Retention device
The claimed utility model relates to medicine, directly to dentistry and orthodontics, and concerns the design of the retention device. The retention device consists of: a base 1 shortened from the roof of the mouth from photopolymer plastic and two rows of a reinforcing polymer filament 2 with a diameter of 0.35 mm, extending from the vestibular side, then continuing in the base of the device and covered with a photopolymer plastic in the cheek-b side of the crowns teeth 3 without overlapping their cutting edges and occlusal surfaces. The retention device provides an improvement in the result of the retention period after correction of various anomalies of the dentition and anomalies of the teeth.
RUDN University physicians have identified genetic characteristics that may affect the predisposition to re-stenosis — narrowing of the lumen of the vessel — after the installation of a stent. The results will help to determine the risk of restenosis and select personalized therapy more accurately.
RUDN chemists have created a reusable catalyst for the oxidation of sulfides for the synthesis of drugs, dyes, and other compounds. It can “switch” the final product and provides “green” reaction conditions.
RUDN University and Shahid Beheshti University (SBU) chemist together with colleagues from Iran created a hydrogel film for wound dressing. It protects the wound from germs and is harmless to healthy tissues. Moreover, its porous structure can hold antibiotic, which kills dangerous microorganisms and provide additional protection.
RUDN University physicians have identified genetic characteristics that may affect the predisposition to re-stenosis — narrowing of the lumen of the vessel — after the installation of a stent. The results will help to determine the risk of restenosis and select personalized therapy more accurately.
RUDN chemists have created a reusable catalyst for the oxidation of sulfides for the synthesis of drugs, dyes, and other compounds. It can “switch” the final product and provides “green” reaction conditions.
RUDN University and Shahid Beheshti University (SBU) chemist together with colleagues from Iran created a hydrogel film for wound dressing. It protects the wound from germs and is harmless to healthy tissues. Moreover, its porous structure can hold antibiotic, which kills dangerous microorganisms and provide additional protection.