1610 West Yosemite, Suite #1, Manteca, CA 95337
Phone: (209) 824-7466 - Fax: (209) 824-7510
Phase I and II
Many new patients ask us what Phase I and Phase II
treatment are.  This is understandable since when
most of today’s adults had braces there was no such
thing as Phase I and II treatment.  It’s only been in
has been popular.

The easiest way to understand Phase I and II
treatment is to first understand that a correct bite
requires 2 things:  Correctly aligned teeth and
correctly aligned jaws.  
Incorrectly aligned jaws, resulting in overbites, underbites, etc. can be corrected provided the
jaws are still growing.  This occurs up until around age 12-13.  

Aligning the teeth requires that all of the permanent teeth be erupted. That usually occurs
around age 12-13.  

So if a patient has crowded teeth and incorrectly aligned jaws, it’s virtually impossible to
achieve them both in a single phase of treatment of a reasonable length, because the
window of opportunity for the one closes just as the other opens.  

Instead, we prefer to work on jaw growth sometime between 7 and 10 years old.  This is
called Phase I.  

We can then wait until after all of the permanent teeth have erupted before aligning the
teeth.  This is the Phase II part.

If a patient has crowded teeth, but correctly shaped jaws, we don’t do a Phase I.  We wait
until all of the teeth are erupted and do a single phase of treatment.
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