RU133709U1 - DEVICE FOR REGISTRATION OF VERTICAL MOVEMENTS OF THE LOWER JAW - Google Patents

Abstract

A device for recording vertical movements of the lower jaw, consisting of a head rim and a sensor, characterized in that a personal computer is used as a recording device, the sensor is an optical mouse attached to the head rim, an ear clip is attached to it, and an ear clip through a hinge with the outer side on top of the flexible corrugation is attached a plastic plate with a height of 5 cm and a width of 10 cm, which is located so that the optical beam of the sensor falls on it, from below to the ears CB retainer by a wire arc attached chin abutment; Information is transferred from the device to a personal computer via a radio channel.

Description

The utility model relates to medicine, namely to orthopedic dentistry and is intended for recording vertical movements of the lower jaw.

The relevance of the issue lies in the fact that when registering the vertical movements of the lower jaw, it is possible to diagnose chewing function disorders at an early stage, as well as to monitor the quality of the treatment. [one]

A device for recording vertical movements of the lower jaw. Using a device consisting of two pieces of wire connected to the teeth with the help of arches directed in parallel, the mouth is opened and closed. The segment attached to the dental arch of the lower jaw is bent and pointed at its free end. Against this tip is placed paper attached to a wire on the upper jaw. The paper is smoked and the tip of the wire when opening and closing the mouth marks on it the path of movement of the lower jaw. [2]

The disadvantages of this device are: insufficient fixation of the apparatus; subjectivity in evaluating the data received, the inability to save data on digital media, the inability to use digital recording devices.

A device for recording vertical movements of the lower jaw. The essence of the operation of the device lies in the fact that the registration of vertical movements of the lower jaw is carried out using a masticiograph. A masticiograph consists of a plastic case, a rubber balloon, a belt, a rubber jumper, a rubber tube, a Mareevsky capsule, and a kimograph. By air transmission through the Marey capsule on a rotating kimograph tape, all kinds of movements of the lower jaw are recorded [1].

The disadvantages of the device are: hydrostatic method of transmitting a signal to a recording device; the inability to use digital recording devices and save data on digital media.

A device for recording vertical movements of the lower jaw, consisting of an electronic four-channel recorder H-338 and sensors assembled on resistors SP 5-21 A-1, mounted on a massive hard head rim, with a voltage of 1.5 V from a power source of the type Halo". When recording chewing movements, the speed of the belt tensioner 2.5 is used; 10 mm / s. [3]

The disadvantages of the device are: significant weight of the head rim and the device itself; inability to use digital recording devices; the inability to save data on digital media.

This method is taken as a prototype.

The purpose of creating a utility model is to create a device for recording vertical movements of the lower jaw with a small weight of the head rim and the device itself, with the ability to objectively evaluate the data obtained, save data on digital media, and use digital recording devices.

This goal is achieved by the fact that a personal computer is used as a recording device, the sensor is an optical mouse attached to the head rim, an ear clip is attached to it, and a plastic plate 5 cm high is attached to the ear clip using a hinge from the outside on top of the flexible corrugation and a width of 10 cm, which is located in such a way that the optical beam of the sensor falls on it, from below to the ear clip, a chin rest is attached through a wire arc; Information is transferred from the device to a personal computer via a radio channel.

The device is illustrated in graphic material.

The figure 1 schematically shows a device mounted on the head of a patient. The figure 2 shows a block diagram of a device for recording vertical movements of the lower jaw.

The device consists of a head rim (1), the sensor is an optical mouse (2) attached to the head rim, an ear clip (3) is attached to it, to the ear clip via a hinge (4) on the outer side from above on a flexible corrugation (5) a plastic plate (6) with a height of 5 cm and a width of 10 cm is attached, which is located in such a way that the optical beam of the sensor falls on it, from below to the ear clip, using a wire arch (7), a chin rest (8) is attached; a personal computer is used as a recording device (9), information is transmitted from the device to a personal computer via a radio channel (10).

The device is used as follows: after carrying out general examination methods, the patient’s head is placed on the pillow of the dental chair. To register the vertical movements of the lower jaw, it is necessary to fix the device on the patient's head. The head rim (1) is fixed to the patient on the head, the ear clip (3) is located in the external auditory meatus, the chin rest (8) is adjusted to the size of the lower jaw and mounted on the chin. Sensor - an optical mouse (2) is located on the head rim, a plastic plate (6) is adjacent to the sensor so that the optical beam of the sensor falls on it. For chewing tests and vertical movements, the patient is given almonds. When lowering the lower jaw, the movement, through the hinge (4), is transmitted to the plate (6), then to the sensor (2), and then is read by the recording device - a personal computer (9) via the radio channel (10).

The technical result of the claimed utility model is the registration of vertical movements of the lower jaw using a device with a small weight of the head rim and the device itself, with the possibility of an objective assessment of the received data, saving data on digital media, using digital recording devices.

Clinical example.

Patient K., 20 years old, was admitted to the dental clinic with complaints of difficulty chewing food.

Anamnesis of the disease: 1 year ago was treated by a dentist about caries. The fillings were placed on the chewing group of teeth.

Objectively: there are fillings on the chewing group of teeth of the upper and lower jaw. Premature contacts on antagonist teeth have been identified.

For diagnosis, we recorded the vertical movements of the lower jaw.

To register the vertical movements of the lower jaw, the device was fixed on the patient's head. The head rim was fixed to the patient’s head, the ear fixer was located in the external auditory meatus, the chin rest was adjusted to the size of the lower jaw and placed on the chin. Sensor - an optical mouse was located on the head rim, a plastic plate was adjacent to the sensor so that the optical beam of the sensor fell on it. For chewing tests and vertical movements, the patient was given almonds. When lowering the lower jaw, the movement, through the hinge, was transmitted to the plate, then to the sensor, and then was read by a recording device - a personal computer via a radio channel. During registration of the vertical movements of the lower jaw revealed uneven chewing of food, mainly on the right, associated with improperly installed fillings.

Completely replaced fillings and made selective grinding of teeth. After the course of treatment, the amplitude and frequency of chewing movements recovered.

Thus, the claimed device allows at an early stage in a clinical setting to record the vertical movements of the lower jaw of the patient for early diagnosis of dysfunction of the temporomandibular joint, masticatory muscles and quality control of the treatment.

The proposed method can be used in specialized medical institutions by dentists orthopedists.

Information sources:

1. Scherbakov A.S., Gavrilov E.I., Trezubov V.N., Zhulev E.N. Orthopedic dentistry. St. Petersburg, 1998.

2. Kurlandsky V.Yu., Khvatova V.A., Volozhin A.I., Lavochnik M.I., Research methods in orthopedic dentistry. Medicine Tashkent 1973

3. Sadykov MI. Clinical and functional evaluation of various methods of orthopedic treatment of patients with fractures of the lower jaw. Abstract of diss. Cand. honey. sciences. Kazan, 1990

Claims (1)

A device for recording vertical movements of the lower jaw, consisting of a head rim and a sensor, characterized in that a personal computer is used as a recording device, the sensor is an optical mouse attached to the head rim, an ear clip is attached to it, and an ear clip through a hinge with the outer side on top of the flexible corrugation is attached a plastic plate with a height of 5 cm and a width of 10 cm, which is located so that the optical beam of the sensor falls on it, from the bottom to the ears CB retainer by a wire arc attached chin abutment; Information is transferred from the device to a personal computer via a radio channel.

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