力的研究[D].武汉:武汉大学,2011
[10] Wu D, Tang Z, Zhang G, et al. The sealing ability of a new silicone-based root canal filling material (GuttaFlow): an in vitro study using the percentage of gutta-percha-filled area[J].Dent Mater J, 2011, 30(5)∶569-575
[11] Kontakiotis EG, Tzanetakis GN, Loizides AL. A l2-month longitudinal in vitro leakage study on a new silicon-based root canal filling material (Gutta-Flow) [J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 2007,103(6)∶854-859
[12] Monterde M, Pallares A, Cabanillas C, et al. A comparative in vitro study of apical microleakage with five obturation techniques: lateral condensation, soft-core, obtura II, guttaflow and resilon[J]. Acta Stomatol Croat,2014,48(2)∶123-131
[13] Varun K, Harpreet S, Rajinder B, et al. Qualitative and quantitative comparative evaluation of sealing ability of guttaflow, thermoplasticized gutta percha and lateral compaction for root canal obturation: a cohort, controlled, ex-vivo study[J]. Oral Health Dent Manag,2013,12(3)∶155-161
[14] Patil P, Rathore VP, Hotkar CA , et al. Comparison of apical sealing ability between GuttaFlow and AH plus: An in vitro study [J]. J Int Soc Prev Community Dent, 2016, 6(4)∶377-382
[15] 张明,郭闯,钟双.iRoot SP 糊剂根尖封闭效果的实验研究[J].福建医科大学学报,2016,50(2)∶126-128
[16] Zhang W, Li Z, Peng B. Assesment of a new root canal sealer’s apical sealing ability[J]. Oral Surg Oral Med Ora Pathol Oral Radiol Endod,2009,107(6)∶79-82