Maxillary Hypoplasia
Conditions
Keywords
Transpalatal, Maxillary expansion, Tooth-borne, Bone-borne, Distractor, Tipping, Osteotomy height
Brief summary
The investigator proposes a multi-centre study to investigate tipping of teeth, bringing into consideration the height of the osteotomy line and the height and placement of the transpalatal distractor as possible factors. If tipping occurs depending on these factors, the investigator could identify the situations that cannot be straightened by the orthodontist and provide another course of action for these specific patients.
Detailed description
Surgically Assisted Rapid Maxillary Expansion (SARME) is widely accepted for the treatment of maxillary hypoplasia. The differences between SARME with a tooth-borne or a bone-borne distractor have already been extensively investigated, bringing to light that a bone-borne distractor has less negative side effects. One of the major concerns with the tooth-borne distractor is the tipping of the anchor teeth, which is bypassed by the bone-borne distractor which applies its force directly on the bone. One study investigated the tipping of teeth with a bone-borne distractor in 10 patients, showing that there was a minor change in the tooth axis. The investigator proposes a multi-center study to investigate this tipping further, bringing into consideration the height of the osteotomy line and the height and placement of the transpalatal distractor as possible factors. If tipping occurs depending on these factors, the investigator could identify the situations that cannot be straightened by the orthodontist and provide another course of action for these specific patients.
Interventions
OTHERConebeam CT
medical imaging technique consisting of X-ray computed tomography where the X-rays are divergent, forming a cone
Sponsors
Universitair Ziekenhuis Brussel
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
14 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Undergoing a surgically assisted rapid maxillary expansion with a bone borne transpalatal distractor. * Cone beam CT pre op and 3 weeks post op is available
Exclusion criteria
* Complication of the process by e.g. surgical site infection * Asymmetrical expansion of more than 3.0 mm measured at the central incisivae occurred
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Tooth axis | 3 weeks postoperatively | To investigate changes in the tooth axis of the first and second (pre-)molars bilaterally in the upper jaw before and after surgically assisted rapid maxillary expansion using a bone borne transpalatal distractor. |
Countries
Belgium
Contacts
Primary ContactVeerle Van Mossevelde, SC
Outcome results
None listed