Malocclusion
Conditions
Interventions
- Anamnesis and Clinical Examination: anamnesis through an interview with the caregivers, covering personal data, medical and dental history, eating and hygiene habits. Evaluation of oral hygiene cond
T1 - Seven days after extraction of the deciduous tooth, a new impression was made to assess the loss of space and follow-up. For patients in the Intervention Group, who will use space maintainers, in
T1.1 - consultation 10 days after the extraction of the deciduous tooth for testing and adaptation of the orthodontic bands, in addition to the transfer molding for making the space maintainer in the
Device
Sponsors
Universidade Federal de Santa Catarina
Universidade Federal de Santa Catarina
Eligibility
Age
6 Years to 9 Years
Inclusion criteria
Inclusion criteria: Age between 6 and 9 years of age; without systemic involvement; both sexes; clinical and radiographic indication of tooth extraction of upper or lower deciduous molar; voluntary; authorization of caregivers.
Exclusion criteria
Exclusion criteria: Presence of craniofacial syndromes or abnormalities; Anodontia of the permanent successor; Early loss of the deciduous canine; Multiple losses in the arch of the tooth to be extracted;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Loss of linear space at the extraction site at the evaluated times, measured in millimeters using a digital caliper in the plaster models acquired in the initial and follow-up visits (7 days, 3 months, 6 months and 1 year), considering the distal surface of the tooth, in the region of the dental equator, prior to extraction and the mesial surface of the tooth after extraction, from the finding of space loss of 1 to 1.5 mm over time in previous studies. | — |
Secondary
| Measure | Time frame |
|---|---|
| Evaluation of the intercanine width, measured in millimeters the distance between the tips of the cusps of the two deciduous canines using a digital caliper in the dental casts acquired in the initial and follow-up visits (7 days, 3 months, 6 months and 1 year), from the finding of alteration in the intercanine width in patients with early loss of deciduous molar.;Evaluation of the intercanine length, measured in millimeters with a digital caliper in the perpendicular distance between the contact point of the central incisors to the intercanine width will be measuredin the dental casts acquired in the initial and follow-up visits (7 days, 3 months, 6 months and 1 year), from the finding of alteration in the intercanine length in patients with early loss of deciduous molar.;Evaluation of the arch width, measured in millimeters with a digital caliper between the central fossae of the occlusal surface of the first permanent molars in the dental casts acquired in the initial and follow-up visits (7 days, 3 months, 6 months and 1 year), from the finding of alteration in the arch width in patients with early loss of deciduous molar.;Evaluation of the arch lenght, measured in millimeters with a digital caliper in the perpendicular distance between the contact point of the central incisors and the width of the arch in the dental casts acquired in the initial and follow-up visits (7 days, 3 months, 6 months and 1 year), from the finding of alteration in the arch lenght in patients with early loss of deciduous molar.;Evaluation of the arch perimeter, measured in millimeters with a digital caliper using the linear distance obtained from the mesial of the first right permanent molar to the mesial of the first left permanent molar passing through the central groove of the primary molars, cusp tip of the primary canines and incisal of the incisors present in the dental casts acquired in the initial and follow-up visits (7 days, 3 months, 6 months and 1 year), from the finding of | — |
Countries
Brazil
Contacts
Public ContactMaria Evangelista
Universidade Federal de Santa Catarina
Outcome results
None listed