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dc.contributor.authorJordão-Basso, Keren Cristina-
dc.contributor.authorKuga, Milton Carlos-
dc.contributor.authorKeine, Katia Cristina-
dc.contributor.authorGaloza, Marina Oliveira Gonçalves-
dc.contributor.authorSó, Marcus Vinicius Reis-
dc.identifier.citationJournal of Research in Dentistry, v. 1, n. 3, p. 246, 2013.-
dc.description.abstractPurpose: The purpose of this study was to evaluate the increase of the cervical area and dentin thickness in mesial and distal walls of the mesial canals from mandibular molars after the use of LA Axxess (LA), CP Drill (CP) and Gates-Glidden (GG) rotary instruments. Material and Methods: Sixty root canals from thirty mandibular first molar were sectioned 3 mm below the cement-enamel junction, divided in 3 groups (n = 20 root canals, each) according to rotary instrument used, and the cervical images were captured before and after pre-enlargement instrumentation. The increase of the instrumented cervical area (mm2) and the dentin removal thickness (mm), at mesial and distal walls were calculated using Image tools software, by comparison of images. Data were analyzed by ANOVA and Tukey tests (p=0.05). Results: All rotary instruments promoted thickness reduction in dentin walls. In mesial wall, all rotary instruments promoted similar thickness reduction of dentinal wall and did not differ from each other (p>0.05). In distal wall, LA Axxess instrument promoted higher dentin thickness reduction than other groups (p<0.05). The three rotary instruments promoted different increase at the instrumented cervical area (p<0.05), LA promoted the highest increase area and GG and CP presented similar results. Conclusion: LA 20/0.06 promoted the highest thickness reduction in distal wall and increase of cervical area of root canal. On the other hand, CP was the safest instrument, with lower dentin removal of distal wall and similar increased area to GG.en
dc.sourceCurrículo Lattes-
dc.subjectCervical preparationen
dc.subjectRoot canal treatmenten
dc.subjectRotary instrumentsen
dc.titleComparative analysis of three rotary instruments used for coronal pre-enlargement in radicular dentin thickness and root canal area of mandibular molarsen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul (UFRGS)-
dc.description.affiliationUniversidade Federal do Rio Grande do Sul, Faculdade de Odontologia-
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofJournal of Research in Dentistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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