Evaluation of The Stability of Orthodontic Treatment After First Premolar Extraction Using Combined Retention Protocol
Evaluation of The Stability of Orthodontic Treatment After First Premolar Extraction in Adult Patients Using Bonded Retainer Versus Bonded Retainer Combined With Vacuum Formed Retainer : A Randomized Clinical Trial
Cairo University
24 participants
Mar 10, 2024
INTERVENTIONAL
Conditions
Summary
The aim of this study is to compare between the stability of anterior and posterior segments in both arches using bonded lingual retainers versus a combined protocol of retention (bonded lingual retainer and vacuum formed retainers). The effect of different treatment changes achieved on the post-treatment stability will be studied in both groups. Hypothesis: No difference between BR and BR+VFR regarding the stability of anterior segment alignment and posterior segment alignment and interdigitation
Eligibility
Inclusion Criteria4
- Adult patients at the end of comprehensive orthodontic treatment after extraction of upper and lower first premolars and requiring subsequent application of a lingual and palatal bonded retainers
- Good oral hygiene
- Patients whom the pre-treatment records (models) are available
- Good finishing criteria (ABO grading system)
Exclusion Criteria4
- Non-extraction orthodontic treatment
- Poor oral hygiene
- Dental/congenital anomalies ex: Missing laterals, transposed canines, Cleft lip and palate/craniofacial syndromes
- Poor finishing criteria (ABO grading system)
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Interventions
Combined bonded retainer and vacuum formed retainer
Bonded retainer
Locations(1)
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NCT06502886