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Comparative evaluation of the effectiveness and fracture rate of three pathfinding nickel-titanium rotary instruments, Mtwo, OneG, and ProGlider, in mechanically negotiating moderately curved molar canals to the full working length.
J Conserv Dent 2019 May-Jun; 22(3):260-265JC

Abstract

Aim

To evaluate the scouting ability of three pathfinding nickel-titanium rotary instruments in moderately curved molar canals.

Materials and Methods

Ninety maxillary and mandibular molars were collected and were divided randomly into three groups each having 15 maxillary and 15 mandibular molars. The teeth were mounted on a specific apparatus for simulation of dento-alveolar socket. After access cavity preparation, the canals were negotiated with 08 K-file. Glide path preparation was performed using Mtwo or ProGlider or OneG instruments. The number of teeth in which the file reached the full working length (RFWL), number of passes required, and number of fractured instruments were recorded and subjected to statistical analysis using Chi-square, Kruskal-Wallis, and Mann-Whitney tests.

Results

There was a significant difference between the groups (P < 0.05). The RFWL of ProGlider was significantly higher than that of Mtwo (P = 0.005) and OneG (P = 0.037). The percentage of fracture with ProGlider was 6.67% and both Mtwo and OneG had 26.67% frequency. The difference was not statistically significant (P > 0.05). There was significant difference in the number of insertion passes in maxillary distobuccal (P < 0.05), mandibular mesiobuccal (P < 0.01), and distal (P < 0.01) canals. ProGlider was the most effective pathfinding instrument due to its file's design and a progressive taper of 2%-8%. This achieves a greater preflaring of the coronal and middle portions of the root canal, rendering the advance of the instrument toward the apex easier.

Conclusion

ProGlider performed more efficiently and with less instrument breakage in scouting moderately curved canals of molar teeth.

Authors+Show Affiliations

Department of Conservative Dentistry and Endodontics, Hitkarini Dental College, Jabalpur, Madhya Pradesh, India.Department of Conservative Dentistry and Endodontics, Hitkarini Dental College, Jabalpur, Madhya Pradesh, India.Department of Conservative Dentistry and Endodontics, Hitkarini Dental College, Jabalpur, Madhya Pradesh, India.Department of Conservative Dentistry and Endodontics, Hitkarini Dental College, Jabalpur, Madhya Pradesh, India.Department of Conservative Dentistry and Endodontics, Hitkarini Dental College, Jabalpur, Madhya Pradesh, India.Department of Conservative Dentistry and Endodontics, Hitkarini Dental College, Jabalpur, Madhya Pradesh, India.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31367110

Citation

Jaiswal, Neelam U., et al. "Comparative Evaluation of the Effectiveness and Fracture Rate of Three Pathfinding Nickel-titanium Rotary Instruments, Mtwo, OneG, and ProGlider, in Mechanically Negotiating Moderately Curved Molar Canals to the Full Working Length." Journal of Conservative Dentistry : JCD, vol. 22, no. 3, 2019, pp. 260-265.
Jaiswal NU, Mantri SP, Paul B, et al. Comparative evaluation of the effectiveness and fracture rate of three pathfinding nickel-titanium rotary instruments, Mtwo, OneG, and ProGlider, in mechanically negotiating moderately curved molar canals to the full working length. J Conserv Dent. 2019;22(3):260-265.
Jaiswal, N. U., Mantri, S. P., Paul, B., Dube, K., Singh, V., & Bhatnagar, N. (2019). Comparative evaluation of the effectiveness and fracture rate of three pathfinding nickel-titanium rotary instruments, Mtwo, OneG, and ProGlider, in mechanically negotiating moderately curved molar canals to the full working length. Journal of Conservative Dentistry : JCD, 22(3), pp. 260-265. doi:10.4103/JCD.JCD_487_18.
Jaiswal NU, et al. Comparative Evaluation of the Effectiveness and Fracture Rate of Three Pathfinding Nickel-titanium Rotary Instruments, Mtwo, OneG, and ProGlider, in Mechanically Negotiating Moderately Curved Molar Canals to the Full Working Length. J Conserv Dent. 2019;22(3):260-265. PubMed PMID: 31367110.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparative evaluation of the effectiveness and fracture rate of three pathfinding nickel-titanium rotary instruments, Mtwo, OneG, and ProGlider, in mechanically negotiating moderately curved molar canals to the full working length. AU - Jaiswal,Neelam U, AU - Mantri,Shivkumar P, AU - Paul,Bonny, AU - Dube,Kavita, AU - Singh,Vaishnavi, AU - Bhatnagar,Nupur, PY - 2019/8/2/entrez PY - 2019/8/2/pubmed PY - 2019/8/2/medline KW - Glide path KW - instrument fracture KW - pathfinding instruments KW - scouting ability SP - 260 EP - 265 JF - Journal of conservative dentistry : JCD JO - J Conserv Dent VL - 22 IS - 3 N2 - Aim: To evaluate the scouting ability of three pathfinding nickel-titanium rotary instruments in moderately curved molar canals. Materials and Methods: Ninety maxillary and mandibular molars were collected and were divided randomly into three groups each having 15 maxillary and 15 mandibular molars. The teeth were mounted on a specific apparatus for simulation of dento-alveolar socket. After access cavity preparation, the canals were negotiated with 08 K-file. Glide path preparation was performed using Mtwo or ProGlider or OneG instruments. The number of teeth in which the file reached the full working length (RFWL), number of passes required, and number of fractured instruments were recorded and subjected to statistical analysis using Chi-square, Kruskal-Wallis, and Mann-Whitney tests. Results: There was a significant difference between the groups (P < 0.05). The RFWL of ProGlider was significantly higher than that of Mtwo (P = 0.005) and OneG (P = 0.037). The percentage of fracture with ProGlider was 6.67% and both Mtwo and OneG had 26.67% frequency. The difference was not statistically significant (P > 0.05). There was significant difference in the number of insertion passes in maxillary distobuccal (P < 0.05), mandibular mesiobuccal (P < 0.01), and distal (P < 0.01) canals. ProGlider was the most effective pathfinding instrument due to its file's design and a progressive taper of 2%-8%. This achieves a greater preflaring of the coronal and middle portions of the root canal, rendering the advance of the instrument toward the apex easier. Conclusion: ProGlider performed more efficiently and with less instrument breakage in scouting moderately curved canals of molar teeth. SN - 0972-0707 UR - https://www.unboundmedicine.com/medline/citation/31367110/Comparative_evaluation_of_the_effectiveness_and_fracture_rate_of_three_pathfinding_nickel-titanium_rotary_instruments,_Mtwo,_OneG,_and_ProGlider,_in_mechanically_negotiating_moderately_curved_molar_canals_to_the_full_working_length L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31367110/ DB - PRIME DP - Unbound Medicine ER -