Root Canal Anatomy Preservation of WaveOne Reciprocating Files with or without Glide Path

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• 作者：Elio Berutti ; MD ; DDS^&lowast ; ; Davide Salvatore Paolino ; MS ; PhD^&dagger ; ; Giorgio Chiandussi ; MS ; PhD^&dagger ; ; Mario Alovisi ; DDS^&lowast ; ; Giuseppe Cantatore ; MD ; DDS^&Dagger ; ; Arnaldo Castellucci ; MD ; DDS^§ ; ; Damiano Pasqualini ; DDS^&lowast ; ; ^{damianox@mac.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Glide path ; nickel-titanium ; pathfile ; reciprocating motion ; WaveOne
• 刊名：Journal of Endodontics
• 出版年：2012
• 出版时间：January 2012
• 年：2012
• 卷：38
• 期：1
• 页码：101-104
• 全文大小：333 K

文摘

This study evaluated the influence of glide path on canal curvature and axis modification after instrumentation with WaveOne Primary reciprocating files.

Methods

Thirty ISO 15, 0.02 taper Endo Training Blocks were used. In group 1, glide path was created with PathFile 1, 2, and 3 at working length, whereas in group 2, glide path was not performed. In both groups, canals were shaped with WaveOne Primary reciprocating files at working length. Preinstrumentation and postinstrumentation digital images were superimposed and processed with Matlab r2010b software to analyze the curvature radius ratio (CRr) and the relative axis error (rAe), representing canal curvature modification. Data were analyzed with 1-way balanced analyses of variance at 2 levels (P < .05).

Results

Glide path was found to be extremely significant for both CRr parameter (F = 9.59; df = 1; P = .004) and rAe parameter (F = 13.55; df = 1; P = .001).

Conclusions

Canal modifications seem to be significantly reduced when previous glide path is performed by using the new WaveOne nickel-titanium single-file system.