Dioguardi Mario, Troiano Giuseppe, Laino Luigi, Lo Russo Lucio, Giannatempo Giovanni, Lauritano Floriana, Cicciù Marco, Lo Muzio Lorenzo
Department of Clinical and Experimental Medicine, Foggia University Foggia, Italy.
Department of Human Pathology, School of Dentistry, University of Messina Italy.
Int J Clin Exp Med. 2015 Oct 15;8(10):17830-4. eCollection 2015.
The aim of this study is to highlights possible differences in the volume of shaping and canal surface area after the using of common endodontic devices ProTaper Universal and WaveOne systems.
Forty ISO 15, 0.02 taper, S-shaped endo-training Blocks (Dentsply, Maillefer) were assigned in two groups (n = 20 for each group). For each block the initial working length (WL) was evaluated with a 10 K-files (Dentsply Maillefer), so the glide path was created with PathFile 1, 2 and 3 (Dentsply Maillefer) at the WL. After that, simulated canals in the group 1 were shaped with S1, S2, F1 and F2 at WL; while in group 2 it was used single-file WaveOne primary in reciprocating motion. After shaping, the resin blocks were analysed with Skyscan 1172 scanner (Skyscan, Kontich, Belgium) and then volumetrically at a source voltage of 65 kV and a source current of 153 uA.
No statistically differences (P > 0.05) have been found in terms of volume and surface area after the use of ProTaper Universal and WaveOne systems.
Although, results from micro-CT analysis revealed that Wave One result in a decrease of volume and surface area of shaping than ProTaper Universal, differences are not statistically significant.
本研究旨在突出使用常见的根管治疗器械ProTaper Universal和WaveOne系统后，根管预备量和根管表面积可能存在的差异。
将40个ISO 15、0.02锥度的S形根管训练模块（登士柏，迈弗）分为两组（每组n = 20）。对于每个模块，先用10号K锉（登士柏迈弗）评估初始工作长度（WL），然后在WL处用PathFile 1、2和3（登士柏迈弗）建立引导通路。之后，第1组的模拟根管在WL处用S1、S2、F1和F2进行预备；而第2组则使用WaveOne单支锉以往复运动方式进行预备。预备完成后，用Skyscan 1172扫描仪（Skyscan，孔蒂奇，比利时）对树脂模块进行分析，然后在源电压65 kV、源电流153 μA的条件下进行体积分析。
使用ProTaper Universal和WaveOne系统后，在体积和表面积方面未发现统计学差异（P > 0.05）。
尽管显微CT分析结果显示，WaveOne预备后的根管体积和表面积比ProTaper Universal减小，但差异无统计学意义。
