Malocclusion
Conditions
Interventions
Group 1 - Experimental Orthopedic Group (GEO): 17 children, Maxillary Rapid Expansion (MRE) treated with modified Haas. group 2 - Continuous Force Experimental Group (GEFC): 17 children treated with f
Procedure/surgery
Sponsors
Faculdade de Odontologia da Universidade Federal do Rio Grande do Sul
Faculdade de Odontologia da Universidade Federal do Rio Grande do Sul
Eligibility
Inclusion criteria
Inclusion criteria: Inclusion criteria common to all groups: children about 9 years of age with intact primary canines and molars; without prior orthodontic interventions; with preventive / interceptive orthodontic needs or space supervision. Participants may not have chronic or systemic diseases that affect dental resorption or formation.
Exclusion criteria
Exclusion criteria: Exclusion criteria: patients with chronic or systemic diseases that affect dental resorption or formation, participants with previous orthodontic treatment, because the pattern of dental resorption may be altered and / or participants with exfoliated canines or primary molars.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To evaluate the pattern of root resorption rate / speed of primary teeth, through the comparison of panoramic radiographs (baseline and after 1 year of treatment), from the measure of root resorption (quantitative) and scores (qualitative) | — |
Secondary
| Measure | Time frame |
|---|---|
| To evaluate the influence of root resorption of primary teeth on the formation/eruption of sucessor permanent, through the comparison of panoramic radiographs (baseline and after 1 year of treatment), assessing root formation of permament teeth (Nolla stage) and measuring the distance from the cusp tip to the occlusal plan. | — |
Countries
Brazil
Contacts
Public ContactJonas Rodrigues
Faculdade de Odontologia da Universidade Federal do Rio Grande do Sul
Outcome results
None listed