Color changes in white spot lesions with and without treatment with resin infiltrate versus microabrasion : In-vivo study / Mohannad Abdelhai Farag Elakabawi ; Supervised Mohammed Adel Ezzat , Mohammed Fouad Haridy

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry

This study was conducted to evaluate the effect of resin infiltration versus microabrasion on color change of demineralized enamel lesions (white spot lesions) immediately after treatment. Seventy patients were included in this study complain from white spot lesion on maxillary incisors teeth, selected from the outpatient clinic of Department of Conservative Dentistry, Faculty of Oral and Dental Medicine - Cairo University. Patients were randomly divided in to two equal groups, first group treated by application of ICON resin infiltrant (DMG America, Englewood, NJ, USA), following the manufacturers{u2019} instructions. While the second group was treated by Opalustre Microabrasion slurry (Ultradent Products Inc., South Jordan, UT, USA). Icon resin infiltrant was applied in 3 steps; Icon-Etch (15% HCl), Icon-Dry (99% ethanol) and lastly, Icon-Infiltrant was applied in 2 coats each light-cured for 40 seconds using LED light curing unit at a light curing intensity of 1200 mW/cm2. While for Opalustre Microabrasion slurry, 0.2ml was applied and micro-abraded using Opal prophy cups at 5000 rpm for 60 seconds. Color parameters (L*, a*, b*) and color difference (xE) were measured and calculated using a spectrophotometer (VITA Zahnfbrik, Bad Sackingen, Germany). The color was measured before and immediately after application of treatment. Finally clinical assessment was measured by modified USPHS system.Results:The results showed that, both resin infiltration and microabrasion were effective treatments that significantly improved the color of either demineralized or demineralized/discolored enamel lesions, through decreasing the perceptible color change to the acceptable level (xE<3.3), thus creating significant visible color improvement. However, lesions Treated by resin infiltration showed significantly better color change xE compared to that treated by microabrasion. Also, the clinical assessment of tooth surface by modified USPHS showed better results in patients treated by resin infiltration material versus microabrasion

Issued also as CD