Diameter and taper variability of gutta-percha cones adapted to TruNatomyTM and RotateTM rotary file systems

Martínez, I.; Lozano, A.; Sanz, J.; Forner, Leopoldo; Llena, C.

doi:10.4317/jced.59992

Cited by 2 publications

(3 citation statements)

References 21 publications

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“…A difference in the actual dimension of the endodontic rotary/reciprocating instruments and GP points dedicated to them was also observed [4,18,26,27]. Salles at al.…”

Section: Discussionmentioning

confidence: 93%

Size accuracy of the greater taper gutta-percha points – preliminary report

Gałan,

Bobryk,

Bagińska

2024

J Pre Clin Clin Res.

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Introduction and Objective.When filling root canals with gutta-percha points (GP), good adaptation of the point to the apical diameter must be achieved through the use of a point corresponding to the size of the master apical file (MAF). GP points with a greater taper, designed to fit into root canals shaped with files with a greater taper, are currently in common use. The study was performed to evaluate the ISO compliance of GP greater taper points (4% and 6%). Materials and Method. Two boxes of GP in sizes 20, 30 and 40 (Dentsply Maillefer, Switzerland) with a taper of 4% (GP 4% group) and 6% (GP 6% group) were used. The percentage of GPs conforming to the ISO size and those not conforming to the ISO size was determined by assessing the fit of the GP apex diameter (D0) with an endodontic gauge (Dentsply Maillefer, Switzerland). Data were analysed using the chi2 test with a significance level of 0.05. Results. Overall, 58.9% of the GP points assessed were in accordance with the ISO size. Depending on the size (20, 30, 40 according to ISO), compliance was 75%, 52.5% and 44.4% in the group GP 4%, and 87.5%, 32.5% and 60% in the group GP 6%, respectively. The results were statistically significant in the GP 4% (p<0.0001) and GP 6% (p<0.05) groups. In both groups, standardisation of greater taper GP was most accurate at size 20. There were no statistically significant differences between the number of GP points with correct diameter between groups GP 4% and GP 6%. Conclusions. The study demonstrated the presence of differences between the ISO size and the actual size of the greater taper GP points. Therefore, the calibration of greater taper GP points before root canal filling should be a routine procedure.

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“…A difference in the actual dimension of the endodontic rotary/reciprocating instruments and GP points dedicated to them was also observed [4,18,26,27]. Salles at al.…”

Section: Discussionmentioning

confidence: 93%

Size accuracy of the greater taper gutta-percha points – preliminary report

Gałan,

Bobryk,

Bagińska

2024

J Pre Clin Clin Res.

View full text Add to dashboard Cite

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“…Moulle et al [8] evaluated standardised GP points from six different manufacturers and found that some of them did not comply with the ISO standard. There are reports that bigger taper gutta-percha points dedicated to continuous rotational motion instrumentation, as well as for reciprocated systems, had larger diameters in relation to the corresponding endodontic instruments [1,7,10,11]. In another study, most of the bigger taper points of two different brands had larger dimensions than they should have been [13].…”

Section: Discussionmentioning

confidence: 99%

“…However, the dimensional tolerance does not apply to the tip of the point (D 0 ). A number of studies have reported the lack of standardisation of commercially available gutta-percha points with a wide variation in diameter and taper [1,7,8,[10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the standardisation of gutta-percha points

Bielawiec,

Bobryk,

Galan

et al. 2023

J Pre Clin Clin Res.

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Introduction and Objective.In order to archieve good adaptation to the apical diameter, the master gutta-percha (GP) point should match the last instrument used at the working length. The aim of this study was to determine whether the diameters of the standard gutta-percha points comply with the ISO standard. Materials and method. The diameter at the tip (D0) of GP points (2% taper) sizes 30, 35 and 40 manufactured by Meta Biomed, South Korea (group A) and DiaDent, South Korea (group B) was assessed using an endodontic gauge (Dentsply Maillefer, Switzerland). The percentage of points larger than ISO size, compliant and smaller than ISO size, was calculated. Data were analysed using the chi2 test, with a significance level of 0.05. Results. 71.2% of assessed points met the ISO size requirements, 16.2% were smaller and 12.6% were larger than expected. These percentages were 76%, 12.6% and 11.4% in group A, and 66.4%, 19.6% and 14% in group B, respectively. There were no statistically significant differences between the percentage of proper and incorrect sizes in groups A and B overall, or for sizes 35 and 40. Only for group A 30 the standardisation of the points was more accurate than for group B 30 (p<0.001). Conclusions. This study shows that the dimensions of gutta-percha points may differ from the ISO standard. The use of an endodontic gauge can help select points with a good adaptation to the apical diameter and should be introduced as a standard procedure when obturating root canals.

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Diameter and taper variability of gutta-percha cones adapted to TruNatomyTM and RotateTM rotary file systems

Cited by 2 publications

References 21 publications

Size accuracy of the greater taper gutta-percha points – preliminary report

Size accuracy of the greater taper gutta-percha points – preliminary report

Evaluation of the standardisation of gutta-percha points

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