Aesthetic rehabilitation with strip crowns in Pediatric Dentistry: a case report / Reabilitação estética com coroas de acetato em Odontopediatria: relato de caso

Abstract Even with all the preventive measures used in pediatric dentistry, early childhood caries is a problem faced daily in pediatric dentistry, and mainly affects the vestibular surface of the anterior teeth in children younger than 71 months. The present study reports a case of aesthetic-functional rehabilitation per formed with the help of laboratory-made strip crows and composite in a 5-year-old patient affected by multiple lesions of early childhood caries. Composite resin restorations were performed on all upper anterior teeth to restore aesthetics and function, offering a better quality of life for the child and her family. The preparation of composite resin crowns with the help of strip crowns resulted in a shorter clinical time, a better aesthetic result and the restoration of the patient's smile and self-esteem.

Resumen A pesar de todas las medidas preventivas utilizadas en odontología pediá trica, caries de la primera infancia es un problema que enfrentan todos los días en la odontología pediátrica, y sobre todo afecta a la cara vestibular de los dientes anteriores en niños menores de 71 meses. El presente es tudio reporta un caso de rehabilitación estético-funcional realizado con la ayuda de coronas de acetato hechas en laboratorio y resina compuesta en un paciente de 5 años de edad afectado por múltiples lesiones de caries en la primera infancia. Se realizaron restauraciones de resina compuesta en todos los dientes anteriores superiores para restaurar la estética y la función, ofreciendo una mejor calidad de vida para el niño y su familia. La preparación de coronas de resina compuesta con la ayuda de coronas de tiras dio como resultado un tiempo clínico más corto, un mejor resultado estético y la restauración de la sonrisa y la autoestima del paciente.

Resumo Mesmo com todas as medidas preventivas utilizadas em odontopediatria, a cárie pre coce da infância, consiste um problema enfrentado diariamente pelo Odontopediatra, e acomete principalmente a superfície vestibular de dentes anteriores em crianças menores de 71 meses. Este estudo relata um caso de reabilitação estética-funcional em uma paciente de 5 anos de idade. Foram realizadas restaurações de resina com posta em todos os dentes superiores anteriores para restabelecimento da estética e função, oferecendo melhor qualidade de vida a criança e seu núcleo familiar. Com a confecção de coroas de resina composta conseguiu-se menor tempo clínico, bom re sultado estético e o restabelecimento do sorriso e auto-estima da paciente.

Analysis of the biofilm formed on the surface of a glass-ionomer cement associated with different concentrations of chlorhexidine diacetate.

PURPOSE: This cross-over in situ experiment evaluated the microbial composition and quantified the total polysaccharides in the biofilm formed on the surface of a high viscosity glass-ionomer cement (GIC) mixed with chlorhexidine diacetate (CHX) in concentrations of 0.5%, 1% and 2%. GIC without CHX was used as control. METHODS: The volunteers (n= 8) tested each material for a 7-day period, by using a palatal acrylic device containing four round specimens, all fabricated with the same material. An increasing order of CHX concentration and a 15-day washout period between each concentration was adopted. The biofilm formed was collected and inoculated in specific culture media and thereafter, the total microorganisms, total streptococci, Streptococcus mutans and Lactobacillus spp were counted. Total polysaccharides were quantified by using a phenol-sulfuric method. Microbiologic data were analyzed by ANOVA for repeated measures and Tukey tests, and the total polysaccharide content by Friedman and Dunn's tests. Significance level was set at 5%. RESULTS: Microorganism counts showed statistically significant differences among groups only for Lactobacillus (P< 0.05), that were significantly higher for group GIC+CHX 2% compared with GIC and GIC+CHX 0.5%. However, the concentration of total polysaccharides in the biofilm was lower for groups containing 1% and 2% of CHX. CLINICAL SIGNIFICANCE: The addition of chlorhexidine in the studied concentrations did not reduce the microorganism counts, but caused reduction of biofilm density.

Influences of the insertion method in glass ionomer cement porosity.

UNLABELLED: The aim of this study was to evaluate the presence of porosities inside the glass ionomer cement (GIC) after different techniques of material insertion. MATERIAL AND METHOD: Specimens were prepared with high-viscosity GIC Ketac Molar Easymix and divided into three groups according to the insertion method: spatula (PI), Centrix injector (CI), and low-cost syringe (LCS). The specimens were fractured and observed with scanning electronic microscopy to quantitatively evaluate porosity inside the material using Image J Software. RESULTS: Statistical analysis, ANOVA application, and Tukey test to significance level of 5%, revealed that there was no statistical difference between the groups. CONCLUSION: Although the use of LCS has not decreased the porosity of the material, this insertion method is easy, accessible, and low cost, which makes it a viable alternative of use in the ART technique and in others bucal health programs.

Hipomineralización incisivo y molar: diagnóstico diferencial / Incisor and molar Hypomineralization: differential diagnosis

La hipomineralización de primeros molares frecuentemente es acompañada con una hipomineralización de incisivos (HIM - Hipomineralización Incisivo y Molar) esto es comúnmente encontrado en la práctica clínica. El esmalte hipomineralizado es frágil, puede fracturarse y dejar expuesta la dentina, causando sensibilidad dental y aumento del riesgo de caries. La prevalencia de HIM varía de 3,6 a 25% en el norte de Europa, siendo considerada un problema de salud pública. En cuanto a los factores etiológicos los datos no son definidos, por lo cual causas sistémicas parecen importantes. Los posibles factores etiológicos de este cambio son a menudo relacionados con problemas en el embarazo y enfermedades de la infancia en los tres primeros años de vida. El HIM es frecuentemente confundido con otros defectos del esmalte como amelogénesis imperfecta, la fluorosis y la hipoplasia, sin embargo, detalles sobre las características clínicas de esta condición pueden diferenciarlo de otros defectos del esmalt

Hypomineralized first molar often in combination with hypomineralized incisors (MIH - molar incisor hypomineralization) is a common finding in everyday practice. In this condition, hypomineralized dental enamel is fragile and soft, and it can break easily leading to an exposed dentin, and causing dental sensitivity and progression of caries lesions. The prevalence of MIH range from 3.6 to 25% in North of Europe that consider this condition a public health problem. No conclusive information was reported about the etiologic factors of MIH, however, systemic causes seem to be of importance. Several aetiological factors are mentioned as the cause of this condition and they are frequently associated with complications during pregnancy and childhood diseases during the first three years of life. MIH is frequently misinterpreted as fluorosis, hypoplasia or amelogénesis imperfect, however, this condition presents defined clinical aspects that can distinct it from the other defects

Hipominerazación de incisivos y molares: aspectos clínicos de la severidad / Molar and incisors hypomineralization: clinical aspects of the severity

La hipomineralización de incisivos y molares (HIM) es un trastorno de desarrollo de los primeros molares y de los incisivos permanentes. El esmalte afectado es frágil y fácilmente se puede desprender dejando expuesta la dentina, lo cual favorece la sensibilidad dentinaria y el desarrollo de lesiones cariosas. Los posibles factores etiológicos se asocian a alteraciones durante la gestación y a algunas enfermedades de la primera infancia. El tratamiento depende de la severidad del caso y puede incluir restauraciones de los dientes cariados, extracciones cuando estén indicadas, conservación y/o recuperación del espacio mediante aparatología ortodóncica. Los pacientes afectados por HIM exhiben signos y síntomas clínicos definidos, ello permite clasificarlos de acuerdo con la severidad y con las características de la hipomineralización. El objetivo de este trabajo es presentar las características clínicas asociadas con la hypomineralization incisivo-molar, de niños de 6 a 12 años de edad que asisten a la clínica de Estudios de Posgrado, la disciplina de Odontología Pediátrica de la Facultad de Odontología de Araraquara, UNESP, para ayudar al cirujano dentista en el diagnóstico y la toma de decisiones en el tratamiento

Molar-Incisor Hypomineralization (MIH) is an enamel development defect affecting one to four permanent first molars frequently associated with affected incisors. The enamel breakdown is common in the affected molars resulting in hypersensitivity and to dental caries development. The possible etiological factors are associated with systemic cause occurring in pregnancy, around the time of birth or in the first childhood. The treatment depends of the defect severity, and includes restorations and extractions of the teeth associated with orthodontic treatment in tooth severely affected. The aim of this study is present clinic characteristics relative to MIH in children aged 6 to 12 years treated and accompanied in Pediatric Dentistry Clinic of the Araraquara School of Dentistry, UNESP, to help dentistry in diagnosis and treatment plan