Efficacy of ProTaper and Mtwo Retreatment Files in Removal of Gutta-percha and GuttaFlow from Root Canals

Overview

Journal Iran Endod J

Date 2016 Jul 30

PMID 27471528

Citations 15

Authors

Sedigheh Khedmat

Abbas Azari

Ahmad Reza Shamshiri

Mehdi Fadae

Hoorieh Bashizadeh Fakhar

Affiliations

Soon will be listed here.

Abstract

Introduction: The aim of this in vitro study was to compare the efficacy of ProTaper retreatment (ProTaper R) and Mtwo retreatment (Mtwo R) files in removing gutta-percha and GuttaFlow from endodontically treated straight root canals.

Methods And Materials: The root canals of 60 human mandibular single-rooted premolars were prepared and randomly divided into two groups (n=30). In groups A and B the root canals were obturated using lateral condensation of gutta-percha plus AH 26 and GuttaFlow, respectively. The canal orifices were temporarily sealed and the roots were incubated for 3 months at 37(º)C and 100% humidity. Primary cone-beam computed tomography (CBCT) images were taken after incubation period. The specimens in each group were randomly divided into two subgroups (n=15). ProTaper R files (D1, D2, and D3) were used in groups A1 and B1 while Mtwo R files (25/0.05 and 15/0.05) were used in groups A2 and B2. The time required to extirpate the root filling was also recorded. After retreatment, another CBCT scan was taken at the same position. The volume of remaining filling materials inside the canals was calculated before and after retreatment. The data was analyzed using the two-way ANOVA and independent t-test.

Results: The remaining filling materials in the canals treated with ProTaper were less than Mtwo. The remaining volume of GuttaFlow was less than gutta-percha regardless of the system applied. Mtwo R files removed root fillings faster than ProTaper R.

Conclusion: ProTaper R removed filling material more efficiently compared to Mtwo R which required less time to remove root filling material.

Citing Articles

Micro-Computed Tomography Analysis of Resin and Calcium Silicate Based Sealers Removal in Mandibular Molars Curved Canals.

Buyuksungur A, Oncu A, Koohnavard M, Celikten B, Odabasi Tezer E, Huang Y Acta Stomatol Croat. 2024; 58(2):134-144.

PMID: 39036324 PMC: 11256872. DOI: 10.15644/asc58/2/3.

Innovative exploration: A comparative study of novel approaches of root canal filling material removal efficiency.

Gupta A, Showkat R, Singh T J Conserv Dent Endod. 2024; 26(6):713-718.

PMID: 38292747 PMC: 10823978. DOI: 10.4103/JCDE.JCDE_162_23.

Micro-CT Assessment of Filling Removal Effectiveness in the Apical Third of Curved Canals with Different Types of Anatomy.

Campos Fruchi L, Alcalde M, Amoroso-Silva P, Vivan R, Bramante C, Duarte M Iran Endod J. 2024; 19(1):22-27.

PMID: 38223839 PMC: 10787183. DOI: 10.22037/iej.v19i1.27511.

Comparative Analysis of Continuous versus Reciprocating Instruments in Retreatment of Flat-oval Root Canals.

Matta M, de Araujo R, Dantas E, Cunha DAssuncao F, de Sousa F Iran Endod J. 2023; 16(4):217-224.

PMID: 36704778 PMC: 9735307. DOI: 10.22037/iej.v16i4.30975.

Removal of Obturation Material from Root Canals Using a Combination of Reciprocal Instrumentation and Different Final Irrigation Techniques.

Conceicao Limongi P, Amaral A, Pelegrine R, Bueno C, Kato A, Martin A Iran Endod J. 2023; 15(3):147-154.

PMID: 36703806 PMC: 9709849. DOI: 10.22037/iej.v15i3.23682.

References

Dadresanfar B, Iranmanesh M, Mohebbi P, Mehrvarzfar P, Vatanpour M . Efficacy of Two Rotary NiTi Instruments in Removal of Resilon/Epiphany Obturants. Iran Endod J. 2012; 7(4):183-8. PMC: 3487521. View

Akhavan H, Azdadi Y, Azimi S, Dadresanfar B, Ahmadi A . Comparing the Efficacy of Mtwo and D-RaCe Retreatment Systems in Removing Residual Gutta-Percha and Sealer in the Root Canal. Iran Endod J. 2012; 7(3):122-6. PMC: 3467143. View

Tasdemir T, Er K, Yildirim T, Celik D . Efficacy of three rotary NiTi instruments in removing gutta-percha from root canals. Int Endod J. 2007; 41(3):191-6. DOI: 10.1111/j.1365-2591.2007.01335.x. View

Somma F, Cammarota G, Plotino G, Grande N, Pameijer C . The effectiveness of manual and mechanical instrumentation for the retreatment of three different root canal filling materials. J Endod. 2008; 34(4):466-9. DOI: 10.1016/j.joen.2008.02.008. View

Yadav P, Bharath M, Sahadev C, Ramachandra P, Rao Y, Ali A . An in vitro CT Comparison of Gutta-Percha Removal with Two Rotary Systems and Hedstrom Files. Iran Endod J. 2013; 8(2):59-64. PMC: 3662038. View

Bergmans L, van Cleynenbreugel J, Wevers M, Lambrechts P . A methodology for quantitative evaluation of root canal instrumentation using microcomputed tomography. Int Endod J. 2001; 34(5):390-8. DOI: 10.1046/j.1365-2591.2001.00413.x. View

DallAgnol C, Hartmann M, Barletta F . Computed tomography assessment of the efficiency of different techniques for removal of root canal filling material. Braz Dent J. 2009; 19(4):306-12. DOI: 10.1590/s0103-64402008000400004. View

Gergi R, Sabbagh C . Effectiveness of two nickel-titanium rotary instruments and a hand file for removing gutta-percha in severely curved root canals during retreatment: an ex vivo study. Int Endod J. 2007; 40(7):532-7. DOI: 10.1111/j.1365-2591.2007.01254.x. View

Schirrmeister J, Wrbas K, Schneider F, Altenburger M, Hellwig E . Effectiveness of a hand file and three nickel-titanium rotary instruments for removing gutta-percha in curved root canals during retreatment. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006; 101(4):542-7. DOI: 10.1016/j.tripleo.2005.03.003. View

10.

Marfisi K, Mercade M, Plotino G, Duran-Sindreu F, Bueno R, Roig M . Efficacy of three different rotary files to remove gutta-percha and Resilon from root canals. Int Endod J. 2010; 43(11):1022-8. DOI: 10.1111/j.1365-2591.2010.01758.x. View

11.

Kosti E, Lambrianidis T, Economides N, Neofitou C . Ex vivo study of the efficacy of H-files and rotary Ni-Ti instruments to remove gutta-percha and four types of sealer. Int Endod J. 2006; 39(1):48-54. DOI: 10.1111/j.1365-2591.2005.01046.x. View

12.

Tasdemir T, Yildirim T, Celik D . Comparative study of removal of current endodontic fillings. J Endod. 2008; 34(3):326-9. DOI: 10.1016/j.joen.2007.12.022. View

13.

Hammad M, Qualtrough A, Silikas N . Three-dimensional evaluation of effectiveness of hand and rotary instrumentation for retreatment of canals filled with different materials. J Endod. 2008; 34(11):1370-1373. DOI: 10.1016/j.joen.2008.07.024. View

14.

Friedman S, Stabholz A, Tamse A . Endodontic retreatment--case selection and technique. 3. Retreatment techniques. J Endod. 1990; 16(11):543-9. DOI: 10.1016/s0099-2399(07)80219-6. View

15.

Imura N, Kato A, Hata G, Uemura M, Toda T, Weine F . A comparison of the relative efficacies of four hand and rotary instrumentation techniques during endodontic retreatment. Int Endod J. 2001; 33(4):361-6. DOI: 10.1046/j.1365-2591.2000.00320.x. View

16.

Schirrmeister J, Wrbas K, Meyer K, Altenburger M, Hellwig E . Efficacy of different rotary instruments for gutta-percha removal in root canal retreatment. J Endod. 2006; 32(5):469-72. DOI: 10.1016/j.joen.2005.10.052. View

17.

Barletta F, Rahde N, Limongi O, Moura A, Zanesco C, Mazocatto G . In vitro comparative analysis of 2 mechanical techniques for removing gutta-percha during retreatment. J Can Dent Assoc. 2007; 73(1):65. View

18.

Schirrmeister J, Hermanns P, Meyer K, Goetz F, Hellwig E . Detectability of residual Epiphany and gutta-percha after root canal retreatment using a dental operating microscope and radiographs--an ex vivo study. Int Endod J. 2006; 39(7):558-65. DOI: 10.1111/j.1365-2591.2006.01126.x. View

19.

Gu L, Ling J, Wei X, Huang X . Efficacy of ProTaper Universal rotary retreatment system for gutta-percha removal from root canals. Int Endod J. 2007; 41(4):288-95. DOI: 10.1111/j.1365-2591.2007.01350.x. View

20.

Viducic D, Jukic S, Karlovic Z, Bozic Z, Miletic I, Anic I . Removal of gutta-percha from root canals using an Nd:YAG laser. Int Endod J. 2003; 36(10):670-3. DOI: 10.1046/j.1365-2591.2003.00710.x. View