Orthodontic Diagnosis and Treatment Planning Flashcards

Cervical vertebral maturation (CVM) staging on a cephalogram is used to assess:

Answer: Skeletal maturity and growth timing

CVM staging estimates skeletal maturity to time growth-modification treatment.

In a patient with a transverse maxillary deficiency and bilateral posterior crossbite, the treatment of choice is often:

Answer: Maxillary expansion

Maxillary expansion corrects a narrow maxilla causing bilateral posterior crossbite.

The interincisal angle is formed between the long axes of the:

Answer: Maxillary and mandibular incisors

The interincisal angle is measured between the long axes of the upper and lower incisors.

A patient reports clicking and limited opening; treatment planning should include evaluation of:

Answer: Temporomandibular joint status before active mechanics

TMJ signs and symptoms must be assessed and stabilized before beginning orthodontic mechanics.

Which of the following most increases the risk of external apical root resorption during treatment?

Answer: Prolonged heavy forces and long treatment duration

Heavy continuous forces and extended treatment time increase root resorption risk.

The primary goal of retention after active orthodontic treatment is to:

Answer: Maintain corrected tooth positions and allow tissue reorganization

Retention holds teeth while periodontal and gingival tissues reorganize, preventing relapse.

When planning treatment for a congenitally missing maxillary lateral incisor, the two main options are:

Answer: Space closure with canine substitution or space opening for a prosthesis

Missing lateral incisors are managed by closing the space with canine substitution or opening it for a restoration.