| 摘要 |
<p>FIELD: medicine.SUBSTANCE: invention refers to medicine, particularly to orthopaedic dentistry. An attachment comprises a body, a crossbar and a spring lock. The body comprises a through hole of the pre-set cross section, and also a hollow close to one end of the body. The crossbar cross section is designed so that to make the above crossbar slide in the above through hole of the body and be fixed in one of the two fixation positions; that is ensured by two cross grooves formed along the length of the above crossbar at the pre-set distance from each other. The spring lock is provided in the above body hollow and used to fix the crossbar in any of the two fixation positions by placing the above spring lock in one of the above fixation grooves.EFFECT: ease of the attachment production, as well as simplicity of the clasp denture delivery and removal using the given attachment.4 cl, 12 dwg</p> |
