The study collects Sixty non carious sound human permanent premolars from Tanta University's maxillofacial surgery department. The teeth are cleaned and prepared, and randomly assigned into four groups. The specimens are analyzed using an EDX analysis scanning electron microscope, and surface micro-hardness is determined using a Digital Display Vickers Micro-hardness Tester.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
concentration of calcium and phosphorous in demineralized enamel
Timeframe: 6 weeks
enamel hardness
Timeframe: 6 weeks