Orthodontics — Key differences for NEET MDS
NiTi = most flexible lowest stiffness for alignment phase. Stainless steel = highest stiffness for finishing detailing. TMA = beta titanium = intermediate properties. Ideal arch wire sequence: NiTi then TMA then SS. MBT prescription most common. Roth prescription = 0 degree torque. Pre-adjusted edgewise = straight wire.
📖 Read full notes →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 →NEET MDS frequently tests the ability to differentiate between related topics. Understanding the key differences between Orthodontic Wires & Brackets and Retention & Relapse in Orthodontics is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.