A 12-month Follow-Up Study of Pulp Oxygen Saturation in Deciduous Molars After Selective and Nonselective Carious-Tissue Removal: A Randomized Pilot Trial

ABSTRACT Objective: To compare the pulp vitality of deciduous molars before and after selective caries removal (SCR) or nonselective caries removal to hard dentin (NSCR) over one year, using oxygen saturation percentage (%SaO2). Material and Methods: Deciduous molars with deep occlusal/proximal-occlusal caries lesions were randomized to SCR (n=22) or NSCR groups (n=22). After the caries removal, the teeth were protected with calcium hydroxide cement and restored with composite resin (Filtek Z250). The pulp condition diagnosis was evaluated at baseline, immediately after caries removal, and follow-up (7 days, 1-, 6- and 12-months) by %SaO2. Pulp exposure and pulp necrosis were primary outcomes, and %SaO2 was secondary. Results: Intraoperative pulp exposure occurred in four teeth of the NSCR group (18.2%) and one tooth of the SCR group (4.5%) (p>0.05). Two cases of pulp necrosis occurred in the NSCR group (10%). No difference in %SaO2 pulp was observed in the inter-and intragroup comparison over time (p>0.05). Conclusion: Advantageously, the %SaO2 minimizes preoperatory pulp vitality diagnosis subjectivity before SCR/ NSCR treatments. Furthermore, the pilot study results suggest the pulp response of deciduous molars, when evaluated by clinical, radiographic, and pulp %SaO2 seems not to differ between teeth treated with SCR or NSCR.

Use of high-power lasers in pediatric dental surgeries: case reports.

The use of high-power diode laser technology follows the principles of minimally invasive dentistry. Laser technology is used frequently in pediatric dentistry, especially in surgical procedures, because this approach favors hemostasis, eliminates the use of sutures, improves healing, minimizes treatment time, reduces the sensation of pressure and vibration experienced by the patient, and creates more comfortable postoperative conditions. This article describes the use of high-power diode lasers to perform 3 minor oral surgical procedures--biopsy, lingual frenectomy, and operculectomy--in 2 children. In all 3 treatments, the operative time did not exceed 5 minutes, no sutures were used, and no postoperative complications were reported. Thus, high-power diode lasers can be considered an alternative approach to minor oral surgery that decreases chair time, reduces postoperative complications, and minimizes stress and anxiety in pediatric patients.

Clinical effect of photodynamic therapy on primary carious dentin after partial caries removal.

This study was conducted to assess the clinical effect of photodynamic therapy (PDT) in the decontamination of the deep dentin of deciduous molars submitted to partial removal of carious tissue. After cavity preparation, dentin samples were taken from the pulp wall of nineteen deciduous molars before and after PDT application. Remaining dentin was treated with 0.01% methylene blue dye followed by irradiation with an InGaAlP diode laser (λ - 660 nm; 40 mW; 120 J/cm2; 120 s). Dentin samples were microbiologically assessed for the enumeration of total microorganisms, Lactobacillus spp. and mutans streptococci. There was no significant difference in the number of colony-forming units (CFU) for any of the microorganisms assessed (p > 0.05). Photodynamic therapy, using 0.01% methylene blue dye at a dosimetry of 120 J/cm2 would not be a viable clinical alternative to reduce bacterial contamination in deep dentin.

Clinical effect of photodynamic therapy on primary carious dentin after partial caries removal

Abstract This study was conducted to assess the clinical effect of photodynamic therapy (PDT) in the decontamination of the deep dentin of deciduous molars submitted to partial removal of carious tissue. After cavity preparation, dentin samples were taken from the pulp wall of nineteen deciduous molars before and after PDT application. Remaining dentin was treated with 0.01% methylene blue dye followed by irradiation with an InGaAlP diode laser (λ - 660 nm; 40 mW; 120 J/cm2; 120 s). Dentin samples were microbiologically assessed for the enumeration of total microorganisms, Lactobacillus spp. and mutans streptococci. There was no significant difference in the number of colony-forming units (CFU) for any of the microorganisms assessed (p > 0.05). Photodynamic therapy, using 0.01% methylene blue dye at a dosimetry of 120 J/cm2 would not be a viable clinical alternative to reduce bacterial contamination in deep dentin.

Knowledge on oral cancer among dentistry students at Federal University of Maranhão / Conhecimento sobre o câncer oral entre estudantes de odontologia da Universidade Federal do Maranhão

Introduction: Oral cancer is a multifactorial disease of high incidence worldwide and considered a public health problem, in which prevention and early diagnosis are the best ways to reverse this situation. Purpose: To evaluate the level of knowledge on oral cancer in a population of dentistry students. Method: A questionnaire on oral cancer was applied to 150 students from six classes, divided into three groups according to their semesters. The variables studied were statistically analyzed by applying the chi-square test with confidence interval of 95% and significance level of 5%. Result: Eighty-eight students (60.61%) considered their level of knowledge on oral cancer good and regular, while 37.93% rated their knowledge as insufficient. Squamous cell carcinoma was listed as the most common cancer by only 38.25% of students, with the highest percentage of correct answers being observed for groups 2 (55.56%) and 3 (67.39%). The level of knowledge on the risk factors increased over the semesters; however, 77.85% considered their level of confidence to perform diagnostic procedures low. Conclusion: The level of knowledge on oral cancer was considered good or regular among dentistry students, and although they showed good level of knowledge on the risk factors and to specific issues of the disease, there is a clear need to implement continued educational measures throughout the course to consolidate learning on this disease. .

Introdução: O câncer oral é uma doença multifatorial com alta incidência no mundo, que vem sendo considerado problema de saúde pública, sendo a prevenção e o diagnóstico precoce as melhores formas de reverter essa situação. Objetivo: Avaliar o nível de conhecimento sobre o câncer oral em uma população de estudantes de odontologia. Método: Um questionário sobre o câncer de boca foi aplicado a 150 alunos de seis turmas, divididos em três grupos de acordo com o semestre letivo. As variáveis estudadas foram analisadas estatisticamente aplicando-se o teste do Qui-quadrado com intervalo de confiança de 95%, e nível de significância de 5%. Resultado: Oitenta e oito alunos (60,61%) consideraram seu nível de conhecimento sobre câncer oral bom ou regular, enquanto 37,93% avaliaram seu conhecimento como insuficiente. O carcinoma espinocelular foi considerado o câncer mais comum por apenas 38,25% do total de estudantes, sendo o percentual maior de acerto para os grupos 2 (55,56%) e 3 (67,39%). O nível de conhecimento sobre os fatores de risco aumentou ao longo dos semestres, entretanto, 77,85% consideram baixo o seu nível de confiança para realizar procedimentos de diagnóstico. Conclusão: O nível de conhecimento sobre câncer oral foi considerado bom ou regular entre os estudantes de odontologia entrevistados; apesar de demonstrarem um bom nível de conhecimento em relação aos fatores de risco e a questões específicas da doença, ficou clara a necessidade de implementar medidas educativas continuadas ao longo do curso de forma a consolidar o ensino sobre essa patologia. .

Evolução da cobertura das equipes de saúde bucal nas macrorregiões brasileiras / Expansion of the oral health family teams among the Brazilian regions

A saúde bucal no Brasil impulsionou-se com a implantação das Equipes de Saúde Bucal (ESB), Estratégia Saúde da Família (ESF). Este artigo propôs-se analisar a evolução da cobertura das ESB, nas macrorregiões brasileiras. Os dados foram obtidos do consolidado histórico de cobertura da saúde da família, Departamento da Atenção Básica/Ministério da Saúde (2001- 2013) e analisados no programa STATA®10.0. Observou-se que a 59,2% da quantidade de ESB I em relação ao total de equipes brasileiras implantadas no ano de 2001 estava na região Nordeste e 4,9% no Norte, em 2013: 48,5% e 7,8%, respectivamente. Quanto à proporção populacional coberta por algum tipo de ESB o Nordeste apresentou maior proporção de ESB I: 69,1% e Sudeste, menor proporção 25,6%. Ao relacionar-se a proporção ESB I/ESB II o Nordeste apresentou a pior relação 1:33,4 e o Sul melhor 1:5,6. Na análise de regressão de efeitos mistos houve associação significante entre número ESB e teto de implantação de equipes. Concluiu-se então que o número de ESB é insatisfatório, cobrindo apenas 42,1% da população brasileira, bem aquém do teto de 100%. Desde sua implantação, as ESB I apresentaram crescimento exponencial, enquanto as ESB II apresentaram um crescimento discreto.

Oral health care in Brazil boosted with the implementation of oral health teams (ESB), the Family Health Strategy (FHS). This paper set out to analyze the evolution of the coverage of ESBs in the Brazilian regions. Data were obtained from the historical consolidated coverage family health, Department of Primary Care / Ministry of Health (2001- 2013) and analyzed in STATA®10.0 program. Through them we observed, distribution of ESB I in 2001: 59.2% - 4.9% -North and Northeast in 2013: 48.5% and 7.8%, respectively. As for the population proportion covered by any kind of ESB, northwest showed a higher proportion of ESB I: 69,1% and Southeast smaller proportion 25,6%. In relating the proportion ESB I / II ESB: 1: 33,4 Northwest- wost and better South: 1: 5,6. In the analysis of mixed effects regression was no significant association between the average number ESB and cover needs. It was concluded that the number of ESB is unsatisfactory, covering only 42,1% of the population, totally apart from the ceiling of 100%. Since its implementation, the ESB I showed exponential growth, while the ESB II showed a slight growth.

Molar-Incisor Hypomineralization in Schoolchildren of São Luis, BrazilMaranhão: Prevalence and Associated Factors

To determine the prevalence of molar-incisor hypomineralization (MIH) in the permanent dentition and assess the factors associated with these change in schoolchildren of São Luís, Brazil.Material and Methods:Overall, 1179 students aged 7-14 years of both sexes were included, all with permanent first molars and incisors erupted in the oral cavity. Oral clinical examination to assess the prevalence of HMI was held at school, under natural light. In the second stage, to assess factors associated with HMI, a case-control study was conducted, in which cases were children diagnosed with HMI (n = 14) and as controls, the schoolchildÆs brother (family control, n = 10 ) and another schoolchild in the same age group bornin the same locality (community control, n = 14). A semistructured questionnaire was completed by mothers to identify possible factors associated with HMI, such as maternal education, family income, data from pregnancy and childÆs medical history in the first three years of life. Logistic regression analysis was used to estimate odds ratios (Odds Ratio -OR) and their confidence intervals at 95% (CI 95%) to assess crude and adjusted associations for confounders.Results:A prevalence of 2.5% of HMI was estimated. No association was found for the etiologic factors surveyed.Conclusion:The prevalence of HMI was lower than that reported in other cities in Brazil, but similar to data from other countries. At the difficulty and complexity in establishing the etiologic factors of HMI, cohort studies are required to clarify this change...

Histiocitose das células de langerhans: manifestações orais e cranofaciais / Langerhans cell histiocytosis: oral and craniofacial aspects

O objetivo desde trabalho foi apresentar as principais manifestações orais e crânio-faciais da Histiocitose de Células de Langerhans (HCL), enfatizando a alterações periodontais. Por apresentarem semelhanças com aspectos da Periodontite agressiva, levam à confusão no diagnóstico precoce da doença.Pretendeu-se ainda fomentar o conhecimento dos profissionais ligados a Periodontia e Odontopediatria, uma vez que grande parte dos estudos realizados afeta em sua maioria crianças e paciente jovens.