Objective To study aesthetic effect of removable cosmetic resin veneer on the correction of heavy maxillary lateral incisor crossbite. Methods Eighteen appropriate volunteers with maxillary lateral incisor crossbite were corrected by removable cosmetic resin veneer. The effect was evaluated by subjective and objective satisfactory degree. Results All 18 patients treated with this method were satisfied with the results. Conclusion The effect of the aesthetic restoration on individual anterior tooth crossbite in adults is acceptable.