Improvement of adhesion opportunities of light-conformed one-component composite dentistry hermitics to solid tissue of the temporal tooth through the impact of the magnetic field on supply material before sealing
One of the earliest and most common forms of caries of temporary teeth is fissure caries. Clinical observations of recent years indicate that 80% of all carious cavities in children from 5 to 15 years are located in the fissures and pits. In this regard, increasing the adhesion capacity of dental materials for sealing temporary teeth fissure is an urgent problem of dentistry, as it would reduce the percentage of secondary caries. The research purpose was to evaluate the influence of the magnetic field on the adhesion of dental one-component light-curing composite sealants to the hard tissues of the temporary tooth, as well as to clarify the time of preservation of the effect of the magnetic field on the studied filling materials. The investigated filling materials: Filtek Ultimate-3M ESPE, Clinpro Sealant 3M ESPE, Filtek Bulk Fill 3M ESPE, Constik DMG was placed in a high voltage installation for composite dental materials permanent magnetic field for 20 min. at a magnetic field of 22х10 4 Amps/meter(a/m). After processing of materials by magnetic field they were used in preparation of samples for assessment of adhesion to hard tissues of temporary teeth at certain intervals - 24 hours, 96 hours, 168 hours. The results of the study and their discussion: determination of adhesive strength of the compound of light-cured single-component composite sealants with hard tissues of temporary teeth showed that after exposure to the magnetic field on the filling materials and their use for the study after 24 hours in the water, the values for the gap increased in dental sealants Filtek Ultimate 5 times In, in comparison with reference samples of sealants that were not subject to magnetic field treatment, at the same time, the increase in the adhesive ability of these materials is maintained for 4 days, and then significant differences in the adhesion of these materials with materials that are not exposed to the magnetic field are not detected. Dental sealant Filtek Bulk Fill had no significant differences in adhesive strength, both before and after magnetic field treatment.