Extrait

Background and study aims Malocclusion is a problem in the way the upper and lower teeth fit together when biting or chewing. Orthodontic treatment can be used to improve the appearance, position and function of the teeth. In the last few decades increasing numbers of adults have sought orthodontic treatment and expressed a desire for aesthetic and comfortable alternatives to conventional fixed braces. Clear aligners were introduced to answer this request. Cosmetically, invisible aligners are more appealing because they are difficult to notice, making them particularly popular among adults who wish to straighten their teeth without the use of traditional metal braces. Such aligners are also easily removed during eating and tooth brushing. However, little is known about the effects of clear aligners on the teeth and bones of adult patients treated to correct a forwarded position of the upper dental arch. The aim of this study is to find out whether it is possible to correct this type of malocclusion with clear aligners. Who can participate? Adult patients (over 18) treated with clear aligners for a forwarded upper dental arch What does the study involve? Participants undergo a profile x-ray of the head before and after their orthodontic treatment to assess the position of the teeth, jaws, skull and soft tissues. What are the possible benefits and risks of participating? Participants will benefit from the correction of their malocclusion with an aesthetic and comfortable appliance. There are no risks in participating in the study - a large number of patients have previously been treated with the clear aligners used in the study, and x-rays are always needed at the beginning and at the end of any orthodontic treatment. Where is the study run from? Two orthodontic private practices in Torino (Italy) and Vancouver (Canada), and the University of Torino (Italy). When is the study starting and how long is it expected to run for? March to September 2015 Who is funding the study? Investigator initiated and funded Who is the main contact? Dr Tommaso Castroflorio ([email protected]) Dr Andrea Deregibus ([email protected])

Critère d'inclusion

• Skeletal Class I or Class II malocclusion and a bilateral end-to-end class II molar relationship

Liens

• isrctn
• ictrp