Comparative analysis of the diameter of MTwo®  system gutta-percha points in relation to their  corresponding instruments

Salles, Alexandre Azevedo; Cord, Caroline Berwanger; Sonnemann, None Taciane Sperb; Melo, Tiago André Fontoura de; Irala, Luis Eduardo Duarte; Oliveira, Elias Pandonor Motcy de

doi:10.21726/rsbo.v10i1.894

Cited by 4 publications

(6 citation statements)

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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: 94%

“…Salles at al. [4] compared the MTwo® system and found that for almost all size/taper combinations (except 25/0.7) there were no statistically significant differences at D1 and D3. However, a comparison of other 2 brands of instrument/point systems revealed that the cones were statistically significantly greater than corresponding files at D1, D3 and D11 for ProTaper Next and D3 and D11 for WaveOne GP [18].…”

Section: Discussionmentioning

confidence: 99%

“…One of the most critical components of the root canal treatment (RCT) is the filling of the root canal. The hermetic sealing of a root canal is achieved by a combination of endodontic sealer and gutta-percha(GP) point [4]. Regardless of the root canal filling technique, unfilled spaces are often left between the points, sealer and walls of the root canal, which can lead to complications due to remaining pathogens [3,[5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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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: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Gałan,

Bobryk,

Bagińska

2024

J Pre Clin Clin Res.

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“…The hermetic sealing of a root canal is one of the basic principles of root canal treatment. Such obturation is usually achieved by combining gutta-percha points (GP) with endodontic sealer [1]. Regardless of the root canal filling technique, small gaps are often left between the points, sealer and walls of the root canal, which can enable endodontic pathogens to survive [2,3].…”

Section: Introductionmentioning

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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