Purpose of the post treatment retention of an orthodontic case is:

 # Purpose of the post treatment retention of an orthodontic case is:

A. To allow bony changes

B. To prevent tongue thrusting

C. To encourage the space closure

D. To let the patient get used to the new functional position of the teeth

The correct answer is D. To let the patient get used to the new functional position of the teeth

The purpose of post-treatment retention of an orthodontic case is to let the patient get used to the new functional position of the teeth. After completing orthodontic treatment, the teeth are in a new position, and the surrounding bone and soft tissues need time to adapt to this new position. During the retention period, the teeth are held in place while the surrounding structures adjust to the new position of the teeth. This helps to ensure the long-term stability of the treatment results. The retention period also allows the patient to become accustomed to the new position of their teeth and develop new habits such as proper oral hygiene practices and speech patterns.