36 results about "Dental cusp" patented technology

The present invention provides a root canal length measuring device including: a measuring module configured to include a file hook electrically connected to an endodontic file, and a lip hook to be connected to a lip or a gum; a control module configured to measure the value of impedance which varies as the file moves from the surface of a tooth toward the apex of the root of the tooth, and provide an image signal or a sound signal representing information on the position of the apex of the root and information on the length of the apex of the root; and a communication module configured to receive the image signal or the sound signal from the control module, and wirelessly transmit the received signal to a smart device in real time.

An orthodontic device-setting tool is provided with: a fitting section having a fitting surface, which covers and fits together with at least one of the incisal margin, the dental cusp, or the occlusal surface of a tooth; a foundation section, which has a back surface that adheres closely to the labial / buccal surface or the lingual surface of the tooth and has, on the surface opposite the back surface, a front face on which the orthodontic device is mounted; and a connecting section that connects the fitting section and the foundation section. The tool has a frame section, which protrudes from the front face of the foundation section and can fit together with the orthodontic device. Use of the orthodontic device-setting tool makes it possible to mount orthodontic devices such as corrective brackets without holding the patient for long periods of time and to mount the orthodontic devices accurately at the desired three-dimensional mounting positions for the orthodontic devices regardless of the skill level of the dentist practitioner. Moreover, the tool can even be used with mass-produced general purpose orthodontic devices, which are not orthodontic devices that have been specially customized as to design, cut, etc. for individual patients.

The invention relates to a tooth cleaning kit, which consists of a work tip unit, a polishing unit and a fixed frame unit. The work tip unit includes supragingival tooth cleaning work tip, a shallow periodontal tooth cleaning work tip and a deep periodontal tooth cleaning work tip; the end face of the supragingival tooth cleaning work tip head is a beveled end face, and the end faces of the shallow periodontal tooth cleaning work tip and the deep periodontal tooth cleaning work tip are both tips; during use, firstly the supragingival tooth cleaning work tip is utilized to remove supragingival and tooth neck calculuses, dental plaques and dental cusp hard matters; then the shallow periodontal tooth cleaning work tip is employed to eliminate shallow periodontal calculuses and dental plaques rapidly and thoroughly; the deep periodontal tooth cleaning work tip is utilized to remove periodontal deep calculuses; and then a polish brush is employed to conduct preliminary polishing on the cleaned tooth faces, and a prophy cup is adopted for fine polishing. The tooth cleaning kit provided by the invention realizes leveling and polishing of tooth surfaces while rapidly and thoroughly cleaning teeth.

The invention relates to a complete dentition full denture finished product resin tooth, which comprises an upper denture, a lower denture, an upper dentition and a lower dentition, wherein the upper dentition is fixedly connected with the upper denture; the lower dentition is fixedly connected with the lower denture; and the upper dentition and the lower dentition are engaged with each other and are integral dentitions respectively. According to the complete dentition full denture finished product resin tooth, during arrangement of teeth and wearing, the upper dentition and the lower dentition are quickly and centrally engaged, so that the arrangement efficiency of the teeth is increased, the difference in tooth arrangement level of technicians is reduced, and the aims of guaranteeing wide close contact, reducing the clinical occlusal adjustment time and shortening the treatment time of patients are fulfilled. Each tooth is arranged according to an inclination angle in the tooth arrangement standard and positional relation of each dental cusp and an occlusal plane; the upper dentition and the lower dentition are matched teeth and are centrally engaged without error basically; the chair-side occlusal adjustment time of the full denture is reduced; the treatment time is shortened; and the comfort and the satisfaction of patients are improved.

The invention relates to the technical field of medical appliances, in particular to a special bolt driver for a bone screw. The special bolt driver comprises a handle and a bolt driver body, and is characterized in that the front end of the bolt driver body is provided with two teeth; the back end of the bolt driver body is provided with a locating block; the teeth are made of stainless steel materials, dental cusps of the teeth are opposite; a direction-turning device groove is arranged in the handle; and a direction-turning device is arranged in the direction-turning device groove and formed by a rotating shaft, a gear wheel, a cone, a locating ball, a spring, the locating plate, a locating piece and a wrench pin. Because the structure is adopted, the special bolt driver for the bone screw can be detachably stored, is beneficial to carrying and disinfection, and has the advantages of novel structure, fastness, reduction of patient pains, convenience for installation and disassembling and the like.