Impact of a simplified in situ protocol on enamel loss after erosive challenge

Natália Mello Santos, Maísa Camillo Jordão, Franciny Querobim Ionta, Fernanda Lyrio Mendonça, Camilla Cristina Lira Di Leone, Marília Afonso Rabelo Buzalaf, Thais Marchini Oliveira, Heitor Marques Honório, Thiago Cruvinel and Daniela Rios

PLOS ONE, 2018, vol. 13, issue 5, 1-13

Abstract: This study investigated the effect of the period of use and location of intraoral appliances on enamel surface loss. This randomized, single blind in situ study was conducted in 2 crossover phases based on the period of use, in which maxillary and mandibular appliances were simultaneously worn. Bovine enamel blocks (n = 120) were randomly divided among the studied groups by surface hardness. In each phase, fifteen volunteers used one maxillary appliance and two mandibular appliances for 5 days. Erosive challenge was performed 4X/day by immersion in 0.01 M HCL for 2 minutes. In the continuous phase, the intraoral appliances were worn for 20 hours. In the intermittent phase the appliances were worn for 8 hours and 30 minutes. Enamel loss was determined profilometrically. The discomfort of use of the appliances were evaluated in a questionnaire. Data were analyzed by two-way ANOVA/Tukey’s test and chi-square test (p

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0196557

DOI: 10.1371/journal.pone.0196557

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