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Influence of the glide path on various parameters of root canal prepared with WaveOne reciprocating file using cone beam computed tomography.

Dhingra A, Nagar N, Sapra V - Dent Res J (Isfahan) (2015 Nov-Dec)

Bottom Line: Postinstrumentation changes in canal curvature, cross-sectional area, centric ability, residual dentin thickness, and the extent of canal transportation were calculated using image analysis software and subjected to statistical analysis.Data were analyzed using Student's t-test and Mann-Whitney U-test (P < 0.05).The mean difference of root canal curvature, cross-sectional area, centric ability, and residual dentin thickness increased, whereas it reduced significantly for canal transportation in Group 2.

View Article: PubMed Central - PubMed

Affiliation: Department of Conservative Dentistry and Endodontics, D.J. College of Dental Sciences and Research, Modinagar, Uttar Pradesh, India.

ABSTRACT

Background: Nickel-titanium (NiTi) rotary instrumentation carries a risk of fracture, mainly as a result of flexural (fatigue fracture) and torsional (shear failure) stresses. This risk might be reduced by creating a glide path before NiTi rotary instrumentation. The aim of this study was to compare various root canal parameters with the new WaveOne single-file reciprocating system in mesial canals of mandibular molars with and without glide path using cone beam computed tomography (CBCT).

Materials and methods: One hundred mandibular molar teeth with canal curvature between 20° and 30° were divided into two groups of 50 teeth each. In Group 1, no glide path was created, whereas in Group 2, a glide path was created with PathFiles at working length (WL). In both groups, canals were shaped with WaveOne primary reciprocating files to the WL. Canals were scanned in a CBCT unit before and after instrumentation. Postinstrumentation changes in canal curvature, cross-sectional area, centric ability, residual dentin thickness, and the extent of canal transportation were calculated using image analysis software and subjected to statistical analysis. Data were analyzed using Student's t-test and Mann-Whitney U-test (P < 0.05).

Results: The mean difference of root canal curvature, cross-sectional area, centric ability, and residual dentin thickness increased, whereas it reduced significantly for canal transportation in Group 2.

Conclusion: WaveOne NiTi files appeared to maintain the original canal anatomy and the presence of a glide path further improves their performance and was found to be beneficial for all the parameters tested in this study.

No MeSH data available.


Related in: MedlinePlus

(a) Line diagram represents mean difference in centric ability. (b) Line diagram represents mean difference in canal transportation.
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Figure 3: (a) Line diagram represents mean difference in centric ability. (b) Line diagram represents mean difference in canal transportation.

Mentions: The centric ability increased [Figure 2c] and the extent of canal transportation decreased significantly in Group 2 [Figures 2d, 3a and b, Table 2].


Influence of the glide path on various parameters of root canal prepared with WaveOne reciprocating file using cone beam computed tomography.

Dhingra A, Nagar N, Sapra V - Dent Res J (Isfahan) (2015 Nov-Dec)

(a) Line diagram represents mean difference in centric ability. (b) Line diagram represents mean difference in canal transportation.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4696355&req=5

Figure 3: (a) Line diagram represents mean difference in centric ability. (b) Line diagram represents mean difference in canal transportation.
Mentions: The centric ability increased [Figure 2c] and the extent of canal transportation decreased significantly in Group 2 [Figures 2d, 3a and b, Table 2].

Bottom Line: Postinstrumentation changes in canal curvature, cross-sectional area, centric ability, residual dentin thickness, and the extent of canal transportation were calculated using image analysis software and subjected to statistical analysis.Data were analyzed using Student's t-test and Mann-Whitney U-test (P < 0.05).The mean difference of root canal curvature, cross-sectional area, centric ability, and residual dentin thickness increased, whereas it reduced significantly for canal transportation in Group 2.

View Article: PubMed Central - PubMed

Affiliation: Department of Conservative Dentistry and Endodontics, D.J. College of Dental Sciences and Research, Modinagar, Uttar Pradesh, India.

ABSTRACT

Background: Nickel-titanium (NiTi) rotary instrumentation carries a risk of fracture, mainly as a result of flexural (fatigue fracture) and torsional (shear failure) stresses. This risk might be reduced by creating a glide path before NiTi rotary instrumentation. The aim of this study was to compare various root canal parameters with the new WaveOne single-file reciprocating system in mesial canals of mandibular molars with and without glide path using cone beam computed tomography (CBCT).

Materials and methods: One hundred mandibular molar teeth with canal curvature between 20° and 30° were divided into two groups of 50 teeth each. In Group 1, no glide path was created, whereas in Group 2, a glide path was created with PathFiles at working length (WL). In both groups, canals were shaped with WaveOne primary reciprocating files to the WL. Canals were scanned in a CBCT unit before and after instrumentation. Postinstrumentation changes in canal curvature, cross-sectional area, centric ability, residual dentin thickness, and the extent of canal transportation were calculated using image analysis software and subjected to statistical analysis. Data were analyzed using Student's t-test and Mann-Whitney U-test (P < 0.05).

Results: The mean difference of root canal curvature, cross-sectional area, centric ability, and residual dentin thickness increased, whereas it reduced significantly for canal transportation in Group 2.

Conclusion: WaveOne NiTi files appeared to maintain the original canal anatomy and the presence of a glide path further improves their performance and was found to be beneficial for all the parameters tested in this study.

No MeSH data available.


Related in: MedlinePlus