Dentist man conduct is reconstructing patient’s tooth where you installed cofferdam. With help of restoration, dentist causes patient’s teeth in original form, regain form, color, and other components. Perfect effect will allow you to achieve composite materials that will be used in accordance with special technologies. On oral cavity of patient a dental dam is applied, it protects other teeth from polymerization process. Nurse in blue gloves next to holds ready a polymerization apparatus.