Canal Shaping with WaveOne Primary Reciprocating Files and ProTaper System: A Comparative Study

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• 作者：Elio Berutti ; MD ; DDS^&lowast ; ; Giorgio Chiandussi ; MS ; PhD^&dagger ; ; Davide Salvatore Paolino ; MS ; PhD^&dagger ; ; Nicola Scotti ; DDS^&lowast ; ; Giuseppe Cantatore ; MD^&Dagger ; ; Arnaldo Castellucci ; MD ; DDS^§ ; ; Damiano Pasqualini ; DDS^&lowast ; ; ^{damianox@mac.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Canal shaping ; nickel-titanium ; ProTaper ; reciprocating motion ; WaveOne
• 刊名：Journal of Endodontics
• 出版年：2012
• 出版时间：April 2012
• 年：2012
• 卷：38
• 期：4
• 页码：505-509
• 全文大小：366 K

文摘

This study compared the canal curvature and axis modification after instrumentation with WaveOne Primary reciprocating files (Dentsply Maillefer, Ballaigues, Switzerland) and nickel-titanium (NiTi) rotary ProTaper (Dentsply Maillefer).

Methods

Thirty ISO 15, 0.02 taper, Endo Training Blocks (Dentsply Maillefer) were used. In all specimens, the glide path was achieved with PathFile 1, 2, and 3 (Dentsply Maillefer) at the working length (WL). Specimens were then assigned to 1 of 2 groups for shaping: specimens in group 1 were shaped with ProTaper S1-S2-F1-F2 at the WL and specimens in group 2 were shaped with WaveOne Primary reciprocating files at the WL. Pre- and postinstrumentation digital images were superimposed and processed with Matlab r2010b (The MathWorks Inc, Natick, MA) software to analyze the curvature-radius ratio (CRr) and the relative axis error (rAe), representing canal curvature modification. Data were analyzed with one-way balanced analyses of variance at 2 levels (P < .05).

Results

The instrument factor was extremely significant for both the CRr parameter (F₁ = 9.59, P = .004) and the rAe parameter (F₁ = 13.55, P = .001).

Conclusions

Canal modifications are reduced when the new WaveOne NiTi single-file system is used.