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Degree of Conversion and Ph for Calcium Formed Pulp Capping Materials (An in Vitro Study) | ||
| Tikrit Journal for Dental Sciences | ||
| Volume 10, Issue 2, December 2022, Pages 128-131 PDF (294.16 K) | ||
| DOI: 10.25130/tjds.10.2.4 | ||
| Author | ||
| Zena Mohammad younis* | ||
| Department of Conservative Dentistry College of dentistry, university of Mosul, Mosul, Iraq. | ||
| Abstract | ||
| The purpose of this study is to look into the effects of calcium hydroxide and theracal the degree of polymerization of a dual cure liner, as well as pH at various times. Materials and procedures • The liner was made up of forty discs of the tested materials (resin modified calcium silicate and calcium hydroxide pulp capping). Each tested material was separated into two subgroups according to the test to be done (each subgroup n=10) and tested. Cylinders of 8mm diameter and 2mm thickness were photoactivated for 15 seconds and then divided into two groups according to their type. Dgree of conversion A Fourier-transform infrared spectrometer with a high conversion degree was used. By putting a 1 mm-thick sample on the crystal and light curing it for 20 seconds, the time DC of Theracal and dycal were determined. The activated light had a wavelength of 450–490nm and a power density of 1,500 mW/cm2. Theracal and calcium hydroxide (dycal) degrees of conversion (DC) mean during curing for a period of 20 seconds were measured and analyzeds • A PH reading The pH of each material's supernatant was measured using a pH meter. The findings were calculated immediately, three hours later, and 24 hours afterwards. As a control, a buffering solution was applied. The standard deviation of the pH mean values was then calculated.. T test is used to assess the data. Results: Dycal and thercal tested materials Showed a very alkaline pH afte 3 hours and gradual decreased in pH after 24 hours with no significant differences between the tested materials. Photo activation of the tested materials provided more polymerization of theracal than dycal with no significant difference between them( p value >0.05 ). Conclusion: Different modification should be made to increase the physical and chemical activity of the pulp capping materials. | ||
| Keywords | ||
| Theracal dycal ph degree of conversion | ||
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