We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
THE SEM VIEW OF THE EROSION BY ACIDIC SOLUTIONS ON TOOTH-COLOURED DENTAL MATERIALS.
- Authors
Wan Bakar, W. Z.; McIntyre, J.
- Abstract
Objectives: Not many study been done to assess the effect of erosion on dental materials. This in vitro study was to assess the surface damage of tooth-coloured dental restorative materials by erosive acids. Methods: Sixty eight anterior tooth crowns were restored with four types of restoration materials which are conventional GIC (Fuji IX and Ketac Fil +) , RMGIC (Fuji II LC) and composite resin (Z100). They were painted with nail varnish to leave a 2 mm border around the restorations before exposed to 0.113% HCl, 5.0% citric acid, 0.02% orthophosphoric acids or DDW for 2, 4, 8 and 16 hours. Half of the surfaces of sixteen porcelain sample (Ducera, Germany) were painted before similar acids exposure, weekly up to a month. The surface effect of erosion was analysed using Scanning Electron Microscope (SEM). Results: The conventional GICs sustained severe erosion by the HCl and citric acid solutions. Minor effect seen on Fuji II and Z100 showed very stable. They are less affected by the phosphoric acids at the concentration tested. No effect seen on dental porcelain even after one month. Conclusions: The conventional GIC materials could sustain severe damage if tooth exposed to high acidic environment or erosion. Composite resin and porcelain could survive better in this sort of environment. This study could help dentist to choose material for patient with erosion problems.
- Publication
Malaysian Dental Journal, 2008, Vol 29, Issue 1, p68
- ISSN
0126-8023
- Publication type
Article