Influence of different rotary systems on the amount of apically extruded debris in mandibular molars (An In vitro study)

Khodary, Sherif Adel El; Roshdy, Nehal Nabil

doi:10.21608/edj.2019.72637

Cited by 2 publications

(1 citation statement)

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“…This feature enables stress-free three-dimensional structuring of the canal. With a 0.04 taper, its adjustable core design allows for beginning to sculpt the canal pathways with size 15 and increase till size 30 [24] . XP Endo Shaper MaxWire technology, which offers superelasticity and shape memory capabilities with less cutting efficiency, may be relevant to these discoveries which fit to other reported studies [ 29] and confirmed by the results of previous study [25] As one instrument employed for preparation opposed to the number of instruments used in other groups so longer interaction that accompanied the walls of canals lead to the production of more dirt in the apical area.…”

Section: Discussionmentioning

confidence: 99%

Effect of single and multiple file systems with different metallurgical contemporary rotary systems on the apical extrusion of debris

sobh,

Hussein

2024

Egyptian Dental Journal

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Debris extrusion, is among the difficulties experienced on instrumentation that accompanied by postoperative discomfort. This research was escorted to judge the effectiveness of XP Endo Shaper,iRace and Protaper Next rotational systems considering the extruded debris. Materials &Methods:Forty-five single-rooted human mandibular premolars extracted teeth with closed apex. Selection of teeth with curvatures (0°-10°). Buccolingual and mesiodistal instructions were followed to substantiate just one canal as clarified by digital radiograph. Teeth had been sorted randomly into 3 groups of 15 teeth individually using NiTi rotational system for root canal preparation, ensuring glide path and equal representation of all ranges of curvature.Group A: XP rotating system. Group B: Protaper Next rotating system Group C: iRace rotating system. A variation of Myers and Montgomery's equipment as previously proposed in respect of the quantitative assessment of apical debris expelled. Using Eppendorf tubes at a microbalance with four decimal places in grams before and after the instrumentation. The sum of three consecutive weights was computed after five times for weighing every tube. As regard to weight estimation, subtraction had been done for tube's starting weight from its final weight.Results: Significantly, PTN group has the greatest mean value afterwards the iRace and the tiniest value has been recorded for the XPS (p<0.05). While the XPS and iRace groups (p>0.05) reported no remarkable difference. Conclusions:The mass of apically expelled debris was PTN > iRace > XPS with a statistical difference. XPS as single file extrude minimal mass of debris.

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Section: Discussionmentioning

confidence: 99%

Effect of single and multiple file systems with different metallurgical contemporary rotary systems on the apical extrusion of debris

sobh,

Hussein

2024

Egyptian Dental Journal

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Evaluation of Dentinal Crack Formation by ProTaper Next, HyFlex CM and Wave One Reciprocating File Systems at the Apical and Middle Third of Root in Mandibular Molars - An In-Vitro Scanning Electron Microscope Analysis

George¹,

A²,

Swapna³

et al. 2021

jemds

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BACKGROUND Advances in root canal instruments have led to lesser frequency of dentinal crack formation. Not many studies have been reported in literature that compare crack formation using instruments based on control memory (CM) and M wire technology. The study intended to evaluate and compare the prevalence of dentinal cracks formed by ProTaper Next (Dentsply Maillefer, Ballaigues, Switzerland), HyFlex CM (Coltene, Whaldent) and Wave One (Dentsply, Maillefer) reciprocating file systems at the apical and middle third of the mesiobuccal root canal of mandibular molars under scanning electron microscope (SEM). METHODS Forty-five extracted sound human mandibular molars were decoronated and mesial roots were retained followed by root canal instrumentation using ProTaper Next, HyFlex CM and WaveOne reciprocating files. Roots were then sectioned perpendicular to the long axis of teeth and viewed under scanning electron microscope to detect the presence of cracks. RESULTS ProTaper Next system produced more cracks compared with HyFlex and Wave One (P < 0.05) but there was no statistically significant difference between all the three groups. All the file systems showed more incidences of cracks in the apical third compared to middle third. CONCLUSIONS All the NiTi instruments produced cracks and the highest incidence of cracks was seen in the apical third compared to middle third region. KEY WORDS Dentinal Cracks, HyFlex CM, ProTaper Next, Root Canal, Wave One

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Influence of different rotary systems on the amount of apically extruded debris in mandibular molars (An In vitro study)

Cited by 2 publications

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Effect of single and multiple file systems with different metallurgical contemporary rotary systems on the apical extrusion of debris

Effect of single and multiple file systems with different metallurgical contemporary rotary systems on the apical extrusion of debris

Evaluation of Dentinal Crack Formation by ProTaper Next, HyFlex CM and Wave One Reciprocating File Systems at the Apical and Middle Third of Root in Mandibular Molars - An In-Vitro Scanning Electron Microscope Analysis

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