Introduction. Irreversible changes in bone mass and structure of the masticatory system occurring in patients with osteoporosis affect the results of prosthetic treatment and many patients suffer due to stomatopathy symptoms. Laser therapy has an anti-inflammatory, analgetic, and anti-edematous effect. Aim of the study. The aim of the study is to evaluate the effectiveness of laser therapy in the elimination of prosthetic stomatitis symptoms in a group of female patients with osteoporosis and unfavourable prosthetic foundation conditions. Material and methods. The study concerned two groups of patients (20 women); one with osteoporosis or osteopenia and the other healthy group with an unfavourable state of prosthetic foundation. Prosthetic treatments were performed. Patients were asked to assess the presence of pain. A clinical assessment of the state of the prosthetic foundation was performed. As an additional comprehensive treatment biostymulation laser therapy was performed using a Doris CLT-1106 laser. Results. The study revealed a reduction of pain and prosthetic stomatitis symptoms in both groups. A regeneration of tissues in the prosthetic foundation was observed. The questionnaire study confirmed the positive effects of laser therapy. The functional aspects of prosthetic appliances in patients with osteoporosis were rated as satisfactory.

Key words: Low Level Laser Treatment (LLLT), denture stomatitis, osteoporosis.