115 results about "Occlusal forces" patented technology

A device for collecting and transporting aqueous fluid from the oral cavity to a lateral chromatographic strip for test is disclosed. The lateral chromatographic strip is placed within and extend along a cavity defined in a housing. At least one inspection site to the lateral chromatographic strip is provided to enable inspection of selected sites on the lateral chromatographic strip for test results. A porous wick material protrudes from the housing to a collection site exterior of the housing at one end and communicates to the lateral chromatographic strip at the other end. The porous wick material has particulate construction, the particles adsorbing aqueous oral fluid to transport the fluid from the mouth to the lateral chromatographic strip without substantial absorption. The particles of the porous wick material are bound together to define a continuous interstitial volume for the flow of oral fluid to be transported and are treated to be hydrophilic to the adsorbed oral fluids. The porous wick material readily releases oral fluid to the lateral chromatographic strip. Prevention of reverse flow to the oral cavity from the lateral chromatographic strip naturally occurs due to the circuitous flow path of the porous wick material. A bite plate is coupled to the housing and insertable between the teeth of the patient to position the porous wick in the oral cavity for collecting the oral fluid. The bite plate is typically held in place by the occlusal force of the teeth, preferably the molars and / or the bicuspids, to position the porous wick in the buccal space. By observing the lateral chromatographic strip while the test device is in the mouth immediate test results are obtained.

A dental face bow suitably used for odontotherapy against edentulous jaw disease and multi-tooth coloboma, comprising a base frame having a pair of right and left side-frames along both side parts of the head part of a sufferer and a laterally extending lateral frame connecting the pair of right and left side-frames to each other and a rotating frame rotatably supported on the base frame so as to be moved close to and apart from the face of the sufferer on the inside of the side-frames. A mouthpiece inserted into the oral cavity of the sufferer is fitted to the lateral center part of the rotating frame. Ear pieces locked near the right and left earholes of the sufferer and a reference point indicator indicating the occlusal force concentrated part which is set near the nasion of the sufferer are fitted to the rotating frame.

A dental implant abutment assembly imitates a micro-motion mechanism to direct occlusal forces internally, and uniformly distribute the occlusal forces into the body of an ossoeintegrated dental implant. The micro-motion mechanism is configured to imitate the biomechanical behavior of the periodontal ligament through a compressive action that dampens vertical, horizontal, and angular forces. A compressive ring provides a dampening effect to supportive components of the assembly. A compressive coil redirects vertical forces along a longitudinal axis of the assembly. An implant body osseointegrates into the dental alveolus. A central mobile element seats in the dental body. The compressive coil extends along the central mobile element to absorb vertical forces. The compressive ring seats on the collar of the dental implant. A threaded cannulated housing securely holds the central mobile element and the compressive coil to form a single unit. A restorative abutment portion threadably seats on the central mobile element.

The invention provides a fixed denture and a preparation method thereof and relates to the field of medical instruments. The fixed denture is used for repairing a residual tooth. The fixed denture comprises a denture dental crown, a first denture base and a second denture base, wherein the first denture base and the second denture base are used for supporting the denture dental crown and wrapping the tongue side face and the cheek side face of the tooth of a patient respectively so that the denture dental crown can be stably supported by the first denture base and the second denture base. The fixed denture is simple in structure and low in price, the patient does not have a foreign body sense in the oral cavity, and the fixed denture is stable in retention, convenient to dismount and capable of bearing large occlusal force.