Randomised Clinical Trial on 30 Class Lll Patients on Two Groups Each Group Consist of 15 Patient to Compare Between Face Mask and Ertty Appliance in Treatment of Skeletal Class Lll Deficient Maxilla.Acone Beam ct to Every Patient Before and After Treatment and a3D Ceph Traced to Every Patient.

Comparison Berween Face Mask and Ertty Appliance in Treatment of Growing Patients With Deficient Maxilla

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07798791

Enrollment

Registered

2026-09-01

Start date

2023-04-01

Completion date

2024-12-30

Last updated

2026-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Skeletal Class III Malocclusion

Brief summary

Randomised clinical trial on 30 class lll patients on two groups each group consist of 15 patient to compare between Face mask and Ertty Appliance in Treatment of skeletal class lll Deficient maxilla.acone beam ct to every patient before and after treatment and a3D ceph traced to every patient to compare the skeletal and dental effect of every applliance

Interventions

DEVICEProtraction of maxilla using face mask appliance

Protraction of maxilla using face mask appliance and compare the result with other group

DEVICEProtraction of maxilla using Errty Gap appliance

Protraction of maxilla using Errty Gap appliance and compare the result with another group

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

8 Years to 12 Years

Healthy volunteers

Inclusion criteria

* skeletal class lll patients with Deficient maxilla

Exclusion criteria

Free from any medical disease No previous orthodontic treatment

Design outcomes

Primary

Measure	Time frame
Sagital position of maxilla after facemask treatment	9 months of treatment
Sagital position of maxilla after Ertty Gap treatment	9 months to complete treatment

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 2, 2026