DENTAL POST-AND-CORE Russian patent published in 2015 - IPC A61C13/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to orthopaedic dentistry, and can be used for restoring a clinical crown lost as a result of an injury or a developing caries. A dental post-and-core consist of two components: post and core. The post component is made of ceramics by computed milling and has an inlay that can be precisely fixed to walls of a prepared root canal, and a supraradicular portion in the form of a stump of a tooth prepared for permanent dental structure with a circular step inclined at an angle of 135 degrees. A cylindrical opening for the core in the form of a standard fibre-glass pin of classical typical sizes is formed inside the post throughout its length. A diameter of the prepared root canal is equal to a diameter of the fibre-glass pin.

EFFECT: invention enables restoring the damaged crown and the dwarfed, damaged neck subgingival part of the root canal with the permanent dental prothesis made of a bioinert material with enabled endodontic re-treatment as it may be required.

1 dwg