ong term biomechanical effects of bimaxillary transverse expansio

• Conditions: anterior crowding; transversal small maxilla/mandible; 10019190

• Registration Number: NL-OMON36561
• Lead Sponsor: Erasmus MC, Universitair Medisch Centrum Rotterdam

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Last Update Posted: 29 April 2024

Recruitment & Eligibility

• Status: Pending
• Sex: Not specified
• Target Recruitment: 40

Inclusion Criteria

Criteria 1 and/or 2:
1. Maxillary discrepancy (uni- or bilateral crossbite, maxillary anterior and/or posterior crowding, buccal corridors), treated with SARME, > 3 years ago.
2. Mandibular discrepancy (mandibular anterior and/or posterior crowding, uni- or bilateral crossbite) , treated with MMD, > 3 years ago.;- Patients are at least 18 years
- Complete records and availability of anterior-posterior cephalogram and dental casts (pre-operative and 1-year post-operative)

Exclusion Criteria

Congenital (craniofacial) deformity patients
Incomplete records, unavailability of anterior-posterior cephalograms or dental casts.
History of radiation therapy in the area of interest
Under 18 years
Mental retardation

Study & Design

• Study Type: Observational invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Difference in inter canine (of the mandible MMD) and inter first molar (of the<br /><br>maxilla SARME) distance measured on dental casts. A significant amount of<br /><br>decrease between T1 and T2 of inter canine (MMD) and inter first molar (SARME)<br /><br>will be defined as relapse. </p><br>