Comparative investigation of 2 rotary nickel-titanium instruments: protaper universal versus protaper

Ünal, Gül Çelik; Maden, Murat; Savgat, Ahmet; Orhan, Ekim Onur

doi:10.1016/j.tripleo.2009.01.010

Cited by 21 publications

(32 citation statements)

References 27 publications

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“…Since PTU is a multi-file rotary system and SAF can irrigate and prepare at the same time, preparation time with PTU was longer than that of SAF. In some studies, the time was defined as only active filing time 33,35) ; however, the other study similar to ours added file changing and irrigation time to the active working time and found similar results with us 36) . In order to help the SAF file to reach working length with straight access, glide path preparation with #20 K file is recommended for 1.5 mm SAF instrument.…”

Section: Discussionsupporting

confidence: 80%

Micro computed tomography evaluation of the Self-adjusting file and ProTaper Universal system on curved mandibular molars

Şerefoğlu

Pişkin

2017

Dent. Mater. J.

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The aim of this investigation was to compare the cleaning and shaping efficiency of Self-adjusting file and Protaper, and to assess the correlation between root canal curvature and working time in mandibular molars using micro-computed tomography. Twenty extracted mandibular molars instrumented with Protaper and Self-adjusting file and the total working time was measured in mesial canals. The changes in canal volume, surface area and structure model index, transportation, uninstrumented area and the correlation between working-time and the curvature were analyzed. Although no statistically significant difference was observed between two systems in distal canals (p>0.05), a significantly higher amount of removed dentin volume and lower uninstrumented area were provided by Protaper in mesial canals (p<0.0001). A correlation between working-time and the canal-curvature was also observed in mesial canals for both groups (SAFr 2 =0.792, p<0.0004, PTUr 2 =0.9098, p<0.0001)

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Section: Discussionsupporting

confidence: 80%

Micro computed tomography evaluation of the Self-adjusting file and ProTaper Universal system on curved mandibular molars

Şerefoğlu

Pişkin

2017

Dent. Mater. J.

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“…The methodology applied in this study using two rotary systems revealed that RT Densell files have greater cutting capacity than K3 files, although other studies comparing manual preparation to rotary systems have reported no significant differences between the two systems [13,17]. It should be mentioned that the nickel-titanium RT Densell files, originally called NiTiTiee, were employed in this study because few previous scientific research studies have considered these tools, although they are product whose market price is very affordable.…”

Section: Discussionmentioning

confidence: 91%

“…Because the RT Densell files more easily stuck to the smooth surfaces of the canal, they will likely result in a greater threading effect, most likely fracture. Not only the angle of curvature and intensity of use but also the rotational speed, the fatigue of the instrument, the torque of the machine, the force applied by the operator, the type of movement used and, in particular, the design of the files are factors that increase the possibility of instrument fracture [1,9,13,16], which may eventually occur without warning [5]. A study using Profile, K3 and Race files concluded that K3 files had the greatest cycle fatigue resistance [17] and the greatest strain and fracture resistances [18].…”

Section: Discussionmentioning

confidence: 99%

“…Records from clinical practice highlight that although these files reduce professional stress and provide efficient high-quality technical performance, there is a need to evaluate possible structural changes in relation to the number and duration of uses. Instruments in better use conditions can perform endodontic treatment more efficiently because they ensure cleanliness and disinfection of the root canal system, thus preserving the anatomical forms [13,14]. However, there are reports in the scientific literature on the convenience of using nickel-titanium rotary instruments in terms of maintaining cutting power, the removal of dentin and the number of times they can be used without compromising these properties [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Cutting Capacity in Two Types of Rotary Nickel-Titanium Instruments

Araújo¹,

Gonçalves²,

Araújo³

et al. 2015

Pesqui. bras. odontopediatria clín. integr.

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Objective: To perform laboratory analysis of the cutting ability of K3 and RT Densell files. Material and Methods: Fifty simulated root canals made of heat-curing phenolic resin, were divided into two groups were used. Group RT Densell consisted of specimens instrumented with files from the RT Densell rotary system, while the specimens in Group F3 were instrumented with files from the K3 rotary system. The simulated canals were weighed before and after instrumentation to analyze the amount of resin removed by each system. The statistical analysis of the results was performed using the program BioEstat 3.0. Descriptive statistics were applied to show the minimum and maximum data values, arithmetic mean, standard deviation and coefficient of variation, followed by statistical inference with a significance level of 5% Results: The data collected revealed that the rotary system nickel-titanium files of RT Densell brand removed 615 milligrams and the rotary system files K3 454 milligrams removed after five instrumentations. Through statistical test "t" Student, the difference between the two systems was considered statistically significant (p<0.05). Conclusion: RT Densell files have greater cutting ability than the files of the K3 brand rotary system, while the latter have.

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“…Consequently, due to having an active tip of high flexibility and because it caused a great wear in the cervical and middle thirds as a result of multiple tapers, the system made preparation of the root canals safer and more effective. 5,6,7 The system was operated at 350 rpm with a torque of 3 N.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the cleaning ability of two rotatory nickel-titanium systems: Protaper universal and heat-treated ProDesign S

Limoeiro¹,

Braitt²,

Rodrigues³

et al. 2014

Dental Press Endod

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Introduction: The purpose of endodontic instrumentation is to promote cleaning and shaping of the root canal, preparing it for final filling. Objective: The objective of this study was to evaluate, in vitro, the cleaning quality of simulated canal blocks instrumented by two nickel-titanium rotary systems. Methods: Twenty acrylic blocks (simulated canals) were used and separated into two groups of ten each. India ink was injected into the simulated canals which were wrapped up with foil to avoid influencing during instrumentation. The blocks in Group 1 were instrumented by means of the original sequence of ProTaper Universal system up to file F3. 5 ml of saline solution were used for irrigation at each change of instrument. The blocks of Group 2 were instrumented by heat-treated ProDesign S system up to file #30.05; 5ml of saline solution were also used for irrigation. After instrumentation, the blocks were photographed and analyzed in terms of cleanliness by three Masters in Endodontics. Conclusion: Within the experimental conditions of this research, it was reasonable to conclude that no statistical differences were found between the cleaning ability of both systems studied.

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Comparative investigation of 2 rotary nickel-titanium instruments: protaper universal versus protaper

Cited by 21 publications

References 27 publications

Micro computed tomography evaluation of the Self-adjusting file and ProTaper Universal system on curved mandibular molars

Micro computed tomography evaluation of the Self-adjusting file and ProTaper Universal system on curved mandibular molars

Evaluation of Cutting Capacity in Two Types of Rotary Nickel-Titanium Instruments

Evaluation of the cleaning ability of two rotatory nickel-titanium systems: Protaper universal and heat-treated ProDesign S

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