Bond, Pair
Conditions
Brief summary
Although different materials of mandibular fixed retainer were discussed in the literature, there is contradicting evidence regarding the bond failure of Titanium fixed metal retainer, whether immediate or after 12 months. Moreover, insufficient evidence is present regarding 3D metal printed fixed mandibular retainers.
Detailed description
In recent years a new possibility is available for dental practitioners: CAD-CAM technology and 3D printing, which find their application in all aspects of orthodontics. Orthodontists are already familiar with several products that use 3D printers (i.e. invisible aligners), also known as additive manufacturing, 3D printing is a technology whereby sequential layers of material are layered on top of one another to form an object23. Two recent articles reported the fabrication of a custom lingual retainer cut from a nickel-titanium block with CAD/CAM technology and a CAD/CAM Zirconium bar as a bonded mandibular fixed retainer.
Interventions
OTHERperforated 3D printed metal fixed retainer
The key of modification is digitally designing fixed metal retainer which will be custom made for each patient, and 3D metal printing of the fixed retention wire using Metal printer instead of using generic metal wire for all patients.
Conventional fixed metal retainer will be used. Multi strand wire will be used
Sponsors
Mariam Alaa
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
15 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients with properly finished orthodontic treatment. * No sex predilection. * The presence of 4 permanent mandibular incisors and 2 permanent mandibular canines. * No active caries, restorations, fractures, or periodontal disease of previously mentioned teeth * Patients with good oral hygiene.
Exclusion criteria
* Patients with no need of fixed mandibular retention. * Enamel hypoplasia or hypocalcification of mandibular anterior teeth. * Abnormal morphology of mandibular anterior teeth * Periodontal disease that contraindicates fixed orthodontic retention. * No or poor patient's compliance \& bad oral hygiene. * Psychological problems.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Bond Failure | immediate up to 12 months | Counting number of teeth debonded immediately after placement of wire up to 12 months |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Chairside Time | Baseline | — |
| Plaque accumulation | every 3 months up to 6 months | By using Loe \& Silness plaque index to go give score for each tooth. |
| Wire breakage | every 3 months for 12 months | Through detecting (by naked eye) any breakage in fixed retainer wire intrarally. |
| Post treatment relapse | after 12 months | By using Little irregularity index to detect any teeth irregularity that may occur starting from placement of wire till 12 months. |
Countries
Egypt
Contacts
PRINCIPAL_INVESTIGATORMariam MA Elsebaey, Phd
Cairo University
Outcome results
None listed