Rotary Mtwo system versus manual K-file instruments: Efficacy in preparing primary and permanent molar root canals

Abstract

The Mtwo rotary system showed acceptable cleaning ability in both primary and permanent teeth, and achieved results similar to those of K-files in less time.

‘Volumetric analysis of hand and rotary root canal instrumentation and filling in primary teeth using Spiral Computed Tomography’ – an invitro study

“…Smaller instruments are used before larger ones, as in the step-back technique. Because of the high flexibility and fatigue resistance of Mtwo instruments, the original canal curvature is preserved and the procedure is efficient, safe, and saves time 3 .…”

“…Rotary instruments were introduced to paediatric endodontics by Barr et al 2 . The advantages of rotary NiTi instruments over hand instruments include facilitating canal preparation, preserving the shape of curved canals, and producing smooth surfaces in lesser time than with manual instruments 3 .…”

Evaluation of the Effect of using Electrosurgery in Pulpectomy of Deciduous Teeth on Succedaneous Teeth: An Animal Study

“…2 Rotary systems may be used for decreasing the working time, too. [9][10][11][12] Also, the laser method may have the advantage of reduced time for instrumentation when compared with both rotary or hand instrumentation techniques. 5 Decreasing the working time may stand the main comparative superiority of electrosurgical pulpectomy, which calls for evaluation in further studies.…”

Süt Di̇şleri̇nde Ni̇kel Ti̇tanyum Döner Aletleri̇ni̇n Kullaniminin Değerlendi̇ri̇lmesi̇

“…42,43 Araştırmalarda kanal formunu K3, Race ve Protaper aletlerinden daha iyi koruduğu görülmüştür. 45 Mohammed Azar ve ark 46 70 adet süt ve 70 adet daimi azı dişi kullanarak gerçekleştirdikleri çalış-malarında, Mtwo ve K tipi eğelerinin temizleme etkinliklerini ve çalışma sürelerini değerlendirmişlerdir. Araştırmalarının sonucunda; daimi ve süt dişleri kanallarında apikal, orta ve koronal üçlü bölgesinde temizleme etkinliği açısından fark gözlenmemiştir.…”