3D-Printed vs Conventional Fixed Retainers After Orthodontic Treatment | NCT07730476

NCT07730476

Overview

NCT ID: NCT07730476
Lead Sponsor: Minia UniversityOTHER
Official Title: Comparison Between Three-Dimensionally Printed Fixed Retainers Versus Conventional Multistranded Stainless Steel Fixed Retainers: Randomized Clinical Trial
Brief Summary: This randomized clinical trial aims to compare the clinical performance of two types of three-dimensionally printed fixed retainers (Cobalt-Chromium and Titanium Grade 5) with the conventional multistranded stainless steel fixed retainer following orthodontic treatment. Thirty-six participants will be randomly allocated into three parallel groups with a 1:1:1 allocation ratio. The primary outcome is post-treatment stability assessed by Little's Irregularity Index and lower arch dimensions. Secondary outcomes include bond failure rate and periodontal parameters over a 12-month follow-up period.
Conditions: Orthodontic Relapse
Malocclusion

Ages Eligible for Study: Adult (18-64)
Sexes Eligible for Study: All
Accepts Healthy Volunteers?: Yes
Eligibility Criteria: Inclusion Criteria:

Age range 21-35 years old after finishing orthodontic treatment.

Presence of all maxillary and mandibular anterior teeth with normal shape and size.

Completion of orthodontic treatment with full fixed appliances.

Exclusion Criteria:

Patients with cleft lip and/or palate or any other craniofacial syndrome

Patients with compromised oral hygiene or periodontal disease

Patients who had orthognathic surgery

Lingual appliance treatments

Enamel hypoplasia, fluorosis, active caries, restorations, or fractures in the anterior teeth

Patients who had separate arch debondings with a difference of more than 2 months in-between jaws

Central Contacts: Salma A Daabis, BDSContact
salma.daabis@pua.edu.eg+201066600270

Participant Group/Arms

Conventional Stainless Steel Fixed RetainerExperimental

Participants receive a conventional multistranded stainless steel fixed retainer bonded after orthodontic debonding.

Device: Conventional Multistranded Stainless Steel Fixed Retainer

3D-Printed Cobalt-Chromium Fixed RetainerExperimental

Participants receive a customized 3D-printed cobalt-chromium fixed retainer bonded after orthodontic debonding

Device: 3D-Printed Cobalt-Chromium Fixed Retainer

3D-Printed Titanium Fixed RetainerExperimental

Participants receive a customized 3D-printed titanium (Ti-6Al-4V) fixed retainer bonded after orthodontic debonding.

Device: 3D-Printed Titanium Fixed Retainer