Non-carious cervical lesions (NCCLs) are losses of dental hard tissue located at the cementoenamel junction, without any carious origin. Their prevalence varies greatly between studies due to differing definitions, diagnostic methods, and populations studied. They present in various forms, mainly saucer-shaped or wedge-shaped. Their etiology is multifactorial, primarily involving erosion and abrasion. Occlusal stresses may also be implicated, referring to the controversial concept of abfraction. Diagnosis is based on a detailed medical history, a thorough clinical examination, and complementary assessments such as digital impressions. Management is first based on prevention and the control of risk factors. When restorative treatment is needed, composite resins are mainly recommended. Long-term success depends on a strict protocol, including surface preparation, adhesion, and moisture control. An individualized approach is essential to preserve tooth function, aesthetics, and durability.