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Biomimetismo estético : estudo sobre o desempenho clínico de novas resinas compostas camaleónicas em medicina dentária
| Name: | Description: | Size: | Format: | |
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| 8.24 MB | Adobe PDF |
Authors
Abstract(s)
Objetivos: O objetivo do presente trabalho foi avaliar o desempenho clínico de uma resina composta camaleónica em comparação com uma técnica de estratificação tradicional, através da adaptação cromática e estética às estruturas dentárias adjacentes, em dentes anteriores.
Materiais e métodos: Este estudo foi desenvolvido com dois pacientes com necessidade de restauração de cavidades de black classe IV em dentes anteriores simétricos. Num quadrante foi utilizada a resina composta camaleónica, Venus® Pearl ONE (Kulzer, Mitsui Chemicals, Hanau, Alemanha), e, no outro quadrante, outra resina segundo uma técnica de estratificação tradicional (split-mouth). Ambas as restaurações foram realizadas no mesmo dia com as mesmas condições de iluminação. Os materiais foram aplicados de acordo com as instruções dos fabricantes e o sistema adesivo utilizado foi o Scotchbond™ Universal Plus (3M™ ESPE, St. Paul, MN, EUA). Após um mês, o paciente avaliou a qualidade da cor da restauração através
de uma escala visual numérica (1-5) e foram registados os valores do sistema CIELab com o colorímetro OptiShade Style Italiano® (Smile Line SA, St-Imier, Suiça). Estes valores foram convertidos na escala VITA Classical® (VITA, Bad Säckingen, Alemanha).
Resultados: O caso 1 apresentou uma pontuação de 5, revelando uma correspondência exata ou sem diferença de cor entre as restaurações. O caso 2 apresentou uma pontuação de 2, revelando uma correspondência pobre ou dificilmente aceitável entre o dente 11 e 21. No caso 1, a correspondência dos valores de CIELab mostrou resultados variados na escala VITA. No caso 2, a correspondência dos valores de sistema CIELab foi de C4 e A4.
Conclusões: Os resultados obtidos nos dois casos clínicos mostram que a resina camaleónica apresentou uma capacidade de adaptação cromática com os dentes adjacentes, sem, contudo, satisfazer plenamente os critérios estéticos mais exigentes quando aplicada em dentes anteriores.
Objectives: The aim of this study was to evaluate the clinical performance of a chameleon composite resin in comparison with a traditional layering technique by assessing its chromatic and aesthetic adaptation to adjacent dental structures in anterior teeth. Materials and methods: This study involved two patients requiring Class IV black cavity restorations on symmetric anterior teeth. In one quadrant, the chameleon composite resin Venus® Pearl ONE (Kulzer, Mitsui Chemicals, Hanau, Germany) was used, while in the other quadrant, a traditional layering technique was applied (split-mouth design). Both restorations were performed on the same day under identical lighting conditions. The materials were applied following the manufacturers' instructions, and the adhesive system used was Scotchbond™ Universal Plus (3M™ ESPE, St. Paul, MN, USA). After one month, the patient evaluated the color quality of the restoration using a numerical visual scale (1-5), and CIELab values were recorded using the OptiShade Style Italiano® colorimeter (Smile Line SA, St-Imier, Switzerland). These values were converted into the VITA Classical® shade guide (VITA, Bad Säckingen, Germany). Results: Case 1 showed a score of 5, indicating an exact or undetectable color match between the restorations. Case 2 showed a score of 2, indicating poor or barely acceptable color matching between teeth 11 and 21. In Case 1, the CIELab values corresponded to varied results on the VITA scale, whereas in Case 2, the CIELab system values matched shades C4 and A4. Conclusions: The clinical outcomes from both cases suggest that the chameleon resin exhibited satisfactory chromatic adaptation to adjacent teeth; however, it did not fully meet the highest aesthetic standards when used on anterior teeth.
Objectives: The aim of this study was to evaluate the clinical performance of a chameleon composite resin in comparison with a traditional layering technique by assessing its chromatic and aesthetic adaptation to adjacent dental structures in anterior teeth. Materials and methods: This study involved two patients requiring Class IV black cavity restorations on symmetric anterior teeth. In one quadrant, the chameleon composite resin Venus® Pearl ONE (Kulzer, Mitsui Chemicals, Hanau, Germany) was used, while in the other quadrant, a traditional layering technique was applied (split-mouth design). Both restorations were performed on the same day under identical lighting conditions. The materials were applied following the manufacturers' instructions, and the adhesive system used was Scotchbond™ Universal Plus (3M™ ESPE, St. Paul, MN, USA). After one month, the patient evaluated the color quality of the restoration using a numerical visual scale (1-5), and CIELab values were recorded using the OptiShade Style Italiano® colorimeter (Smile Line SA, St-Imier, Switzerland). These values were converted into the VITA Classical® shade guide (VITA, Bad Säckingen, Germany). Results: Case 1 showed a score of 5, indicating an exact or undetectable color match between the restorations. Case 2 showed a score of 2, indicating poor or barely acceptable color matching between teeth 11 and 21. In Case 1, the CIELab values corresponded to varied results on the VITA scale, whereas in Case 2, the CIELab system values matched shades C4 and A4. Conclusions: The clinical outcomes from both cases suggest that the chameleon resin exhibited satisfactory chromatic adaptation to adjacent teeth; however, it did not fully meet the highest aesthetic standards when used on anterior teeth.
Description
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Keywords
Resinas compostas Efeito camaleónico Restaurações estéticas Biomimetismo