What is the maximum lip retraction that can be achieved as an outcome of Class I extraction?

Which of the following are valid treatment options to address skeletal problems?

In Class I extraction cases, why is lip retraction typically limited to 2-3mm even when incisors are retracted further?

How much is the limit for anterior movement of the lower incisors in order to minimize relapse?

In order to eliminate black triangles, where should enamel be removed?

There are three ways to level curve of spee. Which one requires growth?

When is tooth extraction almost always required according to contemporary extraction guidelines?

Intercanine dimensions increase a person ages. There is more opportunity to expand the mandibular dental arch transversely than anterioposteriorly

A patient comes into your office and presents in your office with U1 to NA 30 degrees and lower incisors to NB 30 degrees, SNA 83°, SNB of 71°, no crowding. CC: The patient stated in her own words “I don’t like my profile of my face I want to change it” BP: 120/80. In the medical history she is taking fish oil supplements daily, a multi vitamin and acetaminophen once a month. Dental history she has all 8’s extracted. Which of the following is the most appropriate non compensatory treatment plan?

In the context of dental crowding, which factors influence the decision to extract teeth or expand the arch? choose 2 options