Device for gutta-percha pin calibration

FIELD: medicine.

SUBSTANCE: invention relates to dental instruments and can be used for calibration of gutta-percha pins in obturation of tooth root canals. Technical result is achieved by the following: device for gutta-percha pin calibration contains scalpel and case with calibration holes. Calibrating holes are located along the length and are provided with indicators of diameter and length scale with millimeter points. Scalpel is made in form of spring-loaded from butt end plate of "П"-shaped section with bent inwards and at angle not exceeding 45° to base shelves. Plate is made from stainless elastic steel and is installed by means of shelves in L-shaped slots of lower part of base on its length with possibility to travel. On plate wall rectangular holes are made. Rectangular holes are located on its length evenly and in accordance with calibrating holes with cutting edge on one side.

EFFECT: increase of calibrated gutta-percha pin quality and therefore treatment quality, reduction of time required for rod calibration and tooth root canal treatment.

3 cl, 8 dwg

 

The technical solution relates to medicine, namely to dental instruments, and can be used for calibration of gutta-percha pins when the obturation of root canals of the tooth.

A device for measuring the length of endodontic instruments, such as pins, containing a ruler with millimeter divisions and pointers to the length of the teeth and roots of each tooth of the upper and lower jaws (see patent SU, No. 2017467, IPC-5 A61C 19/04, G01B 3/00).

The disadvantages of the known devices include: reduced its technological capabilities, because the device enables the calibration of the pins only in length and does not provide calibration pins in diameter.

The closest technical solution to the claimed is the calibrator andinstruments (ruler) of Gutta-Percha Points Gauge manufacturer, Dentsply-Maillefer, consisting of a body with gauge holes placed along the length and provided with a pointer diameter. On the building there are also length scale with millimeter divisions (see the Catalog of Magenta. Website: www.medenta.rn).

The disadvantages of the known devices are not enough high quality calibrated gutta-percha pins by cutting the pin manually with a scalpel, because the location of the scalpel inclined or loosely to the surface of the housing does not provide a perfectly flat shape of the top is the loud and pin or gives an error on the height of the pin. The use of the pin with a rough cut of the top does not completely hermetically sealing the root canal of the tooth, reducing the quality of obturation, and may lead to the development of the inflammatory process in the area of the root.

The technical result of the claimed technical solution is to improve the quality of the calibrated gutta-percha pins and, consequently, quality of care, reduction of time required for the calibration of the pin and the treatment of the root canal of the tooth.

The technical result is achieved in that the device for calibration of gutta-percha pins, comprising a housing with a calibration holes located along the length and marked diameter and with a scale length mm division, is further provided with a scalpel, made in the form of spring with the end plate is a U-shaped cross-section with curved inward and at an angle not more than 45° to the base of the shelves, made of stainless spring steel, installed shelves in the l-shaped grooves of the lower shell along its length with the ability to move, while on the wall plate scalpel made of rectangular apertures placed along its length evenly and accordingly the calibration holes with a cutting edge on one side.

Besides the technical result is achieved by the fact that the shelf plate is U-shaped with the treatment scalpel made bent inward and with a bend at the center of their length to the base of the case.

Besides the technical result is achieved by the fact that the shelf plate is a U-shaped cross-section of the scalpel made bent inwards, and the cutting edge is located at the front of a G-shaped cross-section of one side of the hole, at an angle not more than 45° to the base.

Supply device with a scalpel, made in the form of spring with the end plate is a U-shaped cross-section with curved inward and at an angle not more than 45° to the base of the shelves, or a scalpel, made in the form of spring with the end plate is a U-shaped cross-section with curved inside shelves and curved shelves in the center of their length, or a scalpel, made in the form of spring with the end plate is a U-shaped cross-section with curved inside shelves and cutting edge located at the front of a G-shaped cross-section of one side of the hole, at an angle not more than 45° to the base, made of stainless spring steel, installed shelves in the l-shaped grooves of the lower shell along its length with the possibility of movement, allows for the design and the applied material - spring steel - tightly pressed the knife to the ground, getting when cutting the pins perfectly smooth shape of the top, improving the quality of obturation of the root canal of a tooth.

Run on the wall plate scalpel primogeniture, placed along its length uniformly and accordingly the calibration holes with a cutting edge on one side or with a cutting edge on the l-shaped rack of the same hand, allows the exact diameter and quickly with a swipe of the scalpel to cut the tip of one or several pins at the same time, accelerating the process of the pins and the treatment process.

Figure 1 shows the device in side view, in cross section.

Figure 2 shows a view along arrow A in figure 1.

Figure 3 shows a view along arrow B in figure 1 (shelf scalpel bent inward and at an angle to the base).

Figure 4 shows the scalpel: a - side view (in section); b - top view; b - ventral view.

Figure 5 shows the scale length, placed on the body.

Figure 6 shows a device with a scalpel, made by bending the shelves in the center of their length.

7 shows the device with a scalpel, made with contour shelves inside.

On Fig shows a portion of the device with a scalpel, made with cutting edges on l-shaped desks in the section.

The device consists of a body 1 in the form of a parallelepiped, made of heat-resistant plastic that can withstand sterilization treatment and autoclaving. On the wide side of the housing along the Central line perpendicular to the plane are gauge holes 2 installed inside them ka is provocame rings, made of lightweight metal alloy that can withstand sterilization treatment and autoclaving. The device may be made entirely of metal alloy that can withstand sterilization treatment and autoclaving. The body is made seventeen gauge holes 2 ISO size from 20 to 140 at the base, marked their diameter, placed next to them. On the side of the body is placed a scale of length 3 with millimeter divisions. The device is provided with a scalpel 4 made in the form of a plate is a U-shaped profile with curved edges shelves inside and to the base at an angle, for example 30° (figure 3). On the wall of the U-shaped profile scalpel 4 is made of a rectangular hole 5 (figure 4, b) with a cutting edge on one side, perpendicular to the longitudinal axis of the scalpel, the number of holes 5 corresponds to the number of gauge holes 2. Scalpel 4-a can be made of plates of the U-shaped profile with curved edges shelves inside and with cutting edges, placed on racks 6 G-shaped profile in the holes in the wall (Fig). The rack 6 is located at an angle not more than 45° to the base body and can be made by cutting three sides of each hole wall and the flexible plates obtained to the racks G-shaped profile. Scalpel 4-in can be the implementation of the eh of the plate is a U-shaped profile with curved edges shelves inside (Fig.7) and curved shelves in the center of their length to the base of the housing (6). For the manufacture of a scalpel use stainless steel having spring characteristics, and therefore the bending shelves inside and to the base at an angle, for example, 30° or arrangement of the cutting edges on the l-shaped stands, positioned at an angle to the base, and performing a scalpel with the deflection of the shelves along the length allows for the installation of the scalpel firmly press it against the cutting edges to the base of the gauge holes 2. The knife is mounted for movement in the lower part of the housing 1 in the longitudinal grooves 7 G-shaped profile. In the initial position of the gauge holes 2 buildings located in the center of the rectangular holes 5 a scalpel. Longitudinal grooves 7 of the body moving in a cylindrical cavity for placement of the springs 8 which are in contact with the end surface of the scalpel 2, and provide return the knife to its original position.

The device operates as follows.

The diameter of the latest endodontic instrument used for treatment of the root canal of the tooth, choose rubber pin, place it in the appropriate calibration slot 2 device and move the scalpel, compressing the spring 8, while the cutting edge of the scalpel cuts off the tip of the pin with the formation of the desired diameter. Then the scalpel is returned by the spring 8 to the original position. The thickness at Aleut, place on the scale length and cut to the required length. In the treatment of multi-tooth or several teeth set multiple pins in the appropriate calibration hole and move the scalpel, cutting off their tops, accelerating the process of treatment of the teeth with a high quality of treatment.

Device, ensuring a higher quality of treated rubber pin and treatment with the accelerating process of treatment, will find application in dentistry.

1. A calibration device gutta-percha pins, comprising a housing with a calibration holes located along the length and marked diameter and with a scale length with millimeter divisions, wherein is further provided with a scalpel, made in the form of spring with the end plate is a U-shaped cross-section with curved inward and to the base at an angle less than 45° shelves, made of stainless spring steel, installed shelves in the l-shaped grooves of the lower shell along its length with the ability to move, while on the wall plate scalpel made of rectangular apertures placed along its length uniformly and accordingly gauge holes with a cutting edge on one side.

2. The device according to claim 1, characterized in that the shelf plate U-shaped scenescapes made bent inward and with a bend at the center of their length to the base of the case.

3. The device according to claim 1, characterized in that the shelf plate is a U-shaped cross-section of the scalpel made bent inward, and the cutting edge is located on the l-shaped rack one side of the hole, at an angle not more than 45° to the base.



 

Same patents:

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely - to dentistry, reflex diagnostics, and can be used in diagnosing a dental status and treating a dentition. A method involves examination and evaluation of dentition parametres. It is followed with measuring electric resistance in the area of eight points on hands. The measured parametres are scored. Two score scales are made. A state of the vegetative nervous system is evaluated by the measured data in the area on a dorso-ulnar surface of a middle phalanx of a second finger in a junction of a head and a body (point No.1). A status of parasympathetic ganglions, a subcortical nucleus n.vagus is specified by the measured data in the area of the middle dorso-ulnar surface of a body of a second metacarpal bone (point No.2). The measured data observed in the area of the dorso-ulnar surface of the second metacarpal bone in a junction of the body and a base (point No.3) show a status of cerebral nerves. The measurement taken in the area above a tuberosity of a distal phalanx of a fourth finger on the dorso-ulnar surface (point No.4) provides to observe a status of glucocorticoids and sex hormones secretion function. The measurement taken in the area above a base of the distal phalanx of the fourth finger on the dorso-ulnar surface (point No.5) presents a status of the sympathoadrenal system. A state of cervical ganglions is indicated by the measured data in the area on a dorso-ulnar surface of the middle phalanx of a forth finger in a junction of the head and body (point No.6). A state of a thyroid and a parathyroid is produced by the measured data in the area on a dorso-ulnar surface of a forth metacarpal bone in a junction of the head and body (point No.7). A state of a hypothalamus, a hypophysis and an epiphysis is shown by the measurement taken in the area on a dorso-ulnar surface of the forth metacarpal bone in a junction of the head and body (point No.8). The derived measurement data are used to make the first scale. The values up to 45 kOhm in point No.1 are evaluated as 0 points. The values 111 to 152 kOhm and 27 to 45 kOhm in point No.1 are evaluated as 1 point. The values more than 152 kOhm and less than 27 kOhm in point No.1 are evaluated as 2 points. The values 111 to 56.6 kOhm in point No.2 are evaluated as 0 points. The values 111 to 152 kOhm and 36 to 56.5 kOhm in point No.2 are evaluated as 1 point. The values more than 152 kOhm and less than 36 kOhm in point No.2 are evaluated as 2 points. The values 95.6 to 56.5 kOhm in point No.3 are evaluated as 0 points. The values 95.6 to 129 kOhm and 36 to 56.5 kOhm in point No.3 are evaluated as 1 point. The values more than 129 kOhm and less than 36 kOhm in point No.3 are evaluated as 2 points. The values 111 to 45 kOhm in point No.4 are evaluated as 0 points. The values 111 to 152 kOhm and 27 to 45 kOhm in point No.4 are evaluated as 1 point. The values more than 152 kOhm and less than 27 kOhm in point No.4 are evaluated as 2 points. The values 111 to 36 kOhm in point No.5 are evaluated as 0 points. The values 111 to 152 kOhm and 19.5 to 36 kOhm in point No.5 are evaluated as 1 point. The values more than 152 kOhm and less than 19.5 kOhm in point No.5 are evaluated as 2 points. The values 111 to 45 kOhm in point No.6 are evaluated as 0 points. The values 111 to 152 kOhm and 27 to 45 kOhm in point No.6 are evaluated as 1 point. The values more than 152 kOhm and less than 27 kOhm in point No.6 are evaluated as 2 points. The values 111 to 36 kOhm in point No.7 are evaluated as 0 points. The values 111 to 152 kOhm and 27 to 36 kOhm in point No.7 are evaluated as 1 point. The values more than 152 kOhm and less than 27 kOhm in point No.7 are evaluated as 2 points. The values 111 to 56.6 kOhm in point No.8 are evaluated as 0 points. The values 111 to 152 kOhm and 36 to 56.5 kOhm in point No.8 are evaluated as 1 point. The values more than 152 kOhm and less than 36 kOhm in point No.8 are evaluated as 2 points. The second scale is made by summing up the derives points. If the point total is either zero to five for one hand, or 0 to 10 for the right and left hands, a normal adaptability is diagnosed. The point total being either 6 to 12 for one hand, or 12 to 24 for the right and left hands, a lowered adaptability is diagnosed. The point total being either 13 to 16 for one hand, or 25 to 32 for the right and left hands, a fallen adaptability is diagnosed.

EFFECT: method is easy-to-implement, does not cause complications and allows to schedule an extent and a stage-by-stage approach to therapeutic actions taking into account an adaptability status of a specific patient.

5 tbl, 1 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to mandibular abnormal position treatment apparatus. The apparatus comprises a mandible position detector 12, a beep electronic module 13, and quick-release fasteners for the detector 12 and electronic module 13 to the patient's head. The detector is a Hall-effect sensor with an appropriate magnetic marker 1. The magnetic marker 1 is made of the material neodymium-iron-boron, disk-shaped 8-12 mm in diametre and 1.5-2.5 mm in thickness and attached to the patient's chin. The detector 12 and electronic module 13 are integrated in a common body 2 which is turnable on a repositionable core frame enclosing the chin. The electronic module comprises a PC interface 19 and a microprocessor 15 with storage units 15A and a calibration unit 15B.

EFFECT: invention shall enable higher accuracy of mandible position measurement and on-line control of therapeutic process dynamics.

2 cl, 1 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, and particularly to metering systems for mouth cavity. System comprises registering device, comprising photodetector and light source, interface joined to registering device and comprising light-conducting prism, in which there is a surface of registration and surface of image generation. In process of use surface of registration is brought closely to or in contact with surface of chewing, front surface or one of side surfaces of metered row of teeth or into mouth cavity, and surface of image generation is joined to registering device. At the same time registering device is arranged with the possibility of disconnection from interface, prism represents Bauernfind prism, and source of light emits white light. Source of light is located opposite to one of prism sides and is arranged so that it may illuminate metered row of teeth or mouth cavity continuously or for a short period of time.

EFFECT: device application makes it possible to increase viewing angle to obtain image of the whole surface of row of teeth or whole mouth cavity in a single operation.

9 cl, 5 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to dentistry and can be used in dentoalveolar pathology treatment. A control device for dentoalveolar pathology treatment results comprises a common platform. On the common platform, there are rigidly fixed opposed cefalostate with a frontal support, vertical graduated guides for a chin support with clamps and a precision camera on a guide perpendicular to a plane of the cefalostate. The camera is removable in the horizontal plane forward-backward and turnable at an angle and about a vertical axis. The device is supplied with vertical frames. The vertical frames, vertical guides and camera guide are graduated.

EFFECT: objectified assessment of treatment quality, enabled control of treatment results in dynamics with taking into account specific features of the initial state of solid tooth tissues, parodentium tissues and dentoalveolar anomalies.

2 tbl, 1 ex, 3 dwg

FIELD: medicine.

SUBSTANCE: invention relates to medical measuring equipment and can be used for determining linear dimensions and area of different anatomical formations of jaw-facial region, angles in degrees of ratio between them both outside and in oral cavity in normal and pathologic states. During examination of patients during polyclinic reception by doctors of various specialisation. For determination of dimensions of small neoplasms and wounds both outside and in oral cavity, description of dental images. Device for determination of anatomical formations in dentistry and X-ray image description represents transparent film with marking applied on it. Marking is applied by laser ray and has form of circle with 3 cm diametre, which is divided into sectors from 0 to 315 degrees. Quarter of circle has millimetre net.

EFFECT: ensuring simplicity of device manufacturing, low cost, increase of examination accuracy and safety, availability for manufacturing and replication.

5 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to dentistry and can be used for root apex positioning. A positioner is provided with a fastener. The fastener has a holder on a tooth to be treated or an adjacent one. Simultaneously, the fastener comprises a signal transmitter between the root apex positioner and an endodontic instrument, and signal transmitters between said device and a patient.

EFFECT: declared apparatus allows eliminating wire connection problems and ensures the complete license when positioning the root apex.

22 cl, 5 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine and is intended for determination of marginal adaptation of composite hermetic to hard tooth tissues. After composite hermetic sealing of fissures, dental deposit is removed thoroughly. A tooth is saliva-isolated with cotton swabs. An investigated tooth surface is thoroughly air-dried. A passive electrode is fixed in the oral cavity. A microdrop of electrolyte - 10% calcium chloride is applied on a tooth surface. An active electrode is applied on a point on the hermetic-tooth interface. Electric current of power - 3-5 V is passed. If the electrical conduction of hard tooth tissues is 0-1 mcA, complete marginal adaptation of the hermetic is diagnosed. If said value exceeds 1 mcA, disordered marginal adaptation of hermetic to hard tooth tissues is diagnosed.

EFFECT: method allows for early determination of loss of sealing of coating, improves accuracy of determination of degree of marginal adaptation of composite hermetic to hard tooth tissues.

3 ex

FIELD: medicine.

SUBSTANCE: invention relates to medicine and can be used for evaluation of patient's chewing efficiency both before planning orthopedic dental treatment, and after prosthetics with application of substituting orthopedic apparatuses. Functional (chewing) test is carried out. On the basis of chart with preliminarily calculated coefficients of chewing efficiency and taking into account coefficients of age and tooth row state, as well as type of substituting apparatus qualified efficiency of chewing is calculated.

EFFECT: method allows to determine chewing efficiency, individualise results of patients' chewing efficiency taking into account age and state of tooth rows.

1 tbl, 1 ex

FIELD: medicine.

SUBSTANCE: invention is intended for veterinary science. A gingival contour probe contains a handle piece and an elongated end piece. The latter is attached with its proximal end to the handle piece. The end piece is curved and/or arched and contains markings in number and with a scale to characterise the measured lengths. At least by number and/or scale of markings, the probe fits for application in easy measurement of a gingival edge on a conscious animal. The probe is used to implement the method of quantitative estimation of dental deposit on a conscious animal. The method involves the stages (a) matching the end piece of said gingival contour probe and the gingival edge of an animal, (b) measuring the length of the gingival edge and the length of deposition, if any is observed on gingival markings of the end piece of the probe, and (c) calculating the quantitative indicator of dental deposit by comparing the length of deposition and the length of the edge.

EFFECT: invention provides ease of use.

21 cl, 2 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine, in particular to dentistry, and can be applied for diagnostics of supporting-holding apparatus or tooth tissue, surrounding implant. Force is applied to implant, providing change of its position from normal and measurement of angular displacement value. Implant of circular transversal cutting is loaded in point, which is located in the middle of projecting from periodontal part tissues part of implant, by force of pair of forces by means of sinkers, suspended to implant. Angles of its turning by laser pointer, rigidly fastened on implant end are registered on monitor, which is placed in front of implant. Measured are deviations from central line on monitor, which are index of implant displacement from established norm. Coefficient of rigidity of dental implant fastening in bone is determined by mathematic formula. If value of coefficient of rigidity 15≤KJ≤25, conclusion is made that level of rigidity of implant fastening allows its loading with orthopedic construction.

EFFECT: method allows to realise reliable determination of degree of rigidity of dental implant fixation in bone in order to evaluate possibility of its primary, secondary and repeated loading with orthopedic construction.

4 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: method involves recording graphic readings. Patient does sagittal and then transverse mandible movements simultaneously recorded with two parallel graphic lines. Maximum sagittal and then transverse mandible movements are recorded from central occlusion position distinguished in that the patient keeps sliding contact between maxillary and mandibular teeth, or maximum movements are recorded in temporomandibular articulation with dentition rows separated to minimum. Sagittal movement amplitudes being symmetric and transverse mandible movements line being immobile, norm is to be diagnosed. Amplitude asymmetry or transformed parallel dimension being the case, functional occlusion disorder or temporomandibular articulation pathology is to be diagnosed.

EFFECT: high accuracy of diagnosis.

2 dwg

FIELD: medicine.

SUBSTANCE: device has supporting upright having supporting member bearing a member for fixing ear. The supporting member has T-shaped upper and lower parts arranged in parallel to each other and allowing rotation by 90°. The members for fixing ear, the members for fixing nose and occiput are mounted on the lower supporting member part movable up and down and back and forth. Millimetric rulers arranged as letter U are mounted on the upper supporting member part.

EFFECT: high fixation reliability.

2 dwg

FIELD: medical engineering.

SUBSTANCE: device has two probes and U-shaped plate and U-shaped plate. The U-shaped plate has lateral holes for fixing mould mass. The handle is arranged uniaxially with guide member having blind end, at the place the plate is curved. The probes have springs and restrictors. Probe positioned close to U-shaped plate curvature has length equal to 26 mm, the other probe is 34 mm long.

EFFECT: high accuracy of measurements; accelerated examination process.

2 dwg

FIELD: method and device can be used for determining optical characteristics of multilayer objects (layers of enamel and dentine) containing internal matter which is partially transparent and dissipates light diffusely.

SUBSTANCE: radiation is applied to surface of tested object and subsequently registered at output of receiving light guide. Area of partial darkening is formed onto surface of object at the receiving light guide's exit window. Area of darkening provides distribution of dissipated radiation power density, which changes within space. Dissipated radiation enters input window of light guide and is registered. Optical characteristics of multilayer object are judged from the dissipated radiation. Device for realization of the method has illuminating unit provided with exit window, radiation registration unit, at least two photosensitive elements, signal control and processing unit, and receiving light guide. Illuminating unit's exit window and receiving light guide are mounted coaxial to each other. Photosensitive elements of radiation registration unit are optically matched with exit window of receiving light guide and are disposed coaxial to each other for registration of volumetric distribution of radiation power dissipated by tested object.

EFFECT: improved precision.

7 cl, 5 dwg

FIELD: stomatology.

SUBSTANCE: method can be used for objective estimation of color of solid tissues of teeth, filling material and fillings. Method of estimation includes application of light along lightguide onto part of tooth and guiding of reflected light along lightguide to introduce reflected light into spectrum analyzer. Reflection spectrum is subject to colorimetric treatment to determine coloration. The coloration is compared with pre-known coloration of samples. Color is judged to be identical in case both colorations coincide. Light is applied to non-damaged part of tooth and reflected light is collected by means of photometric sphere. Coordinates of coloration are determined from reflection spectrum. The coordinates are compared with known ones of samples of filling material. If difference in color doesn't exceed 2-3 thresholds then filling material is chosen. If color difference is bigger then two filling materials are chosen and imposed one on the other and the third material is added to reduce color difference till specified threshold. Control determination of coordinates of coloration of filling is carried out and in case the coordinates coincide with coordinates of coloration of non-damaged part of tooth doesn't exceed 2-3 thresholds, the estimation is judged to be identical one.

EFFECT: improved precision; higher truth of estimation of color.

2 cl, 4 dwg, 1 ex, 1 tbl

Dental explorer // 2268683

FIELD: medical engineering.

SUBSTANCE: dental explorer comprises rod, which is provided with the handle at one of its ends and operating tip at the other end and has additional tip. The additional tip is mounted on the rod parallel to the axis of the operating tip for permitting detachment so that to provide the distance between the tips to be no less than the thickness of the wall of periodontal pocket. The free ends of the tips are leveled.

EFFECT: enhanced precision and enhanced efficiency of treatment.

9 cl, 3 dwg

FIELD: medicine; dentistry.

SUBSTANCE: device for electric diagnostics of condition of hard tissues of tooth has measurement unit, active and passive electrodes. Active electrode has holder made of isolation material. There is tip at the end of electrode. The tip is made of current-conducting material. There is contact element on the tip; the contact element is made in form capillary tube. Elastic tube is fastened to holder. One end of the tube is open and the other one is closed. Closed end of the tube is connected with non-working end of capillary tube. Passive electrode is made in form of contact area. Tip has vertical hole and horizontal hole disposed in perpendicular to the tip; the horizontal hole is provided with thread. Removable capillary tube in mounted inside vertical hole; the capillary tube is capable of moving along the hole. Non-working end of capillary tube is connected with elastic tube by connecting coupling. Rest screw is mounted inside threaded hole. Closed end of elastic tube is made in form of elastic bottle placed inside rigid cylindrical case provided with lateral slot along its middle part. Elastic clamp is put onto case. Protecting case is disposed between bottle and case at its top part. Removable dozer in form of plate being congruent to case is mounted onto case. There is vertical protrusion at one end of dozer. The protrusion goes into slot of case for interaction with protecting case. The other end of plate of dozer is inserted into elastic casing. Silver contact area of passive electrode is disposed onto elastic substrate. Removable dozer has vertical protrusion which height can differ.

EFFECT: improved precision of measurement.

1 dwg

FIELD: medicine.

SUBSTANCE: method involves measuring and recording articulation and incisor paths sagittal shift and transverse movements. Mandibular movements are recorded by means of special-purpose device. The articulation, incisor and sagittal paths are determined by means of the first gnathotransducer recording maximum right and left shifts of the mandible. The first gnathotransducer operating, the second one is idle. The gnathotransducers transform spatial displacements of the mandible into electric signals, register and save them. Device has T-shaped metal plates having upper parts rigidly connected to head phones and the lower parts to occipital and subocular arch, two rheostat gnathotransducer fixed on subocular arch in perpendicular to each other and connected to recording device and power supply source via switch, rigid sling having threaded bushing, probe and lock-nut connected to the T-shaped metal plates by means of rubber tie-rods.

EFFECT: high operation accuracy; improved dental prosthesis quality.

2 cl, 1 dwg

FIELD: medicine.

SUBSTANCE: method involves applying variable force to a tooth. Harmonic mechanical oscillations of frequency not exceeding 250 Hz are excited. Mechanical impedance Z is concurrently measured. Lower limit of changes shows extreme tooth looseness degree. The upper limit of changes shows physiologic tooth looseness degree. Mechanical impedance Z value is measured as Nxs/m, where N is the newton, s is the second and m is the meter.

EFFECT: high accuracy and objectiveness of measurements.

1 dwg

FIELD: medicine; medical engineering.

SUBSTANCE: method involves recording wave radiation by means of device for recording wave radiation, building panoramic image in computer memory and on display screen. Infrared imager is used as the device for recording thermal radiation. Two thermovision panorama images are recorded for each jaw. The first thermovision panorama image is built by moving the infrared imager along circular arc in horizontal plane and the second one in a plane arranged at an angle to the horizon. The mandibular thermovision panorama images are built in horizontal and vertical planes and those of the maxilla in the horizontal plane and in a plane arranged at an angle to the horizon. Spatial image is built on display screen using the mandibular and maxillary thermovision panorama images produced in two projections. The device has wave energy receiver being infrared imager capable of moving in vertical, circular direction and changing movement plane inclination angle. The infrared imager is mounted on guide member shaped as circular arc. The guide member changes infrared imager montage plane inclination angle relative to horizontal position.

EFFECT: wide range of functional applications.

6 cl, 2 dwg

Up!