Esquema oclusal em prótese total / Occlusal scheme in complete dentures

O objetivo foi revisar a literatura e discutir os conceitos oclusais em reabilitações orais com próteses totais, enfatizando as vantagens e as necessidades de cada esquema oclusal. Realizou-se uma busca nas bases de dados PubMed, SciELO, Google Scholar e em li-vros didáticos com as palavras-chave "Oclusão Dentária", "Oclusão Dentária Balanceada", "Orientação de Canino", "Planejamento de Dentadura", "Planejamento de Prótese Dentá-ria" e "Prótese Total" e com os operadores booleanos AND (E), OR (OU), NOT (MENOS). Dentro dos esquemas oclusais disponíveis para o planejamento protético, a oclusão balan-ceada bilateral (OBB) e a oclusão guiada pelo canino (OGC) foram as mais estudadas e discutidas na desoclusão de próteses totais. Os estudos indicam que o tipo de oclusão pode interferir na atividade muscular do sistema estomatognático, na eficiência mastigatória, na reabsorção óssea, na retenção e estabilidade das próteses removíveis e na satisfação do pa-ciente. Na literatura examinada, foi perceptível a recomendação da OGC como o esquema oclusal de preferência no planejamento das próteses totais, pois os resultados dos estudos indicam menor atividade muscular durante a mastigação, melhor retenção e estabilidade da prótese total. A OGC é o esquema oclusal mais simples e fácil de ser obtido comparada à OBB, beneficia a fonética, é esteticamente preferida pelos pacientes e, em termos de qua-lidade de vida, autopercepção da força mastigatória e oclusal, tem se mostrado satisfatória. Conclui-se que a OGC pode ser recomendada como um esquema oclusal favorável para as reabilitações orais com próteses totais.Descritores: Oclusão Dentária. Oclusão Dentária Balanceada. Orientação de canino. Pró-tese Total. Planejamento de Prótese Dentária.

The aim was to review the literature and discuss the occlusal concepts in oral rehabilitation with complete dentures, emphasizing the advantages and needs of each occlusal scheme. A search was carried out on the databases PubMed, SciELO, Google Scholar and in textbooks, using "Dental Occlusion"; "Dental Occlusion Balanced"; "Canino guidance"; "Denture complete"; and "Denture design" as keywords and the Boolean operators AND, OR, and NOT. Among the occlusal schemes available for prosthetic planning, the bilateral balanced occlusion (BBO) and the canine guided occlusion (CGO) were the most studied and discussed in the disocclusion of complete dentures. Studies indicate the type of occlusion can interfere with muscle activity of the stomatognathic system, masticatory efficiency, bone resorption, retention and stability of removable dentures, and patient satisfaction. In the literature examined, the recommendation of the CGO as the preferred occlusal scheme in the planning of complete dentures was noticeable. The results of the studies indicate less muscle activity during mastication, better retention, and stability of the total denture. It is simpler and easier to obtain this occlusal scheme than the BBO. CGO benefits phonetics; it is aesthetically preferred by patients; and, in terms of quality of life, self-perception of masticatory and occlusal strength, has shown to be satisfactory. We conclude that CGO can be recommended as a favorable occlusal scheme for oral rehabilitation with complete dentures.

Los conceptos de Lawrence F. Andrews: ¿ciencia o dogma? / Lawrence F. Andrews´s concepts: science or dogma?

La obtención de resultados adecuados en un tratamiento ortodóncico hace que el clínico busque en autores y sus publicaciones, información conceptual y técnicas para su práctica clínica (conocimientos y procedimientos). Los avances científicos resultan de conocimientos previos, los cuales, a la luz de nuevos aportes, serán modificados, ampliados o rechazados. En las publicaciones científicas las referencias bibliográficas aportan, o a veces parecen aportar, autoridad a los autores. El objetivo del presente análisis es reflexionar sobre la publicación original del Dr. Andrews: "Las seis claves de la oclusión normal" (AU)

Suitable in an orthodontic treatment results make that the clinical search authors and their publications conceptual information and techniques for your clinical practice (knowledge and procedures). Scientific advancements result from previous knowledge which, in the light of new contributions, will be modified, expanded or rejected. In scientific publications bibliographic references contribute, or sometimes seem to provide authority to the authors. The objective of this analysis is to reflect upon the original publication of Dr. Andrews: "The six keys of normal occlusion" (AU)

Como utilizar o conceito da Zona Neutra para otimizar a Prótese / Using the Neutral Zone concept to improve the lower complete

Este artigo descreve os passos para a utilização da filosofia da Técnica da Zona Neutra. Através dessa filosofia, procura-se localizar uma área, em boca, onde as forças geradas pela língua são neutralizadas pelas forças geradas pelos lábios e bochechas, estabilizando assim a prótese.

This article describes step-by-step the application of the Neutral Zone technique philosophy. It is based upon the concept that for each individual patient, there is within the denture space a specific area where the function of the musculature will not unseat the denture and where forces generated by the tongue are neutralized by the forces generated by the lips and cheeks.

A influência do aleitamento materno no crescimento e desenvolvimento craniofacial, sob o conceito da reabilitação neuroclusal / Influence of breastfeeding on craniofacial growth and development under the concept of neuro oclusion rehabilitation

Os benefícios do aleitamento materno, tanto para a mãe como para o bebê, do ponto de vista imunológico, nutritivo, afetivo, psicológico, entre outros, é um consenso entre os profissionais da saúde. Entretanto, nesta revisão da literatura objetivou-se demonstrar que a amamentação propicia mais do que isso. O aleitamento materno é o fator decisivo e primordial para a correta maturação e crescimento craniofacial em nível ósseo, muscular e funcional, mantendo essas estruturas aptas para exercerem o desenvolvimento da musculatura orofacial, que guiará e estimulará o desenvolvimento das funções fisiológicas, garantindo não somente a sobrevivência, mas também uma melhor qualidade de vida. Assim sendo, procurou-se enfatizar nesta pesquisa o efeito do aleitamento materno sobre o desenvolvimento do sistema estomatognático e seu efeito protetor na prevenção de hábitos de sucção e más-oclusões...

The benefits of breastfeeding for both mother and baby, in view of immunology, nutrition, affection, among others are a consensus among health professionals. However, this literature review aimed to demonstrate that breastfeeding provides more than that. Breastfeeding is the primary and decisive factor for proper maturation and craniofacial growth in bone, muscle and functional level; keeping those structures able to pursue orofacial muscles development, which will guide and stimulate physiological functions, not only ensuring survival, but also a better quality of life. Therefore, this research seeks to emphasize the effect of breastfeeding on the development of stomatognathic system and its protecting effect preventing suction habits and malocclusions under the concept of neuro occlusion rehabilitation...

Comparison of occlusal schemes in complete denture patients

The objective of this study was to compare the masticatory performance with bilateral balanced occlusion and lingualized occlusion in complete denture patients reporting to Armed Forces Institute of Dentistry Pakistan. A randomized control trial study was carried out on sixty edentulous patients. Subjects were divided into two equal groups, A and B by non-probability consecutive sampling method. Group A patients were provided complete dentures with bilaterally balanced occlusion and group B patients were provided complete dentures with lingualized occlusion. Masticatory performance was determined at the 01-month follow-up appointment using Sieving method. Data were analyzed using SPSS 19.0.Results of the study showed that patients with bilateral balance occlusion dentures had superior masticatory performance as compared to ones' with lingualized occlusion. Conclusion made was that bilateral balance occlusal scheme patients were able to masticate properly with ease and comfort and were more comfortable with their prostheses

Extreme root resorption associated with induced tooth movement: A protocol for clinical management

Cases in which teeth have only the cervical third remaining from orthodontically induced external root resorption, cast the following doubts: 1) What care should be taken to keep these teeth in mouth with the least risk possible? 2) What care should be taken with regards to reading of imaging exams, particularly in terms of accurately determining cervical root and bone loss? 3) Why is not endodontic treatment recommended in these cases? The present study aims at shedding light on the aforementioned topics so as to induce new insights into the theme.

Nos casos em que os dentes têm apenas o terço cervical remanescente de uma reabsorção radicular externa induzida ortodonticamente: 1) Quais seriam os cuidados para que permaneçam na boca, com o menor risco possível de perda? 2) Quais seriam os cuidados na interpretação imaginológica desses casos, quanto à determinação precisa da perda radicular e óssea cervical? 3) Por que o tratamento endodôntico não estaria indicado? No presente trabalho, procura-se esclarecer esses pontos e respondendo os questionamentos, para induzir novos insights sobre o assunto.

Masticatory efficiency between balanced and lingualized occlusion in complete denture wearers

The objective of the study was to compare the masticatory efficiency with balanced occlusion and lingualized occlusion in complete denture wearers. The study was conducted in the Department of Prosthodontics, Lahore Medical and Dental College, Lahore. Sixty edentulous patients were included in this study; patients were randomly divided into two groups by using Statistical Package for Social Sciences [SPSS version 10] software. Group A was provided with dentures fabricated with bilateral balanced occlusion and Group B with lingualized occlusion. The patient's masticatory efficiency was assessed after 2 months of denture insertion using the sieving method. Masticatory efficiency was statistically better in patients provided with complete dentures fabricated with lingualized occlusion than dentures with bilateral balanced occlusion. It was concluded patients provided with dentures fabricated with lingualized occlusal scheme were more comfortable with their dentures and were able to chew properly with ease and comfort

Influência do tipo de prótese total dupla na função mastigatória / Influence of denture type in the dual masticatory function

Introdução: A harmonia dos contatos oclusais é um fator bastante significativo na interação das próteses totais ao sistema estomatognático. Não existe um padrão oclusal que incorpore todas as variáveis exigidas pelos pacientes que necessitam de próteses totais removíveis. Objetivo: analisar a função mastigatória entre diferentes tipos de prótese total dupla. Métodos: foram realizados testes de performance mastigatória com alimento teste artificial utilizando o método de tamises. Os participantes (20 indivíduos desdentados totais, sendo quatro do gênero masculino e dezesseis do gênero feminino, com idade entre 44 e 87 anos média de 67,1, todos usuários de prótese total dupla a mais de 5 anos e não mais de 10). As análises estatísticas foram realizadas utilizando o programa Pastversion 2.15, aplicando-se os testes "t" pareado, e Análise de Variância (ANOVA). O valor de significância estatístico foi estabelecido em 5 por cento, ou seja P<0,05. Resultados: os resultados revelaram semelhança entre as três próteses utilizadas no experimento, quando comparado os resultados dos testes mastigatórios de todos os grupos Porem na comparação entre grupos as próteses em uso versus oclusão balanceada bilateral, mostrou melhores resultados dos tamises 1 e 5. Conclusão: os dados obtidos sugerem que o tipo de prótese total dupla, interfere na performance mastigatória, e melhores resultados foram observados com as próteses novas.

Introduction: The harmony of occlusal contacts is a very significant factor in the interaction of the dentures to the stomatognathic system. There is no standard occlusal that incorporates all the variables required by patients in need of removable dentures. Objective: to analyze masticatory function between different types of denture double. Methods: we performed tests of masticatory performance with artificial test food using the method of sieves. Participants (20 edentulous subjects, four males and sixteen females, aged between 44 and 87 year average of 67.1, all denture wearers double to more than 5 years and not more than 10), statistical analyzes were performed using the program Pastversion 2.15, applying the test "t" test and Analysis of Variance (ANOVA). The value of statistical significance was set at 5 per cent, ie P < 0.05. Results: the results revealed similarity between the three prostheses used in the experiment, compared the test scores of all groups masticatory However when comparing groups prostheses in use versus bilateral balanced occlusion showed better results sieves 1 and 5. Conclusion: These data suggest that the type of denture double interfere in masticatory performance and better results were seen with new prostheses.

Oclusión dental: ¿doctrina mecanicista o lógica morfofisiológica? / Dental occlusion: mechanistic doctrine or morphophysiological logical?

Las escuelas de oclusión han creado un constructo mecanicista que busca explicar, bajo un modelo reduccionista y determinista, una dinámica cráneo-cervical y estomatognática compleja. Estos modelos de oclusión le dedican más importancia a la morfología dental y sus geometrías interpretativas que a la morfofisiología estomatognática. La configuración musculo-esquelética cráneo-cervical tiene el poder ganado de influir concomitantemente en la ubicación espacial de la mandíbula e implícitamente en las relaciones interoclusales. La visión actual de la oclusión sigue basándose en observaciones empíricas de un siglo de antigüedad que carecen de soporte apropiado en el marco del nivel de evidencia. En la dimensión funcional los modelos de oclusión conservan los mismos vacíos que existían desde su estructuración en el siglo pasado, particularmente en sus representaciones espaciales estáticas, uniáxicas y anti-dinámicas que desestiman la individualidad de cada sujeto. Cada especialidad puede tener tantas razones como puntos de vista diferentes de "maloclusión" así como formas de tratarla.

Occlusion schools have created a mechanistic construct that seeks to explain, under a reductionist and deterministic model, a craneal-cervical and stomatognathic complex dynamic. These occlusion models dedicate more importance to dental morphology and its interpretative geometries than a stomatognathic morphophysiology. Craneocervical musculoskeletal configuration has the gained power to concomitantly influence the jaw location in the space and implicitly in the interocclusal relations. The current vision of the occlusion is based on empirical observations of almost a century that lack support in the level of evidence framework. In the functional dimension occlusion models maintain the same gaps that existed from its origins since the last century, particularly in its static, uniaxic and anti-dynamic spatial representations that dismiss the individuality of each subject. Each specialty can have as many reasons as different points of view about "malocclusion" as well as techniques to treat it.

Standard of disocclusion in complete dentures supported by implants without free distal ends: analysis by the finite elements method

OBJECTIVE: The occlusal patterns are key requirements for the clinical success of oral rehabilitation supported by implants. This study compared the stresses generated by the disocclusion in the canine guide occlusion (CGO) and bilateral balanced occlusion (BBO) on the implants and metallic infrastructure of a complete Brånemark protocol-type denture modified with the inclusion of one posterior short implant on each side. MATERIAL AND METHODS: A three-dimensional model simulated a mandible with seven titanium implants as pillars, five of them installed between the mental foramen and the two posterior implants, located at the midpoint of the occlusal surface of the first molar. A load of 15 N with an angle of 45° was applied to a tooth or distributed across three teeth to simulate the CGO or BBO, respectively. The commercial program ABAQUS® was used for the model development, before and after the processing of the data. The results were based on a linear static analysis and were used to compare the magnitude of the equivalent stress for each of the simulations. RESULTS: The results showed that the disocclusion in CGO generated higher stresses concentrated on the working side in the region of the short implant. In BBO, the stresses were less intense and more evenly distributed on the prosthesis. The maximum stress found in the simulation of the disocclusion in CGO was two times higher than that found in the simulation of the BBO. The point of maximum stress was located in the neck of the short implant on the working side. CONCLUSIONS: Under the conditions of this study, it was concluded that the BBO pattern was more suitable than CGO for the lower complete denture supported by implants without free distal ends.

Estudo dos contatos oclusais em balanceio quanto a frequência, intensidade e método de avaliação em indivíduos jovens / Study of occlusal contacts in swing as the frequency, intensity and method of assessment in young individuals

Um fator importante no estudo da oclusão refere-se à correta detecção da presença de contatos oclusais no lado de balanceio, sua intensidade e localização. No entanto, a maioria dos estudos que se propuseram a detectar a presença de contatos em balanceio, o fizeram utilizando papel carbono em movimentos conduzidos de máxima intercuspidação até topo-a-topo. O objetivo deste estudo foi estudar a frequência de contatos oclusais detectados no lado de balanceio em 42 indivíduos jovens, com idade média de 26 anos comparando dois métodos: 1- durante o ato mastigatório, utilizando como material de registro uma mistura de verniz cavitário e pó de fosfato de zinco; 2- durante movimentos conduzidos, utilizando como material de registro papel carbono. A frequência de contatos oclusais no lado de balanceio durante o ato mastigatório e utilização de verniz, foi de 100%, sendo que 97 % dos pacientes possuíam contatos bilaterais e 3 % apresentaram apenas contatos unilaterais. A frequência de contatos oclusais no lado de balanceio para os mesmos indivíduos, porém, com a utilização de papel carbono e movimentos conduzidos foi de 76%, sendo que 64% dos pacientes possuíam contatos bilaterais, 12% apresentavam apenas contatos unilaterais e 24% dos pacientes não possuíam contatos. Com relação aos métodos empregados, a mistura de verniz cavitário e pó do fosfato de zinco mostrou um número maior estatisticamente significante de marcações comparado ao papel carbono. De acordo com a metodologia empregada, concluiu-se que o verniz se mostrou mais sensível e eficaz por detectar uma quantidade maior de contatos oclusais comparado ao papel carbono.

An important factor in the study of occlusion refers to the correct detection of the occlusal contacts in the balancing side, intensity and location. However, most studies that proposed itself on detect the presence of balancing contacts used carbon paper led movements in maximal intercuspal to topo a topo. The objective of this study was to evaluate the frequency of occlusal contacts in the balancing side in 42 young people, with a mean age of 26 years through two methods: 1 - during the masticatory act, using as registration material a mixture of cavity varnish and dust zinc phosphate, 2 - during movements performed, using as registration material carbon. And assess if the methods show similar results. The frequency of occlusal contacts on the balancing side during the masticatory act and using of varnish, was 100% and 97% of patients had bilateral contacts and 3% had presented only unilateral contacts. The frequency of occlusal contacts on the balancing side for the same individuals, however, by analyzing method with carbon and led movements was 76% and 64% of patients had bilateral contacts, 12% had only unilateral and 24 contacts % of patients had no relation to contacts. Regarding the method study, it presented statistical differences between the methods, regardless of the side studied. All differences point to a greater number of contacts on the coating method, indicating that in general this method detects more markings than the carbon method. According to the methodology, it concluded that the method was more sensitive varnish that carbon method for being able to detect more numbers occlusal contacts than carbon.

Comportamiento de proporciones divinas e índice de Bolton en mediciones dentales de individuos con maloclusión / Behavior of divine proportions and the Bolton's index in dental measurements of subjects with malocclusion

Los pacientes acuden cada vez con más frecuencia a los servicios estomatológicos en busca de mejorar su aspecto estético. Uno de los métodos más polémicos para el examen de la estética lo constituyen aquellos que se basan en el empleo de la proporción divina, esto motivó a la realización de este trabajo. Se evaluó el comportamiento de las proporciones divinas en mediciones dentales de individuos con maloclusión, mediante el empleo del índice de Bolton. Se realizó un estudio descriptivo transversal en estudiantes del segundo al quinto años de la Facultad de Estomatología de La Habana, Cuba, desde el mes de enero del año 2009 al mes de enero del año 2010. Se emplearon modelos de yeso pertenecientes a 80 estudiantes de 18 a 25 años de edad. Se efectuaron mediciones de los anchos mesiodistales de los dientes y se relacionaron algunas secciones de dientes donde se identificaron los que guardaron relación de proporción divina, según la variable oclusión. Los estudiantes que presentaron maloclusión se estudiaron según la variación del índice de Bolton. En los estudiantes con maloclusión el índice de Bolton que predominó fue a favor de un mayor tamaño de los dientes anteroinferiores, con rangos de proporción divina menores de 1,60(AU)

Patients came more and more frequently to Stomatology services to improve the esthetic feature. Among the more polemic methods for esthetics examination are those based on the use of divine proportion, leading to carrying out of present paper to assess the behavior of divine proportions in the dental measurements of subjects with malocclusion using the Bolton's index. A cross-sectional and descriptive study was conducted in second to fifth years students of the Stomatology Faculty of La Habana from January, 2009 to January, 2010 using the plaster casts in 80 students aged 18 to 25. Measurements of the mesio-distal width of teeth relating some sections of them where were identified those en relation to the divine proportion according the occlusion variable. The students presenting with malocclusion were studied according the variation of Bolton's index. In the students with malocclusion, there was predominance of Bolton's index favoring a great size of anteroinferior teeth with ranks of divine proportion of 1,60(AU)

Ajuste oclusal em implantodontia: aspectos gerais

Este estudo tem objetivo de revisar e analisar assuntos relacionados a um tema fundamental e vital para o sucesso e longevidade de todo trabalho protésico implantodôntico, que é o ajuste oclusal...

Masticatory afficiency in denture wearers with bilateral balanced occlusion and canine guidance

The maintenance of masticatory function is especially important for patients wearing complete dentures due to their limitations. Thus, the bilateral balanced occlusal concept is used to achieve greater masticatory efficiency. However, a critical review of the literature reveals that there is not sufficient scientific evidence to support bilateral balanced occlusion as the most appropriate occlusal concept in complete dentures. Therefore, the aim of this study was to evaluate the masticatory efficiency in complete dentures wearers with bilateral balanced occlusion and canine guidance. A double-blinded controlled crossover clinical trial was conducted. The sample was composed by 24 edentulous patients who wore sets of complete dentures with both occlusal concepts during equal periods of 3 months. Objective data were collected through the masticatory efficiency test performed by the colorimetric method with the beads, in which capsules of a synthetic material enclosing fuchsine-containing granules were used. Subjective data were recorded by patient's ratings of their chewing function. No significant statistical difference was found for masticatory efficiency (p=0.095) between the two occlusal concepts studied. The results suggest that bilateral balanced occlusion does not improve the masticatory efficiency in complete denture wearers.

A manutenção da função mastigatória tem importância especial em pacientes portadores de prótese total devido às limitações inerentes a esse tipo de prótese. Nesse contexto, a oclusão balanceada bilateral (OBB) é empregada com o intuito de obter-se uma maior eficiência mastigatória. Entretanto, analisando-se a literatura criticamente, observa-se que não existem evidências científicas suficientes que suportem a aplicação da OBB como conceito oclusal ideal em prótese total (PT). Assim, o presente trabalho teve o objetivo de verificar se pacientes portadores de PT dupla com OBB apresentam maior eficiência e capacidade mastigatória que aqueles com desoclusão com guia canino (DGC). Com esse intuito, realizou-se um ensaio clínico controlado duplo-cego do tipo crossover. A amostra foi composta de 24 pacientes portadores de prótese total dupla, onde todos fizeram uso de ambos os conceitos oclusais por períodos iguais de 3 meses. A avaliação da eficiência mastigatória foi realizada através do método colorimétrico com o uso de cápsulas mastigatórias. Não se encontrou diferença estatística significativa para a eficiência (p=0,0952) entre os dois conceitos oclusais estudados. Dessa forma, pode-se concluir que usuários de PT dupla com OBB não apresentam maior eficiência mastigatória que aqueles com DGC.

Oclusión en prótesis total / Oclussion in complete dentures

La elección de un tipo de oclusión en la elaboración de prótesis dentales, es un paso crítico en el tratamiento del paciente edéntulo. De ella dependerá la capacidad masticatoria del paciente, su comodidad y la preservación de su hueso alveolar. Son muchos los factores que determinan el establecimiento de una correcta oclusión. No es sólo la colocación de los dientes artificiales paraque encajen unos con otros, sino un procedimiento lógico, estudiado, que logra de alguna manera restaurar la habilidad masticatoria, la estética, fonación y más aún, la preservación de los tejidos de soporte del paciente. De esta forma el odontólogo debe poseer un amplio conocimiento de la fisiología y anatomía humana, de los distintos materiales dentales, de prótesis oral específicamente (Prótesis Total) y tener una habilidad manual, para que el resultado final sea más que satisfactorio.Existen varías teorías de oclusión para pacientes edéntulos, como las que se citarán en el presente trabajo.

Choosing the type of occlusion in the ellaboration of dental protheses, is a critical step in the treatment of the edentulous patient. Specially in order to determine the masticatory capacityof the patient, his comfort and the preservation of his alveolar bone. There are several factors that determine the establishment of a correct occlusion. It is not only the placement of theartificial teeth in order to fit one with the other, but a logical, studied procedure, which manages some how to restore the masticatory skills, the aesthetics, phonetics and even more, the preservation of the supportive tissues of the edentulous patient. In this way the dentist must possess a wide knowledge of the physiology and human anatomy, of the different dental materials, specifically of oral prothesis (Complete Denture) and to have a manual skills, in order to obtain the final result more than satisfactory. There are several theories of occlusion for edentulous patients, such as the one presented.

Biomechanical analysis of the stresses generated by different disocclusion patterns in an implant-supported mandibular complete denture

OBJECTIVES: This study evaluated by three-dimensional finite element analysis the tensions generated by different disocclusion patterns (canine guide and bilateral balanced occlusion) in an implant-supported mandibular complete denture. MATERIAL AND METHODS: A three-dimensional model of implant-supported mandibular complete denture was fabricated according to the Brånemark protocol. A 5-element 3.75 x 13-mm screw-shape dental implant system was modeled for this study. The implants were located in the inter-mental foramen region with 3-mm-high prosthetic components joined by a nickel-chromium framework with 12-mm bilateral cantilever covered by acrylic resin and 12 acrylic denture teeth. SolidWorks® software was used before and after processing the simulations. The mechanical properties of the components were inserted in the model and a 15 N load was established in fixed points, in each one of the simulations. Data were collected in the entire nickel-chromium framework. The results were displayed three-dimensionally as color graphic scales. RESULTS: The canine guide generated greater tensions in the region of the first implant, while the bilateral balanced occlusion generated great tensions in the entire metallic framework. The maximum tension found in the simulation of the bilateral balanced occlusion was 3.22 fold higher than the one found in the simulation of the disocclusion in canine guide. CONCLUSION: The pattern of disocclusion in canine guide is the ideal for implant-supported mandibular complete denture.

Contatos oclusais em balanceio em indivíduos jovens: funcionais? / Balancing side occlusal contacts in young people: are they functional?

Um importante fator no estudo da oclusão diz respeito à correta detecção da presença de contatos oclusais no lado de balanceio, sua intensidade e localização. O presente estudo teve por objetivo avaliar a ocorrência de contatos em balanceio em 30 indivíduos jovens, durante o ato mastigatório, utilizando como material de registro uma mistura de verniz cavitário e pó de fosfato de zinco. Vinte e três jovens ou 76.67% dos participantes apresentaram contatos no lado de balanceio bilateralmente, normais ou interferentes. Considerando-se apenas os contatos considerados normais, que não excederam a intensidade dos contatos no lado de trabalho, 50% dos participantes apresentaram contatos bilaterais, 6.67% apresentaram contatos unilaterais no lado direito e 20% apresentaram contatos unilaterais no lado esquerdo. A metodologia funcional empregada na detecção de contatos em balanceio evidenciou sua presença de maneira clara e precisa, comparativamente ao método que emprega papel carbono articular. Os resultados obtidos permitiram concluir que contatos oclusais no lado de balanceio em indivíduos jovens são um achado funcional freqüente.

An important factor in occlusion study is related to the correct balancing-side contacts detection, its intensity and location. This study intended to evaluate balancing-side contacts occurrence in 30 young people, during mastication, using a mixture of varnish and zinc cement powder. Twenty-three young people or 76.67% of the participants showed bilateral balancingside contacts, normal or interferent. Considering only the normal contacts, it means, the ones which did not exceed working-side contacts intensity, 50% of the participants showed bilateral contacts, 6.67% showed unilateral contacts on the right side and 20% showed unilateral contacts on the left side. The functional methodology used in balancing-side contact detection denoted its presence clearly and accurately, comparatively to the carbon paper method. The results allowed us to conclude that balancing-side contacts in young people are a frequent finding.