All 10% HP bleaching systems showed similar whitening after a 14-day use. However, the strips and prefilled disposable trays produced lower intensity of tooth sensitivity than the conventional bleaching tray system. The prefilled disposable tray produced lower risk of gingival irritation when compared to the conventional bleaching tray.

The presence of debris, defects and deformations of endodontic reciprocating instruments before and after chemical-mechanical preparation (MCP) was analyzed using scanning electron microscopy (SEM). The following 26 instruments were divided into 2 groups: Waveone (n=13) and Reciproc (n=13) and examined by SEM (150 x magnification) prior to canal preparation at 2 and 4 mm from the tip. The instruments were used in the preparation of mesial root canals of 26 extracted human permanent mandibular molars. The instruments were then washed in ultrasonic bath and subjected to new microscopic analysis of debris and deformation by a score that used the presence or absence of irregular edges, grooves, microcavities and burrs as criteria. After the SEM analysis and with the scores of the examiners, the collected data were subjected to descriptive statistical analysis using the Kruskall-Walis and Mann Whitney test at a 5% significance level. All instruments examined presented debris before and after use. A statistically significant difference was found for defects and deformation between the groups (p<0.05). The presence of defects and deformities was higher in the WaveOne instruments, and Reciproc instruments presented a lower rate.

Objective: To analyze the prevalence and severity of Molar Incisor Hypomineralization (MIH) and its relationship with dental caries in public school children in Manaus/AM. Material and Methods: Overall, 2,062 primary school children aged 6-10 years were examined to obtain MIH, DMFT, dmft and DDE indexes. The participation of five schools in each district of the city of Manaus was randomly determined, totaling 40 schools, and in each of them, two classes of each grade of elementary school in two shifts were selected, totaling 10 classes. Clinical examinations were conducted by two previously calibrated examiners in school environment under natural lighting. Data collected were submitted to descriptive statistical analysis by Chi-square, Fisher's Exact and Mann-Whitney tests at 5% significance level. Results: The prevalence of MIH in Manaus was 9.12% and no significant association with gender and age of schoolchildren was found. The mandibular arch was the most affected, with greater number of teeth being affected on the left side. The most frequently affected teeth were the mandibular permanent first molars, followed by maxillary counterparts and maxillary/mandibular central incisors. The most frequent diagnosis was mild MIH. The DMFT of children with MIH was 1.58 and dmft was 2.47, higher than those of the unaffected group. A correlation was found between DDE and MIH. Conclusion: Early diagnosis of MIH is imperative, since children affected show high risk for the development of dental caries.

RESUMO ABSTRACTObjeti vo: Avaliar o conhecimento dos professores de 1ª a 4ª série de escolas públicas do município de Manaus-AM, sobre avulsão dentária. Método: Foram entrevistados 311 profi ssionais, de todas as zonas de Manaus, por meio de formulário padronizado, contendo perguntas fechadas, abertas e de múlti pla escolha sobre avulsão dentária, reimplante e procedimentos necessários para favorecer o prognósti co em casos de dentes avulsionados. Após a entrevista, foi entregue um folder sobre os corretos procedimentos de urgência a serem adotados frente aos casos de avulsão dentária, possibilitando transformar os professores da rede pública de ensino em agentes multi plicadores do conhecimento. Resultados: 57,1% dos professores possuíam apenas formação de ensino médio e 49,8% ti nham experiência profi ssional entre 1 e 5 anos. Dos professores que realizaram treinamento de primeiros socorros (29,9%), apenas 12,9% obti veram informações sobre traumati smo alvéolo-dentário. 66,9% não souberam disti nguir os dentes decíduos dos permanentes e 61,7% apenas dariam uma toalha para o aluno morder em caso de traumati smo, não dispensando a atenção necessária ao elemento avulsionado. Apenas 5,5% realizariam o reimplante do elemento dentário no local do acidente. A maioria (55,9%) considerou que a procura do atendimento deve ser imediata, 51,1% escolheria o denti sta como profi ssional mais qualifi cado para estes casos e 58,8% escolheria a água da torneira como meio de conservação ideal para o dente avulsionado. Conclusão: Não se observou conhecimento adequado dos professores entrevistados em relação aos procedimentos de urgência a serem adotados frente à avulsão dentária, demonstrando a necessidade da inclusão deste tema na matriz curricular destes profi ssionais e também da realização de campanhas de educação em saúde, melhorando assim o prognósti co do reimplante dentário. Objecti ve:To evaluate the knowledge of 1st-4th grade teachers form municipal public schools of the city of Manaus/AM about tooth avulsion. Method: Three hundred and eleven professionals from all regions of the city of Manaus/AM were interviewed using a standardized form containing closed, open and multi plechoice questi ons about tooth avulsion, tooth replantati on and the procedures necessary to improve the prognosis in cases of avulsed teeth. Aft er the interview, a folder containing informati on about the correct urgency procedures to be adopted in case of tooth avulsion was handed to the parti cipants, in an att empt to make elementary public school teachers capable of spreading this knowledge. Results: 57.1% of the teachers had only high school educati on and 49.8% had 1 to 5 years of professional experience. From the teachers that att ended fi rst-aid training (29.9%), only 12.9% had previous informati on on dentoalveolar trauma. 66.9% could not disti nguish primary from permanent teeth, and 61.7% would only give a towel for the student to bite in case of dental trauma, not dispensing the necessary att enti on to the avulsed tooth. Only 5.5% ...

The aim of the study was to develop the Brazilian version of the Oral Health Impact Profile - Aesthetic Questionnaire (OHIP-Aes-Braz) and test its psychometric properties. The questionnaire test versions were developed by a panel of experts and a pre-test was conducted in a focus group. Data used for testing its psychometric properties were obtained from a randomized controlled clinical trial on tooth bleaching. Seventy-nine Brazilian adults were included. The questionnaires were applied before tooth bleaching treatment (baseline), one week (T1), and one month after the intervention (T2). Reliability was assessed in terms of internal consistency and stability, while validity was ascertained by criterion and construct validity. The sensitivity to change was assessed comparing the total scores at baseline and T2, using the Wilcoxon test (α = 0.05). Both stability and internal consistency (intra-class correlation coefficient=0.95, Cronbach’s α = 0.92) proved to be adequate. Construct validity was confirmed as the correlation between OHIP-Aes-Braz scores with tooth color satisfaction and self-perceived oral health were in the expected direction. A positive correlation between OHIP-Aes-Braz and OHIP-14 (rs=0.63) and OIDP (rs=0.77) was observed. The instrument was responsive once differences in total scores before and after treatment were statistically significant (p<0.001). The OHIP-Aes-Braz presented good psychometric properties and showed sensitivity to change regarding aesthetics evaluation in Brazilian adults treated with tooth bleaching. A valid and reliable instrument allows a suitable assessment of oral health-related quality of life in Brazilian patients submitted to aesthetics dental interventions.

Nas últimas décadas, houve um aumento no interesse dos profissionais de saúde acerca do uso e do conhecimento de medicamentos fitoterápicos. Entre estes, destaca-se o óleo de copaíba, por suas atividades antimicrobiana, analgésica e anti-inflamatória. Para analisar in vitro a atividade antiinflamatória das emulsões de Copaífera em macrófagos, quantificando a produção de radicais livres, utilizou-se uma cultura de macrófagos da cepa 264,7, cultivada no Meio Eagle Dulbecco Modificado completo, suplementada com 10% soro fetal bovino inativado e penicilina/estreptomicina (100 UI / mL/100 μg/mL), sendo mantidos em forno úmido a 37oC. Após a tripsinização, os macrófagos foram contados em câmara de Neubauer e submetidos à emulsão de fitoterápicos. O anti-inflamatório dexametasona (20 μg /mL) foi utilizado como padrão-ouro para comparar os resultados. A liberação de óxido nítrico foi quantificada pela produção de nitrito na reação colorimétrica de Griess. Para cada volume de 100 μL dos sobrenadantes previamente coletados dos desafios celulares, foram adicionados 100 μL de reagente Griess (Sigma Aldrich), que foram incubados em temperatura ambiente por 30 minutos Em seguida, a absorbância (540nm) foi determinada em um espectrofotômetro. Os resultados foram analisados por médias ± desvios-padrão e submetidos aos testes de Kolmogorov-Smirnov, Tukey e Dunnett. Os autores concluíram que o óleo de copaíba e suas emulsões reduzem significativamente a quantidade de óxido nítrico produzido pelos macrófagos durante o processo inflamatório.

Introdução Dentes natais são aqueles presentes na cavidade oral no nascimento. Aparecem comumente na mandíbula, podendo interferir na alimentação. Objetivo: Relatar o caso clínico de um paciente de vinte e quatro meses de vida, do gênero masculino, levado pela mãe à clínica de odontopediatria, com dificuldade de alimentação. Método: Durante a anamnese, a mãe relatou a presença de dentes no lactente, desde o nascimento, e a perda de peso. Ao ser submetido a exame clínico, observaram-se dois dentes na região de incisivos inferiores, com bastante mobilidade. Em seguida, ao ser submetido a exame radiográfico, constatou-se que eram os dentes 71 e 81. Resultado: Optou-se por extraí-los, pois não estavam bem implantados, havendo o risco de aspiração pelo bebê. Após dez dias, verificou-se que houve ganho de peso e a abordagem mostrou-se indicada e eficaz. Conclusão A decisão de tratamento depende do conhecimento científico do cirurgião-dentista, da avaliação radiográfica, do grau de mobilidade dentária e da avaliação da amamentação.

Objective: To characterize the profile of patients with special needs assisted at a Dentistry School of a Brazilian University. Material and Methods: A retrospective and descriptive study was carried out through the analysis of 329 dental records from individuals with special needs assisted at the Dentistry for Special Needs Patients discipline between 2012 and 2017. Data on gender, age, race, monthly family income, schooling, medical diagnosis of the disabling condition, drug used and type of dental procedures performed were reviewed. Data were analyzed by descriptive and inferential statistics (Shapiro-Wilk and t-student tests) with 5% significance level. Results: There was higher prevalence of females (50.5%) aged 45-54 years (18.7%), low schooling (36.2%) and monthly income of 1 minimum wage (61.9%). Most special needs were chronic systemic diseases (67.2%) and endocrine-metabolic diseases (16.7%). Among patients investigated, 66.3% used anti-hypertensive (38.3%) and anti-inflammatory (20.6%) drugs. Of dental procedures performed, curative procedures were the most prevalent in the majority of patients (90.6%). Conclusion: The profile of most patients with special needs was characterized by females with chronic systemic diseases and mean age of 39.6 years, low schooling and monthly family income of up to 1 minimum wage, whose main reason for the visit was the search for curative dental treatment.