To evaluate the erosive potential of orange juice modified by food additives in enamel and dentine.Calcium lactate pentahydrate (CLP), xanthan gum (XG), sodium linear polyphosphate (LPP), pyrophosphate tetrabasic (PP), tripolyphosphate (STP) some their combinations were added to an juice. Pure a calcium-modified used as negative (C-) positive (C+) controls, respectively. In phase 1, 15 juices tested for using pH-stat analysis. 2, alone combination with good results 1 previous studies...

Abstract This paper introduces a comprehensive methodology designed to overcome the challenges of replicating oilfield scale conditions in laboratory settings, particularly for evaluating performance inhibitors high-CO2 scenarios, with focus on pre-salt region. The study involves adapting Tube Blocking Tests (TBT) accurately simulate field where CO2 concentrations exceed capacity cationic and anionic brines under atmospheric pressure. core lies modifying TBT equipment by replacing...

Abstract The aim of this in vitro study was to evaluate qualitatively the surface morphology enamel bleached with 35% hydrogen peroxide (HP) followed by application fluoridated agents. Forty intact pre molars were randomly distributed into four groups ( n = 10), treated as follows: Group I (control group) remained stored artificial saliva at 37°C, II ‐ HP; III HP + acidulated fluoride (1.23%) and IV neutral (2%). experimental received three applications bleaching gel after last all specimens...

This in vitro study evaluated the influence of surface pretreatment a feldspathic ceramic on shear bond strength two different resin cements.Although several conventional treatments have been used ceramic, few studies investigated effects an alternative treatment, association aluminum oxide sandblasting with Nd:YAG and Er: YAG lasers.Sixty samples made were divided into three groups (n = 20) treated (1) controlled-air abrasion Al(2)O(3) + 10% hydrofluoric acid (HF), (2) Er:YAG laser, (3)...

The aim of this study was to evaluate the effect pH on activation matrix metalloproteinases (MMPs) human coronal (CD) and radicular dentin (RD). CD RD were pulverized powder, proteins extracted with 1% phosphoric acid. demineralized powder separately incubated in following solutions: 4-aminophenylmercuric acetate (control) or a buffer solution at different pHs (2.5, 4.5, 5.0, 6.0, 7.0). After incubation, separated by electrophoresis measure MMP activities zymography. To assess solubilized...

Hyposalivation and dental root exposure in the elderly are problems that require special oral care. In this context, characteristics of certain toothpastes particular importance. Thus, aim study was to evaluate cytotoxicity dentin wear caused by seven different toothpastes. For analysis, 40 specimens were submitted 20,000 brushing cycles with distilled water (control group-CG), using a machine. Dentin surface loss (SL) measured contact profilometer. The each toothpaste tested cultured...

The aim of this study was to create a synthetic juice (SJ) be used as surrogate for natural orange juices in erosion studies, verifying its erosive potential. SJ formulated based on the chemical composition from different locations. Forty enamel and 40 root dentin specimens were randomly assigned into 4 experimental groups (n=10): SJ; 1% Citric Acid (CA); Minute Maid Original® (MM) Florida Natural (FN). immersed their respective solutions 5 min, 6x/day days, an erosion-remineralization...

Protein supplementation may be an alternative to reduce the erosive potential of acidic drinks. The aim this in vitro study was evaluate orange juice modified by dietary proteins. A commercially available added 0.2 g/L casein, 2.0 ovalbumin and their combination. with no additives a calcium-modified were used as negative positive controls, respectively. Human enamel dentin specimens (n=11) tested erosion-remineralization cycling model. Enamel analyzed surface microhardness profilometry,...

The aim of this study was to report a protocol use for low-level laser therapy (LLLT) in traumatic ulcer the lower lip after inferior alveolar nerve block anesthesia (IANBA). A 3-year-old patient, male, undergoing treatment carious lesions submitted an indirect pulp capping tooth 74 under IANBA. procedure completed without intercurrences, but on next day, child presented extensive left lip, with complaint pain. Two sequential applications LLLT were applied punctual mode pressure around...

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Objetivo: Revisar a literatura quanto aos efeitos dos produtos de venda livre destinados ao clareamento dental disponíveis no mercado brasileiro. Revisão literatura: Foram consultadas as bases dados PubMed, Scielo e Google Scholar, além busca manual referências. A incessante pelo sorriso perfeito aumenta procura por procedimentos estéticos, como o dental, recomendado cirurgiões-dentistas devido à sua segurança eficácia comprovadas. Contudo, em meio demanda alternativas mais acessíveis que...

Aim: The aim of this in vitro study was to evaluate the dissolution potential an artificial powdered juice human dental enamel. Methods: Three commercially available beverages were tested by first evaluating pH and titratable acidity. After this, 40 enamel specimens individually immersed respective solutions for 120 min (n = 8) as follows: C+: distilled water (positive control); TAN: orange juice; DEL: natural juice, CC: Coca-Cola C-: citric acid solution 1% (negative control). At end, each...

The aims of this study were to 1) assess the association between erosive tooth wear (ETW) according BEWE (Basic Erosive Wear Examination) scoring system and salivary parameters 2) compare ETW severity in subgroup children with ETW. This cross-sectional included 52 preschool aged 5 years paired by sex. A calibrated examiner assessed using criteria, stimulated saliva was collected determine flow, osmolality, pH, buffering capacity. divided into two groups: without (n=26; score 0) scores 1 2)....

Background: This case report presents the dimensional changes in dental arches a patient with hypohidrotic ectodermal dysplasia (HED) after complete denture rehabilitation, an 18-year follow-up period. Case report: The had anodontia and was successfully rehabilitated conventional dentures at 3, 4, 5, 7, 9, 12, 16, 21 years of age. Each successive larger contained more teeth so as to accommodate for increase size developing jaw. A series diagnostic casts were used measure arch length width...