- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
An in vitro comparative evaluation of microleakage in open sandwich technique in Class V restoration (A dye penetration study) | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 23, Issue 0, 2011, Pages 1-4 | ||
| Author | ||
| Alaa J. Khadhim | ||
| Abstract | ||
| Background: The purpose of this in vitro study was to compare the microleakage at dentin margins of class V cavities filled with compomer alone and compomer lined with conventional glass ionomer cement or resin modified glass ionomer cement. Materials and Methods: fifteen recently extracted human premolars were prepared with standardized box shaped class V cavities of 3.0 mm (mesial-distal), 2.0 mm (occlusal-gingival), and 2.0 mm depth with margins located on enamel and dentin/cementum on the buccal or lingual surfaces. The cavities were randomly assignedinto three groups (n=10): Group I –compomer Dyract extraDetsply DetryGmbH (control); Group II – compomer Dyract extraDetsply DetryGmbH lined with conventional GIC (promedica Medifil). Group III – compomer Dyract extra Detsply DetryGmbH lined with RMGIC (3M ESPE Vtrebond). After being immersed in tap water for 24 h, the specimens were thermocycled (500 cycles, 5°-55°C, 30 sec dwell time) and immersed in a 0.5% basic fuchsine solution for 24 h. The restorations were sectioned longitudinally and gingival margins were evaluated for microleakage using a 0-4 scale. Data were subjected to the Kruskal-Wallis test and Mann-Whitney U tests at p<0.05. Results: a statistically significant difference among groups was observed. The RMGIC show the less gingival microleakage while the conventional GIC show the most microleakage. Conclusion: The use of a RMGIC liner under composite in open sandwich technique minimizes the gingival micro leakage, while the conventional GIC exhited the contrary. | ||
| Keywords | ||
| RMGIC liner; Microleakage; Compomer resin | ||
|
Statistics Article View: 181 PDF Download: 153 |
||