Clinical Trial: Response of Individuals With Class II Malocclusion
Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Cephalometric Indicators of Biological Responsiveness to Orthodontic Treatment of Class II/I in Growing Patients
Brief Summary: This investigation aims at distinguishing the subjects that react in a favorable way to the treatment protocol we propose for the Class II treatment
Detailed Summary:
Class II Division 1 is a prevalent malocclusion. Many methods have been utilized to correct it.
The purpose of our prospective study is to clarify the specific cephalometric indicators of biological responsiveness that lead to a successful Class II Div.1 treatment in growing individuals. These indicators will hopefully assist in the differential diagnosis of a "true" and a "pseudo" Class II, that is a masked Class I, that we presume will be relatively easy to treat and stable a treatment result.
70 -100 subjects with a Class II/I malocclusion will be recruited and treated with the exact mode of treatment. As Class II we consider the one that is a t least half molar cusp Class II. Patients will already erupted lower first premolars will be included as we presume this is the approximate time of the maximum growth spurt which we want to exploit using the functional appliance. Crowding in both arches should not exceed 4 mm so as to exclude any denoalveolar changes due to alignment. Any tooth agenesis, besides the third molars, will exclude the subject from the study. The medical history of the patient should be non-contributory regarding any hormonal abnormalities, arthritis and pain from the TMJ. Syndromic patients and those exhibiting craniofacial abnormalities will be excluded.
The skeletal age of each patient will be assessed by observing the cervical column.
Every patient will have his records taken, the latter including a lateral ceph and a panoramic x-ray. Standard intra- and extra oral pictures will be taken as well (T0).
The treatment protocol includes a first phase of 3-4 months of slow palatal expansions utilizing a removable palatal plate with a 0.
Sponsor: Aristotle University Of Thessaloniki
Current Primary Outcome: Achievement of Class I relationship [ Time Frame: 18 months ]
Original Primary Outcome: Achievement of Class I relationship
Current Secondary Outcome:
Original Secondary Outcome:
Information By: Aristotle University Of Thessaloniki
Dates:
Date Received: November 1, 2005
Date Started: October 2005
Date Completion:
Last Updated: January 18, 2012
Last Verified: January 2012
