Clinical and laboratory studies of light-curing base material for the manufacture of intraoral orthodontic devices

Abstract

To study the physical and mechanical properties of the new basic light polymer material in clinical conditions in pediatric orthodontic patients. The strength properties of 113 basic orthodontic devices made of photopolymer material without reinforcement with a screw, vestibular arch, and clasps t (55 devices, 30 of them for the upper jaw, 25 for the lower jaw) and with quartz mesh reinforcement of the base (58 devices: 30 for the upper jaw, 28 for the lower jaw) were studied in 60 children aged 3 to 12 years in the periods of temporary and removable bite. In total, breakdowns of the base in devices without reinforcement were noted in 5.5% of cases. Our experimental studies have shown a significant improvement in the strength properties (modulus of elasticity, crack resistance, bending strength, maximum bending strain) when reinforcing the base polymer quartz mesh more than times. The clinical part of the study effectively reflects the positive trends in the reinforcement of the base from. A specific symptom complex of allergic reactions when wearing removable devices made of light-curing polymer was not detected. The observations continued for two years. The obtained results of the strength properties of the reinforced base from the light-cured polymer and the absence of breakdowns, cracks and other deformations make it possible to produce reliable extensible orthodontic removable structures and devices, as well as to recommend this bioinert material for the correction of dental anomalies in children in the clinic of an orthodontist. This will improve the quality of services provided, significantly reduce the time of orthodontic treatment of dental anomalies in children.