Light-polymerization of composite resins through different thicknesses of dental tissue

dc.contributoren-US
dc.creatorOrozco Barreto, Rossany
dc.creatorAlvarez Gayosso, Carlos
dc.creatorGuerrero Ibarra, Jorge
dc.date2015-11-05
dc.date.accessioned2018-03-16T15:59:25Z
dc.date.available2018-03-16T15:59:25Z
dc.identifierhttp://ojs.unam.mx/index.php/rom/article/view/52998
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1204174
dc.descriptionObjective: To determine the thickness of dental tissue through which Prime Dent Resin® might exhibit light-polymerization with minimum shrinkage and suitable curing depth. Method: 80 laminae measuring 1, 2, 3 and 4 mm thickness were obtained from molars (20 laminae per group). Contraction was measured and resin shrinkage was calculated by polymerization (Visilux 2, 3M) though each lamina (60 s, 400 mW/cm2). Bonded-disk technique was used. Depth of curing tests were undertaken by measuring the thickness of polymerized resin according to ADA’s specifi cation number 27. A control group without dental tissue was prepared for both properties. Data were analyzed using ANOVA with Tukey test (p < 0.001). Results: Curing depth: curing depth decreased as thickness increased. All groups revealed statistically significant differences. The thickness that exhibited lesser shrinkage nonetheless meeting with suitable curing depth (ADA establishes minimum value of 1 mm) was the 3 mmgroup. Shrinkage: as thickness increased, shrinkage decreased; no statistically signifi cant difference was reported for groups 2 and 3 mm. Conclusions: According to obtained results, it is possible to polymerize through a 3 mm thickness, therefore polymerization is not recommended through a 4 mm depth. It will be necessary to obtain further mechanical properties using different thicknesses of dental tissue.en-US
dc.formatapplication/pdf
dc.languagespa
dc.publisherFacultad de Odontologíaes-ES
dc.relationhttp://ojs.unam.mx/index.php/rom/article/view/52998/47145
dc.rights##submission.copyrightStatement##es-ES
dc.sourceRevista Odontológica Mexicana; Vol 19, No 4-INGes-ES
dc.source1870-199X
dc.subjecten-US
dc.subjectPolymerization contraction, shrinkage, curing depth, light-curing resin, thickness of dental lamina, polymerization.en-US
dc.titleLight-polymerization of composite resins through different thicknesses of dental tissueen-US
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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