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Treatment of skeletal class III malocclusions with temporary anchorage devices and class III elastics

The effect of skeletal anchorage with temporary anchorage devices and class II elastics versus conventional extraoral headgear therapy on the degree and time to skeletal change in children with a skeletal class II malocclusion and a retrusive maxilla

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12610000220066
Enrollment
30
Registered
2010-03-17
Start date
2010-05-01
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 primary purpose of the study is to develop an alternative to the conventional facemask protraction therapy in the treatment of skeletal class III malocclusion. The hypothesis is that the treatment of skeletal class III malocclusions with miniscrews and intraoral elastics will produce a more profound skeletal change in less time than the conventional therapy.

Interventions

The participants will have miniscrews placed into their upper and lower jaws. These will then be loaded with class III elastic bands. The miniscrews will be placed under local anaesthetic.This procedure will take approximately 30 minutes. The treatment affects of this will be compared after 10 months of treatment to assess how much protraction of the maxilla has occured.

Sponsors

Australian Society of Orthodontists
Lead SponsorCharities/Societies/Foundations

Study design

Allocation
Non-randomised trial
Primary purpose
Treatment

Eligibility

Sex/Gender
All
Age
9 Years to 13 Years
Healthy volunteers
Yes

Inclusion criteria

Children between the ages of 9 and 13 years Skeletal class 3 malocclusions with retrusive maxillae with their lower canines erupted

Exclusion criteria

Lower permanent canines have not erupted Patient above 13 years old with fusion of their circummaxillary sutures

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026