Triple-blinded randomized clinical trial comparing efficacy and tooth sensitivity of in-office and at-home bleaching techniques

Abstract Objective Our study aims to compare the efficacy and tooth sensitivity following in-office (35% hydrogen peroxide) or at-home (10% carbamide peroxide) bleaching treatments both preceded by 2% potassium nitrate (2%KF) desensitizing gel. Methodology 130 volunteers were randomly allocated to a) in-office bleaching and a placebo at-home protocol; or b) in-office placebo and at-home bleaching treatment. 2% KF was applied for 10 min before both treatments. Objective color evaluation was performed (spectrophotometer CIEL*a*b* system and CIEDE2000) to calculate the color change (ΔE00). Subjective evaluation was performed using the VITA classical shade guide followed by shade variation (ΔSGU) at the beginning and end of bleaching treatment and 2 weeks post-bleaching. Tooth sensitivity was daily recorded using a Likert scale varying from 1 (no sensitivity) to 5 (severe sensitivity). Analysis was carried out using non-parametric tests. Results Regarding the color change, at-home bleaching resulted in significant color improvement compared to in-office treatment for the parameters Δb* (p=0.003) and Δa* (p=0.014). Two weeks post-bleaching, the at-home treatment resulted in significant color improvement compared to in-office treatment for the parameters Δb* (p=0.037) and ΔE00 (p=0.033). No differences were observed in either ΔSGU parameters. Concerning sensitivity, patients treated with in-office bleaching reported more tooth sensitivity than the at-home group only on the first day after bleaching started, without significant differences in the other periods evaluated (p>0.05). Conclusions At-home and in-office bleaching, preceded by a desensitizing agent, were effective for vital teeth bleaching and 10% carbamide peroxide produced a higher whitening effect than 35% hydrogen peroxide in the short time evaluation. Tooth sensitivity rates were similar for the two techniques tested.

Inter-relação dentística x prótese x periodontia para reabilitação estética e funcional: relato de caso / Interrelationship of restorative dentistry, periodontics and prosthodontics for aesthetic and functional rehabilitation: a case report

Na busca por um sorriso perfeito, laminados cerâmicos têm sido considerados alternativas interessantes, porém, em alguns casos, somente a estética dentária não é suficiente, e intervenções cirúrgicas periodontais podem ser indicadas para melhorar a harmonia do sorriso. No entanto, além do restabelecimento estético, a função é extremamente importante e, por isso, procedimentos protéticos reabilitadores podem ser necessários. Com base nisso, o objetivo do presente relato de caso foi descrever a técnica de execução da cirurgia plástica periodontal em dentes anteriores e a técnica da confecção de facetas laminadas e coroas totais em dissilicato de lítio para restabelecer a harmonia estética e funcional(AU)

In the search for a perfect smile, ceramic veneers are an interesting alternative. However, dental aesthetics is not enough in some cases and periodontal surgery may be indicated to improve the smile harmony. However, apart from aesthetics, function is extremely important and rehabilitation prosthetic procedures may be required. Based on this, the aim of this report was to describe a technique of periodontal plastic surgery for anterior teeth followed by the fabrication of lithium disilicate ceramic veneers and crowns to restore aesthetics and functional harmony(AU)

Reabilitação funcional e estética em dentes anteriores e posteriores: relato de caso / Functional and aesthetic rehabilitation in anterior and posterior teeth: a case report

Hoje há uma relevante busca por parte dos pacientes por alternativas de tratamentos a fim de melhorar ou alterar a aparência do sorriso. Isso ocorre devido à grande valorização atual por um sorriso com uma estética agradável. No entanto, a busca não está restrita somente aos elementos anteriores. Muitos pacientes demonstram a preocupação em melhorar a estética e a função também dos elementos posteriores. Com base nisso, o objetivo deste trabalho foi relatar um caso clínico sobre reabilitação funcional e estética utilizando lentes de contato, facetas, coroas e overlay de cerâmica(AU)

Currently, there is a search for alternative treatments to improve or change the appearance of the smile by the patients. This occurs due to the currently high appreciation for a smile with a pleasing aesthetic. However, the search is not restricted only to the anterior elements, since many patients show the desire to improve the aesthetics as well as the function of the posterior elements. Based on this, the aim of this study was to presente a case report of functional and esthetic rehabilitation using ceramic veneers, crowns and overlay restorations(AU)

Resinas compostas de preenchimento único: relato de caso / Bulk-fill composite resins: a case report

As resinas compostas são amplamente utilizadas na odontologia como primeiro material de escolha para restaurações diretas, principalmente devido à necessidade estética. Recentemente, está sendo utilizado uma nova categoria de materiais denominados resinas de preenchimento único. São resinas utilizadas como base e/ou para restauração total que podem ser aplicadas em camadas de até 4 mm de espessura, apresentando baixa tensão e baixa contração de polimerização. Com base nisso, o objetivo deste trabalho é relatar um caso clínico de restaurações de resina composta em dentes posteriores utilizando resina de preenchimento único, bulk fill(AU)

Composite resins are widely used in Dentistry as the material of choice for direct restorations, mainly due to aesthetic reasons. Recently, a novel class of materials, called bulk fill composites were introduced. They may be used as a base material or for full composite resin restorations with layers of up to 4 mm thickness, because of their low polymerization shrinkage and and stresses. The aim of this study is to present a case report on the use of bulk-fill composite resin in posterior teeth(AU)

Remodelação estética do sorriso através de laminados cerâmicos minimamente invasivos / Aesthetic reshaping using minimally invasive ceramic laminates

A demanda por tratamentos estéticos que buscam um sorriso com aparência natural e com adequada longevidade clínica tem aumentado tanto por parte dos pacientes como por parte dos profissionais. O esclarecimento e a disponibilidade de novas técnicas fizeram surgir a preocupação por tratar esteticamente, no entanto mediante tratamentos minimamente invasivos, que não gerem danos à estrutura dental. Nesse contexto, surgiram os laminados cerâmicos minimamente invasivos. Este artigo relata um caso clínico de remodelação estética de dentes anteriores com manchamento por tetraciclina, através de laminados cerâmicos minimamente invasivos...

The demand for aesthetic treatments searching a natural-looking smile and longevity is increasing by patients and dentists. The knowledge and availability of new techniques increased the desire for aesthetic treatments that could be minimally invasive and not generating damage to tooth structure. In this context, minimally invasive ceramic laminates appeared. This paper reports the aesthetic reshaping of anterior teeth with tetracycline staining using minimally invasive ceramic laminates...

Malocclusion Diagnosis: Normative Criteria and Self-Perception of Adolescents

To estimate malocclusion prevalence, severity, treatment needs and self-perception in a group of students.Material and Methods:This cross-sectional study was carried out with 50 students aged 12 years who attended a public school in the municipality of Tapejara, Brazil in 2012. Oral exam concerning malocclusion was performed by a single dentist (Dental Aesthetic Index) and a questionnaire about self-perception was applied. Data were presented in the form of descriptive analysis.Results:Prevalence of malocclusion was observedin 98% of students, and maxillary overjet was the most frequent malocclusion. According to the DAI index, 52% of students had indication for orthodontic treatment, and of these, 22% were considered severe or disabling malocclusion. Regarding the self-perception of adolescents about their oral health status, 86% of respondents reported the desire to use orthodontic appliance.Conclusion:The results demonstrated that malocclusion prevailed over normal occlusion. However, the perception of adolescents was higher compared to normative criteria. This suggests that small malocclusion problems are quickly perceived by adolescents...