Affiliation:
1. Pavlov First Saint Petersburg State Medical University
2. First St. Petersburg State Medical University named after. acad. I. P. Pavlova
3. First St. Petersburg State Medical University named after Academician I. P. Pavlov
4. The First St. Petersburg State Medical University named after academician I. P. Pavlov
Abstract
Subject. Today, there are many different air-powder systems (APS) for professional oral hygiene (PAH). The problem of selecting a powder for performing PPGP is still relevant.
Objectives. The aim of the study was to evaluate the effect of different air-powder systems on the structure of tooth enamel.
Matodology. The study consisted of 2 parts: experimental and clinical-laboratory. The experimental part of the study consisted in the allocation of experimental groups, their subsequent processing depending on the active component of the UPP (sodium bicarbonate, calcium carbonate, their mixture, glycine, trehalose) and study by scanning electron microscopy. Clinical and laboratory research is aimed at studying the time spent on the removal of soft pigmented plaque; the degree of cleaning of the tooth surface; the amount of powder required to perform PGPR; as well as the atomization of powder during the procedure; the traumatic effect of these systems on the structure of tooth enamel by interpreting the index of tooth sensitivity of L.Yu. Orekhova – S.B. Ulitovsky (TS-O-U index, %); and studying the average linear (Vas) velocity of blood flow in periodontal tissues using the method of Doppler ultrasound.
Results. Powders with a mixture of sodium bicarbonate and calcium carbonate have the greatest damaging effect on tooth enamel structure, and powders with trehalose and glycine have the least damaging effect. On the basis of clinical study it was revealed that powders based on trehalose and glycine have less damaging effect both on tooth enamel and periodontal tissues, which is confirmed by the index of tooth sensitivity of L.Yu. Orekhova – S.B. Ulitovsky and the results of ultrasound Dopplerography.
Conclusions. The conducted research allows recommending therapeutic dentists, periodontists, as well as dental hygienists to use glycine- and trehalose-based UPDs in their clinical practice due to their effective, safe and ergonomic use.