Abdelrahman Al-Duqi, Fatma Abdelgawad And Nevine Waly,

ABSTRACT
Background: White Spot Lesions (WSLs) Usually Occurs As A Side Effect Of Comprehensive Orthodontic Treatment. The Prevalence Of WSLs Is Very High On Debonding Although Many Attempts Are Performed For Prevention. Many Agents Are Frequently Used For The Remineralization Of WSLs Such As Fluoridetoothpastes, Fluoridevarnishes, And Fluoridemouth Rinses. However, These Arrested Lesions May Persist Lifelong, Exhibiting A White Colour, Or Might Become Yellowish Or Dark Brown In Colour As A Result Of Exogenous Stain?s Uptake. Thus, The Present Study Was Designed To Evaluate Postoperative Stain Following Casein Phosphopeptide-amorphous Calcium Phosphate (CPP-ACP) Varnish Versus Tricalcium Phosphate (TCP) Varnish On Postorthodontic WSLs. Methodology: The Study Included Patients Who Developed Multiple Decalcifiedenamel Lesions After Fixedorthodontic Therapy, Exhibiting At Least 2 WSLs In Buccal Surface Of Teeth And No History Of Any Allergy To Fluorideor Other Ingredients In The Varnish. The Study Population Was Divided Equally Into Two Groups Using The (CPP-ACP Varnish And TCP Varnish). The Effect Of Both Materials On Staining The Tooth Surface And Gingivitis Were Evaluated During Follow Up Period.

Results: The Study Population Consisted Of 20 Patients Mean Age In Group (I) Was (14.90?0.99) And In Group (II) It Was (14.60?1.37) (15 Females, 5 Males; 194 Affected Teeth). At 6 Months, Postoperative Staining Showed No Statistically Significantdifference Between Both Groups (p=0.350). Postoperative Gingivitis Showed No Statistically Significant Diference Between Both Groups (p=1).

Conclusions: Postoperative Staining Can Occur During Treatment Of WSLs As A Side Effect Of Fluoride Varnish Denoting Remineralization, Or Exogenous Stains