Does a toothpaste containing blue covarine have any effect on bleached teeth? An in vitro, randomized and blinded study
| Autor: | Hugo Merchan, Michael C. Floros, Osmir Batista de Oliveira Júnior, Andrea Abi Rached Dantas, Ávery Roncolato, Milton Carlos Kuga, Janaína Freitas Bortolatto |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Trent Univ |
| Rok vydání: | 2015 |
| Předmět: |
Toothbrushing
business.product_category Time Factors Bleach genetic structures Metalloporphyrins Surface Properties Dentistry Color Isoindoles Tooth brushing 03 medical and health sciences Bleaching Agents Random Allocation 0302 clinical medicine stomatognathic system Reference Values Dentin Dentifrice Tooth Bleaching Medicine Animals General Materials Science Single-Blind Method Denture Cleansers Dental Enamel Tooth Bleaching Agents Dentifrices Orthodontics Toothpaste business.industry 030206 dentistry Hydrogen Peroxide lcsh:RK1-715 stomatognathic diseases medicine.anatomical_structure lcsh:Dentistry Blue covarine Tooth color Cattle sense organs business 030217 neurology & neurosurgery Toothpastes Blinded study |
| Zdroj: | Brazilian Oral Research v.30 n.1 2016 Brazilian Oral Research Sociedade Brasileira de Pesquisa Odontológica (SBPqO) instacron:SBPQO Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Brazilian Oral Research, Volume: 30, Issue: 1, Article number: e33, Published: 08 MAR 2016 Brazilian Oral Research, Vol 30, Iss 1 (2016) |
| ISSN: | 1807-3107 1806-8324 |
| Popis: | Made available in DSpace on 2018-11-26T16:46:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01. Added 1 bitstream(s) on 2021-07-15T15:20:31Z : No. of bitstreams: 1 S1806-83242016000100226.pdf: 224344 bytes, checksum: 49c9fa8cd20e20fe4010613c298d11e7 (MD5) Made available in DSpace on 2018-11-26T16:46:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01 The objective of this study was to analyze the effect of bleaching toothpastes, both conventional and those containing the new whitening agent Blue Covarine, on teeth previously bleached by conventional techniques (in-office and at-home). Squared bovine enamel/dentin blocks (6.0 x 6.0 x 2.0 mm) were randomly distributed in 6 groups (n = 15), according to the technique used to bleach them (in-office: HP35%; at-home: PC10%) and the type of bleaching toothpaste (none: control; Blue Covarine containing: BC; and without Blue Covarine: NBC). Experimental groups denominated HP35%, HP35% BC and HP35% NBC received in-office tooth bleaching before toothbrushing, and groups PC10%, PC10% BC and PC10% NBC were subjected to at-home tooth bleaching prior to toothbrushing. After bleaching treatment, groups HP35% BC, PC10% BC, HP35% NBC and PC10% NBC underwent daily tooth brushing in a brushing machine for 3 minutes (150 strokes/min, with a load of 375 g). Tooth color alteration was measured by reflectance spectroscopy (Vita EasyShade, Vident, Brea, CA, USA) at: T0 (baseline) - after in-office or at-home bleaching treatment; T1 - immediately after tooth brushing; T2 - 7 days and T3 - 14 days after tooth brushing. Data was analyzed by repeated measures mixed ANOVA and the Bonferroni post hoc test, with a significance level of 5%. Statistically significant differences were found between different experimental groups, evaluation times and for the interaction between them (p < 0.001). Tooth brushing using either bleaching toothpaste (conventional or with Blue Covarine) showed no color alteration on teeth previously bleached by in-office and at-home tooth bleaching. The use of bleaching toothpastes on previously bleached teeth did not produce a color alteration. Univ Estadual Paulista UNESP, Sch Dent, Dept Restorat Dent, Araraquara, SP, Brazil Trent Univ, Trent Ctr Biomat Res, Dept Phys & Astron, Peterborough, ON K9J 7B8, Canada Trent Univ, Trent Ctr Biomat Res, Dept Chem, Peterborough, ON K9J 7B8, Canada Univ Estadual Paulista UNESP, Sch Dent, Dept Restorat Dent, Araraquara, SP, Brazil |
| Databáze: | OpenAIRE |
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