ALEXANDRINA MUNTEAN, ANCA STEFANIA MESAROS, ANCA PORUMB, STANCA CUC, MARIOARA MOLDOVAN, ADRIANA BALAN ENAMEL APPERANCE AFTER ORTHODONTIC ATTACHMENT REMOVAL IN VITRO SEM ANALYSIS The aim of this in vitro study was to assess the enamel surface appearance and Adhesive Remnant Index (ARI) after braces removal. On teeth vestibular surfaces 90 braces were bonded as follows: metallic, ceramics respectively sapphire using as bonding material Opal Seal™ (Ultradent, SUA). Teeth were divided in 3 groups (N=30) and stored for 3 months in artificial saliva, tea and Coca-Cola®. For teeth stored in tea and Coca Cola®, ARI express lower values, indicating a risk for enamel injury as fracture occurs at adhesive-enamel interface. From practical point of view, this in vitro study enhance that braces detachment, finishing and polishing are risk manoeuvres for enamel surface. Materials used for collage must present specific properties in order to reduce enamel fracture.