Evaluation of the Shaping Characteristics of ProTaper Gold, ProTaper NEXT, and ProTaper Universal in Curved Canals

Gagliardi, Jason; Versiani, Marco Aurélio; Sousa‐Neto, Manoel Damião; Plazas-Garzon, Andres; Basrani, Bettina

doi:10.1016/j.joen.2015.07.009

Cited by 152 publications

(168 citation statements)

References 30 publications

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“…Another possible explanation is the effect of the off-center cross-sectional design on PTN movement during canal preparation, especially at the second curvature of the S-shaped canals where the "swaggering movement" may become exaggerated. The overall flexibility and movement of PTN may have an unfavorable impact on the preparation outcome especially in S-shaped canals, however, studies on natural teeth found that the PTN produced significantly less canal transportation compared with PTU (38,39). Student perceptions of the PTN and PTU systems were explored in the questionnaire and results are shown in Table 1.…”

Section: Discussionmentioning

confidence: 99%

A Comparative Study of ProTaper Universal and ProTaper Next Used by Undergraduate Students to Prepare Root Canals

Alemam

Dummer

Farnell

2017

Journal of Endodontics

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AimTo determine whether final-year undergraduate dental students achieved better shaping outcomes using the new ProTaper Next system (PTN) to prepare root canals for the first time compared with the existing ProTaper Universal system (PTU) on which they had trained. A secondary aim was to explore the attitudes and preferences of the students to both systems. Materials and MethodsForty students prepared one simulated S-shaped canal using PTN and another with PTU.Images of the canals were saved before and after preparation, and the outcomes assessed included the formation of aberrations and the amount of resin removed at specific points along the canal length. Student opinions relating to PTN and PTU were collected via a questionnaire completed immediately after using the systems. For statistical analysis, the McNemar test was used to compare the incidence of aberrations, and a paired t-test was used to analyse the width measurements. Responses to the questionnaire were analysed using frequencies. Thus, McNemar's test was used for paired binary data and the marginal homogeneity test for categorical data when more than two categories was used. Finally, the overall preferences (either PTN or PTU) were analyzed using the sign / binomial test, which is a standard statistical test that allows us to determine if the proportion preferring one or the other is equal or not. ResultsCanal ledges were formed in 30% of the canals prepared with PTU, whereas no ledges were formed with PTN (P < 0.001). A middle constriction, a form of canal aberration, was created by both systems, although it occurred significantly (P = 0.006) more often with PTN. The "number of files" was judged by students to be significantly higher (P < 0.001) for PTU compared to PTN. Even though using PTN for the first time, students were more likely to recommend the system to other students for preparing S-shaped canals than PTU (P = 0.018), and preferred to use PTN in the future (P < 0.001). ConclusionsThe students who had previous experience with the use of PTU were able to produce comparable shaping outcomes when they used PTN for the first time. For preparation of Sshaped canals, the students preferred PTN over PTU in terms of the number of files and would prefer to use it in future.

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Section: Discussionmentioning

confidence: 99%

A Comparative Study of ProTaper Universal and ProTaper Next Used by Undergraduate Students to Prepare Root Canals

Alemam

Dummer

Farnell

2017

Journal of Endodontics

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“…The PTG system has a different geometry; smaller dimensions, an off-centered mass, and a regressive taper. The centering ability of PTG instruments may ensure that a greater percentage of dentin thickness is retained in the root canal and may facilitate greater bacteria elimination (27). The convex triangular cross-section and progressive taper enhance the cutting efficacy of PTG, while decreasing rotational friction between the file blade and dentin (28).…”

Section: Discussionmentioning

confidence: 99%

Apical extrusion of intracanal biofilm using ProTaper Gold, WaveOne Gold,Twisted File Adaptive, OneShape New Generation and K3XF

Zan¹,

Tunç²,

Hubbezoğlu³

et al. 2017

Eur Endod J

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Objective: To evaluate the bacterial extrusion during instrumentation with different nickel titanium (NiTi) engine-driven instruments. Methods: Ninety extracted single-canal human mandibular incisor teeth were inoculated with Enterococcus faecalis to obtain biofilm formation and were randomly divided to 6 groups (n=15). One group served as the control and was not instrumented; the other groups were prepared with ProTaper Gold (PTG; Dentsply Maillefer, Ballaigues, Switzerland), WaveOne Gold (WOG; Dentsply Maillefer), Twisted File Adaptive (TFA; SybronEndo, Orange, CA, USA), One Shape New Generation (OSNG; MicroMega, Besancon, France), and K3XF (SybronEndo) instruments. Bacteria extruded beyond the apical foramen were quantified in colony-forming units per milliliter. The number of colony-forming units in the remaining biofilm was determined for each sample. Data were analyzed using the one-way analysis of variance (ANOVA) and Tukey post-hoc tests. Results: All NiTi instruments resulted in different quantities of bacterial extrusion. The TFA group caused most bacterial extrusion (p<0.05). The PTG and WOG groups caused less bacterial extrusion than the OSNG and K3XF groups (p<0.05), but there was no statistically significant difference between the PTG and WOG groups (p>0.05). Conclusion: PTG and WOG are preferable system in terms of successful endodontic treatments. The amount of bacterial extrusion is associated with the metallurgy and design of the instrument used.

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“…Desde então, vários estudos aplicaram diferentes metodologias para essa avaliação, como uso de canais artificias 47,48 ou de dentes humanos. A avaliação pré e pós-instru-mentação também difere entre os estudos, com a utilização de imagens radiográficas periapicais 49 , microscopia eletrônica de varredura 50 e, mais recentemente, por meio de tomografia computadorizada de feixe cônico 27,41 , além de por microtomografia computadorizada 27,[51][52][53] .…”

Section: Discussionunclassified

Comparação entre as limas Reciproc e WaveOne na formatação e centralização do canal: uma revisão integrativa

Grossi¹,

Cunha²,

Lacerda

et al. 2017

Rev. da Fac. de Odontologia, UPF

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IntroduçãoO maior desafio na endodontia é a formatação e a desinfecção eficaz dos canais radiculares, a remoção de bactérias e seus subprodutos, resíduos de necrose pulpar e ou dentina contaminada 1,2 , visto que a complexidade anatômica dos canais radiculares impõe limitações durante a construção do canal cirúrgico 2,4 . Tradicionalmente, o preparo químico-mecânico (PQM) é realizado com limas manuais por meio de diferentes técnicas. No entanto, esse preparo demanda um grande número de instrumentos e, ainda, pode provocar desvios, perfurações e grandes desgastes radiculares, devido à elevada rigidez de tais instrumentos, que são produzidos em liga de aço-inoxidável 5,6 .

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Evaluation of the Shaping Characteristics of ProTaper Gold, ProTaper NEXT, and ProTaper Universal in Curved Canals

Cited by 152 publications

References 30 publications

A Comparative Study of ProTaper Universal and ProTaper Next Used by Undergraduate Students to Prepare Root Canals

A Comparative Study of ProTaper Universal and ProTaper Next Used by Undergraduate Students to Prepare Root Canals

Apical extrusion of intracanal biofilm using ProTaper Gold, WaveOne Gold,Twisted File Adaptive, OneShape New Generation and K3XF

Comparação entre as limas Reciproc e WaveOne na formatação e centralização do canal: uma revisão integrativa

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