The effects of a newly designed stepwise functional appliance on growth and development in Class II mandibular deficient patients.

The effects on growth and development of a newly designed stepwise functional appliance in Class II mandibular deficient patients.

Status

Not yet recruiting

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12610000298011

Enrollment

Registered

2010-04-13

Start date

2010-04-01

Completion date

Unknown

Last updated

2020-01-13

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

Conditions

None listed

Brief summary

The purpose of this study is to assess a new orthodontic appliance which moves the lower jaw forward in a stepwise fashion. It is intended that the orthodontic appliance will be more comfortable than other appliances as it is less bulky and will result in a better physiological response because of the stepwise advancement of the lower jaw.

Interventions

The device is a functional applicance made from a stainless steel casing and acrylic which houses a small magnet. The device is cemented onto the occlusal surfaces of the posterior teeth and with the use of magnetic forces moves the lower jaw forward. The amount of movment of the jaw is determined by another magnetic plate which is designed so that the magnet is placed at 3mm intervals which will act to move the lower jaw forward in 3mm incremental steps. The device is worn in the mouth for 9 mo

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

12 Years to 14 Years

Healthy volunteers

Yes

Inclusion criteria

1. Aged between 12 and 14. 2. Have a Class II dental and skeletal relationship with mandibular deficiency 3. Decreased lower facial height 4. Permanent dentition 5. No severe posterior crowding 6. No previous orthodontic treatment, trauma and no dental or congenital anomalies 7. Good oral hygiene and no periodontal disease.

Exclusion criteria

Severe crowding

Outcome results