Comparative Assessment of Failure Rate of Fixed Lingual Retainer Between Two Types of Light Cured Resin Composite

Comparative Assessment of Failure Rate of Fixed Lingual Retainer in Finished Orthodontic Cases Between Two Types of Light Cured Resin Composite. A Randomized Clinical Trial

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05660668

Enrollment

Registered

2022-12-21

Start date

2022-11-01

Completion date

2023-08-01

Last updated

2023-01-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontic Retainer

Brief summary

The study will be performed on human subjects with finished orthodontic treatment to see the failure rate(detachment) of fixed lingual retainer between two types of light cure resin composite

Detailed description

The study consists of two groups, the intervention involve performing bonding of fixed lingual retainer with light cured composite Transbond LR which is manufactured specific for the fixed lingual retainer while the control group involve bonding of fixed lingual retainer by light cured composite Transbond XT with follow up every month for 6 month to see the failure rate(detachment) between the two types of composite

Interventions

OTHERTransbond LR

cleaning the lingual surface using oil free pumice then apply acid etch 35% phosphoric acid for 20 second then rinse then Transbond LR will be applied directly on the fixed retainer and lingual surface of the teeth then light cured.

OTHERTransbond XT

cleaning the lingual surface using oil free pumice then apply acid etch 35% phosphoric acid for 20 second then rinse then Transbond XT will be applied directly on the fixed retainer and lingual surface of the teeth then light cured.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Healthy volunteers

Yes

Inclusion criteria

* Patient at the end of an orthodontic treatment requiring the subsequent application of a lingual and palatal fixed retainer * good oral hygiene * medically free

Exclusion criteria

* Facial trauma * onychophagia * habit of biting pencils or pens * tooth mobility

Design outcomes

Primary

Measure	Time frame	Description
Failure rate( detachment rate) of fixed lingual retainer	the patient will be inspected after applying the fixed retainer every month for 6 months	measured by inspection of any detachment partial or complete of the fixed lingual retainer

Countries

Egypt

Contacts

Primary ContactMohamed Saied, BDS

mohamedsaied@dentistry.cu.edu.eg0021003945733

Backup ContactHeba Dehis, lecturer

heba.dehis@dentistry.cu.edu.eg0021020490611

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026