Utilização do diário alimentar no diagnóstico do consumo de sacarose em odontopediatria: revisão de literatura / Use of the food diary for diagnosing sucrose intake in pediatric dentistry: literature review

Objetivo: o presente trabalho tem por objetivo a realizaçãode uma revisão de literatura sobre a utilizaçãodo diário alimentar para diagnóstico do uso de sacarosee para o controle da cárie. Revisão de literatura:a cárie dentária está intimamente relacionada à dietaalimentar, principalmente à ingestão de carboidratos.Uma dieta rica em sacarose, além de promover umdescontrole no biofilme, descontrola as funções fisiológicasda saliva, a microbiota bacteriana, bem comoa saúde bucal por completo. Os hábitos presentes nadieta infantil constituem um fator importante para a determinaçãoda etiologia e o desenvolvimento da cáriedentária, por isso é fundamental a orientação quanto àsaúde bucal e, principalmente, ao consumo racional deaçúcar. Considerações finais: diante disso, os cuidadoscom os elementos dentários e a prevenção da cárie deveminiciar desde a infância. Para este fim, são de sumaimportância, além de uma boa higiene oral, uma dietaadequada às crianças e mudanças de atitudes dos paissobre a alimentação infantil. (AU)

Objective: the present study aims to perform a literature review on the use of the food diary to diagnose the use of sucrose and to control caries. Literature review: dental caries is closely related to diet, especially to carbohydrate intake. A diet rich in sucrose promotes the lack of control of biofilm and the physiological functions of saliva, bacterial microbiota, and the entire oral health. The habits present in the infant diet are important factors to determine the etiology and development of dental caries, so it is essential to instruct children about oral health and especially about the rational consumption of sugar. Final considerations: therefore, the care for dental elements and caries prevention should start at childhood. Hence, proper oral hygiene, as well as an adequate diet for children and changes in the attitudes of parents regarding infant diet habits is of utmost importance. (AU)

A relação entre ciclo menstrual e gengivite / The relationship between the menstrual cycle and gingivitis

A gengivite é uma doença inflamatória que interfere nos tecidos de suporte dos dentes. Inicia-se pelo acúmulo da placa bacteriana sobre as faces dentárias e a margem gengival, promovendo a liberação de produtos tóxicos que são efeitos da combinação da bactéria e do hospedeiro. Há indícios de que os hormônios sexuais, principalmente os esteroidais, que estão presentes no ciclo menstrual, apresentem efeitos sobre a saúde periodontal, causando impactos diretos na inflamação gengival e em possíveis alterações de substâncias no fluido gengival. Para tanto, realizou-se uma pesquisa de campo com o intuito de validar a relação entre o ciclo menstrual e a gengivite e seus possíveis diagnósticos frente aos hormônios sexuais que se apresentam de forma tão relevante. OBJETIVO: O objetivo do presente trabalho é verificar através de uma pesquisa de campo, se durante o ciclo menstrual, as alterações hormonais causadas neste período têm capacidade de gerar alterações nos tecidos gengivais. METODOLOGIA: Trata-se de uma pesquisa de campo, realizada por meio de artigos indexados na base científica SciELO e avaliação clínica e sondagem da gengiva de 20 voluntárias durante o período pré-mentrual, menstrual e período pós-mentrual de cada uma.(AU)

Gingivitis is an inflammatory disease that affects the supporting tissues of the teeth. It begins by the accumulation of bacterial plaque on the dental faces and the gingival margin, promoting the release of toxic products that are effects of the combination of bacteria and the host. There are indications that the sex hormones, especially the steroidal ones, that are present in the menstrual cycle, have effects on the periodontal health, causing direct impacts on gingival inflammation and possible alterations of substances in the gingival fluid. Therefore, a field research was carried out with the purpose of validating the relationship between the menstrual cycle and gingivitis and its possible diagnoses against the sex hormones that present themselves in such a relevant way. OBJECTIVE: The objective of the present study is to verify through a field survey whether, during the menstrual cycle, the hormonal changes caused in this period have the capacity to generate alterations in the gingival tissues. METHODOLOGY: This is a field study, carried out by means of articles indexed in SciELO scientific basis and clinical evaluation and gingival probing of 20 volunteers during the pre-mentual period, menstrual period and post-mentual period of each.(AU)

Influence of bioactive particles on the chemical-mechanical properties of experimental enamel resin infiltrants.

OBJECTIVE: This study aimed at evaluating the chemophysical properties of experimental resin infiltrants (ERIs) doped with different bioactive particles. METHODS: A control resin infiltrant (CR) was formulated using triethylene glycol dimethacrylate (TEGDMA) and ethoxylated bisphenol A dimethacrylate (BisEMA). Moreover, five experimental ERIs were also created by incorporating the following bioactive fillers (10 wt%) into the CR: hydroxyapatite (Hap), amorphous calcium phosphate (ACP), zinc-polycarboxylated bioactive glass (BAG-Zn), bioactive glass 45S5 (BAG 45S5), and calcium silicate modified with beta tricalcium phosphate (ß-TCP). ICON® resin infiltrant was also used as control. All the ERIs used in this study were assessed for degree of conversion (DC), Knoop microhardness (KHN), softening ratio (SR), tensile cohesive strength (TCS), modulus of elasticity (E-modulus), water sorption (WS), and solubility (SL). Data were subjected to ANOVA and Tukey's test (α = 5%). RESULTS: ICON® presented the lowest DC, KHN, TCS, E-modulus, and SR. Incorporation of bioactive fillers into CR caused significant increase in the KHN. Conversely, no significant effect was observed on DC, TCS, and E-modulus. The resin infiltrant containing Hap showed a significant increase in softening ratio, while, ICON® presented the highest WS and SL. The WS of ACP-doped resin infiltrant was significantly higher than that of the Hap-doped infiltrant. The SL of the ACP-doped infiltrant was higher than CR BAG-Zn or BAG 45S5. CONCLUSION: The incorporation of bioactive particles into experimental resin infiltrants can improve the chemomechanical properties and reduce water sorption and solubility. CLINICAL RELEVANCE: Resin infiltrants doped with bioactive particles may improve the long-term performance of the treatment of white-spot lesions.

Bond Strength of Experimental Low-viscosity Resin Materials to Early Enamel Caries Lesions: Effect of Diluent/Solvent Addition.

PURPOSE: To evaluate the effect of different concentrations of monomers and solvents/diluents on the microtensile bond strength (µTBS) bond strength of experimental low-viscosity resins (infiltrants) to enamel caries-like lesions (ECLL). MATERIALS AND METHODS: Flat enamel blocks obtained from sound human third molars were submitted to ECLL formation and randomly distributed into 9 groups (n = 10): G1: TEG-DMA 100%; G2: TEG-DMA 80%, ethanol 20%; G3; TEG-DMA 80%, HEMA 20%; G4: TEG-DMA 75%, UDMA 25%; G5: TEG-DMA 60%, UDMA 20%, ethanol 20%; G6: TEG-DMA 60%, UDMA 20%, HEMA 20%; G7: TEG-DMA 75%, bis-EMA 25%; G8: TEG-DMA 60%, bis-EMA 20%, ethanol 20%; G9: TEG-DMA 60%, bis-EMA 20%, HEMA 20%. After etching with 37% phosphoric acid for 60 s, experimental infiltrants were actively applied and photocured for 60 s, then stored in 100% humidity (24 h, 37°C). Hourglass-shaped specimens were obtained and the µTBS test performed (MPa). The fracture patterns were assessed by SEM. Data were submitted to two way-ANOVA and Tukey's tests (α = 0.05). RESULTS: The highest µTBS value was observed for G4 (TEG-DMA/UDMA, 19.18 MPa) and the lowest for G5 (TEG-DMA/UDMA/ethanol, 9.00 MPa). A significant decrease in µTBS was observed for all groups containing ethanol (G2, G5, and G8). The addition of HEMA did not affect µTBS values. Most groups showed a high frequency of mixed failure between infiltrant and enamel. CONCLUSION: The addition of bis-EMA or UDMA to TEG-DMA-based infiltrants did not improve bond strength to carious enamel. The ethanol addition negatively affected the bonding strength of infiltrants to enamel caries-like lesions, regardless of the resin matrix composition of the infiltrant.

Evaluation of polymerization characteristics and penetration into enamel caries lesions of experimental infiltrants.

OBJECTIVES: To evaluate the properties of experimental infiltrant blends by comparing them with the commercial infiltrant Icon(®) and penetration homogeneity into enamel caries lesions. METHODS: Groups were set up as follows: G1 (TEGDMA 100%); G2 (TEGDMA 80%, Ethanol 20%); G3 (TEGDMA 80%, HEMA 20%); G4 (TEGDMA 75%, BisEMA 25%); G5 (TEGDMA 60%, BisEMA 20%, Ethanol 20%); G6 (TEGDMA 60%, BisEMA 20%, HEMA 20%); G7 (TEGDMA 75%, UDMA 25%); G8 (TEGDMA 60%, UDMA 20%, Ethanol 20%); G9 (TEGDMA 60%, UDMA 20%, HEMA 20%) and Icon(®). Ten specimens were comprised by each group for the following tests (n=10): degree of conversion (DC), elastic modulus (EM), Knoop hardness (KH), and softening ratio (SR). Infiltrant penetration was evaluated using confocal microscopy (CLSM). Data were subjected to two-way ANOVA and a Tukey's test (5%). Data comparing experimental materials and Icon(®) were analysed using ANOVA and Dunnett's test (5%). RESULTS: The highest DC values were found in G1, G7, G8, and G9. The lowest DC values were found in G2, G4, G5, and G6. EM and KHN were significantly lower in HEMA and with ethanol addition for all blends, except for G9. There was no significant difference among the groups regarding SR, and it was not possible to take KHN readings of G2, G5, and G8 after storage. There was no significant difference among groups for infiltrant penetration into enamel lesions. CONCLUSIONS: The addition of hydrophobic monomers and solvents into TEGDMA blends affected DC, EM, and KHN. UDMA added to TEGDMA resulted in an increase in DC, EM, and KHN. Overall, solvents added to monomer blends resulted in decreased properties. The addition of hydrophobic monomers and solvents into TEGDMA blends does not improve the penetration depth of the infiltrants.