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Evaluation of Long-term colour resistance of composite materials used in aligner treatments: A comparative study.
Yildiz, Hilal; Dedeoglu, Mustafa; Aydemir, Merve; Oktay, Hüsamettin.
Afiliación
  • Yildiz H; Department of Orthodontics, Faculty of Dentistry, Graduate School of Health Sciences, Istanbul Medipol University, Istanbul, Turkey.
  • Dedeoglu M; Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
  • Aydemir M; Department of Restorative Dentistry, Faculty of Dentistry, Istanbul Aydin University, Istanbul, Turkey.
  • Oktay H; Department of Orthodontics, Faculty of Dentistry, Istanbul Medipol University, Istanbul, Turkey.
Orthod Craniofac Res ; 2024 Apr 29.
Article en En | MEDLINE | ID: mdl-38682453
ABSTRACT

AIM:

The aim of this study is to evaluate the discolouration resistance of attachments made of composites having different physical properties, filler ratios and viscosity through the simulated environment and conditions. MATERIALS AND

METHODS:

Seventy-two extracted human teeth were aligned to simulate upper and lower dental arches. The attachments were prepared according to the guides determined by ClearCorrect. Three different composite groups were used for attachments preparation Aligner Connect, G-Aenial Universal Injectable, and Tetric Prime and Tetric Evoflow combination. Dental models and aligners were kept in artificial saliva throughout the experiment of 96 weeks. The aligners were also subjected to 2308 thermal cycles and insertion and removing procedures 840 times for each period of 12 weeks. Afterwards, the models were kept in coffee and red wine solutions. Colour measurements were made with Vita Easy Shade 4.0 at 12th, 24th, 48th and 96th simulated weeks.

RESULTS:

No significant difference in discolouration was observed during thermal cycle application of 12th and 24th week experimental periods. In the later periods, discolouration was observed in the composite materials, and G-Aenial Universal Injectable was less coloured than the other samples. The composite samples were more coloured in proportion to their residence time. The G-Aenial Universal Injectable was more affected by wine solution, and Tetric Prime and Tetric Evoflow combination were more affected by coffee solution.

CONCLUSIONS:

Viscosity, resin matrix content and nature of inorganic filler particles of the composite materials significantly affect the colour changing properties of them due to the long-term ageing and exposure to colouring agents.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Orthod Craniofac Res Asunto de la revista: ODONTOLOGIA / ORTODONTIA Año: 2024 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Orthod Craniofac Res Asunto de la revista: ODONTOLOGIA / ORTODONTIA Año: 2024 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Reino Unido