Клиническое значение адгезии представителей оральной микробиоты к полимерным материалам, рекомендованным для стоматологической технологии компьютерного фрезерования и 3D-печати

Evaluation of primary adhesion to orthopedic dental materials for the main groups of oral microbial consortium is an actual problem and can be considered as an important criterion parameter for the choice of construction material. Materials and methods. In vitro adhesion of test cultures was studied to samples of: traditional acrylic polymers — Luxatemp Automix Plus (DMG, Германия) and Sinma-M (Stoma, Ukraine); plastics for 3D milling — Temp Basic (Zirkonzahn, Italy) and Re-Fine Acrylic (Yamahachi Dental, Japan); UV curing polymers for 3D printing — Freeprint temp (Detax, Germany), NextDent C&B MFH (Netherlands) and Dental Sand (HARZ Labs, Russia). The obtained adhesion indices were averaged by main groups: normal microbiota, periodontopathogenic microbiota, mycotic microbiota. The results were processed according to the Kruskal—Wallis criterion taking into account the Dann criterion and the Bonferroni amendment. Results. A high adhesion index for all groups of microbiota was observed for cold and hot polymerization materials, reliably lower — for subtractive milling technology, and minimal — for additive 3D printing materials. The minimum level of microbial adhesion (0.35±0.02) was found in the new Russian material Dental Sand for all groups of microbiota as compared to materials for cold and hot polymerization. Conclusion. Adhesion of the main groups of oral microbiota is determined both by the type of technology used to create prosthetic dental structures and by the physical and chemical nature of the structural material, as well as by the surface characteristics formed using this or that technology.