Anomalies of the relationship between the dental arches
Conditions
Interventions
Fifty patients with transverse maxillary skeletal deficiency equal to or greater than 7 mm were randomized into 2 groups called 2S and 3S. In the group 2S, the technique of surgically assisted rapid m
Sponsors
Universidade Federal de São Paulo
Universidade Federal de São Paulo
Eligibility
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: Adult patients, literate and without cognitive impairment. Present maxillary transverse skeletal deficiency equal to or greater than 7 mm. Distance between the roots of the lateral incisors and maxillary canines of at least 1.2 mm so that osteotomies could be performed if the patient was randomized to the group with 3-segment osteotomies.
Exclusion criteria
Exclusion criteria: Patients with unilateral transverse maxillary skeletal deficiency. Presence of congenital craniofacial syndromes. Surgeries previously performed on the maxilla or nose. Diagnosis of possible nasal alterations such as the deviated septum, hypertrophy of the nasal turbinates, polyps, etc. Patient who had the expander loosened during the activation or retention period. Patients who did not perform any of the postoperative exams in their respective periods of analysis.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| Outcome expected: It is expected to find an increase in the palate surface area evaluated through digitized files of plaster models of the maxilla used in a three-dimensional program (Geomagic Qualify 2013; Raindrop Geomagic, Inc, Morrisville, NC, USA).;Outcome found: An increase in the palate surface area was found postoperatively in relation to the preoperative period (p < 0.001) in both groups with no differences between them. | — |
Primary
| Measure | Time frame |
|---|---|
| Outcome expected 1: To evaluate the nasal obstruction symptoms through the application of the nasal obstruction symptoms evaluation scale (NOSE scale) applied preoperatively and up to 10 months after the surgical procedure. As it is clinical data, this outcome was considered the main outcome of the study and used for the sample calculation, requiring a total of 13 patients per study group. ;Outcome found 1: A decrease in the NOSE scale score was found between pre- and postoperative assessments in both study groups (p < 0.001), implying an improvement in nasal obstruction symptoms in a similar way in both study groups (p = 0.370).;Outcome expected 2: To evaluate the dimensions of the nasal cavity through acoustic rhinometry examination, identifying the volume and minimum cross-sectional area of the nasal cavity pre-operatively and up to 10 months after the surgical procedure.;Outcome found 2: The minimum cross-sectional area showed a non-significant increase (p = 0.203), however, suggesting important clinical relevance and together with the volume (p = 0.174) of the nasal cavities remained constant in both study groups. | — |
Countries
Brazil
Contacts
Public ContactAlexandre da Silva
Universidade Federal de São Paulo
Outcome results
None listed