Class II Div 1 — MFDS Part 1 MCQ
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Correct answer: E — Increased overjet with proclined upper incisors
Class II division 1 is characterised by an increased overjet, typically associated with proclined or prominent upper incisors. This distinguishes it from Class II division 2, in which the upper central incisors are retroclined. A reverse overjet or anterior crossbite is characteristic of a Class III incisor relationship, while a normal overjet is not Class II. The molar and skeletal relationships must be recorded separately: a Class II division 1 incisor relationship is commonly associated with a Class II molar relationship or mandibular retrusion, but neither is required to define the incisor division itself.
Reference: Patel A, Tadinada A. Orthodontics, Malocclusion. StatPearls, updated 2023. https://pubmed.ncbi.nlm.nih.gov/37276298/