Therapeutic Diagnosis allows response to treatment be assessed and favourable response will have fewer extractions.
Individuals respond and act differently. What works for one, may not work for the next. If the orthodontist makes treatment decisions based on all patients will respond the same, more extractions would be requested.
In 1970 James Ackerman and William (Bill) Proffit studied Therapeutic Diagnosis and found that by taking a Therapeutic Diagnosis approach to extraction decisions, the necessity for extractions decreases by about two thirds.
Assessing an individual’s response to treatment using Therapeutic Diagnosis, Mark can often reduce the number of teeth the patient needs to have extracted and that makes Mark and the patient happy!
Other benefits to Therapeutic Diagnosis are fewer extractions resulting in broader arches allowing more dental display.