Cintia Gaio Murad, Suellen Nunes de Andrade, Lucio Ramos Disconzi, Eliseu Aldrighi Munchow, Evandro Piva, Renata Correa Pascotto, Sandra Kiss Moura
{"title":"10%抗坏血酸钠凝胶应用时间对漂白牙釉质复合粘结强度的影响。","authors":"Cintia Gaio Murad, Suellen Nunes de Andrade, Lucio Ramos Disconzi, Eliseu Aldrighi Munchow, Evandro Piva, Renata Correa Pascotto, Sandra Kiss Moura","doi":"10.3109/23337931.2016.1152901","DOIUrl":null,"url":null,"abstract":"<p><p><b>Objective</b> To analyze bond strength to bleached enamel following application of 10% sodium ascorbate gel. <b>Material and methods</b> Forty third molars were allocated into five groups (<i>n</i> = 8): GP - unbleached specimens restored with composite resin; GN - specimens restored immediately after bleaching; and G15; G30 and G60 (test groups) - bleached specimens treated with 10% sodium ascorbate gel for 15, 30 and 60 min before restoration. The teeth were sectioned and the buccal and lingual faces were restored. After storage in distilled water (37 °C/24 h), sticks of ±0.8 mm<sup>2</sup> were tested in tensile (0.5 mm/min). Fractures were observed and classified. Data (in MPa) were analyzed with one-way ANOVA and Tukey tests (<i>α</i> = 0.05). <b>Results</b> No differences were found among GP (26 ± 6.0), G15 (23 ± 7.3), G30 (25 ± 6.1) and G60 (25 ± 5.1), with GN (15 ± 5.5) showing the lowest bond strength (<i>p</i> < 0.0001). <b>Conclusion</b> The application of 10% sodium ascorbate gel for 15 min after bleaching with 37.5% hydrogen peroxide restored the bonding to enamel.</p>","PeriodicalId":6997,"journal":{"name":"Acta Biomaterialia Odontologica Scandinavica","volume":"2 1","pages":"49-54"},"PeriodicalIF":0.0000,"publicationDate":"2016-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/23337931.2016.1152901","citationCount":"17","resultStr":"{\"title\":\"Influence of 10% sodium ascorbate gel application time on composite bond strength to bleached enamel.\",\"authors\":\"Cintia Gaio Murad, Suellen Nunes de Andrade, Lucio Ramos Disconzi, Eliseu Aldrighi Munchow, Evandro Piva, Renata Correa Pascotto, Sandra Kiss Moura\",\"doi\":\"10.3109/23337931.2016.1152901\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p><b>Objective</b> To analyze bond strength to bleached enamel following application of 10% sodium ascorbate gel. <b>Material and methods</b> Forty third molars were allocated into five groups (<i>n</i> = 8): GP - unbleached specimens restored with composite resin; GN - specimens restored immediately after bleaching; and G15; G30 and G60 (test groups) - bleached specimens treated with 10% sodium ascorbate gel for 15, 30 and 60 min before restoration. The teeth were sectioned and the buccal and lingual faces were restored. After storage in distilled water (37 °C/24 h), sticks of ±0.8 mm<sup>2</sup> were tested in tensile (0.5 mm/min). Fractures were observed and classified. Data (in MPa) were analyzed with one-way ANOVA and Tukey tests (<i>α</i> = 0.05). <b>Results</b> No differences were found among GP (26 ± 6.0), G15 (23 ± 7.3), G30 (25 ± 6.1) and G60 (25 ± 5.1), with GN (15 ± 5.5) showing the lowest bond strength (<i>p</i> < 0.0001). <b>Conclusion</b> The application of 10% sodium ascorbate gel for 15 min after bleaching with 37.5% hydrogen peroxide restored the bonding to enamel.</p>\",\"PeriodicalId\":6997,\"journal\":{\"name\":\"Acta Biomaterialia Odontologica Scandinavica\",\"volume\":\"2 1\",\"pages\":\"49-54\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-03-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.3109/23337931.2016.1152901\",\"citationCount\":\"17\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Biomaterialia Odontologica Scandinavica\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3109/23337931.2016.1152901\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2016/12/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Biomaterialia Odontologica Scandinavica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3109/23337931.2016.1152901","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2016/12/1 0:00:00","PubModel":"eCollection","JCR":"","JCRName":"","Score":null,"Total":0}
Influence of 10% sodium ascorbate gel application time on composite bond strength to bleached enamel.
Objective To analyze bond strength to bleached enamel following application of 10% sodium ascorbate gel. Material and methods Forty third molars were allocated into five groups (n = 8): GP - unbleached specimens restored with composite resin; GN - specimens restored immediately after bleaching; and G15; G30 and G60 (test groups) - bleached specimens treated with 10% sodium ascorbate gel for 15, 30 and 60 min before restoration. The teeth were sectioned and the buccal and lingual faces were restored. After storage in distilled water (37 °C/24 h), sticks of ±0.8 mm2 were tested in tensile (0.5 mm/min). Fractures were observed and classified. Data (in MPa) were analyzed with one-way ANOVA and Tukey tests (α = 0.05). Results No differences were found among GP (26 ± 6.0), G15 (23 ± 7.3), G30 (25 ± 6.1) and G60 (25 ± 5.1), with GN (15 ± 5.5) showing the lowest bond strength (p < 0.0001). Conclusion The application of 10% sodium ascorbate gel for 15 min after bleaching with 37.5% hydrogen peroxide restored the bonding to enamel.
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