CompletedNot Applicable

Cephalometric Evaluation of a Clear Mandibular Advancement Appliance Based on the Twin-block Design

20 participantsStarted 2016-09-20

Plain-language summary

This study evaluates the cephalometric effects of a clear mandibular advancement appliance for the treatment of skeletal class II growing patients suffering from mandibular deficiency.

Who can participate

Age range8 Years – 12 Years

SexFEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

✓. Gender: Female subjects.
✓. Chronological age: All recruited subjects were between the ages of 8-12 years.
✓. Anteroposterior skeletal relationship: Subjects with skeletal Class II malocclusion with normal maxilla and retrognathic mandible were selected. This was confirmed using lateral cephalometric radiographic analysis with the following parameters: decreased effective mandibular length (Co-Gn) according to McNamara composite , SNB\<78, SNA=82+2.
✓. Dental characteristics:
✓. Skeletal maturation stage: The growth stage for all subjects was selected to be before or at the prepubertal growth spurt. This was confirmed by cervical vertebral maturation analysis from the lateral cephalometric radiograph. The cervical vertebrae maturation stage required was Cervical Vertebrae Maturation stage 2-3 according to the cervical vertebrae maturation index by Baccetti et al. allowing sufficient time before the end of the growth spurt.
✓. No previous history of orthodontic treatment.
✓. Absence of systemic diseases affecting growth or craniofacial development. -

What they're measuring

Effective Mandibular Length

Timeframe: 12 months

Mandible to cranial base

Timeframe: 12 months

Effective maxillary length

Timeframe: 12 months

Maxilla to cranial base

Timeframe: 12 months

Trial details

NCT IDNCT03824574

SponsorAin Shams University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2017-12-15

View on ClinicalTrials.gov More Skeletal Malocclusion trials

Who can participate

Age range8 Years – 12 Years

SexFEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

✓. Gender: Female subjects.
✓. Chronological age: All recruited subjects were between the ages of 8-12 years.
✓. Anteroposterior skeletal relationship: Subjects with skeletal Class II malocclusion with normal maxilla and retrognathic mandible were selected. This was confirmed using lateral cephalometric radiographic analysis with the following parameters: decreased effective mandibular length (Co-Gn) according to McNamara composite , SNB\<78, SNA=82+2.
✓. Dental characteristics:
✓. Skeletal maturation stage: The growth stage for all subjects was selected to be before or at the prepubertal growth spurt. This was confirmed by cervical vertebral maturation analysis from the lateral cephalometric radiograph. The cervical vertebrae maturation stage required was Cervical Vertebrae Maturation stage 2-3 according to the cervical vertebrae maturation index by Baccetti et al. allowing sufficient time before the end of the growth spurt.
✓. No previous history of orthodontic treatment.
✓. Absence of systemic diseases affecting growth or craniofacial development. -