Incidence of Dentinal Microcracks during Root Canal Preparation with Self Adjusting File, Reciproc Blue and ProTaper Next.
Introduction: Forces formed during root canal instrumentation could cause the crack formation in dentinal walls. Their propagation may result in vertical root fracture and eventually tooth loss. The aim of the study was to explore microcrack formation after root canal preparation with Self-adjusting...
| Published in: | Iranian Endodontic Journal Vol. 15; no. 1; pp. 6 - 12 |
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| Main Authors: | , , , , , |
| Format: | diagnostic images research Journal Article |
| Published: |
Iranian Association of Endodontists
Winter2020
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=141657509&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 141657509 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17357497 EUW9 jtl: Iranian Endodontic Journal issn: 17357497 maglogo: N pubinfo: dt: Winter2020 vid: 15 iid: 1 pid: 76280 pub: Iranian Association of Endodontists artinfo: ui: 141657509 141657509 141657509 10.22037/iej.v15i1.26667 141657509 ppf: 6 ppct: 6 formats: tig: atl: Incidence of Dentinal Microcracks during Root Canal Preparation with Self Adjusting File, Reciproc Blue and ProTaper Next. aug: au: Katanec, Tomislav Miletić, Ivana Baršić, Gorana Kqiku-Biblekaj, Lumnije Žižak, Mirza Krmek, Silvana Jukić affil: School of Dental Medicine, University of Zagreb, Gunduliceva 5, Zagreb, Croatia sug: subj: Root Canal Therapy Adverse Effects Tooth Fractures Dental Equipment Bicuspid Tomography, X-Ray Computed Human Adolescence Adult Sodium Hypochlorite Edetic Acid Image Processing, Computer Assisted In Vitro Studies Adolescent: 13-18 years Adult: 19-44 years ab: Introduction: Forces formed during root canal instrumentation could cause the crack formation in dentinal walls. Their propagation may result in vertical root fracture and eventually tooth loss. The aim of the study was to explore microcrack formation after root canal preparation with Self-adjusting File (SAF), Reciproc Blue (RB), and ProTaper Next (PTN) instruments on young premolars by means of micro-computed tomography (micro CT). Methods and Materials: Forty-five upper premolars with two canals, were extracted due to orthodontic reasons from patients aged 16 to 20 years and stored for up to two months. The teeth were scanned with a micro-CT (Nikon XT H 225, Tring, UK) at structural resolution of 20.2 µm and randomly divided into three groups: SAF, RB, and PTN. Specimens were instrumented and irrigation was performed with 12 mL of 2.5% sodium hypochlorite (NaOCl) and 4 mL of 17% ethylenediaminetetraacetic acid (EDTA) per root canal. Subsequently, the specimens were scanned under the same conditions as before, in wet condition and 24 h after drying. The presence of microcracks in dentinal walls was evaluated using the image-processing software Volume Graphics VGStudio Max 3. Results: No dentinal defect was found in any evaluated specimen, neither in pre-nor post-operative scans in wet and dry condition. Conclusion: Under the circumstances of this in vitro study instruments with improved design and metallurgy do not cause dentinal microcracks in young premolar teeth. pubtype: Academic Journal doctype: diagnostic images research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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