Orthodontics — Key differences for NEET MDS
Neural growth first to complete by age 6. Lymphoid exceeds adult size then decreases teenager. Genital growth late pubertal spurt. Scammon growth curves four types. CVM cervical vertebral maturation CS3-CS4 = peak growth. Hand wrist radiograph for skeletal maturity. Functional matrix theory Moss. Sutural growth theory Sicher.
📖 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 Growth & Development and Retention & Relapse in Orthodontics is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.