Canal shaping with waveone primary reciprocating files and protaper system: A comparative study

Elio Berutti, Giorgio Chiandussi, Davide Salvatore Paolino, Nicola Scotti, Giuseppe Cantatore, Arnaldo Castellucci, Damiano Pasqualini

Research output: Contribution to journalArticlepeer-review


Introduction: 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 1 = 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.

Original languageEnglish
Pages (from-to)505-509
Number of pages5
JournalJournal of Endodontics
Issue number4
Publication statusPublished - Apr 2012


  • Canal shaping
  • nickel-titanium
  • ProTaper
  • reciprocating motion
  • WaveOne

ASJC Scopus subject areas

  • Dentistry(all)


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