Abstract: Device for dentistry treatments having a photodiagnosis unit for performing photodiagnosis of a portion of gingival tissue, a temperature measurement unit for measuring the temperature of the portion of gingival tissue, a photoablation unit for performing photoablation of part of the portion of gingival tissue, a phototherapy unit for performing photodynamic and/or photoinductive therapy of the portion of gingival tissue, a control unit configured to acquire, by means of the photodiagnosis unit and the temperature measurement unit, information relative to the state of the portion of gingival tissue, and to control operation of the photoablation and phototherapy units according to the information acquired.