| Autor: |
Ghavam M, Goodarzy A |
| Jazyk: |
angličtina |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Frontiers in Dentistry, Vol 1, Iss 1 (2004) |
| Druh dokumentu: |
article |
| ISSN: |
2676-296X |
| Popis: |
Statement of Problem: Esthetic materials undergo some physical and mechanical changes, during their service in oral cavity. Purpose: The aim of this study was the evaluation of the color and opacity stability of Ideal Makoo (IDM) composites and compare it with Tetric ceram. Material and methods: Fifteen disk shaped samples of each material was divided into three groups of five. Different aging treatments were applied to each group. The contrast ratio of 1mm thickness and E of the samples were evaluated at base line and after aging, using CIE system and Data Flash spectrophotometer. All the samples were kept at 37C. Results: Baseline opacity of IDM was relatively high (77.60%8.6). Both materials showed increased opacity after aging. The highest E belonged to IDM samples of B group, which was significantly more than Tetric Ceram (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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