Therapeutic Diagnosis allows response to treatment be assessed and favourable response will have fewer extractions.
Individual humans respond and act differently. What works for one, may not work for the next. If the orthodontist makes treatment decisions on the basis that all patients will not respond well, more extractions must 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.
There are times where crowding is so great or a tendency for an open bite, makes extractions a preferred choice.