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Aplicação da "stamp technique" em restaurações da superfície oclusal de dentes posteriores
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| 1.65 MB | Adobe PDF |
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Abstract(s)
Objetivos: Avaliar qualitativamente a eficácia de três técnicas de restauração dentária de cavidades Classe I de Black com diferentes materiais de matriz oclusal e duas resinas restauradoras. A avaliação foi feita no que diz respeito à reprodução da morfologia oclusal, adaptação marginal, cor da resina relativemente à cor do dente, facilidade de manipulação e custo.
Materiais e Métodos: Foram recolhidos dezoito molares hígidos, com ausência de fracturas ou restaurações. A confeção das matrizes oclusais foi realizada com três materiais distintos: uma resina fluida restauradora (Tetric EvoFlow), um material polimérico para barreira gengival (OpalDam®) e um silicone de adição de baixa
viscosidade (Elite HD+ Light Body). Para as restaurações, foram utilizadas duas resinas compostas: uma nanohíbrida tradicional (Filtek Z250) e uma camaleónica (Venus® Pearl ONE). As cavidades de classe I foram preparadas na superfície oclusal dos dentes selecionados. As amostras foram aleatoriamente distribuídas em seis grupos experimentais (n=3), conforme as combinações entre os dois fatores em estudo: o tipo de
matriz oclusal e o tipo de resina composta restauradora.
Resultados: A técnica com resina fluida apresentou o melhor desempenho global, combinando estética, fidelidade anatómica e facilidade de aplicação. A matriz confeccionada com silicone de adição também mostrou bons resultados, embora exigisse mais tempo e maior precisão operatória. A matriz com barreira gengival destacou-se pela adaptação marginal, mas demonstrou menor consistência na reprodução morfológica. A resina tradicional superou a camaleónica em termos de desempenho global. Os custos
variaram entre as técnicas, sendo o silicone a opção mais económica. A seleção dos materiais influenciou diretamente a qualidade final das restaurações.
Conclusão: A Stamp technique demonstrou ser uma abordagem eficaz na restauração de cavidades Classe I. A técnica com resina fluida revelou-se particularmente vantajosa, ao combinar simplicidade operatória com bons resultados clínicos.
Purpose: This study aimed to qualitatively evaluate the effectiveness of three restorative techniques for Class I Black cavities, using different occlusal matrix materials and two composite resins. The assessment focused on occlusal morphology reproduction, marginal adaptation, shade matching, handling ease, and cost. Materials and Methods: Eighteen molars with no fractures or restorations were collected. The occlusal matrices were fabricated using three different materials: a flowable restorative resin (Tetric EvoFlow), a polymeric gingival barrier material (OpalDam®), and a low-viscosity addition silicone (Elite HD+ Light Body). Two composite resins were used for the restorations: a traditional nanohybrid (Filtek Z250) and a chameleon-type (Venus® Pearl ONE). Class I cavities were prepared on the occlusal surface of the selected teeth. The samples were randomly distributed into six experimental groups (n=3), based on the combinations of the two factors under study: the type of occlusal matrix and the type of composite resin. Results: The technique using flowable resin showed the best overall performance, combining esthetics, anatomical fidelity, and ease of application. The matrix made with addition silicone also provided good outcomes, although it required more time and greater operative precision. The matrix created with the gingival barrier material stood out for its marginal adaptation but had less consistency in morphological reproduction. The traditional composite outperformed the chameleon resin in overall performance. Costs varied among techniques, with silicone being the most economical option. The materials selected directly influenced the final restoration quality. Conclusion: The Stamp technique proved to be an effective approach for restoring Class I cavities. The technique using flowable resin was particularly advantageous, offering procedural simplicity and favorable clinical results.
Purpose: This study aimed to qualitatively evaluate the effectiveness of three restorative techniques for Class I Black cavities, using different occlusal matrix materials and two composite resins. The assessment focused on occlusal morphology reproduction, marginal adaptation, shade matching, handling ease, and cost. Materials and Methods: Eighteen molars with no fractures or restorations were collected. The occlusal matrices were fabricated using three different materials: a flowable restorative resin (Tetric EvoFlow), a polymeric gingival barrier material (OpalDam®), and a low-viscosity addition silicone (Elite HD+ Light Body). Two composite resins were used for the restorations: a traditional nanohybrid (Filtek Z250) and a chameleon-type (Venus® Pearl ONE). Class I cavities were prepared on the occlusal surface of the selected teeth. The samples were randomly distributed into six experimental groups (n=3), based on the combinations of the two factors under study: the type of occlusal matrix and the type of composite resin. Results: The technique using flowable resin showed the best overall performance, combining esthetics, anatomical fidelity, and ease of application. The matrix made with addition silicone also provided good outcomes, although it required more time and greater operative precision. The matrix created with the gingival barrier material stood out for its marginal adaptation but had less consistency in morphological reproduction. The traditional composite outperformed the chameleon resin in overall performance. Costs varied among techniques, with silicone being the most economical option. The materials selected directly influenced the final restoration quality. Conclusion: The Stamp technique proved to be an effective approach for restoring Class I cavities. The technique using flowable resin was particularly advantageous, offering procedural simplicity and favorable clinical results.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
Morfologia oclusal Técnica de matriz oclusal Anatomia oclusal Resinas compostas