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1.
Swiss Dent J ; 130(9): 668-675, 2020 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-32869964

RESUMO

Assessment of mandibular mobility is an integral part of many dental examinations. Yet, information on the maximum range of mandibular motion in large groups of patients with temporomandibular disorders (TMDs) is limited. Therefore, we analyzed the corresponding data of 500 TMD patients who had presented at the University Center for Dental Medicine Basel. All measurements had been carried out by one examiner. The average maximal values for unassisted jaw opening, protrusion, and movement to the right and left were 49.3 mm (SD: 9.1), 8.8 mm (SD: 2.3), 9.4 mm (SD: 2.5), and 11.8 mm (SD: 3.1), respectively. Since activities such as chewing, talking, oral hygiene or even yawning require neither very wide openings nor extensive lateral or protrusive excursions, we would like to propose the following general threshold values for impaired mandibular function: maximum interincisal distance < 30 mm; maximum laterotrusion as well as maximum protrusion < 5 mm. These cut-off values, which are lower than those traditionally suggested in the dental literature, appear to be sufficient to carry out functionally undisturbed mandibular movements. By lowering the traditionally higher thresholds, the spectrum of anatomical and functional variability is increased. In this way, patients and non-patients may be protected against medicalization, overdiagnosis, and overtreatment.


Assuntos
Transtornos da Articulação Temporomandibular , Humanos , Mandíbula , Mastigação , Movimento , Amplitude de Movimento Articular , Articulação Temporomandibular
2.
Indian J Dent Res ; 31(3): 363-367, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32769268

RESUMO

Aim: This study describes the relationship of the chronophysiological organization of the lateral teeth occlusion and the parameters of the chewing unit of the human dentofacial system (bioelectric potentials, the force of the masticatory muscles, masticatory efficiency) which should be considered in modeling of prosthesis occlusal surfaces. Materials and Methods: Examination of 200 respondents with a "day" chronotype, with Angle class I bilateral occlusion at the age of 18-35 years was conducted daily for 3 days. From 8.00 to 20.00, every 4 hours, the amplitude of the electromyography, the jaw muscles' force, the masticatory efficiency, the area of the occlusal contacts, and the near-contact zones were determined. Results: The activity of the masticatory muscles increased during the period from 12.00 to 16.00, which coincided with the escalation of the masticatory efficiency and of the occlusal contacts area. The relationship between the occlusal surfaces' relief and masticatory efficiency is described by two types of occlusal surfaces' topography - smoothed and pronounced, differing by the ratio of the areas of the occlusal contacts and the near-contact zones in 0.25- and 1-mm wide. Conclusion: The modeling of the occlusal surface of the permanent prosthetic restorations for patients with the "day" chronotype should be carried out with the area values of occlusal contacts and near-contact zones corresponding to the period of masticatory muscles activity from 12.00 to 16.00 and in accordance with the characteristic type of the occlusal surfaces' relief.


Assuntos
Oclusão Dentária , Má Oclusão de Angle Classe I , Eletromiografia , Humanos , Mastigação , Músculos da Mastigação
3.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi ; 37(4): 614-621, 2020 Aug 25.
Artigo em Chinês | MEDLINE | ID: mdl-32840078

RESUMO

As a representative part of the oral system and masticatory robot system, the modeling method of the dental model is an important factor influencing the accuracy of the multi-body dynamic model. Taking the right first molars of the masticatory robot as the research object, an equivalent model, point-contact higher kinematic pair composed of v-shaped surface and sphere surface, was proposed. Firstly, the finite element method was used to analyze the occlusal dynamics of the original model in three static contact cases (intrusive contact, centric occlusion, and extrusive contact) and one dynamic chewing case, and the expected bite force was obtained. Secondly, the Hertz contact model was adopted to establish the analytical expression of the bite force of the equivalent model in three static contact cases. The normal vectors and contact stiffness in the expression were designed according to the expected bite force. Finally, the bite force performance of the equivalent model in three static contact cases and one dynamic chewing case was evaluated. The results showed that the equivalent model could achieve the equivalent bite force of 8 expected items in the static contact cases. Meanwhile, the bite force in the early and late stages of the dynamic chewing case coincides well with the original model. In the middle stage, a certain degree of impact is introduced, but it can be weakened by subsequent trajectory planning. The equivalent modeling scheme of the dental model proposed in this paper further improves the accuracy of the dynamic model of the multi-body system. It provides a new idea for the dynamic modeling of other complex human contacts.


Assuntos
Dente Molar , Fenômenos Biomecânicos , Força de Mordida , Humanos , Mastigação
4.
Bull Tokyo Dent Coll ; 61(3): 161-168, 2020 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-32801259

RESUMO

Dental treatment improves the experience of eating by healing illnesses in the oral cavity or through the installation of special devices. However, mastication can often prove difficult for short periods of time after dental treatment, potentially limiting the types of food that can be consumed. Therefore, we proposed a highly nutritious meal strategy for dental outpatients (hereafter, "easy-to-eat meals"). We previously reported patients' subjective assessment of these easy-to-eat meals as determined through a questionnaire survey. The purpose of the present study was to investigate how differences in age affected such assessments. The study participants comprised patients scheduled to undergo dental treatment. They were divided into 2 groups: one of patients aged above and one of those aged below 70 years. All were required to consume provided easy-to-eat meals at the dental hospital directly after treatment and then answer a questionnaire. The questionnaire included items on patient satisfaction with the meals, taste, portion size, convenience, reduction in discomfort, and whether they would consume them again. The format of the questionnaire was a visual analog scale (VAS), ranging from 0 (negative) to 10 (positive). Portion size was to be rated on a scale from 0 ("Not enough") to 10 ("Too much"), with 5 being "Just right". Correlations between the questionnaire items were investigated to determine how they influenced each other. The VAS average for "Reduction in discomfort" was 8.45±1.39 in the non-elderly group and 6.07±2.92 in the elderly group, and the difference was significant (p=0.02); the VAS average for "Taste" was 6.49±2.32 in the non-elderly group and 4.91±0.98 in the elderly group, and the difference was significant (p=0.04). The results of this study suggest that providing such meal plans as nutritional guidance after dental treatment can influence quality of life in elderly patients.


Assuntos
Pacientes Ambulatoriais , Qualidade de Vida , Idoso , Humanos , Mastigação , Refeições , Pessoa de Meia-Idade , Inquéritos e Questionários
5.
J Indian Soc Pedod Prev Dent ; 38(2): 190-199, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32611867

RESUMO

Oral submucous fibrosis (OSMF) is a chronic debilitating irreversible oral potentially malignant disorder affecting any part of the oral cavity. It is usually seen in adults but rarely noticed in children and adolescents. Since the paucity of the cases, there exists a gap of knowledge in the causative habits, root reasons of habit initiation, age of habit initiation, and the common clinical representation of this disorder. The current article aims to bridge this gap by presenting unusual 36 cases of children and adolescents reported at the tertiary care hospital of Vadodara, Gujarat, India, with specific areca nut chewing habit and distinct features of OSMF. Furthermore, the present case series is the first of its kind in the scientific literature with a high number of OSMF cases in children and adolescents.


Assuntos
Fibrose Oral Submucosa , Adolescente , Adulto , Areca , Criança , Hábitos , Humanos , Índia , Mastigação
6.
J Oral Rehabil ; 47(9): 1171-1177, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32613633

RESUMO

OBJECTIVE: The aim of this study was to compare masticatory performance and patient reported eating ability of maxillectomy patients with implant-supported obturators and patients with surgically reconstructed maxillae. METHODS: This cross-sectional study was conducted at the University of Alberta, Edmonton, Canada and at Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands. Eleven surgically reconstructed maxillectomy patients have been included at University of Alberta and nine implant-supported obturator patients at MUMC+. The mixing ability test (MAT) was used to measure masticatory performance. In addition, the oral health related quality of life (OHRQoL) was measured with shortened versions of the oral health impact profile (OHIP) questionnaire. Values of the implant-supported obturator group versus the surgical reconstruction group were compared with independent t-tests in case of normal distribution, otherwise the Mann-Whitney U test was applied. RESULTS: Patients with reconstructed maxillae and patients with implant-supported obturator prostheses had similar mean mixing ability indices (18.20 ± 2.38 resp. 18.66 ± 1.37; P = .614). The seven OHRQoL questions also showed no differences in masticatory ability between the two groups. CONCLUSION: With caution, the results of this study seem to confirm earlier results that implant-supported obturation is a good alternative to surgical reconstruction for all Class II maxillary defects. With both techniques, the masticatory performance is sufficiently restored, with careful planning being highly desirable.


Assuntos
Implantes Dentários , Maxila , Estudos Transversais , Prótese Dentária Fixada por Implante , Humanos , Mastigação , Países Baixos , Obturadores Palatinos , Qualidade de Vida
7.
J Oral Rehabil ; 47(9): 1161-1170, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32621336

RESUMO

BACKGROUND: There is a wide variation of chewing behaviours even in healthy humans. The present study was aimed to clarify how the rheological properties of the bolus during chewing are different among individuals. We also investigated whether the swallowing threshold was consistent among the individuals and whether the difference in the bolus properties at the swallowing affected swallowing movement. METHODS: Twenty-nine healthy volunteers were asked to ingest 8 g of steamed rice. Based on the chewing duration defined by the time until first swallow, participants were asked to chew the food and then either spit it out or swallow it at 50%, 100% and 150% of chewing duration. In seven volunteers, the maximum bite force was measured. RESULTS: The hardness of the bolus gradually decreased throughout recording. Although the chewing duration varied widely, there was a significant negative correlation between time and hardness, regardless of the difference in individual chewing duration. The cohesiveness of the bolus was unchanged at the 100% time point, followed by a slight but significant increase. There was no significant correlation between the chewing duration and adhesiveness of the bolus. Swallowing-related bursts of Supra and Infra EMGs were not related to the chewing duration or bolus properties, and chewing duration did not affect swallowing function. CONCLUSION: The current results suggest that the bolus properties such as the hardness and cohesiveness during chewing are just dependent on the chewing duration and the difference in the bolus properties does not affect the swallowing initiation and movement.


Assuntos
Deglutição , Mastigação , Força de Mordida , Ingestão de Alimentos , Alimentos , Humanos
8.
Anticancer Res ; 40(8): 4719-4727, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32727798

RESUMO

BACKGROUND/AIM: We investigated whether mastication affects microglia, whose activity is thought to be associated with cognition and brain tumor progression. MATERIALS AND METHODS: We kept mice by feeding either a hard or soft diet for 2, 4 or 8 months. After each period, we removed the whole brains and isolated microglia. The total RNA extracted from each brain's microglia was subjected to DNA microarray analysis. RESULTS: Many genes were found to be significantly differentially expressed between hard- and soft-diet-fed mice in each group of the same feeding period. The expression of several genes involved in the regulation of actin cytoskeleton was down-regulated in the soft-diet-fed mice. CONCLUSION: Mastication may affect microglia's roles in cognition as well as their neuroimmune activity through their activity of patrolling the brain.


Assuntos
Mastigação/fisiologia , Microglia/fisiologia , Transcriptoma/fisiologia , Animais , Encéfalo/fisiologia , Masculino , Camundongos , Camundongos Endogâmicos C3H
9.
J Oral Rehabil ; 47(8): 961-966, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32495364

RESUMO

BACKGROUND: Treatment of patients with head and neck cancer can result in disrupted mastication. To measure masticatory performance in people with compromised mastication, the mixing ability test (MAT) was developed. OBJECTIVE: In this study, the reliability of the MAT was evaluated in patients with head and neck cancer and healthy controls. METHODS: Thirty-four patients with head and neck cancer and 42 healthy controls performed the MAT twice on the same day. To assess reliability, the intra-class correlation coefficient (ICC2,1 ), standard error of measurement (SEM), smallest detectable change (SDC) and limits of agreement (LoA) were calculated. RESULTS: A good (ICC = 0.886) and moderate correlation (ICC = 0.525) were found for patients and healthy controls, respectively. Patients had a worse mixing ability (mean = 19.12, SD = 4.56) in comparison with healthy controls (mean = 16.42, SD = 2.04). The SEM was 0.76 in patients and 1.45 in healthy controls, with a SDC of 2.12 and 4.02, respectively. The LoA was -4.46 to 4.42 in patients and -3.65 to 4.59 in healthy controls. CONCLUSION: The MAT has a good reliability in patients with head and neck cancer and a moderate reliability in healthy controls.


Assuntos
Neoplasias de Cabeça e Pescoço , Mastigação , Algoritmos , Humanos , Reprodutibilidade dos Testes
10.
Braz Oral Res ; 34: e059, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32578802

RESUMO

The aim of this study was to evaluate the association of malocclusion, nutritive and non-nutritive sucking habits and dental caries in the masticatory function of preschool children. A cross-sectional study was conducted with a sample of 384 children aged 3-5 years. A single examiner calibrated for oral clinical examinations performed all the evaluations (kappa > 0.82). Presence of malocclusion was recorded using Foster and Hamilton criteria. The number of masticatory units and of posterior teeth cavitated by dental caries was also recorded. The parents answered a questionnaire in the form of an interview, addressing questions about the child's nutritive and non-nutritive sucking habits. The masticatory function was evaluated using Optocal test material, and was based on the median particle size in the masticatory performance, on the swallowing threshold, and on the number of masticatory cycles during the swallowing threshold. Data analysis involved simple and multiple linear regression analyses, and the confidence level adopted was 95%. The sample consisted of 206 children in the malocclusion group and 178 in the non-malocclusion group. In the multiple regression analysis, the masticatory performance was associated with age (p = 0.025), bottle feeding (p = 0.004), presence of malocclusion (p = 0.048) and number of cavitated posterior teeth (p = 0.030). The swallowing threshold was associated with age (p = 0.025), bottle feeding (p = 0.001) and posterior malocclusion (p = 0.017). The number of masticatory cycles during the swallowing threshold was associated with the number of cavitated posterior teeth (p = 0.001). In conclusion, posterior malocclusion, bottle feeding and dental caries may interfere in the masticatory function of preschool children.


Assuntos
Deglutição/fisiologia , Cárie Dentária/fisiopatologia , Má Oclusão/fisiopatologia , Mastigação/fisiologia , Comportamento de Sucção/fisiologia , Alimentação Artificial , Aleitamento Materno , Pré-Escolar , Estudos Transversais , Feminino , Sucção de Dedo , Humanos , Modelos Lineares , Masculino , Tamanho da Partícula , Valores de Referência , Fatores Sexuais , Estatísticas não Paramétricas
11.
Medicine (Baltimore) ; 99(23): e20653, 2020 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-32502052

RESUMO

Currently, a few of studies revealed that there is an association between mastication and cognitive impairment. There is no study of Korean adult representative samples in relation to mastication and cognitive decline. This study was to investigate the relationship between mastication and mild cognitive impairment in Korean adults.A population-based cross-sectional study was conducted in which a total of 7029 subjects (2987 men and 4042 women) over 45 years old were surveyed from the Korea Longitudinal Study on Aging (KLoSA), Round 5th survey. Logistic regression analysis was performed for the study data controlling for confounding factors such as age, gender, education, income, smoking, drinking, exercise, wearing denture, and the number of chronic diseases.Decreased chewing function is associated with mild cognitive impairment (odds ratio [OR] = 3.24, 95% confidence interval [CI] = 2.67-3.93) after controlling for confounding variables. In the participants who did not wear dentures, the reduction of chewing function was strongly correlated with mild cognitive impairment (OR = 3.97, 95% CI = 3.11-5.08).Mastication was associated with mild cognitive impairment. To prevent cognitive decline, health specialists should pay more attention to the decline of the mastication in people without dentures.


Assuntos
Disfunção Cognitiva/epidemiologia , Mastigação/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Dentaduras/estatística & dados numéricos , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , República da Coreia
12.
J Oral Rehabil ; 47(9): 1103-1109, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32589302

RESUMO

Chewing exercises have been applied in clinical settings to improve the occlusal force and function of the masseter muscle in elderly individuals. However, the clinical relevance and effects of chewing exercises are unclear. This study aimed to investigate the effects of bilateral chewing exercises on the occlusal force and masseter muscle thickness in community-dwelling Koreans aged 65 years. Forty community-dwelling healthy elderly individuals were enrolled in this study. They were assigned to the experimental or the control group. The experimental group performed chewing exercises using medical equipment developed to facilitate such exercises. The chewing exercises were divided into isometric and isotonic types and were performed for 20 min/d, 5 days/wk, for 6 weeks. The control group did not perform any chewing exercises. The outcome measures were occlusal force and masseter muscle thickness, which were evaluated using an occlusometer and ultrasound device, respectively. A paired t test and an independent t test were used to evaluate the training effects. Within-group comparisons showed that occlusal force and masseter muscle thickness improved significantly in the experimental group (P < .001 for both), while the control group showed no significant improvements (P = .098 and .130). Between-group comparisons showed that the experimental group had a greater increase in occlusal force and masseter muscle thickness (P < .05 for both) compared to the control group. These results suggest that chewing exercises are effective in improving occlusal force and masseter muscle thickness in healthy elderly individuals.


Assuntos
Força de Mordida , Terapia por Exercício , Músculo Masseter , Mastigação , Idoso , Eletromiografia , Humanos , Vida Independente , República da Coreia
13.
J Oral Rehabil ; 47(9): 1142-1149, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32598496

RESUMO

BACKGROUND: Although many studies have been conducted on the relationship between masticatory performance and nutrient ingestion in the elderly, few large-scale studies have been carried out using relatively young individuals. OBJECTIVES: The objective of this study was to clarify the association between the masticatory performance evaluated by the gummy-jelly test, not by visual examination, and nutrient ingestion state based on the brief self-administered diet history questionnaire (BDHQ). METHODS: This was a cross-sectional survey of 540 male workers. Somatometry, blood pressure measurement, blood test and medical interview were performed as a periodic health check-up. In the dental check-up, an oral examination, gummy-jelly test (glucosensor) and survey of ingested food and nutrients using BDHQ were performed. The participants were classified into two groups with low and normal values of masticatory performance. Participants with a score on the gummy-jelly test below 150 mg/dL or 150 mg/dL or higher were included in the low and normal groups, respectively. RESULTS: Two hundred and forty-eight participants (45.8%) had low masticatory performance, and 292 (53.2%) had normal masticatory performance. The intakes of some minerals and vitamins, such as calcium, vitamin D, vitamin B2 , small fish with bones and non-oily fish, were significantly lower in the low masticatory group than in the normal group. In contrast, the intake of sugar for coffee and tea and that of chicken were significantly higher in the low masticatory group than in the normal group. CONCLUSION: This study suggested that low masticatory performance can affect nutrient intake, which may cause non-communicable diseases.


Assuntos
Alimentos , Mastigação , Idoso , Estudos Transversais , Humanos , Japão , Masculino , Nutrientes
14.
PLoS One ; 15(6): e0234826, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32542033

RESUMO

Feeding practice in herbivorous mammals can impact their dental wear, due to excessive or irregular abrasion. Previous studies indicated that browsing species display more wear when kept in zoos compared to natural habitats. Comparable analyses in tapirs do not exist, as their dental anatomy and chewing kinematics are assumed to prevent the use of macroscopic wear proxies such as mesowear. We aimed at describing tapir chewing, dental anatomy and wear, to develop a system allowing comparison of free-ranging and captive specimens even in the absence of known age. Video analyses suggest that in contrast to other perissodactyls, tapirs have an orthal (and no lateral) chewing movement. Analysing cheek teeth from 74 museum specimens, we quantified dental anatomy, determined the sequence of dental wear along the tooth row, and established several morphometric measures of wear. In doing so, we showcase that tapir maxillary teeth distinctively change their morphology during wear, developing a height differential between less worn buccal and more worn lingual cusps, and that quantitative wear corresponds to the eruption sequence. We demonstrate that mesowear scoring shows a stable signal during initial wear stages but results in a rather high mesowear score compared to other browsing herbivores. Zoo specimens had lesser or equal mesowear scores as specimens from the wild; additionally, for the same level of third molar wear, premolars and other molars of zoo specimens showed similar or less wear compared specimens from the wild. While this might be due to the traditional use of non-roughage diet items in zoo tapirs, these results indicate that in contrast to the situation in other browsers, excessive tooth wear appears to be no relevant concern in ex situ tapir management.


Assuntos
Mastigação , Perissodáctilos/anatomia & histologia , Perissodáctilos/fisiologia , Dente/anatomia & histologia , Dente/fisiologia , Animais , Fenômenos Biomecânicos
15.
Zhongguo Dang Dai Er Ke Za Zhi ; 22(6): 567-572, 2020 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-32571453

RESUMO

OBJECTIVE: To study the effect of functional chewing training (FuCT) on masticatory function, the severity of tongue thrust, and the severity and frequency of drooling in children with cerebral palsy. METHODS: A prospective study was performed for 48 children who were diagnosed with oral motor dysfunction from January 2019 to January 2020, and they were randomly divided into an FuCT group and an oral motor training group, with 24 children in each group. Both groups received FuCT or oral motor training for 12 weeks, and then they were evaluated in terms of the changes in the masticatory function, the severity of tongue thrust, and the severity and frequency of drooling. RESULTS: There were no significant differences between the two groups in the masticatory function, the severity of tongue thrust, and the severity and frequency of drooling before treatment (P>0.05). After the 12-week training, the FuCT group showed significant improvements in the masticatory function and the severity of tongue thrust and drooling (P<0.05), but with no improvement in the frequency of drooling (P>0.05), while the oral motor training group had no improvements in the masticatory function, the severity of tongue thrust, and the severity and frequency of drooling (P>0.05). After the 12-week training, the FuCT group had more significantly improvements in the severity of tongue thrust and the severity and frequency of drooling than the oral motor training group (P<0.05). CONCLUSIONS: FuCT can effectively improve the masticatory function, the severity of tongue thrust, and the severity and frequency of drooling in children with cerebral palsy.


Assuntos
Paralisia Cerebral , Sialorreia , Criança , Humanos , Mastigação , Estudos Prospectivos
16.
Gerodontology ; 37(3): 233-243, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32491236

RESUMO

OBJECTIVES: To examine the McGill Denture Satisfaction Questionnaire (MDSQ) in terms of dimensionality, item reduction and construct validity in a binational sample of complete denture wearers. MATERIALS AND METHODS: We conducted secondary analyses of baseline data from two studies on implant-retained overdentures: a quasi-experimental study in the United States (n = 145) and a randomised trial in Brazil (n = 120). All participants wore upper/lower dentures and responded at baseline to the MDSQ items concerning their original mandibular dentures. A putative model of the MDSQ items resulted in two question subsets: (a) overall satisfaction, retention/stability, aesthetics, cleaning, speech and comfort, plus general chewing ability; (b) mastication of specific foods. Analyses focused on the internal consistency of each subset and possible item reduction, using Cronbach's alpha (Cα), inter-item correlation and exploratory factor analysis (EFA). RESULTS: The 1st subset showed high inter-item correlation for most question combinations and no redundancy (r ≤ .8). An item on cleaning had low correlation, but its removal does not increase internal consistency (Cα ≥ .83). Results were similar for both studies, with EFA showing a single significant factor (namely "overall satisfaction, lower denture") able to explain nearly 54% of the variance. The 2nd subset also shows strong internal consistency (Cα ≥ .95) and inter-item correlation, with a single factor representing 65% of the variation. CONCLUSIONS: This study discloses the reliability and construct validity of the MDSQ for patient-centred evaluation of complete dental prostheses in the edentulous mandible. Findings also support the use of both "overall satisfaction" and "masticatory ability" as summary scores, for improved outcome assessment.


Assuntos
Prótese Dentária Fixada por Implante , Prótese Total , Satisfação Pessoal , Brasil , Retenção de Dentadura , Prótese Total Inferior , Revestimento de Dentadura , Estética Dentária , Análise Fatorial , Humanos , Mastigação , Satisfação do Paciente , Reprodutibilidade dos Testes , Inquéritos e Questionários
17.
Stomatologiia (Mosk) ; 99(2): 61-65, 2020.
Artigo em Russo | MEDLINE | ID: mdl-32441078

RESUMO

The aim of the study was to analyze the effectiveness of elastocorrective therapy in the complex treatment of patients with musculo-articular dysfunction of TMJ. Patients (n=237) underwent a comprehensive examination, including: 1) analysis of control and diagnostic plaster models of the jaws; 2) clinical examination; 3) X-ray examination: panoramic X-ray and TRG in lateral projection, computed tomography (CT) of the temporomandibular joint or X-ray zonography of the temporomandibular joint, and magnetic resonance tomography (MRI) of the temporomandibular joint, 4) electromyography of the chewing muscles, 5) T-Scan occlusion computer analysis; 6) stabilometry. After clinical, X-ray examination and data analysis of functional research methods, an algorithm for diagnostic and therapeutic measures was developed. All patients were prescribed the use of elastocorrector: at night during sleep and during the day for 1.5-2 hours. As a result of the use of elastocorrector in patients with muscle-articular dysfunction of the TMJ the position of the mandible was normalized and the spatial ratio of TMJ elements was optimized, the masticatory muscles function and bioelectric activity was normalized and the overload of muscles of mastication during functional movements is eliminated. «Elastocorrector¼ appliance can be used in patients with TMJ musculo-articular dysfunction both for orthodontic treatment (to eliminate chewing muscle hypertonus, compression of intra-articular structures, premature occlusive contacts) and to prepare for further treatment (orthopedic, therapeutic, etc.).


Assuntos
Transtornos da Articulação Temporomandibular , Síndrome da Disfunção da Articulação Temporomandibular , Humanos , Mastigação , Músculos da Mastigação , Articulação Temporomandibular
18.
Stomatologiia (Mosk) ; 99(2): 110-113, 2020.
Artigo em Russo | MEDLINE | ID: mdl-32441085

RESUMO

This article provides the current data of the modern literature on the question of the biocompatibility of dental materials, their influence on the local immune homeostasis of the oral cavity; influence of the method of transmission of masticatory load on the tissues and organs of the oral cavity. Thus, when installing the seal, the choice of material, the localization of carious lesions, and when prosthetics - the choice of material of the prosthetic structure and the method of transfer of chewing load is important. It should be understood that the reaction of the mucous membrane can be not only in the area of direct contact with the dental material, but also appear in remote areas of the oral mucosa.


Assuntos
Cárie Dentária , Materiais Dentários , Humanos , Mastigação , Mucosa Bucal
19.
Epidemiol Psychiatr Sci ; 29: e125, 2020 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-32370818

RESUMO

AIMS: More than one-half of betel-quid (BQ) chewers have betel-quid use disorder (BUD). However, no medication has been approved. We performed a randomised clinical trial to test the efficacy of taking escitalopram and moclobemide antidepressants on betel-quid chewing cessation (BQ-CC) treatment. METHODS: We enrolled 111 eligible male BUD patients. They were double-blinded, placebo-controlled and randomised into three treatment groups: escitalopram 10 mg/tab daily, moclobemide 150 mg/tab daily and placebo. Patients were followed-up every 2 weeks and the length of the trial was 8 weeks. The primary outcome was BQ-CC, defined as BUD patients who continuously stopped BQ use for ⩾6 weeks. The secondary outcomes were the frequency and amount of BQ intake, and two psychological rating scales. Several clinical adverse effects were measured during the 8-week treatment. RESULTS: Intention-to-treat analysis shows that after 8 weeks, two (5.4%), 13 (34.2%) and 12 (33.3%) of BUD patients continuously quit BQ chewing for ⩾6 weeks among placebo, escitalopram, moclobemide groups, respectively. The adjusted proportion ratio of BQ-CC was 6.3 (95% CI 1.5-26.1) and 6.8 (95% CI 1.6-28.0) for BUD patients who used escitalopram and moclobemide, respectively, as compared with those who used placebo. BUD patients with escitalopram and moclobemide treatments both exhibited a significantly lower frequency and amount of BQ intake at the 8th week than those with placebo. CONCLUSIONS: Prescribing a fixed dose of moclobemide and escitalopram to BUD patients over 8 weeks demonstrated treatment benefits to BQ-CC. Given a relatively small sample, this study provides preliminary evidence and requires replication in larger trials.


Assuntos
Antidepressivos/uso terapêutico , Areca , Citalopram/uso terapêutico , Mastigação , Moclobemida/uso terapêutico , Transtornos Relacionados ao Uso de Substâncias/tratamento farmacológico , Adolescente , Adulto , Idoso , Areca/efeitos adversos , Grupo com Ancestrais do Continente Asiático , Método Duplo-Cego , Humanos , Análise de Intenção de Tratamento , Masculino , Pessoa de Meia-Idade , Transtornos Relacionados ao Uso de Substâncias/etnologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Resultado do Tratamento
20.
PLoS One ; 15(5): e0232712, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32384102

RESUMO

BACKGROUND: The use of excessive caffeine and consumption of alcohol, cigarette, and khat during pregnancy can result in adverse health effects on the fetus. The World Health Organization (WHO) recommends a daily caffeine intake not exceeding 300 mg. Likewise, pregnant women are recommended to avoid alcohol, khat and tobacco use. However, the prevalence's of the use of substances among pregnant women were not well studied in developing countries such as Ethiopia. Therefore, the study aimed to estimate the prevalence of caffeine and alcohol consumption, khat chewing, and tobacco use during pregnancy and identify key factors associated with excess caffeine consumption. METHODS: We conducted a community based cross-sectional study and used a random sampling technique to recruit 352 pregnant women. We adapted a questionnaire from Caffeine Consumption Questionnaire-Revised (CCQ-R), Alcohol Use Disorder Identification Test (AUDIT), Global Adult Tobacco Survey (GATS), and Ethiopian Demographic Health Survey 2016 for caffeine, alcohol consumption, tobacco use, and khat chewing assessment, respectively. We conducted non-consecutive two days 24-hour recall to determine the habitual intake of caffeine from caffeinated beverages and foods. Prevalence with 95% confidence interval was estimated for excess caffeine intake per day, alcohol consumption, khat chewing, and passive tobacco smoking. We ran a multivariable binary logistic regression model to identify factors associated with excess caffeine intake. RESULTS: Almost all pregnant women (98.2%) consumed caffeine as estimated using the 2 days 24-hour average. The median daily caffeine intake was 170.5 mg and ranged from 0.00 mg to 549.8 mg per day. In addition, 17.6% (95% CI: 13.9%, 22.0%) of them had a daily caffeine consumption of 300 mg and above exceeding the WHO recommended daily caffeine intake during pregnancy. The prevalence of alcohol consumption and Khat chewing were 10.0% (95% CI: 7.2%, 13.7%) and 35.8% (95% CI: 30.8, 41.0%) respectively. None of the pregnant women were active tobacco smokers. However, 23.2% (95% CI: 19.0, 28.0%) were passive tobacco smokers. We found that pregnant women in the richest wealth quintile (AOR = 3.66; 95% CI: 1.13, 11.88), and the first trimester of pregnancy (AOR = 4.04; 95% CI: 1.26, 13.05) had higher odds of consuming excessive caffeine. CONCLUSIONS: The study showed a considerable magnitude of substance use among pregnant women in the study area. Given this findings, we recommend, programs and services focusing on pregnant women to consider addressing substance use.


Assuntos
Cafeína/efeitos adversos , Catha/efeitos adversos , Uso de Tabaco/epidemiologia , Adolescente , Adulto , Consumo de Bebidas Alcoólicas/epidemiologia , Etiópia/epidemiologia , Feminino , Humanos , Modelos Logísticos , Mastigação , Análise Multivariada , Gravidez , Prevalência , Fatores de Risco , Fumar/efeitos adversos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto Jovem
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