An observational study in Maxillofacial Abnormalities, sponsored by University of Sao Paulo. Completed at 1 site in Brazil. Per ClinicalTrials.gov, last updated 2013-06-14.
Sponsored by University of Sao Paulo · Observational
The present study intends to clarify whether there is positional mandibular stability in patients to be submitted to orthognathic surgery. In case of any instability exists, it is needed to understand if this could be related to a particular type of dentofacial deformity or could have any short-term or long-term influence on outcomes of the orthognathic surgery.
Treatment of skeletal discrepancy nowadays is mainly performed by combination of clinical and surgical procedures in which orthodontics intends to align the teeth according to their respective alveolar bone and the surgical procedure - orthognathic surgery - realign the jaws in an adequate position among themselves and related to the rest of the craniofacial skeleton. Orthognathic surgery has developed throughout the years technically as well as regarding fixation devices for the operated segments, providing prediction of results with a low complication incidence. A debate point is related to the possible instability of the mandibular position as a reference for surgical planning due to its articulation with the temporal fossa, the temporomandibular joint. However, studies have shown that not always the mandible position obtained for the articulator reflects the position observed in subjects after induction of general anesthesia. Since there is no evidence that indicates that any alteration of the position of the mandible could influence the outcomes of a orthognathic surgery nor any relationship of a certain type of dentofacial deformity that would be beneficiated by an specific order of surgery or skeletal reference (maxilla or mandible), the present study intends to clarify some of these questions.
40 studies on the registry are indexed under Dentofacial Deformities; 16 are open to participants now.
This study's enrollment of 30 is below the median of 45 across 15 observational studies indexed under Dentofacial Deformities.
Browse Dentofacial Deformities studies →University of Sao Paulo is the lead sponsor of 1,035 studies on the registry; 95 are open to participants now.
Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Compared within Dentofacial Deformities, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Maxillofacial Abnormalities. The counts are of registry records indexed under each term, refreshed daily. How we classify →
Data will be obtained from subjects to be submitted to orthognathic surgery by the Department of Oral \& Maxillofacial Surgery of the Hospital Geral Universitário of the city of Cuiabá - Brazil during the period of March 2012 through March 2013. Considering the local demand, thirty subjects are expected to be included in the research.
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Exclusion Criteria:
Patients with dentofacial deformities candidate to orthognathic surgery
Variability in mandibular position for different dental occlusion registrations
Centric occlusion, maximum intercuspation and occlusion under general anesthesia
Time frame: Perioperative to orthognathic surgery
The record gives a start of Jul 2012, a primary completion of Feb 2013 and a completion of Jun 2013. It does not say whether these dates are actual or estimated.
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This study is completed, as verified in Jun 2013. You cannot join it, but the record below documents what was studied.
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