The face can be divided vertically into:

Three approximately equal thirds

The lower facial third extends from:

Subnasale to the lowest part of the chin

In the upper third of the lower facial third

At the top of the lower two-thirds

Clinically, the mandibular plane angle can be estimated by placing a finger along:

The lower border of the mandible

The upper border of the maxilla

If the mandibular border and Frankfort plane lines intersect anterior to the occiput, this suggests:

Increased mandibular plane angle and increased vertical proportions

Transverse facial proportions should be assessed from the front and also:

From above, standing behind and above the patient

Only from an intraoral photograph

Which three soft-tissue landmarks should align in a symmetrical face?

Glabella, subnasale, and porion

Both pupils, ears, and gonial angles

Soft tissue nasion, midpoint of upper lip vermilion, and chin point

Normal transverse facial proportions can be divided into approximately:

Three sections, each the width of the nose

Five equal sections, each about the width of an eye

Four sections, each the width of the mouth

Two sections, each the width of an ear

Which condition is listed as a possible cause of gross facial asymmetry?

Unilateral condylar hyperplasia

A normal smile should show the upper incisors:

Their whole height, with only the interproximal gingivae visible

Completely covered by the upper lip

With more than 5 mm of marginal gingiva

In a normal smile, the upper incisors should be:

In continuous contact with the lower lip

Close to, but not touching, the lower lip

Orthodontics — History & Clinical Examination — Part 3 (Questions 51–75)

University of Baghdad, College of Dentistry, Fifth Year, Lecture 1 & 2. Part 3 of 4. 25 single-best-answer MCQs, 1 point each. Based on the attached lecture.