A methodology for evaluation of root canal instrumentation

Bramante, Clóvis Monteiro; Berbert, Alceu; Borges, R. P.

doi:10.1016/s0099-2399(87)80099-7

Cited by 233 publications

(202 citation statements)

References 16 publications

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“…There are number of methodologies to evaluate different instrumentation techniques in preparing root canals including plastic blocks, 11 radiographic techniques, 12 histological sections, 13 serial sectioning, scanning electron microscope 14 and silicone impressions of instrumented canals. 15 One of the latest innovations in the industrial and medical field is the use of CBCT for study purpose; this scientific tool could develop a potential in endodontic research as well. Which provide a practical and nondestructive technique for assessment of remaining root dentin thickness before and after shaping according to Gluskin et al 2001.…”

Section: Discussionmentioning

confidence: 99%

Cone-beam Computed Tomography Evaluation of Root Canal Preparation using Various Rotary Instruments: An in vitro Study

Ramanathan¹,

Solete²

2015

The Journal of Contemporary Dental Practice

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Aim:To evaluate the remaining dentin thickness of teeth after cleaning and shaping the root canal using three rotary instrumentation technique using cone-beam computed tomography (CBCT). Materials and methods:This in vitro study is being done with 30 premolar samples with 20' curvature. The study is divided into three groups a CBCT was taken to measure the shortest distance from the root canal outline to the closest adjacent root surface was measured at each level from the cementoenamel junction (CEJ) (1,3, 5 and 7 mm) before and after root canal instrumentation. The purpose of this study was to compare the effects of different instruments used to prepare curved root canals on the remaining cervical dentin thickness and total amount of dentin removed from root canals during instrumentation by using multi-slice CBCT. The remaining dentin thickness is very much necessary for the success rate of root canal treatment. However, this study helps to prove that a conservative preparation with a sound remaining dentin thickness is much more advisable.Result: It was observed that there was a significant difference at 1 and 3 mm (p < 0.05) and at 5 and 7 mm there was no significant difference ( p > 0.05). Mtwo has removed less amount dentin when compared to ProTaper Universal and ProTaper Next system at 1 and 3 mm.

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Section: Discussionmentioning

confidence: 99%

Cone-beam Computed Tomography Evaluation of Root Canal Preparation using Various Rotary Instruments: An in vitro Study

Ramanathan¹,

Solete²

2015

The Journal of Contemporary Dental Practice

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“…[5][6][7][8][9][10] The limitations of each of these methods have been extensively discussed, 11,[20][21][22][23] encouraging continuing research into technologies that allow both quantitative and qualitative three-dimensional assessments of the root canal. To this end, the present study compared the µCT and the cross-sectioning methods used to quantify apical transportation after rotary instrumentation of curved canals at 2.0, 3.5, and 5.0 mm from the apex.…”

Section: Discussionmentioning

confidence: 99%

“…The main advantages of this widely-used method are the possibility to compare the root canal structure before and after instrumentation, and the fact that the analyzes are conducted in the real image of the root canal. 10,11,20,21,24 However, disadvantages have also been described, e.g., assessment restricted to limited portions of the root canal, insofar as this is a two-dimensional technique, and material may be lost from serial tooth sectioning. Moreover, it is an invasive method, with irreversible changes to specimens.…”

Section: Discussionmentioning

confidence: 99%

“…[5][6][7][8][9] Physical crosssectioning is one of the experimental models currently available to evaluate changes in root canal anatomy before and after instrumentation. 10 However, Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.…”

Section: Introductionmentioning

confidence: 99%

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Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography

et al. 2012

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Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography Abstract: The aim of this study was to compare two methods of assessing apical transportation in curved canals after rotary instrumentation, namely, cross-sections and micro-computed tomography (µCT). Thirty mandibular molars were divided into two groups and prepared according to the requirements of each method. In G1 (cross-sections), teeth were embedded in resin blocks and sectioned at 2.0, 3.5, and 5.0 mm from the anatomic apex. Pre-and postoperative sections were photographed and analyzed. In G2 (µCT), teeth were embedded in a rubber-base impression material and scanned before and after instrumentation. Mesiobuccal canals were instrumented with the Twisted File (TF) system (SybronEndo, Orange, USA), and mesiolingual canals, with the EndoSequence (ES) system (Brasseler, Savannah, USA). Images were reconstructed, and sections corresponding to distances 2.0, 3.5, and 5.0 mm from the anatomic apex were selected for comparison. Data were analyzed using Mann-Whitney's test at a 5% significance level. The TF and ES instruments produced little deviation from the root canal center, with no statistical difference between them (P > 0.05). The canal transportation results were significantly lower (0.056 mm) in G2 than in G1 (0.089 mm) (p = 0.0012). The µCT method was superior to the cross-section method, especially in view of its ability to preserve specimens and provide results that are more closely related to clinical situations.

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“…Conventional analytical methods may employ reassembly techniques 9) , which evaluate cross-sections of root canals before and after preparation. This technique causes some loss of root material because of the thickness and lateral movement of the band saw.…”

Section: ⅳ Discussionmentioning

confidence: 99%

A comparison of canal centering abilities of four root canal instrument systems using X-ray micro-computed tomography

You

Park

2007

J Korean Acad Conserv Dent

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A methodology for evaluation of root canal instrumentation

Cited by 233 publications

References 16 publications

Cone-beam Computed Tomography Evaluation of Root Canal Preparation using Various Rotary Instruments: An in vitro Study

Cone-beam Computed Tomography Evaluation of Root Canal Preparation using Various Rotary Instruments: An in vitro Study

Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography

A comparison of canal centering abilities of four root canal instrument systems using X-ray micro-computed tomography

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