Loading...
Publication
Facetas indiretas em resinas : uma alternativa viável?
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.67 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
A crescente valorização do sorriso e a procura pela estética, tem levado os médicos dentistas a aperfeiçoarem-se em alternativas de tratamentos e materiais para modificar a aparência dentária. Situações clínicas que necessitam de resistência e/ou estética, e que só eram resolvidas com tratamentos protéticos invasivos, hoje podem ser resolvidas com técnicas menos invasivas. A escolha do material influencia estas técnicas e deve ser feita levando-se em consideração, para além das indicações dos materiais, a perda de estrutura dentária e o fator socioeconómico do paciente. Logo, as facetas conseguem combinar o requisito conservador dos seus preparos com qualidades de resistência, biocompatibilidade e, principalmente, estética. Estão indicadas para restaurações de elementos dentários com: alteração de cor, forma, tamanho e posição, em faces vestibulares com lesões cariosas, restaurações deficientes e diastemas.
Os Cerômeros (ceramic optimized polymer) são resinas laboratoriais com polímeros otimizados por cerâmica. São resultantes de uma combinação de partículas de carga inorgânica (micro polímeros de cerâmica) com uma matriz orgânica polimérica. Devido à sua composição e estrutura, os cerômeros reúnem as vantagens da cerâmica (estética, resistência) e apresentam benefícios quando comparados com as porcelanas, como o facto de serem menos friáveis, permitirem reparos, terem menor custo e produzirem menor desgaste no antagonista.
É possível assim afirmar que as facetas de resinas, principalmente as modificadas por cerâmica (cerômeros), são uma alternativa válida e que está em grande crescimento. As suas qualidades ainda estão longe das cerâmicas e porcelanas atualmente existentes no mercado, contudo estas resinas modificadas têm elevado muito essa perspetiva de tratamentos mais acessíveis e duradouros, sendo assim, conclui-se que se respeitados todos os passos de planeamento, preparação dentária, impressões, adesão e cimentação, podem-se obter ótimos resultados clínicos com longevidade, qualidade e estética.
The growing importance of the smile and the pursuit of aesthetics have led dentists to improve their knowledge of alternative treatments and materials to modify the appearance of the teeth. Clinical situations that require resistance and/or aesthetics, and which were only solved with invasive prosthetic treatments, can now be solved with less invasive techniques. Materials's choice influences these techniques and must be made taking into consideration, besides the indications of the materials, the amount of loss of dental structures and the patient's socio-economic factor. Therefore, veneers are able to combine the conservative requirement of their preparations with resistance, biocompatibility and, mainly, aesthetic qualities. They are indicated for restorations of dental elements with: colour change, shape, size and position, in vestibular faces with carious lesions or deficient restorations and diastemas. Ceromers (ceramic optimized polymer) are laboratory resins with ceramic optimized polymers. They result from a combination of inorganic filler particles (ceramic micro polymers) with an organic polymeric matrix. Due to their composition and structure, ceromers bring together the advantages of ceramics (aesthetics, strength) and present benefits when compared to porcelain, such as being less friable, allowing for repairs, being less expensive and producing less wear on the antagonist. It is thus possible to state that resin veneers, especially those modified by ceramics (ceromers), are a valid alternative and are growing fast. Their qualities are still far from those of ceramics and porcelains currently on the market, but these modified resins have greatly increased the perspective of more accessible and long-lasting treatments. Therefore, it can be concluded that if all the steps of planning, tooth preparation, impressions, bonding and cementation are followed, excellent clinical results with longevity, quality and aesthetics can be obtained.
The growing importance of the smile and the pursuit of aesthetics have led dentists to improve their knowledge of alternative treatments and materials to modify the appearance of the teeth. Clinical situations that require resistance and/or aesthetics, and which were only solved with invasive prosthetic treatments, can now be solved with less invasive techniques. Materials's choice influences these techniques and must be made taking into consideration, besides the indications of the materials, the amount of loss of dental structures and the patient's socio-economic factor. Therefore, veneers are able to combine the conservative requirement of their preparations with resistance, biocompatibility and, mainly, aesthetic qualities. They are indicated for restorations of dental elements with: colour change, shape, size and position, in vestibular faces with carious lesions or deficient restorations and diastemas. Ceromers (ceramic optimized polymer) are laboratory resins with ceramic optimized polymers. They result from a combination of inorganic filler particles (ceramic micro polymers) with an organic polymeric matrix. Due to their composition and structure, ceromers bring together the advantages of ceramics (aesthetics, strength) and present benefits when compared to porcelain, such as being less friable, allowing for repairs, being less expensive and producing less wear on the antagonist. It is thus possible to state that resin veneers, especially those modified by ceramics (ceromers), are a valid alternative and are growing fast. Their qualities are still far from those of ceramics and porcelains currently on the market, but these modified resins have greatly increased the perspective of more accessible and long-lasting treatments. Therefore, it can be concluded that if all the steps of planning, tooth preparation, impressions, bonding and cementation are followed, excellent clinical results with longevity, quality and aesthetics can be obtained.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
Facetas indiretas Resinas compostas Cerômeros Estética dentária