Dental and Occlusal Stability
Conditions
Keywords
Dental stability, Occlusal stability, Retainers
Brief summary
There are several factors involved in the decision and the retention plan, such as occlusion, patient age, etiology of malocclusion, the speed of the correction, the length of the cusps and health of the tissues involved, relationships inclined planes, size of the arches, harmony of the arches, muscle pressure, interdental proximal contact, cell metabolism and atmospheric pressure. Given these concepts, we need to find grounds to enable decision making with respect to the retainer that offers the best features of containment and stability.
Detailed description
This study aims to assess the stability of tooth position and occlusal retention during treatment with two types of retainers, Essix type retainer and the retainer plate type Hawley in individuals who have completed their growth ending orthodontic treatment at the Faculty of Dentistry University of Antioquia and CES University Medellín
Interventions
DEVICEEssix retainer
The essix retainer is made in a thermoforming copolyester 0.75mm (0.30 , it processed gives a thickness of 0.015 approximately. Retainer will be used molar to molar. subjects in this arm will have this retainer for 24 hours a day for 6 months, they won´t have this device for food intake.
DEVICEHawley retainer
subjects in this arm will have the retainer for 24 hours a day for 6 months. During food intake they won´t have this device.
Sponsors
Universidad de Antioquia
CES University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
16 Years to 40 Years
Healthy volunteers
No
Inclusion criteria
* Patients who have stabilized their growth between 16 and 40 who have completed orthodontic treatment and initiate retention treatment * Who have agreed to participate in the study if elected and to sign informed consent * Residing in the metropolitan area of Medellin and have the opportunity to attend recall appointments
Exclusion criteria
* Periodontal status deteriorated * missing teeth * Cleft lip and palate * History of orthognathic surgery * History of dental or skeletal open bite * Presence of some habit oral tongue thrusting, mouth breathing, thumb sucking even after termination of orthodontic treatment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Dental stability | Up to 6 months | Dental stability will be assessed like this, models: rotation of central and lateral incisor, canine, first and second premolar, first molar on each side and each arch; and cephalometric analysis: SN-upper central incisive, FK-upper central incisive, palate plane-upper central incisive, interincisal angle, mandibular plane-lower central incisive; vertical distances: palate plane-upper central incisive, palate plane-first upper molar, mandibular plane-lower central incisive, mandibular plane-first lower molar; horizontal distances: A-Pogonion upper and lower central incisive. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Occlusal stability | Up to 6 months | Occlusal stability will be measured at the beginning and end of study through clinic exam and study models. Clinic exam: canine relations right and left, molar relations left and right, overjet, overbite, presence of anterior open bite, presence of posterior open bite. Models: upper and lower arch, upper and lower intercanine distance, upper and lower distance interpremolar, upper and lower intermolar distance. |
Countries
Colombia
Contacts
Primary ContactSandra Gómez, Orthodontist
Backup ContactAngela María Segura Cardona, PhD in Epidemiology
Outcome results
None listed