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Two-phase treatment consists of two separate times when a child receives orthodontic treatment.

  • The first phase begins while a child still has a mix of baby and adult teeth (7yrs-10yrs). A resting period follows.
  • The resting period can include retainers that worn by the patient while waiting for the eruption of the permanent teeth.
  • Phase two of orthodontic treatment usually begins when most or all of permanent teeth are present (Usually around 11yrs-14yrs old). The orthodontist will treat all permanent teeth to their final alignment position and bite position.


Some problems are easier to correct if found early. Early treatment can create a healthy environment for teeth growth and development and contribute to long-term stability. The first phase can prevent a problem from developing, intercept a developing problem or guide the growth of the jaw bones that support the teeth. By timing treatment to predictable stages of dental development, the orthodontist may be able to take advantage a child’s growth and development. Some problems can be treated quite well and mitigate more invasive treatment in the future.


  • Create a better environment for permanent teeth to come in
  • Create a proper relationship of teeth and jaws, so that they work correctly
  • Correct alignment of the teeth
  • Position teeth and jaws for an attractive face and profile


  • Follow your orthodontist’s instructions during both phases of treatment
  • Keep appliances, teeth and gums clean, and visit your dentist every six months for cleaning
  • Keep scheduled appointments
  • Avoid food that may damage the appliance
  • Maintain a healthy diet
author avatar
Jesus Patiño Jr, DDS, MS Orthodontist
Dr. Patiño is a Diplomate of the American Board of Orthodontics and an Assistant Clinical Professor at UC San Francisco Division of Orthodontics and owner of Precise Orthodontics.