Influence of apical enlargement in cleaning and extrusion in canals with mild and moderate curvatures

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatore Borges, Mauricia Ferreira de Almeida
dc.creatorMiranda, Carlos Eduardo Saraiva
dc.creatorSilva, Silvio Rocha Corrêa da
dc.creatorMarchesan, Melissa
dc.date2014-05-27T11:25:56Z
dc.date2016-10-25T18:34:11Z
dc.date2014-05-27T11:25:56Z
dc.date2016-10-25T18:34:11Z
dc.date2011-07-06
dc.date.accessioned2017-04-06T01:51:27Z
dc.date.available2017-04-06T01:51:27Z
dc.identifierBrazilian Dental Journal, v. 22, n. 3, p. 212-217, 2011.
dc.identifier0103-6440
dc.identifier1806-4760
dc.identifierhttp://hdl.handle.net/11449/72557
dc.identifierhttp://acervodigital.unesp.br/handle/11449/72557
dc.identifier10.1590/S0103-64402011000300006
dc.identifierS0103-64402011000300006
dc.identifier2-s2.0-79959828813.pdf
dc.identifier2-s2.0-79959828813
dc.identifierhttp://dx.doi.org/10.1590/S0103-64402011000300006
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/893414
dc.descriptionOptical microscopy and morphometric analysis were used in this study to evaluate, in vitro, the cleaning of the apical region in root canals with mild or moderate curvatures subjected to biomechanical preparation with a rotary system, as well as to assess the amount of extruded material to the periapical area. Lateral incisors (n = 32), 16 with curvature angles smaller or equal to 10° (GI) and 16 between 11° and 25° angles (GII) were submitted to Hero 642 rotary instrumentation with different surgical diameters: (A) 30.02 and (B) 45.02. Irrigation was performed at each change of instrument with 5 mL of ultrapure Milli-Q water and the extruded material through the apical foramen was collected. Root cross-sections were subjected to histological analysis by optical microscopy (×40) and the images were evaluated morphometrically using the Image Tool software. Quantification of the extruded material was performed by weighing after liquid evaporation. ANOVA showed no statistically significant differences (p>0.05) among the groups with respect to the procedures used to clean the apical region. Considering the amount of extruded material, the Tukey's HSD showed that canals with mild curvature prepared with the 45.02 surgical diameter showed significantly higher values (p<0.05) that those of the other groups, which were similar between themselves (p>0.05). In conclusion, the effect of cleaning the apical region did not differ in the groups, considering root curvature and the surgical diameter of instruments used for apical preparation. The amount of extruded material was greater in canals with mild curvature that were prepared with the 45.02 surgical instrument diameter.
dc.languageeng
dc.relationBrazilian Dental Journal
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectApical extrusion
dc.subjectRoot canal cleaning
dc.subjectRotary instrumentation
dc.subjectbiomedical and dental materials
dc.subjectwater
dc.subjectanatomy
dc.subjectclinical trial
dc.subjectcomparative study
dc.subjectcontrast medium extravasation
dc.subjectcontrolled clinical trial
dc.subjectcontrolled study
dc.subjectendodontics
dc.subjectequipment design
dc.subjecthistology
dc.subjecthuman
dc.subjectimage processing
dc.subjectincisor
dc.subjectinstrumentation
dc.subjectmethodology
dc.subjectmicroscopy
dc.subjectperiodontium
dc.subjectrandomized controlled trial
dc.subjecttooth pulp
dc.subjecttooth root
dc.subjectAnatomy, Cross-Sectional
dc.subjectDental Pulp Cavity
dc.subjectEquipment Design
dc.subjectExtravasation of Diagnostic and Therapeutic Materials
dc.subjectHumans
dc.subjectImage Processing, Computer-Assisted
dc.subjectIncisor
dc.subjectMicroscopy
dc.subjectPeriapical Tissue
dc.subjectRoot Canal Irrigants
dc.subjectRoot Canal Preparation
dc.subjectTooth Apex
dc.subjectWater
dc.titleInfluence of apical enlargement in cleaning and extrusion in canals with mild and moderate curvatures
dc.typeOtro


Este ítem pertenece a la siguiente institución