Omayma Safwat, Eman Abou Ouf And Amgad EL-Sheikh,

ABSTRACT

Objectives: This Study Was Carried Out To Evaluate The Color Change, Surface Roughness, And Stain Resistance Of Artificialdemineralized Subsurface Enamel Lesion Treated By Infiltrativeresin For Three Different Time Intervals (immediate, Two Weeks And One Month). Methods: Thirty Freshly Extracted Human Anterior Teeth Were Selected To Be The Study Specimens. They Were Divided Into Three Groups, Each Of Ten Teeth. Group A1 Referred To Immediate Application Of Infiltrativeresin, Group A2 Referred To Delayed Two Weeks Application Of And Finallygroup A3 Referred To Delayed One Month Application. Assessment Of All Teeth For Enamel Color And Surface Roughness Were Done Using A Stereomicroscope For Image Analysis, Before Lesion Induction (base Line), After Lesion Induction And After Infiltrationprocedures, And Finallyafter Staining Solution Immersion For Three Different Time Durations. Prepared Demineralizing Solution Was Used To Induce Artificialdeminerialized Enamel Sub Surface Lesions. Coffee Was Selected To Be Used As A Staining Solution.

Results: A1 And A2 Showed A Significantcolor Change Compared To A3 In Color Change Measurement And Stain Resistance Evaluation While The Surface Roughness For All Groups Showed A Significant Improvement For All Interval Of TimeConclusion: Immediate Application Of Infiltrativ Resin Could Provide Better Esthetic Masking Effect Than Delayed Application While Provide A Promising Approach To Decrease The Surface Roughness Of The White Spot Lesions, Regardless Of The Timing Of Application; Whether Immediate Or Delayed Application And Showed Acceptable Stain Resistance When Exposed To An Extrinsic Staining Agent.