Ortho vs Conservative — Key differences for NEET MDS
Most common relapse = lower anterior crowding. Bonded retainer = permanent fixed retainer. Hawley retainer = removable with labial bow. Circumferential supracrestal fiberotomy prevents rotational relapse. Vacuum formed retainer = Essix = clear overlay. Relapse causes: late mandibular growth, soft tissue pressure, periodontal fiber recoil.
📖 Read full notes →Bis-GMA = most common resin matrix = Bowen resin. Hybrid composite = best overall properties. Microfill = best polish smoothest surface. Nanofill = latest generation. Depth of cure = 2mm per increment. C-factor = bonded to unbonded surface ratio. Higher C-factor = more polymerization stress. Camphorquinone = photoinitiator blue light activated.
📖 Read full notes →NEET MDS frequently tests the ability to differentiate between related topics. Understanding the key differences between Retention & Relapse and Composite Resins in Ortho vs Conservative is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.