1Postgraduate Student Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India
2Professor & Head, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India
3Associate Professor, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India
4Professor Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India
5Associate Professor, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India
6Professor & Head, Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Mangalore, India
*Corresponding Author: Dr Shobha J Rodrigues Pofessor & Head, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education (MAHE), Mangalore, Email: shobha.j@manipal.edu
Online published on 25 September, 2018.
To evaluate the influence of two different surface treatments on the stainability and color change of ceramic restorations.
veneering lithium disilicate was used to fabricate standardised discs (n=60). These discs were abraded using a red band diamond abrasive. Samples were divided in three groups. Surface Roughness (Ra)values before and after the surface treatment were calculated using a surface profilometer. These specimens were further subdivided into 2 subgroups with 10 samples each. Colour change (δE) values were calculated at 6, 12, 18 and 24 days.
Independent t test for the groups Polish and Reglaze showed a significant difference (p = 0.003). One way ANOvA for the Green tea group showed a significant difference (p = 0.007) at 12 days between Control and Polish and Control and Reglaze. One way ANOvA for the Turmeric group showed a significant difference at 12, 18 and 24 days.
For increased periods of clinical usage corresponding to increased immersion times, reglazing was necessary to prevent stain absorption especially against Turmeric.
Color stability. emax Press. Turmeric. Green Tea
