Incidence of Apical Root Cracks and Apical Dentinal Detachments after Canal Preparation with Hand and Rotary Files at Different Instrumentation Lengths

Li, Rui; Kaiwar, Anjali; Shemesh, Hagay; Wesselink, Paul R.; Hou, Benxiang; Wu, Min-Kai

doi:10.1016/j.joen.2012.09.019

Cited by 118 publications

(105 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Published studies on this topic always embrace cutting procedures and postoperative observation through optical microscopy technique. Under this methodological approach, it has been stated that NiTi rotary preparation per se might have an etiological role in the creation of dentinal defects (4)(5)(6)(7)(8)(9). Although these studies seem experimentally sound at first sight, as most of control groups using non-prepared teeth showed, in most cases, no dentinal defects, the destructive approach of the method stands for its major drawback, since the preoperative condition of the dentin is unknown.…”

Section: Introductionmentioning

confidence: 99%

On the Causality Between Dentinal Defects and Root Canal Preparation: A Micro-CT Assessment

et al. 2016

View full text Add to dashboard Cite

This study aimed to evaluate the cause-effect relationship between canal preparation with ProTaper Universal (PTU) system and dentinal defects formation using micro-computed tomography (micro-CT) analysis. Forty mesial canals of mandibular molars with a type II Vertucci's canal configuration were scanned at an isotropic resolution of 14.16 µm. The sample was assigned to an experimental (n = 30) and a control (n = 10) groups, and the mesial canals were prepared with PTU system up to F2 instrument. The specimens from the experimental group were scanned and the cross-section images of the mesial roots, before and after preparation, were screened to identify the presence of dentinal defects. In the control group, the specimens were sectioned perpendicularly to the long axis of the root into 1-mm-thick slices (n = 80) and examined under optical microscope. Once a dentinal defect was detected, the slice was scanned through micro-CT. In the experimental group, dentinal micro-cracks were observed in 4,828 slices (24.04%). In all cross-section images, dentinal defects identified in the postoperative images were already present in the corresponding preoperative image. In the control group, 13 out of 80 slices (16.25%) had at least one dentinal defect visualized under stereomicroscopy, which was identified after a further micro-CT scanning. Micro-CT showed reliability as similar as optical microscopy in detecting dentinal defects, adding the possibility of tracking the dentinal tissue, before and after canal preparation, and providing a clear visualization of micro-cracks. Root canal preparation with PTU system did not induce the formation of new dentinal defects.

show abstract

Section: Introductionmentioning

confidence: 99%

On the Causality Between Dentinal Defects and Root Canal Preparation: A Micro-CT Assessment

et al. 2016

View full text Add to dashboard Cite

show abstract

“…[6,7] Liu et al, reported that 25% of roots have shown defect or cracks which were instrumented using ProTaper. [8] Hin et al reported that ProTaper caused cracks in 35% of roots instrumented with it. [9] Kansal et al in his study also concluded that ProTaper when used in full sequence results in more microcracks formation than the other systems.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Effect of Hyflex EDM on Root Dentin during Root Canal Preparation-A Stereomicroscopic Study

Sankhe¹

2017

International Journal of Medical and Dental Sciences

View full text Add to dashboard Cite

show abstract

“…Bu tip sistemlerde ortaya çıkan bu sonucun, şekillendirme esnasında aletlerin kök kanallarında oluşturdukları döngüsel kuvvetlerin etkisi ile ortaya çıktığı düşünülebilir. 46 Kök dentininde bu şekilde oluşan hasarların dereceleri, kullanılan aletlerin sabit veya artan açılanmasına, çapraz kesit geometrisine, yiv formuna ve uç tasarımına göre değişiklik göster-ebilir. 46 PTG grubu, OSNG grubuna göre daha düşük kök dentin dayanım değerlerinin oluşmasına neden olmuş-tur.…”

Section: 27unclassified

“…46 Kök dentininde bu şekilde oluşan hasarların dereceleri, kullanılan aletlerin sabit veya artan açılanmasına, çapraz kesit geometrisine, yiv formuna ve uç tasarımına göre değişiklik göster-ebilir. 46 PTG grubu, OSNG grubuna göre daha düşük kök dentin dayanım değerlerinin oluşmasına neden olmuş-tur. Bu, döner aletlerin kök dentininde daha az mikro çat-lak oluşmasını sağlayan, kullanılan aletlerle kök dentini arasındaki temas alanı olarak tanımlanan radyal alandan kaynaklabilir.…”

Section: 27unclassified

Effect of different rotary systems on fracture resistance of post-core reconstructed teeth

Görler¹,

Zan²,

Altunbaş³

et al. 2017

Yeditepe J Dent

View full text Add to dashboard Cite

Incidence of Apical Root Cracks and Apical Dentinal Detachments after Canal Preparation with Hand and Rotary Files at Different Instrumentation Lengths

Cited by 118 publications

References 21 publications

On the Causality Between Dentinal Defects and Root Canal Preparation: A Micro-CT Assessment

On the Causality Between Dentinal Defects and Root Canal Preparation: A Micro-CT Assessment

Evaluation of Effect of Hyflex EDM on Root Dentin during Root Canal Preparation-A Stereomicroscopic Study

Effect of different rotary systems on fracture resistance of post-core reconstructed teeth

Contact Info

Product

Resources

About