hanafy, A., mahfouze, S., El-Baz, G. (2024). Comparison Between Micro hardness Three Different Types of Glass ionomer Restorations in Class V in Primary Teeth: An in- Vitro Study. Dental Science Updates, 5(2), 365-372. doi: 10.21608/dsu.2024.254743.1212
Aya badr hanafy; shimaa mohamed mahfouze; Ghada Abdel Hamid El-Baz. "Comparison Between Micro hardness Three Different Types of Glass ionomer Restorations in Class V in Primary Teeth: An in- Vitro Study". Dental Science Updates, 5, 2, 2024, 365-372. doi: 10.21608/dsu.2024.254743.1212
hanafy, A., mahfouze, S., El-Baz, G. (2024). 'Comparison Between Micro hardness Three Different Types of Glass ionomer Restorations in Class V in Primary Teeth: An in- Vitro Study', Dental Science Updates, 5(2), pp. 365-372. doi: 10.21608/dsu.2024.254743.1212
hanafy, A., mahfouze, S., El-Baz, G. Comparison Between Micro hardness Three Different Types of Glass ionomer Restorations in Class V in Primary Teeth: An in- Vitro Study. Dental Science Updates, 2024; 5(2): 365-372. doi: 10.21608/dsu.2024.254743.1212
Comparison Between Micro hardness Three Different Types of Glass ionomer Restorations in Class V in Primary Teeth: An in- Vitro Study
1pediatric dentistry,faculty of dentistry,suez canal university .
2Associate professor of Pediatric, Preventive Dentistry and Dental Public Health Faculty of Dentistry, Suez Canal University.
3Prof. of Pediatric, Preventive Dentistry and Dental Public Health Faculty of Dentistry, Suez Canal University
Abstract
Background: 60–90% of schoolchildren are exposed to dental caries in both developing and developed countries. Furthermore, among Middle-Eastern schoolchildren studies have shown that the prevalence of dental caries was up to 83.3% .and in Egyptian children and adolescents (3-18y) were examined over one year, 74% of them had dental caries. Glass ionomer can form general chemical bonds with tooth substrate and display adequate margin sealing. Aim: This study aimed to evaluate and compare The Micro hardness of Glass ionomer(FUJI I), Highly viscous glass ionomer (EQUIA)and Bioactive material restoration(ACTIVE) in class V cavity in primary molars. Matrials and methods: A Thirty six extracted primary upper second molars with prepared class V cavity fulfilling the inclusion criteria for microhardness test was divided in three groups according to types of restorative materials ( FUJI I(I), EQUIA(II) and ACTIVA(III) )So, n=12. Results: the statically analysis showed that the highest micro hardness were recorded in EQUIA (mean HV= 51.4 kg/mm2 ) followed by ACTIVA (mean HV= 51.4 kg/mm2 ) and the lowest microhardness were recorded in FUJI I (mean HV= 50.3 kg/mm2 ). Conclusion: EQUIA (the high-viscous glassionomer restoration) has highest microhardness than other two restorations
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