Mandibular Expansion
Conditions
Keywords
leaf expander
Brief summary
Self-activated leaf expander versus William's expander in expansion of collapsed mandibular arch
Detailed description
The current randomized clinical study will be directed to compare the selfactivated leaf expander to William's expander for the expansion of collapsed mandibular arch.
Interventions
DEVICEself activated leaf expander
Eight patients will be treated by self-activated leaf expander that does not need activation by the patient.
DEVICEwilliams's expander
Eight patients will be treated with William's expander, where the arms of expander will be placed parallel to the line of occlusion at the middle of lingual surface of the anterior teeth with two bands on lower permanent first molars.
Sponsors
Al-Azhar University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
12 Years to 16 Years
Healthy volunteers
Yes
Inclusion criteria
* An age from 12-16 years. * Low to average facial vertical pattern. * A mild to moderate crowding in mandibular arch with reduced transverse dimension which require non extraction orthodontic approach. * Similar amount of crowding on each side of the mandibular arch. * No previous orthodontic treatment. * Good oral and general health.
Exclusion criteria
* Severe crowding. * Steep mandibular plane. * Asymmetric crowding on both sides of the arch. * Shifting of mandibular dental midline. * Impacted lower 2nd premolar.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intercanine width | 6 months | comparing the selfactivated leaf expander to William's expander for the expansion of collapsed lower arch by CBCT mandibular arch. |
Countries
Egypt
Outcome results
None listed