Visualization Enhancement of Dentinal Defects by Using Light-Emitting Diode Transillumination

Coelho, Marcelo Santos; Card, Steven J.; Tawil, Peter Z.

doi:10.1016/j.joen.2016.04.006

Cited by 33 publications

(29 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The use of the sectioning method precluded the ability to detect pre-existing dentinal microcracks in their experimental groups. In addition, some previous studies reported dentinal defects in unprepared control groups (Barreto et al, 2012;Burklein et al, 2013;Coelho, Card, & Tawil, 2016;Coelho, Card, & Tawil, 2017). In these studies, the authors concluded that pre-existing dentinal defects could be due to extraction forces, occlusal dysfunction, trauma, or sectioning processes.…”

Section: Discussionmentioning

confidence: 99%

Effect of Reciproc blue, XP‐endo shaper, and WaveOne gold instruments on dentinal microcrack formation: A micro‐computed tomographic evaluation

Aydın

Keskin

Özyürek

2019

Microscopy Res & Technique

View full text Add to dashboard Cite

The purpose of this study was to evaluate and compare the effect of Reciproc Blue (RPCB), XP‐endo Shaper (XPS), and WaveOne Gold (WOG) single‐files on dentinal microcrack formation using micro‐computed tomography (micro‐CT). Twenty‐four mesial roots (24 mesio‐buccal and 24 mesio‐lingual canals) of mandibular molar teeth were prepared using RPCB, XPS, and WOG files (n = 8/each group). The samples were scanned with micro‐CT in the pre‐ and post‐preparation. Then, before preparation and after preparation cross‐sectional images of the teeth were evaluated to detect the presence of microcracks. For each group, the number of microcracks was calculated as a percentage rate. The data were statistically analyzed using McNemar at 5% significance level (p < .05). Dentinal microcracks were observed in 25.99% (2,103 of 7,813), 31.99% (2,482 of 7,758), and 36.66% (2,836 of 7,731) of cross‐sectional images of the XPS, WOG, and RPCB groups, respectively. In all the groups, all the dentinal microcracks seen in the post‐treatment cross‐sectional images were present in the corresponding pre‐treatment images. Within the limitations of this study, the XPS, WOG, and RPCB files did not cause new dentinal microcrack formation or propagation of existing dentinal microcracks.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of Reciproc blue, XP‐endo shaper, and WaveOne gold instruments on dentinal microcrack formation: A micro‐computed tomographic evaluation

Aydın

Keskin

Özyürek

2019

Microscopy Res & Technique

View full text Add to dashboard Cite

show abstract

“…However, most of these assertions have been based on root sectioning studies, which in order to investigate fracture lines after the biomechanical preparation of the root canals, have used a saw to section the roots, and the resulting slices were inspected through a stereomicroscope (6). This sectioning method has a substantial drawback that may induce false-positive results, given that dentinal cracks may occur because of the tooth sectioning procedure, (7). In addition, defects previously present in root dentin may not be detected before root canal instrumentation (8).…”

Section: Introductionmentioning

confidence: 99%

Effect of Reciprocating Systems and Working Lengths on Apical Microcrack Development: a micro-CT Study

et al. 2017

View full text Add to dashboard Cite

The objective of this study was to evaluate the effect of root canal preparation with single-file reciprocating systems at different working lengths on the development of apical microcracks using micro-computed tomographic (micro-CT) imaging. Forty extracted human mandibular incisors were randomly assigned to 4 groups (n=10) according to the systems and working length used to prepare the root canals: Group A - WaveOne Gold at apical foramen (AF), Group B - WaveOne Gold 1 mm short of the AF (AF-1 mm), Group C - Unicone (AF) and Group D - Unicone (AF-1 mm). Micro-CT scanning was performed before and after root canal preparation at an isotropic resolution of 14 µm. Then, three examiners assessed the cross-sectional images generated to detect microcracks in the apical portion of the roots. Apical microcracks were visualized in 3, 1, 1, and 3 specimens in groups A, B, C, and D, respectively. All these microcracks observed after root canal preparation already existed prior to instrumentation, and no new apical microcrack was detected. For all groups, the number of slices presenting microcracks after root canal preparation was the same as before canal preparation. Root canal preparation with WaveOne Gold and Unicone, regardless of the working length, was not associated with apical microcrack formation.

show abstract

“…A different approach was adopted by Arias et al: the root canal space was covered in order to mask for the evaluators whether the canals had been instrumented or not; in that study, when the evaluators were blinded, 50% of the un-instrumented specimens showed dentinal defects (Arias et al 2014). Another recent study has focused only on un-instrumented roots; the canal space of the specimens was masked, and the evaluators observed 10% of mandibular molars with dentinal defects (Coelho et al 2016b). Moreover, this study used light-emitting diode (LED) transillumination resulting in an increase in dentinal defect detection in the same specimens, up to 47.5% (Fig.…”

Section: Methodological Aspectsmentioning

confidence: 99%

“…The addition of LED transillumination has improved the sensitivity of the sectioning methodology and should always be considered. With improved sensitivity, both the sectioning methodology and micro-CT models have shown dentinal defects in un-instrumented specimens (Coelho et al 2016b;PradeepKumar et al 2017). Having proper sensitivity is crucial for proper controls in future studies.…”

Section: Methodological Aspectsmentioning

confidence: 99%

Root-originating dentinal defects: methodological aspects and clinical relevance

2017

Self Cite

View full text Add to dashboard Cite

It was in the 1980s when the association between root-filling procedures and dentinal microcracks was made. Nowadays, root-originating microcracks, also known as dentinal defects, are recognized as a possible precursor that is part of the longitudinal process of root-originating fractures. The presence of dentinal defects has been shown to significantly decrease the outcome through a periapical microsurgery model. Several in vitro articles have been published in the past years in regards to dentinal defects, but most of them have serious methodology concerns that will be discussed in this review. A total grasp of the development and the role dentinal defects play in endodontics is crucial to the specialty. This review aims to discuss dentinal defects and their causative factors and the research models that have been used and their clinical significance. Through a comprehensive critical review of the literature, this article will express the need for further in vivo clinical research and better ex vivo methods that can replicate the clinical setting to answer several remaining questions about the development of and the role dentinal defects play in endodontics.

show abstract

Visualization Enhancement of Dentinal Defects by Using Light-Emitting Diode Transillumination

Cited by 33 publications

References 26 publications

Effect of Reciproc blue, XP‐endo shaper, and WaveOne gold instruments on dentinal microcrack formation: A micro‐computed tomographic evaluation

Effect of Reciproc blue, XP‐endo shaper, and WaveOne gold instruments on dentinal microcrack formation: A micro‐computed tomographic evaluation

Effect of Reciprocating Systems and Working Lengths on Apical Microcrack Development: a micro-CT Study

Root-originating dentinal defects: methodological aspects and clinical relevance

Contact Info

Product

Resources

About