Abstract :Materials and methods of research: the results of the therapeutic efficacy of diode laser radiation with different duration of action (30 and 60 seconds) on the exposed section of dentin were studied using the example of clinical investigation of patients with gingival recession accompanied by HD. In total, 28 teeth were examined of 16 patients in two groups. The sensitivity of the dentin was evaluated with respect to the tactile (with the help of the periodontal probe when probing the dentin neck) and the cold stimulus (air stream) on a digital scale from 0 to 10 points. After each stage, the determination of the viability of the pulp by means of Electric Pulp Testing (EPT) was also performed. The digital material is processed using the conventional methods of variational statistics.
Results testify to the elimination of pain of patients of both groups in the treatment of HD using a diode laser with a wavelength of 830 nm. Moreover, the effectiveness of treatment in both groups is not accompanied by undesirable side effects, does not damage the vital activity of the pulp. This is evidenced by EPT data. However, the patients of the second group (60 sec.) after the first stage of treatment (and even a week after the initial irradiation), have a 2.7 times more effective reliable decrease of HD than in first group.