Evaluating the adhesive performance of various orthodontic brackets on teeth affected by fluorosis using two different orthodontic adhesives that exhibit color alteration.
- Conditions
- Healthy extracted tooth
- Registration Number
- CTRI/2023/08/056863
- Lead Sponsor
- Kalka Dental College and Hospital
- Brief Summary
The success of orthodontictreatment relies on the bonding of brackets to enamel. However, bracket bondingfailure is a common issue, especially when bonding on fluorosed enamel, whichis more porous and hypomineralized. Fluorosed enamel contains acid-resistantcrystals and a higher protein content, compromising bonding. Alternativetreatments are proposed to improve bracket retention, such as intraoral sandblastingto increase surface roughness or deproteinization using sodium hypochlorite(NaOCl) to remove organic elements. The conversion of resin cement into apolymer is also important for successful bonding.
AIM AND OBJECTIVES**AIM**
The aim of thisstudy is to compare the shear bond strength of self-ligating brackets (metal& ceramic) and conventional bracket (metal & ceramic) which are bondedon fluorosed teeth.
OBJECTIVESTo investigate the effect of fluorosis on shear bond strength,etching time, adhesive remnant index score (ARI) when bonding differentorthodontic brackets on fluorosed enamel.
**METHODOLOGY**
· The sample consisted of 44human fluorosed extracted for orthodontic purposes. Teeth were stored informalin until bonding procedures.
· The sample size (n = 44) wasestimated with power analysis to provide statistical significance alpha = 0.05at an 80% power.
· 44 fluorosed teeth were dividedinto 4 groups of 11 each and bonded with different brackets.
· Before bonding, the facialsurfaces of the teeth were cleaned with a mixture of water and pumice.
· The teeth were rinsedthoroughly with water and dried with compressed air.
· Each tooth is etched with 37%phosphoric acid gel for 30 seconds. Then, all teeth will be rinsed withwater/spray combination for 30 seconds and dried.
· Polymerization of the bondingagent will be performed with a conventional LED curing light for 15 seconds forceramic brackets and 20 seconds for metal brackets.
· Before determining the shearbond strength and subsequent debonding,bonded teeth are stored in distilled water for 24 hours.
· The shear bond strength testswill be performed at a crosshead speed of 1 mm/min during debonding. Theshearing debonding force is directed occluso-gingivally and recorded in MPa.Bond strengths were compared by ANOVA test.
· A stereomicroscope at amagnification of 20x will be used to assess the amount of adhesive remaining onthe teeth and the brackets after debonding and will be scored according to theadhesive remnant index (ARI).
· If deemed, necessary changeswill be made in the best interest of the study.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Not Yet Recruiting
- Sex
- All
- Target Recruitment
- 44
1.Extracted premolar for orthodontic treatment 2.Mild to moderate fluorosis 3.4 different brackets are used for checking the bond strength 4.LED Light cure unit.
1.Excessive caries 2.Excessive attritted teeth 3.Fractured tooth 4.Teeth with abnormal morphology.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method To compare the shear bond strength of self-ligating brackets (metal & ceramic) & conventional bracket (metal & ceramic) which are bonded on fluorosed teeth 8 weeks
- Secondary Outcome Measures
Name Time Method To compare the shear bond strength of self-ligating brackets (metal & ceramic) & conventional bracket (metal & ceramic) which are bonded on fluorosed teeth 4 weeks
Trial Locations
- Locations (1)
Kalka Dental College And Hospital
🇮🇳Meerut, UTTAR PRADESH, India
Kalka Dental College And Hospital🇮🇳Meerut, UTTAR PRADESH, IndiaDr Monjeet GoswamiPrincipal investigator8584039338monu.gos36@gmail.com