Weight loss and surface roughness of hard chairside reline resins after toothbrushing: Influence of postpolymerization treatments

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMendonça, Márcio José
dc.creatorMachado, Ana Lucia
dc.creatorGiampaolo, Eunice Teresinha
dc.creatorPavarina, Ana Claudia
dc.creatorVergani, Carlos Eduardo
dc.date2014-05-27T11:21:52Z
dc.date2016-10-25T18:22:10Z
dc.date2014-05-27T11:21:52Z
dc.date2016-10-25T18:22:10Z
dc.date2006-05-01
dc.date.accessioned2017-04-06T01:18:39Z
dc.date.available2017-04-06T01:18:39Z
dc.identifierInternational Journal of Prosthodontics, v. 19, n. 3, p. 281-287, 2006.
dc.identifier0893-2174
dc.identifierhttp://hdl.handle.net/11449/68878
dc.identifierhttp://acervodigital.unesp.br/handle/11449/68878
dc.identifierWOS:000237769900012
dc.identifier2-s2.0-33745020922
dc.identifierhttp://www.quintpub.com/journals/ijp/abstract.php?article_id=2243
dc.identifierhttp://www.quintpub.com/userhome/ijp/ijp_19_3_Mendonca_12.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890189
dc.descriptionPurpose: To evaluate the effect of 2 postpolymerization treatments on toothbrushing wear (weight loss) and surface roughness of 3 autopolymerized reline resins-Duraliner II (D) (Reliance Dental), Kooliner (K) (Coe Laboratories), and Tokuso Rebase Fast (T) (Tokuyama Dental)-and 1 heat-polymerized resin, Lucitone 550 (L) (Dentsply International). Materials and Methods: Specimens (40 x 10 x 2mm) of each material (n = 24) were prepared and divided into 3 groups: control (no postpolymerization treatment); water bath (immersion in water at 55°C); and microwave (microwave irradiation). Specimens were dried until constant weight was achieved and the surface roughness (Ra) was measured. Tests were performed in a toothbrush machine using 20,000 strokes of brushing at a weight of 200 g, with the specimens immersed in 1:1 dentifrice/water slurry. Specimens were reconditioned to constant weight and the weight loss (mg) and surface roughness were evaluated. Data were analyzed by 2-way analysis of variance and followed by Tukey test (α = .05). Results: In the control group, the weight loss of materials D and T was lower (P < .05) than that of L. No differences among materials were found after postpolymerization treatments (P > .05). The weight loss of material T (control = 0.5 mg) was significantly increased (P < .05) after postpolymerization treatments (water bath = 1.9 mg; microwave = 1.8 mg). For materials K and T, the toothbrushed surface roughness was higher (P < .05) after microwave and waterbath postpolymerization treatments. Material L showed increased surface roughness after microwave postpolymerization treatment. Conclusion: The toothbrushing wear resistance of L was not superior to the reline resins. The postpolymerization treatments did not improve the toothbrushing wear resistance of the materials and produced an increased surface roughness for materials L, K, and T.
dc.languageeng
dc.relationInternational Journal of Prosthodontics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectacrylic acid resin
dc.subjectbiomedical and dental materials
dc.subjectduraliner II
dc.subjectkooliner
dc.subjectLucitone
dc.subjectmethacrylic acid derivative
dc.subjectpolymer
dc.subjectTokuso Rebase Fast
dc.subjecttoothpaste
dc.subjectwater
dc.subjectchemistry
dc.subjectcomparative study
dc.subjectdenture
dc.subjecthuman
dc.subjectinstrumentation
dc.subjectmaterials testing
dc.subjectmicrowave radiation
dc.subjectradiation exposure
dc.subjectsurface property
dc.subjecttooth brushing
dc.subjectAcrylic Resins
dc.subjectDental Materials
dc.subjectDentifrices
dc.subjectDenture Bases
dc.subjectDenture Liners
dc.subjectDenture Rebasing
dc.subjectHumans
dc.subjectMaterials Testing
dc.subjectMethacrylates
dc.subjectMicrowaves
dc.subjectPolymers
dc.subjectSurface Properties
dc.subjectToothbrushing
dc.subjectWater
dc.titleWeight loss and surface roughness of hard chairside reline resins after toothbrushing: Influence of postpolymerization treatments
dc.typeOtro


Este ítem pertenece a la siguiente institución