Orthodontics is a specialty of dentistry that is concerned with the study and treatment of malocclusions (improper bites), which may be a result of tooth irregularity, disproportionate jaw improved bite ( occlusion ).
Definition
Also removable appliances, or "plates", headgear, expansion appliances, and many other devices can be used to move teeth. Functional and orthopaedics appliances are used in growing patients (age 5 to 14) with the aim to modify the jaw dimensions and relationship if these are altered. (See Prognathism.) This therapy is frequently followed by a fixed multibracket therapy to align the teeth and refine the occlusion.
After a course of active orthodontic treatment, patients will often wear retainers, which will maintain the teeth in their improved position while the surrounding bone reforms around them. The retainers are generally worn full-time for a short period, perhaps 6 months to a year, and then worn periodically (typically nightly during sleep) for as long as the orthodontist recommends. It is possible for the teeth to stay aligned without regular retainer wear. However, there are many reasons teeth will crowd as a person ages; thus there is no guarantee that teeth, orthodontically treated or otherwise, will stay aligned without retention. For this reason, many orthodontists recommend periodic retainer wear for many years (or indefinitely) after orthodontic treatment.
Appropriately trained doctors align the teeth with respect to the surrounding soft tissues, with or without movement of the underlying bones, which can be moved either through growth modification in children or jaw surgery (orthognathic surgery) in adults.
Several appliances are utilized for growth modification; including functional appliances, Headgear and Facemasks.
These "orthopedic appliances" may influence the development of an adolescent's profile and give an improved aesthetic and functional result.
Conditions
The most common condition that the methods of orthodontics are used for is correcting anteroposterior discrepancies. Another common situation leading to orthodontic treatment is crowding of the teeth.
Anteroposterior discrepancies
Anteroposterior discrepancies are deviations between the teeth of the upper and lower jaw in the anteroposterior direction. For instance, the top teeth can be too far forward relative to the lower teeth ("increased overjet".) The headgear is attached to the braces via metal hooks or a facebow and is anchored from the back of the head or neck with straps or a head-cap. Elastic bands are typically then used to apply pressure to the bow or hooks. Its purpose is to slow-down or stop the upper jaw from growing, hence preventing or correcting an overjet. For more details and photographs, see Orthodontic headgear.
Crowding of teeth
Another common situation leading to orthodontic treatment is crowding of the teeth. In this situation, there is insufficient room for the normal complement of adult teeth, which may require tooth removal in order to make enough room for the remaining teeth.
Diagnosis and treatment planning
In diagnosis and treatment planning, the orthodontist must (1) recognize the various characteristics of malocclusion and dentofacial deformity; (2) define the nature of the problem, including the etiology if possible; and (3) design a treatment strategy based on the specific needs and desires of the individual. (4) present the treatment strategy to the patient in such a way that the patient fully understands the ramifications of his/her decision.
Training
Orthodontics was the first recognized specialty field within dentistry. Many countries have their own systems for training and registering orthodontic specialists. A two to three year period of full-time post-graduate study is required for a dentist to qualify as an orthodontist.
Europe
In the United Kingdom, this training period lasts three years, after completion of a membership from a Royal College. A further two years is then completed to train to consultant level, after which a fellowship examination from the Royal College is sat. In other parts of Europe, a similar pattern is followed. It is always worth contacting the professional body responsible for registering orthodontists to ensure that the orthodontist you wish to consult is a recognized specialist.
United States, Canada, Australia, and New Zealand
A number of dental schools and hospitals offer advanced education in the specialty of Orthodontics to dentists seeking postgraduate education. The courses range from two to three years (with the majority being 3 years) of full-time classes in the theoretical and practical aspects of orthodontics together with clinical experience. Generally, admission is based on an application process followed by an extensive interviewing process by the institution, in order to select the best candidates. Candidates usually have to contact the individual school directly for the application process.
India
In India, many dental colleges affiliated to universities offer orthodontics as specialisation in Master of Dental Surgery ( M.D.S ) programme.The minimum qualification for M.D.S is Bachelor of Dental Surgery ( B.D.S ). The present course for MDS in Orthodontics stands at 3 years in all dental colleges in India which are recognised by the Dental Council of India. The Indian Orthodontic Society was established in 1965. The Indian Society of Orthodontics for General Practitioners (ISOGP), established in 2008, represents GP's and members from other dental specialties who practices orthodontics. ISOGP offers a Certificate Course in Fixed Orthodontics for General Practitioners in Dentistry.
See also
- Dental braces
- Dentistry
- Invisalign
- Orthodontic technology
- Fluoride therapy
References
- ^ T. M. Graber, R.L. Vanarsdall, Orthodontics, Current Principles and Techniques, "Diagnosis and Treatment Planning in Orthodontics", D. M. Sarver, W.R. Proffit, J. L. Ackerman, Mosby, 2000
External links
- Interview of Dr. Raymond Begg in the Journal of Clinical Orthodontics (September 1967)
- Begg technique
- http:
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