Erosive tooth wear is a multifactorial cumulative lifetime process, which may lead to tooth surface loss. Acids of intrinsic and extrinsic origin are the main etiological factors. This paper focuses on preventive measures and minimally invasive restorations. The application of high fluoride, time of toothbrushing as well as the intake of erosive foodstuffs or beverages should be optimized. Sealing of the tooth surfaces and small composite fillings are minimally invasive treatments for erosive lesions. Schlagwörter: erosion, diagnosis, preparation, minimally invasive treatment