Phase I or Interceptive Treatment usually starts while the child has most of their baby teeth and a few of their permanent front incisors. This stage in development is usually about the age of 7. The goal of Phase I treatment is to intercept a moderate or severe orthodontic problem early in order to reduce or eliminate it. These problems include skeletal dysplasia, crossbites and crowding. Phase I treatment takes advantage of the early growth spurt and turns a difficult orthodontic problem into a more manageable one. This helps reduce the need for extractions or surgery and delivers better long term results and treatment options. Most Phase I patients require a Phase II treatment in order to achieve an ideal bite.
Phase II treatment usually occurs a number of years later. Usually we are waiting for 12-16 more permanent teeth to erupt before Phase II begins. This most commonly occurs at the age of 12 or 13. The goal of Phase II treatment is to achieve an ideal occlusion with all of the permanent teeth.