November 2nd, 2018
WHEN UPPER AND LOWER DENTAL MIDLINES do not line up and the lower jaw moves to the side on closing, these are signs of a bite functional shift.
When The Upper Arch Is Too Small For The Lower...
When the upper arch is too narrow or too small for the lower jaw, the lower jaw is forced to move to the side when closing. The unwanted movement, called a functional shift, temporarily relieves discomfort by creating a maximum tooth biting surface for chewing. The unnecessary jaw movement can be eliminated by upper arch expansion and comprehensive orthodontic treatment.
The Imbalance Can Be Fixed
The upper jaw may also be too small for the face and the lower jaw. This is called maxillary deficiency. The backward position of the upper jaw can be corrected with Class III rubber bands, reverse pull headgear, or an upper jaw surgical advancement procedure.
This case was treated by board certified orthodontist Dr. Ann Marie Gorczyca of Gorczyca Orthodontics in Antioch, California.
If you have questions about midlines that don’t line up or a jaw functional shift, call us at 925-757-9000. Visit us at www.clubbraces.com.
Straight dental midlines are important. Eliminate your bite functional shift to get your smile into high gear.
Top image used under CC0 Public Domain license. Image cropped and modified from original.
The content on this blog is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of qualified health providers with questions you may have regarding medical conditions.
September 15th, 2016
WHEN UPPER TEETH are behind lower teeth with front tooth crossbite, often there is small upper jaw. A true upper jaw deficiency can be detected early in growing children. As soon as the permanent six year molars come into the mouth, a small upper jaw can be treated by a reverse pull headgear. This type of growth modification treatment with a headgear is best completed by age 15.
Reverse Pull Headgear Can Help A Growing Child's Bite
A reverse pull headgear, also known as a Delaire-type facemask, offers growth stimulation at the maxillary (upper jaw) sutures allowing the upper jaw to be moved forward in a growing child. Headgear treatment is often accompanied with palatal upper jaw expansion, widening the palate to produce a more ideal bite.
Most children with maxillary deficiency, small upper jaw, also have a short face height as well. The slightly downward pull of the elastics of the reverse pull headgear will also help the lower jaw grow downward and backward improving the jaw relationship from a ClassIII bite to a ClassI bite as well as improve facial appearance.
Reverse pull headgears are worn only at home. Twelve to fourteen hours of wear per day is ideal for getting results as quickly as possible.
We'd Love To Answer Your Questions
If you have questions about the need for a reverse pull headgear, call us at Gorczyca Orthodontics in Antioch, California (925) 757-9000. Find us at www.clubbraces.com. To find an orthodontist near you, visit the American Association of Orthodontists at www.mylifemysmile.org.
Don't lose the opportunity to modify growth with a reverse pull headgear. Here's to your beautiful face and smile.
August 25th, 2015
WITHIN FAMILIES, it’s obvious that facial features are hereditary. The best known example is the Habsburg Family, a royal family with large lower jaws.
Anterior crossbites, openbites, or both are seen in parents and grandparents, aunts and uncles, siblings, and cousins of large lower jaw patients. Inheritance is strong. In a recent study, the heritability of mandibular prognathism (large lower jaw) was estimated to be 0.316 and autosomal dominant, suggesting a major gene influences large lower jaw growth.
Large lower jaws are present as early as age 7. This is why when your orthodontist sees an underbite or openbite with a large lower jaw, they will do an in-depth analysis of jaw growth as well as take a careful family history for large lower jaw, called Class III skeletal malocclusion.
Genetically programmed large lower jaw growth cannot be prevented. Maxillofacial surgeons have been doing large lower jaw surgery for decades and often do several hundred per year. This surgery may be done at age 16 in females and age 21 in males. Your orthodontist can take a hand-wrist film to look at radius bone growth completion to determine the best time for orthognathic surgery (jaw surgery).
This case was treated by board certified orthodontist Dr. Ann Marie Gorczyca of Gorczyca Orthodontics, Antioch, CA. Find us at www.clubbraces.com or call us at (925) 757-9000 to schedule a complimentary jaw assessment.
Find out if you have the royal jaw. If you would like a commoner smaller lower jaw, we're here to help.