Dentoskeletal Effects of Two Different Fixed Functional Appliances for Correction of Class II Malocclusion: A Comparative Clinical Study

Al-Azhar University16 enrolled

Overview

Fixed Functional Appliances comparisons in treatment of orthodontic class II malocclusion cases

Comparison between two types of fixed functional appliances, the first one is the Mandibular Protraction Appliances, while the second one was the PowerScope Appliance. the treatment duration was 6 months the patients age was considered according to Baccetti et al, CVMI 3,4

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Class II Malocclusion

Interventions

Mandibular Protraction ApplianceDEVICE

Mandibular Protraction Appliance was installed on fixed orthodontic appliance

PowerScope ApplianceDEVICE

PowerScope Appliance was installed on fixed orthodontic appliance

Eligibility

Sex: ALLMin age: 13 YearsMax age: 16 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Skeletal and dental class II malocclusion with mandibular retrognathia, SNB\>= 4. 2. Patients in cervical vertebral maturation index 3 -5. 3. Age ranged from 13-16 years. 4. Overjet ≥ 5 mm. 5. Minimum crowding in dental arches requiring no extraction of any permanent teeth (excluding third molars). 6. Good oral hygiene and general health. 7. No previous orthodontic treatment or jaw's surgery. Exclusion Criteria: * Class I skeletal malocclusion * periodontally compromised patient * patients have systemic diseases interfering with orthodontic treatment

Locations (1)

Abubakr Mohamed Fouad

Cairo, Egypt

Outcomes

Primary Outcomes

SNA angle (on Cephalometric radiograph)

Anteroposterior postition of maxilla in relation to the anterior cranial base (SN line)

Time frame: 6 months

SNB angle (on Cephalometric radiograph)

Anteroposterior postition of mandible in relation to the anterior cranial base (SN line)

Time frame: 6 months

ANB angle (on Cephalometric radiograph)

The relationaship between maxilla and mandible

Time frame: 6 months

Effective mandibular length (mm) (on Cephalometric radiograph)

the length of the mandible (change in length before and after treatment)

Time frame: 6 months

Mandibular plane angle (on Cephalometric radiograph)

the angle between inferior border of the mandible (Go Me) and the anterior cranial base (SN line)

Time frame: 6 months

Maxillary incisors inclination (angle) (on Cephalometric radiograph)

The change of maxillary incisors inclination between the long axis of most protruded upper incisors and anterior cranial base (Sn line)

Time frame: 6 months

Mandibular incisors inclination (angle) (on Cephalometric radiograph)

The change of mandibular incisors inclination between the long axis of most protruded upper incisors and anterior cranial base (Sn line)

Time frame: 6 months

Secondary Outcomes

Upper lip retrusion (mm) (on Cephalometric radiograph)

Data from ClinicalTrials.gov

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