Materials vs OMDR — Key differences for NEET MDS
Feldspathic porcelain = most esthetic weakest most translucent. Leucite-reinforced = IPS Empress pressable. Lithium disilicate = IPS e.max most popular all-ceramic. Zirconia = strongest ceramic = opaque = posterior crowns. CAD-CAM = computer-aided design manufacturing. Porcelain fused to metal = PFM = most common fixed prosthesis historically. Metal-ceramic bond = oxide layer.
📖 Read full notes →OPG = orthopantomogram most common extraoral radiograph. Bisecting angle technique causes foreshortening or elongation. Paralleling technique = more accurate positioning = XCP holder. CBCT = cone beam CT = 3D imaging = gold standard implants TMJ. kVp controls quality and contrast. mA controls quantity and density. ALARA principle = as low as reasonably achievable.
📖 Read full notes →NEET MDS frequently tests the ability to differentiate between related topics. Understanding the key differences between Dental Ceramics and Radiographic Techniques in Materials vs OMDR is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.