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
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
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
90
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.
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.
Cairo unversity ,Faculty of dentistry
Cairo, Egypt
RECRUITINGFailure rate( detachment rate) of fixed lingual retainer
measured by inspection of any detachment partial or complete of the fixed lingual retainer
Time frame: the patient will be inspected after applying the fixed retainer every month for 6 months
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