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PPG_33432 | 1.19 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Em situações de cáries extensas justa ou mesmo infra-gengivais numa superfície mesial ou
distal, é difícil realizar um bom isolamento do campo operatório. Este facto condiciona o
sucesso reabilitador sentenciado pela contaminação, invasão do espaço biológico pelo
material restaurador, entre outros problemas. Para ultrapassar esta dificuldade, surgiu uma
técnica denominada elevação da margem gengival, ou recolocação da margem cervical.
A avaliação clínica é fundamental para determinar as situações indicadas para manipulação
de tecidos moles, nomeadamente para alongamento coronário ou para procedimentos como
a elevação da margem gengival. São utilizadas matrizes pré-curvadas e a sua customização
à zona gengival é dependente da destreza do profissional que tem de permitir uma adaptação
rigorosa de forma a impedir a infiltração marginal. Há diversas adaptações à técnica original,
com vários materiais restauradores do build up e da estrutura suprajacente.
O objectivo deste trabalho foi efectuar uma descrição da técnica, e a análise da informação
científica publicada de suporte à sua aplicação clínica de forma previsível. Sendo uma técnica
relativamente recente há ainda pouca informação. São necessários mais estudos para uma
evidência que suporte a criação de protocolos relativamente ao tipo de materiais usados no
selamento dentinário e no build up, e sobre a percepção dos verdadeiros factores que
interferem no sucesso a longo prazo.
In situations of extensive just cavities or even infragingival cavities on a mesial or distal surface, it’s difficult to achieve a good operative field isolation. This fact conditions the rehabilitation success sentenced by contamination, invasion of the biological space by restorative material, among other problems. To overcome this difficulty, a technique called elevation of the gingival margin, emerged. Clinical evaluation is essential to determine the situations indicated for soft tissues manipulation, namely for crown lengthening, and those indicated for gingival margin elevation. Pre curved matrices are used and their customization to the gingival zone is dependent on the professional’s skill who has to allow a rigorous adaptation in order to prevent margin infiltrations. There are several adaptations to the original technique, with several restorative materials from the buildup to the overlying structure. This work’s aim was to describe the technique, and also analyze published scientific information in order to support its clinical application. It is a relatively recent technique, and there is still little information. Further studies are needed for evidence that supports the creation of protocols in relation to the type of materials used in dental sealing and build up, and on the perception of the real factors that interfere with long-term success.
In situations of extensive just cavities or even infragingival cavities on a mesial or distal surface, it’s difficult to achieve a good operative field isolation. This fact conditions the rehabilitation success sentenced by contamination, invasion of the biological space by restorative material, among other problems. To overcome this difficulty, a technique called elevation of the gingival margin, emerged. Clinical evaluation is essential to determine the situations indicated for soft tissues manipulation, namely for crown lengthening, and those indicated for gingival margin elevation. Pre curved matrices are used and their customization to the gingival zone is dependent on the professional’s skill who has to allow a rigorous adaptation in order to prevent margin infiltrations. There are several adaptations to the original technique, with several restorative materials from the buildup to the overlying structure. This work’s aim was to describe the technique, and also analyze published scientific information in order to support its clinical application. It is a relatively recent technique, and there is still little information. Further studies are needed for evidence that supports the creation of protocols in relation to the type of materials used in dental sealing and build up, and on the perception of the real factors that interfere with long-term success.
Description
Keywords
Elevação da margem gengival Classe II Deep elevation margin Cervical margin relocation Proximal box elevation