Since ancient times people needed to restore their teeth. Loss of tooth function and structure is mainly due to caries or trauma. With the beginning of last century, the quality of various materials used in restorative dentistry was improved. Aesthetics in dentistry is a relatively recent medical concept, which aims are to analyze the causes that can lead physiognomic dysfunction and to choose an appropriate method of treatment. The main goals of the thesis are to study the etiopathogenesis of dental-coronary lesions, indicat contraindications to restorations; the role of restoration in dental aesthetics; correlation of restorative materials with the group of treated teeth and evaluation of the effectiveness of restorations with composite materials. The essential objective of the treatment is to maintain the vitality of the pulpal organ as long as possible and to restore the dental organ with its usual physiological functions. Atraumatic restoration treatments are possible nowadays due to adhesive techniques restorations with composite materials. Composite resins allow the restoration of teeth with carious lesions or uncarious etiology, the modification of teeth position, repair chipped teeth, the elongation of the shortened teeth, restore the biting surfaces of teeth that have been worn down, etc. Regardless of the cause, the treatment technique must be applied according to the new technologies in the field of biomaterials. Composite restorative materials consist of a continuous polymeric matrix reinforced with inorganic particles. Dental composites are some of the most commonly used materials today in dental clinics, mainly used for anterior aesthetic reconstructions. In order to adapt to the particular needs of each patient, have appeared on the market numerous types of composites with different characteristics and modes of use. There are a lot of types of composites by position: anterior, posterior, fluid, universal, self-curing, orthodontic, etc; or by particle sizes: macrofills, microfills, hybrids, nanocomposites, etc. Based on the results of many dental restorations with composite materials, this method is e welcomed worldwide, as repair technique for defective restorations that can offer many more advantages to patients than teeth replacement. The repairing of direct composite restorations may e a choice when it comes to staying minimally invasive, especially when the patient’s concern is about aesthetics only.