Resumos odontopediatria

ODTP-P18 A CÁRIE PRECOCE DA INFÂNCIA E SEUS REFLEXOS NA SAÚDE SISTÊMICA

Universidade Federal do Maranhão

Autores: Ribeiro CCC*, SilvaMCB, Nunes AMM,Lula ECO

Early Childhood Caries and Systemic Health

Objective: To discuss about early childhood caries (ECC) and systemic health, presenting data analysis from two studies in children under 71 months that showed association of markers of nutritional deficits and markers of chronic diseases with ECC. The first study was a retrospective cohort study with 625 children in Sao Luis, which showed through a hierarchical approach that low height/age ( p = 0.019 ), and lower levels of hemoglobin ( p < 0.000 ), albumin ( p = 0.016 ) and zinc (p = .052 ) were associated with ECC. In the second study , using data from NHANES III (1988-1994) , through Poisson regression analysis adjusting for confounders (ethnicity, gender, body mass index and Health Eating Index ), it was showed that a greater number of caries in children seems associated with markers of chronic diseases such as elevated C-reactive protein levels (PR 2:09 IC 1.3 , 3.2) and insulin resistance (PR 1.7 CI 1.1, 3.1), which are markers of cardiovascular diseases and type II diabetes , respectively. The results of these studies suggest that caries severity in childhood may be a predictor of the presence of more serious systemic conditions.

ODTP-P19 BULLYING, ODONTOPEDIATRIA E ORTODONTIA: RELATO DE CASO

Universidade Cruzeiro do Sul

Autores: Modesto KBS*, D’Angelo V, Almeida ER

Bullying, Pediatric Dentistry and Orthodontics: case report

Objective:The term bullying can be defined by the act of assaulting, stalking, or exclude someone for a time and began to be researched in the 1990s, because the intensity of events related. This study aims to report the clinical case of a patient 6 years old, male, reporting episode of bullying in school, attributed to the positioning of the anterior teeth. The diagnosis and treatment plan weredeveloped by professional pediatric dentistry and orthodontics together. After the clinical pediatric dentistry, began orthodontic treatment, with monitoringconducted by booth professionals. After the first results, the patient reportedchanges in the behavior of classmates without the involvement of “mocking “ regarding their appearance and smile. Parents emphasized the positive change in school and daily life of the child. After these initial changes, the patient began to smile more often and express himself more naturally. Observing the positive reactions, we conclude that a child's behavior may be related to the appearance of their teeth and their personal relationships, especially in the school environment. This case draws attention to the importance of pediatric dentistry and orthodontists, acting together, to provide a broader treatment to the child, allowing a better quality of life.

ODTP-P20 COMPARAÇÃO DA MICRODUREZA DO ESMALTE DE DENTES DECÍDUOS DE CRIANÇAS NORMORREATIVAS E COM PARALISIA CEREBRAL

Universidade Cruzeiro do Sul - UNICSUL

Autores: Campos PH*, Andrade RSL, Rojas PL, Ferreira MCD, Santos MTBR, Guaré RO, Diniz MB

Comparison of enamel microhardness of primary teeth of cerebral palsy and normorreactive children

Objective: To compare in vitro the enamel microhardness of anterior and posterior primary teeth of normorreactive children (NR) and children with cerebral palsy (CP). Methodology: The sample was consisted of 58 exfoliated/extracted primary teeth of NR and CP children, aged between 5 and 12 years, which were distributed into 4 groups: (A) anterior teeth of CP (n= 14), (B) anterior teeth of NR (n=16),(C) posterior teeth of CP (n=14) and (D) posterior teeth of NR (n=14). These teeth were hemisectioned, embedded in acrylic resin, grounded and polished. The longitudinal microhardness analysis was carried out in a microdurometer with a Knoop indenter with a 25-gram load for 5 seconds. Three rows of 12 indentations were made from the outer surface at 10, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160 and 180 µm. The rows were spaced 100 µm from each other. The values of the three measurements at each distance were averaged for each tooth and, afterwards, for each group. The non-parametric statistical test used was the Mann-Whitney U (α=5%). Results: The microhardness means data were 253.5 ± 55.3 (A), 247.6 ± 45.7 (B), 284.4 ± 68.7 (C) and 252.2 ± 53.8 (D).There was no significant difference between the groups A and B, as well as groups C and D for each distance and global average (p>0.05).Conclusion: This study showed that the enamel microhardness of anterior and posterior primary teeth of cerebral palsy children was similar to the normorreactive children.

ODTP-P21 COMPARAÇÃO DOS PARÂMETROS DA FUNÇÃO MASTIGATÓRIA ENTRE CRIANÇAS COM SOBREPESO/OBESIDADEE EUTROFIA

Universidade Estadual de Campinas / FOP- UNICAMP

Autores: Araujo DS*, Kobayashi FY, Marquezin MCS, Fonseca FLA, Gavião MBD, Castelo PM

Comparison of masticatory function parameters between overweight/obese and normal-weight children

Objective: The influence of masticatory function on nutritional status of children is important, but it has been little studied. The objective was to evaluate the association between overweight/obesity and masticatory performance (MP) and salivary amylase and total protein (TP) concentrations in 81 children, 6-10 years, divided into two groups: overweight/obese (n=35) and normal-weight (n=46). On clinical examination, the absence of dental caries and the need for orthodontic treatment were verified. MP was evaluated by the individual’s ability to comminute a chewable test material for determining the median particle size (X50) and distribution of particles in the different sieves (“b”). Salivary samples were collected over two days, 4 times/day, for the determination of amylase and TP area under the curve (AUC). Data were analyzed using descriptive statistics and "t" test/Mann-Whitney test. A multiple logistic regression model was used to verify the association between overweight/obesity and the studied variables, controlling for confounders. X50, amylase-ASC and TP-ASC did not differ between groups. An association between overweight/obesity with highest "b" was observed, that is, their particles were retained in the larger aperture sieves (OR=2.59, CI=1.03-6.51, p=0.027). Overweight/obesesubjects were more likely to present chewed particles retained in the larger aperture sieves, consequently requiring more chewing cycles to break down the test material in smaller particles.

ODTP-P22 CORPO ESTRANHO EM MADEIRA NA ÓRBITA DE CRIANÇAS: RELATO DE DOIS CASOS COM DIFERENTES PADRÕES DE IMAGENS TOMOGRÁFICAS.

Universidade Federal do Pará (UFPA)

Autores: Horta MFR*, Pinheiro JJV, Ribeiro ALR

Wooden foreign body in the orbit of children : report of two cases with different patterns of tomographic images.

Objective: Wooden foreign bodies in the orbit can lead to a host of complications, from local infections, facial deformities, to visual problems, for this, the importance of identifying and radiographic location for correct handling. The aim of this study was to report two cases of foreign bodies in the orbit of wood two male children , that because of the trauma conditions , showed different patterns of tomographic image . In the first case, a 11 year old suffered a fall tree and presented an injury infra -orbital on the right side . When performing CT scan was been a hypodensity in the region . In the second case , the patient 3 years fell from a wooden bridge over a mangrove area , and injured the medial left orbit . The computed tomography (CT ) performed hyperdense , which may be due to contamination with other materials such as sand , mangrove , which were on the wooden splinter that hit the child . Both patients were treated surgically with removal of foreign body. There were no injuries to bone structures and both had postoperative infection , treated with antibiotics. The postoperative course was satisfactory and without visual deficits . A careful clinical examination and also the CT images are essential for proper planning and execution of surgical treatment.

ODTP-P23 DENTES VERDES – QUAL O SIGNIFICADO CLÍNICO?

Universidade de São Paulo (USP) - Faculdade de Odontologia de Bauru

Autores: Zingra ACG*, Barbério GS, Calderan MF, Silva TC, Rios D, Oliveira TM, Santos PSS, Machado MAAM

Green teeth-What is the clinical significance?

Abstract: Green teeth are an uncommon condition. This anomaly usually represents systemic disorders in pediatric patients. Objective:Presentto the pediatric dentist the systemic disorder that lies behind the green teeth.Case report: we describe a form of tooth pigmentation caused by serum bilirubin deposition during dental calcification and present the levels of bilirubin during the three months after birth when the crown of the deciduous teeth are still forming. Such anomaly does not have symptoms, but it causes a displeasing aspect and great anxiety within the family. Conclusions:The case here reported reassure the relevance of the past medical history and of the exams of prolonged conjugated hyperbilirubinemia to confirm the diagnosis. For this case, no aesthetic treatment had been undertaken because the child was still too young and not yet conditioned. The treatment plan included returns every 3 months for maintaining oral health with no caries.

ODTP-P24 DESEMPENHO DE UMA NOVA TECNOLOGIA COM INFRAVERMELHO (808 NM) NA DETECÇÃO DE LESÕES DE CÁRIE OCLUSAL - ESTUDO “IN VITRO”

Faculdade de Odontologia de Araraquara - UNESP

Autores: Bussaneli DG*, Restrepo M, Boldieri T, Pretel H, Mancini MW, Santos-Pinto L, Cordeiro RCL

Near infrared-based technology in early occlusal caries detection

Objective: This study aimed to evaluate in vitro the performance of near infrared laser transillumination (NIR-TI), for detecting early occlusal caries in permanent teeth and compare it with the Quantitative light-induced fluorescence (QLF) and DIAGNOdent (DDPen). Ninety-four occlusal surfaces presenting ICDAS scores ranging from 0 to 3 were selected. For the NIR-TI examination, images were captured using the NIR-TI prototype, which consists of a laser beam (808 nm) and an infrared CCD camera. One occlusal site on each tooth was assessed twice by two examiners. The teeth were histologically prepared and assessed for early caries presence. Sensitivity, specificity, accuracy and Az were calculated and McNemar test was applied to compare the values among the methods. Intra and inter examiners repeatability was analyzed using Cohen's Kappa coefficient. The NIR-TI showed values of sensitivity (0.68), specificity (0.85), accuracy (0.73) and area under ROC curve (0.76), similar those achieved by the fluorescence methods (p>0.05). A high intra examiner repeatability was obtained for the three tested devices. For inter examiners repeatability, the highest values were obtained by DDPen and QLF (0.81 and 0.73 respectively) whereas the NIR-TI system obtained 0.58. The results showed that the performance of the NIR-TI system was similar to DDPen and QLF, and can be a viable technology to aid in early occlusal caries detection.

ODTP-P25 DETERMINANTES GENÉTICOS DA HIPOMINERALIZAÇÃO DE MOLAR E INCISIVO

Faculdade de Odontologia de Araraquara-UNESP

Autores: Jeremias F*, Scarel-Caminaga RM, Pierri RA, Fragelli CM, Souza JF, Restrepo M, Paschoal MA, Küchler EC, Deeley K, Cordeiro RCL, Zuanon ACC, Vieira AR, Santos-Pinto L.

Apoio: FAPESP: 2011/13636-5, CAPES (Bolsa PDSE 13636-9), NIH Grant R01-DE18914

Genetic determinants of Molar-Incisor Hypomineralization
Objective: To evaluate the association between variation in enamel formation genes and susceptibility to Molar-Incisor Hypomineralization (MIH).Method: DNA samples from 71 cases with MIH and 89 unaffected controls were studied. Eleven markers in five genes [ameloblastin (AMBN), amelogenin (AMELX), enamelin (ENAM), tuftelin (TUFT1), and tuftelin-interacting protein 11 (TFIP11)] were genotyped by the TaqMan method. Chi-square was used to compare allele and genotype frequencies between cases and controls. Results: The markers rs3796704 (ENAM), rs4694075 (AMBN); rs5997096/rs134136 (TFIP11), were associated to MIH (p<0.05). Conclusion: This study demonstrates that genes involved in enamel formation are associated with enamel hypomineralization.
ODTP-P26 DIFERENTES MODELOS BACTERIANOS PARA INDUÇÃO IN VITRO DE LESÕES DE CÁRIE NÃO CAVITADAS

Universidade Cruzeiro do Sul – UNICSUL

Autores: Diniz MB*, Campos PH, Sanabe ME, Rodrigues JA, Duarte DA, Santos MTBR, Guaré RO, Lussi A, Duque C

Apoio Financeiro: FAPESP (Processo n^o. 2010/06855-0)

Different bacterial models to induce in vitro formation of non-cavitated caries lesions

Objective: To compare different bacterial models to induce in vitro formation of non-cavitated caries lesions. Methodology: A total of 240 autoclaved bovine enamel blocks with microhardness 310.5 ± 42.8 KHN were used. The blocks were randomly divided into 4 groups (n = 60) in accordance with the bacterial model: (A) S. mutans, (B) S. mutans and L. acidophilus, (C) S. mutans and L. casei and (D) S. mutans, L. acidophilus and L. casei. The microorganisms were inoculated in a cariogenic solution containing the enamel blocks, which was changed every 48 h. For each group, the blocks were randomly divided into 12 subgroups (n = 5) according to the caries induction period (4 to 44 days). Results: The superficial microhardness analysis showed statistically lower values ​​ for groups C and D than groups A and B (p<0.05). The integrated loss of subsurface hardness (ΔKHN) was lower for groups A and B compared to groups C and D (p<0.05). Regarding the depth of caries lesion by means of polarized light microscopy, it was observed that group A showed statistically lower values ​​and groups C and D the highest values. Group B showed higher values than group A (p<0.05), justifying the bacteria interaction. The period of 8 days for group B was the most appropriate for the induction of non-cavitated caries lesions. Conclusion: The bacterial model using S. mutans and L. acidophilus was less aggressive and may be used to induce the formation of non-cavitated caries lesions.

ODTP-P27 EFEITO DE PRODUTOS FLUORETADOS SOBRE PARÂMETROS SALIVARES QUE PARTICIPAM DO PROCESSO DE DESMINERALIZAÇÃO E REMINERALIZAÇÃO (DES-RE)

Universidade Cruzeiro do Sul (UNICSUL)

Autores: Godoy JB*, Moitinho RCC, Silva NP, Mamani R, Leite MF, Calle RLM

Effect of fluoride products on salivary parameters involved in the process of demineralization and remineralization (DES-RE)

Objective: To evaluate salivary parameters involved in the process of demineralization and remineralization after application of fluoride varnish NaF 5% and solution for mounth rinse NaF 0.05%. Methodology: The study included 50 young adult volunteers aged between 20 and 30 years of which 25 individuals used the solution NaF 0.05% for mouth rinse and 25 individuals received a fluoride varnish application NaF 5%. The collection of saliva stimulated mechanically with parafilm were performed in 3 stages: before using the product fluoridated (control), immediately and 1 hour after application of the respective product. The salivary parameters evaluated were salivary flow rate, pH, buffer capacity and concentration of calcium and phosphate. The data were submitted to ANOVA and Tukey post-test (p ≤ 0.05). Results: The fluoride rinse with NaF 0.05% stimulated salivary flow rate (33%) and the concentration of calcium (23%) up to one hour after application of the product (p ≤ 0.05). The application of fluoride varnish stimulated salivary buffer capacity in pH ranges considered critical for the demineralization of hydroxyapatite (23%) (pH 5.9 to 5.0) (p ≤ .05). There were no significant differences in other parameters. Conclusion: The use of fluoridated products as a solution 0.05% NaF indicated for daily mouth rinse and varnish NaF 5% stimulates salivary parameters involved in the process DES-RE, as salivary flow rate, buffer capacity and calcium concentration.

ODTP-P28 EFEITO DO ALEITAMENTO MATERNO SOBRE A COMPOSIÇÃO BIOQUÍMICA DA SALIVA DE BEBÊS

Universidade Cruzeiro do Sul (UNICSUL)

Autores: Lima BFA*, Mathias MF, Leite MF, Duarte DA

Effect of breastfeeding on the biochemical composition of the saliva of babies

Objective: The breastfeeding is essential for nutrition and development of the newborn, having great value in improving the immature immune system, due to the maturation of IgA, the main antibody found in breast milk. The aim of the study was to evaluate the effect of breastfeeding on salivary parameters defense babies. Participated 53 children of both genders, aged 4 and 18 months of life. The groups were formed by babies who breastfeed chest (n=25) and infants who are fed only infant formula (n =28). Samples of unstimulated saliva were collected through a gentle suction using a plastic catheter. The parameters assessed were salivary salivary flow, pH, buffer capacity, amylase activity, total protein concentration and immunoglobulin A ( IgA ). Statistical comparisons between groups were made by paired "t Student" (two- tail), with a significance level of 5 %. The results indicated that breastfeeding increases the rate of secretion of IgA in saliva of infants (p=0,02). There were no statistically significant differences between the two groups in other salivary parameters studied. Conclusion: Breastfeeding helps with oral immunity in infants by increasing the secretion of salivary antibodies.

ODTP-P29 EFEITO DO LASER DE CO₂ (ƛ=10,6 µM) E DO DENTIFRÍCIO FLUORETADO NA DESMINERALIZAÇÃO AO REDOR DE BRÁQUETES ORTODÔNTICOS - ESTUDO IN SITU

Faculdade de Odontologia de Piracicaba – UNICAMP

Autores: Rodrigues LP*, Zancopé BR, Parisotto TM, Steiner-Oliveira C, Rodrigues LKA, Tabchoury CPM, Nobre-dos-Santos M

Effect  of  CO₂ laser and fluoride dentifrice on demineralization around orthodontic brackets - an in situ study.

Objective: Verify whether the irradiationof CO₂ laser with an energy density of 20.0J/cm² combined with the use of an orthodontic adhesive could reduce enamel demineralization around orthodontic brackets. Methods: 160 specimens of human enamel were divided into the groups. During two phases of 14 days each, 20 volunteers used a device intra oral palatal containing four specimens of human enamel, which were randomly divided into 4 groups: 1- Adhesive +NonFluorideToothpaste (NFT)(control), 2- CO₂Laser + Adhesive + NFT, 3- Adhesive + Fluoride Toothpaste (FT) and 4- CO₂Laser + Adhesive + FT. Volunteers dripped ont he slabs a 20% sucrose solution eight times a day at predetermined times. After each phase, the biofilm was collected and the fluoride concentration was analyzed. The mineral loss around orthodontic brackets was determined by micro hardness analysis. The results of the fluoride concentration in dried biofilm were analyzed by Lilliefors and Kruskal-Wallis test followed by theStudent Newman-Keuls test (α= 0.05) and the results of the mineral loss were analyzed by Lilliefors test followed by ANOVA.Results: Higher fluoride concentrations in the biofilm were found for groups 3 and 4 than for groups 1 and 2. Conclusion: The adhesive system showed to be effective in reducing demineralization in situ around orthodontic brackets and the presence or absence of CO₂ laser and fluoride tooth paste had no influence on the enamel mineral loss around orthodontic brackets.

ODTP-P30 EFEITO DO LASER DE CO₂ (ƛ=10,6 µM) E DO FLÚOR FOSFATO ACIDULADO NA FORMAÇÃO DE CAF₂ E NA INIBIÇÃO DA PROGRESSÃO DA LESÃO DE CÁRIE DO ESMALTE DENTAL DESMINERALIZADO – ESTUDO IN VITRO

Faculdade de Odontologia de Piracicaba – UNICAMP

Autores: Nobre-dos-Santos M*,Zancopé BR, Rodrigues LP, Parizotto TM, Steiner-Oliveira C, Rodrigues LKA

Effect of CO₂ laser(ƛ=10,6 µm) and acidulated phosphate fluoride on CaF₂ formation and in the inhibition of lesion progression of demineralized dental enamel – In vitro study.

Objective: We investigated if CO₂ laser irradiation with two energy densities combined with acidulated phosphated fluoride gel (APF-gel) enhances the formation of calcium fluoride and reduces the mineral loss of demineralized enamel specimens (DES). Methods: 300 DES were used in this research. 100 DES were divided into 10 groups: control group and in 09 groups CO₂ laser with two energy densities(11,3 J/cm2 ou 20,0 J/cm2) was used before, during or after APF-gel application and CaF₂ was determined in these specimens. Following, 50 specimens submitted to the same treatments were evaluated for CaF₂ formation before and after CaF₂ extraction by scanning electron microscopy microscopy(SEM) analysis. Moreover, 150 specimens were dived into 10 groups, treated in the same way and submitted to a pH cycling. Lesion depth and enamel mineral loss(ΔS) were determined. Results were analised by ANOVA followed by Tukey test. Results: CaF₂ concentration varied from 0,15 (laser 20,0 J/cm²) to 5,87 (Laser 11,3 J/cm²+ during APF application). The mean of ΔS ranged from12.242,9±2.605,0_b(control) to 7.398,5±1.593,0_a (APF). Lesion depth ranged from 138,35 μm_b (control) to 54,40 μm_a (laser 20,0 J/cm² + APF). SEM images showed spherical deposits which morphologically resemble CaF₂. Conclusion: The use of CO₂ laser irradiation at 11.3 J/cm² during APF-gel application enhanced CaF₂ formation. However, regarding inhibition of enamel demineralization, no synergistic effect was found with the combined therapy.

ODTP-P31 ESTUDO RETROSPECTIVO DE BIÓPSIAS ORAIS REALIZADAS EM CRIANÇAS E ADOLESCENTES EM UMA POPULAÇÃO DO MUNICÍPIO DE SOBRAL, BRASIL

UFC - Campus Sobral

Autores: Rocha CT*, Neves BG, Costa FWG, Pereira KMA, Nogueira AS, Turatti E, Alves APNN, Cavalcante RB

A retrospective study of oral biopsies performed in children and adolescents in a population of the municipality of Sobral, Brazil

Objective: The aim of this study was to describe the profile of oral biopsies performed in a Brazilian pediatric population. Methods: It was conducted a retrospective study of the reports of pediatric oral biopsies Service of Stomatology, School of Dentistry, Federal University of Ceará-Sobral Faculty (2007-2013). Data collected included age, gender, diagnosis and anatomical site. Results: It were obtained 157 cases coming from 148 individuals (female, n = 96, male n = 60), mean age 13.1 ± 4.1 years. There was an increase in the number of injuries by age group: 0-6 years, n = 17 (11.0 %), 7-12 years, n = 40 (26.0 %), 13-18 years, n = 97 (63.0 %). Three children did not have their age identified. Mucocele (n = 46, 29.3 %) was the most prevalent lesion clinicopathological followed clinically by dentigerous cyst (n = 12, 7.6 %), and pyogenic granuloma (n = 11, 7.6 %), and histopathologically by the cyst roots (n = 10, 6.4 %) and dentigerous (n = 9 , 5.7 %). Statistically significant difference between the provisional diagnoses (diagnostic hypotheses) and histopathology (p < 0.001). The main anatomical sites were lower lip (n = 48, 30.6 %), jaw bone (n = 32 , 20.4 %) and mandible (n = 28 , 17.8 %). Significant difference between location and histological diagnosis (p < 0.001): mucocele (lower lip); dentigerous cyst, radicular cyst and follicle (maxilla and mandible) . Conclusions: Oral lesions prevailed in female patients and increased with age, especially mucocele, dentigerous cyst and radicular cyst, and the major anatomical sites were lower lip, maxilla and mandible.