1. Influence of mandibular and palatal intraoral appliances on erosion in situ study outcome
- Author
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Maisa Camillo Jordão, Franciny Querobim Ionta, Bianca Tozi Portaluppe Bergantin, Fernanda Lyrio Mendonça, Natália Mello dos Santos, Heitor Marques Honório, Thais Marchini de Oliveira, and Daniela Rios
- Subjects
Dental erosion ,Enamel ,Protocols ,Dentistry ,RK1-715 - Abstract
Abstract The standardization of in situ protocols for dental erosion is important to enable comparison between studies. Objective: Thus, the objectives of this study were to evaluate the influence of the location of in situ intraoral appliance (mandibular X palatal) on the extent of enamel loss induced by erosive challenges and to evaluate the comfort of the appliances. Material and Methods: One hundred and sixty bovine enamel blocks were selected according to their initial surface hardness and randomly divided into two groups: GI - palatal appliance and GII - mandibular appliance. Twenty volunteers wore simultaneously one palatal appliance (containing 4 enamel blocks) and two mandibular appliances (each one containing 2 enamel blocks). Four times per day during 5 days, the volunteers immersed their appliances in 0.01 M hydrochloric acid for 2 minutes, washed and reinserted them into the oral cavity for 2 hours until the next erosive challenge. After the end of the in situ phase, the volunteers answered a questionnaire regarding the comfort of the appliances. The loss of tissue in the enamel blocks was determined profilometrically. Data were statistically analyzed by paired t-test, Chi-square and Fisher's Exact Test (p
- Published
- 2019
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