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Técnica de resina composta injetável versus técnica de estratificação em restaurações estéticas anteriores: revisão integrativa
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Ao restaurar dentes anteriores, o resultado estético depende sempre de vários fatores. Vários métodos foram desenvolvidos para tentar mimetizar a morfologia do dente. A estratificação é um método de restauração em camadas que utiliza materiais com diferentes propriedades óticas que otimizam a estética do dente. Com o desenvolvimento das resinas compostas e das técnicas restauradoras a técnica de resina composta injetável está a emergir como um método alternativo aos convencionais para realizar restaurações dentárias. Assim, com esta revisão integrativa pretende-se comparar a técnica de resina composta injetável com a técnica de estratificação em termos de adaptação marginal e resistência ao desgaste, pretendendo responder à seguinte questão de investigação: "Qual das técnicas apresenta melhor adaptação marginal e resistência ao desgaste?". A presente revisão seguiu as guidelines PRISMA e a estratégia PICO, sendo a pesquisa realizada nas bases de dados PubMed, B-On e ScienceDirect, de artigos publicados no intervalo 2014-2024, com as seguintes palavras-chave: "composite resin", "injectable technique", "stratification technique", "resistance" e "marginal adaptation" combinadas entre si com os operadores booleanos AND e/ou OR e tendo em conta os critérios de inclusão e exclusão definidos. Obtiveram-se então 12 estudos que foram incluídos nesta revisão. Todos eles são casos clínicos sendo que três deles englobaram dois ou três casos no mesmo estudo. Quanto à técnica utilizada, a maioria dos estudos referem-se à técnica de resina composta injetável, com apenas 5 estudos sendo referentes à técnica de estratificação. Verifica-se que para a reabilitação de diastemas a técnica mais utilizada nos estudos incluídos é a técnica de resina composta injetável enquanto no caso das fraturas ou descolorações dentárias a técnica preferível é a estratificação. A técnica de resina composta injetável é uma alternativa eficaz à estratificação, proporcionando menor tempo de execução e menor risco de erros do operador, além de apresentar adaptação marginal e resistência semelhantes às da técnica convencional. Assim, cabe ao médico dentista, conforme a situação clínica, recorrer a um ou outro procedimento consoante a sua destreza manual, tempo clínico disponível, necessidade estética e tipo e quantidade de perda de estrutura dentária.
When restoring anterior teeth, the aesthetic result always depends on several factors. Several methods have been developed to try to mimic the morphology of the tooth. Layering is a layered restoration method that uses materials with different optical properties that optimize the aesthetics of the tooth. With the development of composite resins and restorative techniques, the injectable composite resin technique is emerging as an alternative method to conventional methods for performing dental restorations. Thus, this integrative review aims to compare the injectable composite resin technique with the layering technique in terms of marginal adaptation and wear resistance, aiming to answer the following research question: "Which of the techniques presents better marginal adaptation and wear resistance?". This review followed the PRISMA guidelines and the PICO strategy, with the search carried out in the PubMed, B-On and ScienceDirect databases, for articles published between 2014 and 2024, with the following keywords: "composite resin", "injectable technique", "stratification technique", "resistance" and "marginal adaptation" combined with the Boolean operators AND and/or OR and taking into account the defined inclusion and exclusion criteria. Twelve studies were then obtained and included in this review. All of them are case reports, with three of them encompassing two or three cases in the same study. Regarding the technique used, most studies refer to the injectable composite resin technique, with only 5 studies referring to the stratification technique. It was found that for the rehabilitation of diastemas, the most used technique in the included studies is the injectable composite resin technique, while in the case of fractures or tooth discoloration, the preferable technique is stratification. The injectable composite resin technique may be considered an effective alternative to layering, providing shorter execution time and lower risk of operator error, in addition to presenting marginal adaptation and resistance similar to those of the conventional technique. Therefore, it is up to the dentist, depending on the clinical situation, to resort to one or the other procedure according to his/her manual dexterity, available clinical time, aesthetic need and type and amount of tooth structure loss.
When restoring anterior teeth, the aesthetic result always depends on several factors. Several methods have been developed to try to mimic the morphology of the tooth. Layering is a layered restoration method that uses materials with different optical properties that optimize the aesthetics of the tooth. With the development of composite resins and restorative techniques, the injectable composite resin technique is emerging as an alternative method to conventional methods for performing dental restorations. Thus, this integrative review aims to compare the injectable composite resin technique with the layering technique in terms of marginal adaptation and wear resistance, aiming to answer the following research question: "Which of the techniques presents better marginal adaptation and wear resistance?". This review followed the PRISMA guidelines and the PICO strategy, with the search carried out in the PubMed, B-On and ScienceDirect databases, for articles published between 2014 and 2024, with the following keywords: "composite resin", "injectable technique", "stratification technique", "resistance" and "marginal adaptation" combined with the Boolean operators AND and/or OR and taking into account the defined inclusion and exclusion criteria. Twelve studies were then obtained and included in this review. All of them are case reports, with three of them encompassing two or three cases in the same study. Regarding the technique used, most studies refer to the injectable composite resin technique, with only 5 studies referring to the stratification technique. It was found that for the rehabilitation of diastemas, the most used technique in the included studies is the injectable composite resin technique, while in the case of fractures or tooth discoloration, the preferable technique is stratification. The injectable composite resin technique may be considered an effective alternative to layering, providing shorter execution time and lower risk of operator error, in addition to presenting marginal adaptation and resistance similar to those of the conventional technique. Therefore, it is up to the dentist, depending on the clinical situation, to resort to one or the other procedure according to his/her manual dexterity, available clinical time, aesthetic need and type and amount of tooth structure loss.
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Resina composta Técnica injetável Técnica de estratificação Resistência Adaptação marginal Composite resin Injectable technique Stratification technique Resistance Marginal adaptation