Mahmoud H. Al-Johani

Evidence-based dentistry (EBD) integrates the dentist’s clinical expertise, the patient’s needs and preferences, and the most current, clinically relevant evidence. All three are part of the decision-making process for patient…

Determining Diagnostic Test Quality Understanding the diagnostic quality of laboratory testing is essential for proper diagnosis. Sensitivity and specificity provide estimates of how well a particular test is. Positive and…

Epidemiology Epidemiology is the science that studies the patterns, causes, and effects of health and disease conditions in defined populations. It is the cornerstone of public health, and informs policy…

Gingival displacement Gingival displacement is an important procedure with fabricating indirect restorations. Gingival displacement is relatively simple and effective when dealing with healthy gingival tissues and when margins are properly…