In vitro evaluation of the color stability and surface roughness of a new composite flow

• Gina Khazaal ^[5] ; Maha Daou ^[6] ; Syed-Sarosh Mahdi ^[1] ; Zohaib Ahmed ^[7] ; Elie Maalouf ^[2] ; Gopi Batteni ^[3] ; Syed-Saad B. Qasim ^[4] ; Cynthia Kassis ^[8] ; Daniyal Agha ^[9] ; Helene Haddad ^[5] ; Ryan el Hajj Assaf ^[10] ; Carina-Mehanna Zogheib ^[11]
  1. [1] International Medical University

     International Medical University

     Malasia

     
  2. [2] Lebanese University

     Lebanese University

     Líbano

     
  3. [3] Università di Camerino

     Università di Camerino

     Camerino, Italia

     
  4. [4] Kuwait University

     Kuwait University

     Kuwait

     
  5. [5] Department of Esthetic and Prosthetic Dentistry, Dental Faculty, Saint Joseph University of Beirut, Lebanon
  6. [6] Director of Postgraduate Program in Research and Dental Materials, Department of Pediatric Dentistry, Dental Faculty, Saint Joseph University of Beirut, Lebanon
  7. [7] Research member-New York Chapter NYHDA, USA. College of Dental Medicine, Columbia University, NY, USA
  8. [8] Dental Faculty, Saint Joseph University of Beirut, Lebanon
  9. [9] 0Dental Section Jinnah Medical and Dental College, Sohail University, Karachi. 74800, Pakistan
  10. [10] 1Dr Ryan Assaf’s Private Dental Clinic, Beirut Lebanon
  11. [11] 2Director of Postgraduate Program in Restorative and Esthetic Dentistry, Dental Faculty, Saint Joseph University of Beirut, Lebanon

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 15, Nº. 1 (January), 2023, págs. 43-50
• Idioma: inglés
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• Resumen

  • The aim of this study was to evaluate the color stability and the surface roughness of a bulk-fill composite flow (SDR® Plus) by comparison to an ORMOCER-based composite (Ceram.x® Universal SphereTEC™) in order to confirm the validity of using SDR® Plus in the anterior region and to allow the prediction of its long-term results.

    35 composite specimens of the same shade (A2), thickness (2mm) and shape of both types of composite were prepared. The specimens were cured and polished according to the manufacturer’s instructions. The initial shade of the specimens was measured using a calibrated EasyShade spectrophotometer. The initial surface roughness of the specimens was measured by AFM. Afterwards, the specimens were subjected to an accelerated aging procedure through thermo-cycling, a coffee stain challenge and brushing to simulate two years in the oral environment. The shade and surface roughness of the specimens were measured again after the accelerated aging procedure.

    The mean ΔE was significantly larger than 3.368 in Ceram.x® group (-p-value<0.001) and SDR® Plus group (-p-value<0.001). The mean surface roughness has significantly increased for both groups after aging with no significant difference between the two groups. It however remained clinically acceptable.

    SDR® Plus and Ceram.x® showed similar surface roughness when subjected to the same testing conditions. Concerning the color stability, both composites displayed noticeable discoloration, with higher ΔE values registered for Ceram.x®.