Early Treatment
Two-Phase Orthodontics:
A Special Kind of Dentofacial Orthodontic/Orthopedic Treatment
FIRST-PHASE TREATMENT (INTERCEPTIVE)
The goals of the first phase of treatment are:
- To develop both the upper and the lower jaws sufficiently to accommodate all of the permanent teeth.
- To correctly relate the upper and lower jaws to each other.
Children sometimes exhibit early signs of jaw problems as they grow
and develop. An upper or lower jaw that is growing too much or not
enough, or is too wide, too narrow, or crooked can be recognized at an
early age. If children over four years of age have these jaw
discrepancies, they are usually candidates for early
orthodontic/orthopedic evaluation and treatment.
Because children are growing rapidly, they can benefit enormously
for an early (interceptive) phase of orthodontic/orthopedic treatment.
Orthodontic appliances can be used to correct the jaw shape and direct
the growth toward an ideal relationship between the upper and lower
jaws. A good foundation can be established, thereby providing adequate
room for eruption of all permanent teeth.
Early interceptive treatment can prevent:
- The later removal of permanent teeth to correct overcrowding
- Surgical procedures to align the upper and lower jaws
Interceptive treatment can also decrease the time necessary for the
second phase of treatment. Leaving a maloclussion untreated until all
of the permanent teeth erupt could result in a jaw discrepancy too
severe to allow achievement of an ideal result with braces alone.
Orthodontic/orthopedic records will be necessary to determine the
diagnosis, treatment plan, type of appliance needed, duration of the
treatment, and frequency of visits. Records consist of models of the
teeth, radiographs, photographs, and clinical evaluation.
INTERMEDIATE RETENTION PERIOD
During this period the remaining permanent teeth are allowed to
erupt. Retention and/or tooth guidance appliances may be recommended at
the end of the first phase.
Oftentimes retainers may be used, however, usually for only a short
period, as they may interfere with the eruption of the adult teeth. In
this case, it is best to allow existing permanent teeth some freedom of
movement while final eruption of teeth takes place. A successful first
phase will have created enough room for the teeth to find an adequate
eruption path and prevent possible problems.
It is important to understand that at the end of the first phase of
treatment, teeth are not in their final positions. This will be
determined and accomplished in the second phase of treatment
(corrective).
Selective removal of certain primary (baby) teeth may be in the
best interest of enhancing eruption during this resting phase. Should
this be necessary, you will be consulted and a letter of recommendation
will be sent to your dentist. Periodic recall appointments for
observation will continue to be necessary throughout this intermediate
phase on a four to six month basis.
Occasionally, when a patient is treated with two-phase treatment,
the permanent teeth erupt more rapidly than anticipated. Should this
occur, the parents will be advised and the patient will continue
directly into the second phase of treatment without removal of the
orthodontic appliances.
SECOND PHASE TREATMENT (CORRECTIVE)
Each tooth has an exact location in the mouth where it is in
harmony with the cheeks, tongue, jaws, jaw joints, and other teeth.
When this equilibrium is established, the teeth will function together
properly. With good home care and retainer wear, your teeth should stay
healthy, stable, comfortable, and look attractive. This is the goal of
the second and corrective phase of treatment.
At the beginning of the first phase, orthodontic records were made
and a diagnosis and treatment plan were established. Certain types of
appliances were used in the first phase, as dictated by the problem.
The second phase is indicated when most of the permanent teeth have
erupted, and usually requires braces on all of the teeth for
approximately 12-24 months. Retainers are worn after this phase to hold
the teeth in their new, corrected position.
ADVANTAGES
The two-phase orthodontic/orthopedic treatment is a very
specialized process that encompasses jaw and facial changes
(orthopedics) and tooth straightening (orthodontics). The emphasis
today on living longer, staying healthy, and looking attractive requires
optimum treatment results. The advantage of two-phase treatment is to
maximize the opportunity to accomplish the ideal, healthy, functional,
aesthetic, and comfortable result that will remain stable.
The disadvantage of waiting for complete eruption of the permanent
teeth and having only one phase of treatment is the possibility of a
compromised result that may not be functionally healthy or stable, and
may require preventable adult tooth extractions or jaw surgery.
We certainly hope this synopsis has helped you to understand our "two-phase" philosophy. Please do not hesitate to ask us any questions
that may assist you in understanding our treatment concepts.
As a side note, Dr. Feldman and his assistant, Ellen, produced the "Two-Phase" brochure, which outlines this treatment modality in 1993,
and it is currently the only brochure available. It is widely used by
orthodontists and pediatric dental colleagues around the world. Almost
one million have been produced.