Comparative evaluation of microhardness of dentin treated with 4% titanium tetrafluoride and 1.23% acidic phosphate fluoride gel before and after exposure to acidic pH: An ex vivo study
| Autor: | Koppolu Madhusudhana, Vivek Kandanuru, Lenin Babu, Harish Madhav Vitta, Vamsi Krishna Ramachandruni |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Dentistry 4% titanium tetrafluoride 02 engineering and technology Indentation hardness Comparative evaluation 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Dentin medicine General Dentistry business.industry 030206 dentistry 021001 nanoscience & nanotechnology Phosphate Demineralization medicine.anatomical_structure chemistry 1.23% acidic phosphate fluoride gel Titanium tetrafluoride Original Article 0210 nano-technology business Fluoride Vickers microhardness Ex vivo Nuclear chemistry |
| Zdroj: | Journal of Conservative Dentistry : JCD |
| ISSN: | 0974-5203 0972-0707 |
| Popis: | Aim: The aim of this study was to comparatively evaluate the effect of 4% titanium tetrafluoride (TiF4) and 1.23% acidic phosphate fluoride (APF) gel on the microhardness of human coronal dentin. Materials and Methods: Thirty noncarious extracted premolars were collected and sectioned buccolingually with the help of diamond disk. Exposing the sectioned surface, teeth were embedded in self-cure acrylic. Exposed coronal dentin was polished with abrasive papers starting with 220–5000 grit. Microhardness was evaluated by Vickers microhardness evaluator, at four different stages as follows - stage 1: Baseline values, Stage 2: Exposure of specimens to acidic environment at a pH 1 for 5 min, Stage 3: Application of 1.23% APF gel and 4% TiF4 (after dividing the specimens into two groups, i.e., Group A and B, respectively), and Stage 4: Followed by exposure of fluoridated specimens to acidic protocol as mentioned above. Results: Paired t-test was used to compare the readings between Groups A and B. Group B has shown greater resistance to decrease in microhardness of coronal dentin (P < 0.05) on exposure to acidic protocol. Conclusion: Due to acidic pH (1.5) of 4% TiF4, amount of increase in microhardness of dentin is |
| Databáze: | OpenAIRE |
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