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INTRODUCTION: Prosthetic treatment with fixed constructions is an effective method for recovering severely destroyed teeth. The purpose of this study is to track the changes in the gingival tissues around teeth, which are prosthetically treated with different aesthetic crowns. MATERIALS AND METHODS: Eighty-two teeth were studied with 46 of them being restored with CAD/ CAM composite crowns and 36 with ready-made zirconia crowns. The assessment of the condition of the surrounding soft tissues was performed using the modified gingival index (MGI). RESULTS: Slight gingival inflammation of the severely destroyed natural teeth (MGI-1,25÷2,13) was reported, whereas after their restoration with crown constructions, healing processes and decreasing of the gingival index during the follow-up period occurred. The MGI, one year after placing the constructions, was 0÷1.44. CONCLUSION: CAD/CAM and ready-made zirconia crowns have excellent compatibility with surrounding soft tissues and do not disturb gingival health.