Primary crowding in the mixed dentition
Conditions
Interventions
a sample of 40 patients from 7 to 11 years old, with primary crowding will be allocated randomly into two of experimental groups: Group A-20 patients treated with invisible aligners
and Group B-20 patients treated fixed partial 4 x 2 mechanical appliances. Dental digital models will be obtained in T1 (before treatment) and T2 (after removing the devices) and the treatment time wi
Device
Sponsors
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Faculdade de Odontologia de Bauru/FOB/USP
Eligibility
Age
7 Years to 11 Years
Inclusion criteria
Inclusion criteria: 7 to 11 years old, mixed dentition phase, with definitive primary crowding of at least 3mm
Exclusion criteria
Exclusion criteria: Presence of agenesis of one or more upper incisors, need for the use of extraoral or extraction mechanics, presence of caries lesions, history of orthodontic treatment, cleft lip and palate, syndromes or any type of systemic or neurological alteration that makes it impossible to perform interventions and presence of white spot lesion or caries already established.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary anterior and superior crowding correction in the mixed dentition - at least 2mm Little's index change. | — |
Secondary
| Measure | Time frame |
|---|---|
| Better white spot lesion prevention during the appliance use - search for ICDAS difference in the initial and final exams, comparing a fixed and a removable appliance. | — |
Countries
Brazil
Contacts
Public ContactVinicius Augustus da Silva
Faculdade de Odontologia de Bauru/FOB/USP
Outcome results
None listed