Early Treatment of Anterior Open Bite Using the Rapid Molar Intruder

Damascus University

Status: Completed

Conditions: Open Bite

Treatments: Device: Rapid molar intruder

Study type: Interventional

Funder types: Other

Identifiers

NCT05657522

UDDS-Ortho-17-2022

Details and patient eligibility

About

This study evaluated the efficacy of rapid molar intruder (RMI) in treating anterior open bite in the mixed dentition. The study sample consisted of 40 patients who had a skeletal anterior open bite. The sample was allocated randomly into two groups: the RMI group and the control group. The skeletal, dentoalveolar and soft tissue changes occurring after treatment were assessed by using lateral cephalometric images.

Full description

Many appliances have been used to treat skeletal anterior open bite (AOB) malocclusion, such as removable appliances, extra-oral appliances (vertical chin cup and vertical head gear), fixed appliances, Orthognathic surgery and functional appliances. Treatment with these appliances produces soft and hard dentofacial tissue changes. Many studies have been carried out in order to study these changes.

In this study, the investigators treated AOB using RMI. Patients were divided into two groups to evaluate the efficacy of RMI.

RMI group: Rapid molar intruder was applied. Control group: Untreated control group. In order to evaluate the changes occurring, lateral cephalometric images were taken in both groups at the beginning of the treatment (T1) and after 9 months of the first cephalograms (T2).

Enrollment: 40 patients

Sex: All

Ages: 8 to 12 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Patients in the mixed dentition
2. Chronological age between 8 and 12 years
3. skeletal class I or II malocclusion
4. Skeletal anterior open bite was assessed clinically and then confirmed radiographically: SN/GoMe was greater than 33°, MM was greater than 27
5. No general problems
6. Good oral health

Exclusion criteria

1. Presence of periodontal diseases
2. Presence of general diseases, syndromes or cleft lip and palate
3. Patients with previous orthodontic treatment

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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40 participants in 2 patient groups

Rapid Molar Intruder

Experimental group

Description:

Patients in this group will undergo the interventional procedure, which is the application of the rapid molar intruder appliance. This will help in correcting the open bite.

Treatment:

Device: Rapid molar intruder

Untreated Control Group

No Intervention group

Description:

Patients in this group will be monitored without any active treatment.