دورية أكاديمية
Shaping Ability of Reciprocating and Rotary Systems After Root Canal Retreatment: a CBCT Study.
| العنوان: | Shaping Ability of Reciprocating and Rotary Systems After Root Canal Retreatment: a CBCT Study. |
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| المؤلفون: | Suzuki EH; School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil., Sponchiado-Júnior EC; School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil., Pandolfo MT; Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil., Garcia LDFR; Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil., Carvalho FMA; Superior School of Health Sciences, State University of Amazonas, Manaus, AM, Brazil., Marques AAF; Superior School of Health Sciences, State University of Amazonas, Manaus, AM, Brazil. |
| المصدر: | Brazilian dental journal [Braz Dent J] 2022 Mar-Apr; Vol. 33 (2), pp. 12-21. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Dental Foundation of Ribeirão Preto Country of Publication: Brazil NLM ID: 9214652 Publication Model: Print Cited Medium: Internet ISSN: 1806-4760 (Electronic) Linking ISSN: 01036440 NLM ISO Abbreviation: Braz Dent J |
| أسماء مطبوعة: | Original Publication: Ribeirão Preto : Dental Foundation of Ribeirão Preto, [1990- |
| مواضيع طبية MeSH: | Root Canal Filling Materials* , Spiral Cone-Beam Computed Tomography*, Dental Pulp Cavity/anatomy & histology ; Equipment Design ; Molar/anatomy & histology ; Molar/diagnostic imaging ; Retreatment ; Root Canal Obturation ; Root Canal Preparation/methods ; X-Ray Microtomography/methods |
| مستخلص: | The purpose of this in vitro study was to evaluate the shaping ability of reciprocating and continuous rotary systems after root canal retreatment. After preparation and root canal filling, mesial canals of 54 mandibular molars were distributed into 3 groups (n=18), according to the filling material removal and re-instrumentation protocols: WOG group - WaveOne Gold system; PTN group - ProTaper Next system; and PTU group - ProTaper Universal system. Cone-beam computed tomographic (CBCT) images acquisition of the mesial root canals was performed at different moments: (1) before instrumentation (unprepared root canals), (2) after preparation and filling, (3) after filling material removal and (4) re-instrumentation. The apical transportation (AT), centering ability (CA) and change in root canal diameter were assessed by CBCT analysis. The remaining filling material quantification was performed by radiographic examination. The statistical analyses were performed using the 3-way ANOVA, Tukey-Kramer, Kruskal-Wallis and Dunn multiple Comparison tests (p<0.05). The tested instruments did not show full CA (=1.0). PTN group had greater AT at the 5th mm in comparison with the WOG group (p<0.05). After re-instrumentation, WOG group had greater root canal diameter change at the 1st and 5th mm than PTN and PTU groups (p<0.05). There was no significant difference among groups when comparing the amount of remaining filling material after re-instrumentation (p>0.05). The tested systems provided minimal alteration in root canal morphology at the apical portion after root canal retreatment. However, WOG promoted greater change in root canal diameter. |
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| المشرفين على المادة: | 0 (Root Canal Filling Materials) |
| تواريخ الأحداث: | Date Created: 20220504 Date Completed: 20220506 Latest Revision: 20221111 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC9645160 |
| DOI: | 10.1590/0103-6440202204772 |
| PMID: | 35508032 |
| قاعدة البيانات: | MEDLINE |
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