Color variation induced by abutments in the superior anterior maxilla: an in vitro study in the pig gingiva
The Journal of Advanced Prosthodontics
;
: 423-432, 2016.
Artigo
em Inglês
| WPRIM
| ID: wpr-213533
ABSTRACT
PURPOSE:
The aim of this work is to evaluate different types of materials used for making implant abutments, by means of an in vitro study and a review of the literature, in order to identify the indications for a better choice of an implant-supported restoration in the anterior section. MATERIALS ANDMETHODS:
5 implant abutments were tested in a random order in the superior anterior maxilla of pig gingiva (n = 8) titanium dioxide (Nobel Biocare); zirconium dioxide, Standard BO shade (Nobel Biocare, Kloten, Switzerland); zirconium dioxide, Light BI shade (Nobel Biocare); zirconium dioxide, Intense A 3.5 shade (Nobel Biocare); and aluminium oxide. Each abutment was tested for 2 mm and 3 mm thickness. To determine color variation, VITA Easyshade Advance spectrophotometer (Vita Zahnfabrik, Bad Sackingen, Germany) was used.RESULTS:
Results showed that the color variation induced by the abutment would be affected by the abutment material and gingival thickness, when the gingival thickness is 2 mm. All materials except zirconium dioxide (Standard shade) caused a visible change of color. Then, as the thickness of the gingiva increased to 3 mm, the color variation was attenuated in a significant manner and became invisible for all types of abutments, except those made of aluminium oxide.CONCLUSION:
Zirconium dioxide is the material causing the lowest color variation at 2 mm and at 3 mm, whereas aluminium oxide causes the highest color variation no matter the thickness.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Titânio
/
Zircônio
/
Técnicas In Vitro
/
Gengiva
/
Maxila
Idioma:
Inglês
Revista:
The Journal of Advanced Prosthodontics
Ano de publicação:
2016
Tipo de documento:
Artigo
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