NCT06502886

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

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 24 (estimated)
• Sponsor: Cairo University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

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

Detailed description

Retention is necessary to be done after orthodontic treatment. It aids to prevent the tendency for relapse of teeth toward their pretreatment position. Fixed or removable retention appliances can reduce the risk of relapse, but to date there is still limited evidence on treatment protocols, wearing time and duration. However, long-term retention with bonded lingual retainers is commonly recommended and often considered the gold standard (method of first choice) in orthodontic retention. Regardless of the expected benefits concerning tooth stabilization, aesthetic appearance and independency from the patient's compliance, there have been increasing numbers of reports on undesirable changes in tooth position in the presence of retainers. Since "active" lingual retainers are able to exert forces to teeth, they have been suspected of causing torque changes of adjacent incisors ("X-effect"). Therefore, several authors recommend to insert removable and fixed in both arches for maximum relapse prevention.

Conditions

• Orthodontic Appliance Complication

Interventions

Type	Name	Description
PROCEDURE	combined protocol of retention (bonded lingual retainer and vacuum formed retainers)	Combined bonded retainer and vacuum formed retainer
PROCEDURE	Bonded lingual retainer	Bonded retainer

Timeline

• Start date: 2024-03-10
• Primary completion: 2025-02-01
• Completion: 2025-03-01
• First posted: 2024-07-16
• Last updated: 2024-07-16

Locations

1 site across 1 country: Egypt