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DETAILED NOTE / 09.02

Malocclusion assessment

BDS coreOrthodontics

Describe skeletal, dental and soft-tissue relationships, crowding, overjet, overbite and crossbite systematically.

On this page
01

Understand

Describe sagittal, vertical and transverse relationships separately, then tooth position, crowding, overjet, overbite and soft-tissue balance. Malocclusion can be dental, skeletal or both.

02

Assess

Examine the patient from the front and profile, then in centric occlusion and movement. Look for functional shifts and trauma risk as well as aesthetic concern.

03

Apply

A complete diagnosis directs whether treatment is interceptive, camouflage or more complex. Do not plan from one isolated measurement such as overjet alone.

04 / A CLOSER LOOK

Key distinctions

Describe the malocclusion in three planes: sagittal relationship, vertical overlap and transverse width. Add dental crowding or spacing, soft-tissue profile and any functional shift. A unilateral posterior crossbite in habitual occlusion may arise from a constricted arch and mandibular displacement; the latter can be missed unless the patient is guided gently into a different closure.

05 / IN PRACTICE

Think through a case

A crossbite disappears when the mandible is guided to a different position. The functional shift may make early intervention more valuable than the apparent tooth alignment alone.

06 / EXAM PITFALL

The distinction to remember

Do not describe only an Angle class; record transverse, vertical and soft-tissue findings.

07

Test your recall

What is the difference between overjet and overbite?

Show answer
MODEL ANSWER

Overjet is horizontal incisor relationship; overbite is vertical overlap.

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