Navegando por Palavras-chave "Bite Force"
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- ItemAcesso aberto (Open Access)Análise da força de mordida nos diferentes tipos de maloclusões dentárias, segundo Angle(CEFAC Saúde e Educação, 2014-10-01) Araújo, Sarah Cueva Candido Soares de; Vieira, Marilena Manno [UNIFESP]; Gasparotto, Christiane Aparecida; Bommarito, Silvana [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); SOEBRAS - FUNORTEPURPOSE:to analyze the maximum bite force in individuals with normal occlusion and types of Angle’s malocclusion; to observe the frequency of occurrence of each type of occlusion; to analyze whether there is any difference between measurements of force and relate bite force to body mass index (BMI). METHODS: the sample was composed of 100 students of the Speech and Language Pathology School at UNIFESP, with ages between 17 and 25 years. Individuals with ATM disfunctions, mental or genetic disorders and those who had already undergone miotherapy were excluded. Each individual went through an evaluation, which consisted of: 1) gathering personal information, personal diet, chewing preference, weight and height. 2) evaluation of dental occlusion as normal occlusion or malocclusion Class I, Class II 1st division, Class II 2nd division or Class III. 3) evaluation of bite force, performed by using a digital dynamometer. Different techniques were used for statistical analysis. RESULTS:individuals with normal occlusion were those who had the greatest bite force, followed by Classes I, II 1st and 2nd divisions and Class III, respectively; there was higher occurrence of malocclusion Class I, followed by normal occlusion, Class II 1st and 2nd divisions and Class III; There was an increase of the average force between the first and third measurements for both sides; there was no correlation between bite force and BMI.CONCLUSION:the type of occlusion influenced bite force, the greatest force being obtained on the third measurement; there was no relation between BMI and bite force.
- ItemAcesso aberto (Open Access)Análise da mastigação em indivíduos que apresentam mordida cruzada unilateral na faixa-etária de 07 a 12 anos(CEFAC Saúde e Educação, 2007-09-01) Pastana, Silvana Da Gama; Costa, Simone De Menezes; Chiappetta, Ana Lúcia de Magalhães Leal [UNIFESP]; Prefeitura do Rio de Janeiro; Universidade do Estado do Rio de Janeiro; CEFAC - Saúde e Educação; Hospital Estadual Adão Pereira Nunes; Universidade Federal de São Paulo (UNIFESP)PURPOSE: to analyze the function of chewing, related to the posterior unilateral crossbite in children aged between 07 to 12 years. METHODS: 10 samples of both genders with posterior unilateral crossbite, with no orthodontic treatment history. During the speech language pathology evaluation the examined items were: food cutting, side of the chewing, rhythm, lips position, food escape, jaw movement, exaggerated participation of the perioral muscles, food accumulation in the vestibule of the mouth, position and size of the alimentary cake. RESULTS: from the 10 evaluated samples, 80% demonstrated unilateral chewing of the same side of the posterior unilateral crossbite and 20% bilateral chewing. From the 08 analyzed samples, the results were: previous cut, without escape of food and rotatory movements 100%; slow rhythm 50% and fast rhythm 50%; closed lips 75%; exaggerated participation of perioral muscles 62,5%; without accumulation of food 87,5%; alimentary cake cente-red 62,5%; small cale size 62,5%. CONCLUSION: from the evaluated cases, it was observed that 80% confirmed the relation between unilateral chewing and unilateral posterior crossbite, corroborating the literature s reporting. In the chewing, no any alterations related to the posterior unilateral crossbite and unilateral chewing have been noted.
- ItemSomente MetadadadosDescriptive analysis of the masticatory and salivary functions and gustatory sensitivity in healthy children(Hindawi Publishing Corp, 2016) Salome Marquezin, Maria Carolina; Pedroni-Pereira, Aline; Araujo, Darlle Santos; Rosar, Joao Vicente; Barbosa, Tais S.; Castelo, Paula Midori [UNIFESP]Objective: The objective of this study is to better understand salivary and masticatory characteristics, this study evaluated the relationship among salivary parameters, bite force (BF), masticatory performance (MP) and gustatory sensitivity in healthy children. The secondary outcome was to evaluate possible gender differences.Materials and methods: One hundred and sixteen eutrophic subjects aged 7-11 years old were evaluated, caries-free and with no definite need of orthodontic treatment. Salivary flow rate and pH, total protein (TP), alpha-amylase (AMY), calcium (CA) and phosphate (PHO) concentrations were determined in stimulated (SS) and unstimulated saliva (US). BF and MP were evaluated using digital gnathodynamometer and fractional sieving method, respectively. Gustatory sensitivity was determined by detecting the four primary tastes (sweet, salty, sour and bitter) in three different concentrations. Data were evaluated using descriptive statistics, Mann-Whitney/t-test, Spearman correlation and multiple regression analysis, considering =0.05.Results: Significant positive correlation between taste and age was observed. CA and PHO concentrations correlated negatively with salivary flow and pH
- ItemSomente MetadadadosEvaluation of Changes in Muscle Thickness, Bite Force and Facial Asymmetry during Early Treatment of Functional Posterior Crossbite(Journal Pedodontics Inc, 2010-06-01) Castelo, Paula Midori [UNIFESP]; Gaviao, Maria Beatriz Duarte; Pereira, Luciano Jose; Bonjardim, Leonardo Rigoldi; Universidade Federal de São Paulo (UNIFESP); Universidade Estadual de Campinas (UNICAMP); Universidade Federal de Lavras (UFLA); Univ Fed SergipeObjective: To determine morphological and functional effects on masticatory system of early treatment of functional posterior crossbite in young children. Study design: 23 children were divided into two groups: deciduous (DecG, n=11) and early mixed dentition (MixG, n=12), which received slow maxillary expansion. Maximal bite force, ultrasonographic masticatory muscle thickness and facial asymmetry were evaluated in three stages: before the start of treatment (s1), after three months of retention (s2), and after three months of observation (s3). The results were analyzed by Mann-Whitney U-test, correlation test, repeated measures ANOVA and backward stepwise multiple regression. Results. Bite force and temporalis thickness increased from s1 to s2 and s3 in both groups (p<0.05). Body mass index (BMI) increased significantly from s1 to s3 only in the MixG, but the masseter thickness did not differ among the stages. The correlation between the angle of the eye and the angle of the mouth in relation to the mid-sagital plane increased from silo s3. Masticatory muscle thickness contributed significantly to bite force magnitude in all stages, whereas age and BMI showed no significant contribution to its variation. Conclusion: Bite force and temporalis muscle thickness increased significantly in children oiler early treatment of functional crossbite.
- ItemAcesso aberto (Open Access)Relação entre força máxima de mordida e ângulo goníaco na mordida cruzada(Universidade Federal de São Paulo (UNIFESP), 2017-02-24) Said, Angelica Da Veiga [UNIFESP]; Monteiro, Silvana Bommarito [UNIFESP]; http://lattes.cnpq.br/5606969949793059; http://lattes.cnpq.br/4999433899060641; Universidade Federal de São Paulo (UNIFESP)Objective: To analyze the maximum bite force in unilateral posterior cross-bite and the correlation between maximum bite force and gonial angle in adults. Method: A total of 160 individuals, 88 males and 72 females, aged between 18 and 39 years old, were divided into two groups: without cross-bite, composed of 130 individuals (75 males and 55 females) and with cross-bite, consisting of 30 individuals (13 males and 17 females). The method consisted of the steps of anamnesis, evaluation of the occlusion, recording of the maximum bite force and registration of the gonial angle. The occlusion evaluation was performed to classify the occlusion in without or with cross-bite. The maximum bite force was recorded with a DDK / M model digital dynamometer (Kratos, São Paulo, Brazil) and in all subjects, three measurements were performed with the device positioned on the occlusal surface of the first molars, alternately, and with one minute interval between each series, and the averages are then calculated. The registration of the gonial angle was obtained with a goniometer measuring the right and left sides. The data collected were statistically analyzed by ANOVA, paired T-Student and Pearson's correlation, considering a significance level of 0.05 (5%). Results: There was greater maximum bite force in males, independently of the group and side; in the without cross-bite group there was difference of the maximum bite force between sides only in females; between groups, there was greater maximum bite force in males in the without cross-bite group. The correlations found between maximum bite force and gonial angle in both groups were negative or inversely proportional. Conclusions: The cross-bite group had a lower maximum bite force in males and the correlation between maximum bite force and gonial angle was negative, indicating that greater the maximum bite force, lower the gonial angle or vice versa. The direct measurement was shown as a good clinical option for recording the gonial angle.