Method of controlling mutual location of upper and lower jaws in patients with dysfunctions in temporo-mandibular joints and device for its realisation

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine, namely to dentistry and are intended for control of mutual location of upper and lower jaws in patients with dysfunctions in temporo-mandibular joints at the stages of treatment. Device for control contains one miniimplant with asymmetrical as to the shape head for each jaw, one for each miniimplant wrench in form of three-dimensional shape of element with depression on one side, repeating in shape the shape of miniimplant head. Wrenches are made with possibilities of placement on miniimplant heads and rigid connection between each other in said position. One miniimplant with head of shaped form is implanted into interdental septum of upper and lower jaws of patients in fixed position of jaws. Individual wrench of cubic shape with internal depression on one of the sides, copying the shape of miniimplant head, is made for each miniimplant head. Wrenches are put on miniimplants, located in patient's mouth and are connected by means of non-shrinking dental plastic. After polymerisation wrenches are removed from heads of miniimplants. When patient stops using occlusal bus, control of mutual location of upper and lower jaws is realised by means of obtained spatial location of wrenches.

EFFECT: inventions make it possible to perform control of correction of spatial mutual location of upper and lower jaws due to coincidence of position of depressions in wrenches with position of miniimplant heads.

6 dwg

 

The invention relates to medicine, namely to dentistry for the treatment of patients with diseases of the temporomandibular joint by means of correction of the position of the heads of the lower jaw, i.e. displacement of the articular heads from the Central position of Central occlusion.

The main direction of the treatment of patients with diseases of the temporomandibular joints is the use of occlusive plastic tire combination therapy. The main complaints made by patients, are difficulty in opening the mouth, painful mouth opening, the displacement of the mandible to the side when opening the mouth. Occlusive bus is used to relieve painful symptoms and excessive tension in your joints. One of the main causes of disorders of the temporomandibular joints (TMJ) is the change in position of the head of the lower jaw, i.e. the offset of the articular heads from the Central position of Central occlusion. Occlusal splint is the most effective temporary method of treating a pathology provisions of the articular heads of the lower jaw, because plastic occlusal splint model to reposition the heads of the mandible in a Central position, if it is violated.

After removal of all symptoms at the end of treatment occlusal splint was removed. If the bus is changed Polo is giving the lower jaw, this position was consolidated at the expense of orthopedic therapeutic activities (manufacture of fixed structures or, in case of significant defects of dentition, the manufacture of dentures and orthodontic treatment measures (movement of the teeth of the upper jaw and the lower jaw to secure a new relationship of the jaws). This method of treatment of patients used at the present time. This method is described in the article "the Role gnathological surveys eliminate violations of the occlusal relationships of the teeth with periodontal diseases", available 28.12.2009 on the website "Dentalworld.ru" on the Internet in online at: http://www.dentalworld.ru/articles/55203/. This known method is adopted as a prototype for the claimed process. For the device according to this invention prototype not found.

The known method has a big disadvantage - there is no auxiliary temporary method of controlling the mutual position of the jaw after treatment with occlusal splints and commit new found position of the jaws, because the new relationship of the jaws is highly unstable in the absence of sufficient interdental contacts to lock it. The time spent on the production of removable and fixed prosthetic constructions or the use of orthodontic braces, pubset the result, since the new position of the lower jaw is controlled mainly by the muscles instead of teeth.

The present invention is directed to the achievement of the technical result in increased therapeutic efficiency, reducing complexity and improving the control function of the relative position of the jaw after treatment.

This technical result in part of the method is achieved by a method of controlling the relative location of the upper and lower jaws in patients with TMJ dysfunction characterized by the fact that at the fixed position of the lower and upper jaws due to occlusive tires introduced into the interdental septum of the upper and lower jaws on one mini-implant with a shaped form of the head output in the oral cavity of a patient, for each cylinder of the mini-implant is installed in the key of cubic shape with an inner cavity, the shape of the head of the mini-implant, then the key links between a hard link and removed from the heads of the mini-implant and the control of spatial the relative location of the upper and lower jaws in patients carried out after the end of use of the patient's occlusal splint by matching the position of the recesses in the key position of head of mini-implants.

This technical result in part of the device is achieved in that the device for controlling the ot is korespondencja upper and lower jaws is characterized by what holds for each jaw, one mini-implant with asymmetrical in plan shape of the head and one for each mini-implant key in the form of a cube-shaped element with a recess on one face, to form the shape of the head of the mini-implant in the plan, these keys are designed to accommodate the heads of the mini-implant and rigid connection between themselves in this position.

These characteristics are essential and interrelated with the formation of a stable set of essential features, sufficient to obtain the desired technical result.

This method is illustrated in the drawings, in which:

figure 1 - position mini-implants on the upper and lower jaws;

figure 2 - position of the keys on the mini-implants on the upper jaw and lower jaw;

3 - position block interconnected keys on the jaws;

figure 4 - key for mini-implant;

5 is a block interconnected keys for both mini-implants in the jaws;

6 is a mini-implant with a shaped form of the head.

According to the present invention, a method of monitoring the relative location of the top 1 and bottom 2 of the jaws in patients with TMJ dysfunction, which is the use of orthodontic mini-implants 3 and 4, followed by manufacturing them in evaluating key 5. Mini-implants are threaded into the interdental septum, the place chosen by CT scan of the upper and lower jaws and depends on how the subsequent permanent fixation of the found position of the jaws.

This method of monitoring the relative location of the upper and lower jaws in patients with TMJ dysfunction characterized by the fact that at the fixed position of the lower and upper jaws due to occlusive tires introduced into the interdental septum of the upper and lower jaws on one mini-implant with a shaped form of the head 6, is output in the oral cavity of a patient, for each cylinder, 6 mini implant set key 5 cubic form (or other three-dimensional form) with the internal cavity, the shape of the head of the mini-implant, then the key links between a hard link 7 and removed from the heads of the mini-implant and control spatial relationship of the upper and lower jaws in patients carried out after the end of use of the patient's occlusal splint by matching the position of the recesses in the key position of head of mini-implants.

For the inventive method is used, the implant prefabricated VectorTas ("Ormco") (item "Microimplants VectorTAS", has been posted online on the Internet on the official website of "DENTAL-COMPLEX-M CJSC dental To the complex-M" at the address: http://www.ormco-moscow.ru/spiritMB.html, found 03.02.2011,) has a triangular shaped head that after twisting mini-implant in the interdental septum protrudes into the oral cavity in order to made for his head key does not rotate, had no backlash and accurately recorded on the mini-implant. The key has the shape of a cube with an internal triangular recess response form the shape of the head of the mini-implant. The key is simulated (produced) from ash-free plastic and is molded from a dental alloy metal (cobalt-chrome alloy or titanium alloy VT-01) in the dental laboratory. You can use specially made implants with a shaped head. The key can have any three-dimensional form, the main thing is that when hard link keys between themselves must not change the spatial position of the recesses in these keys with respect to each other. After that, the keys are put on the mini-implants in the patient's mouth, and incorporate non-shrink dental plastic into the patient's mouth due to the gradual application of the plastic on the key and its polymerization into the patient's mouth. Connection rectangular keys required (this condition) occurs in a fixed position of the lower and upper jaws due to occlusal splint. Then we have the key, which is the control ol the spatial position of the jaws after the use of the patient's occlusal splint. Due to the inner triangle made in the keys missing offset and rotation of the key axis, thus we reach the save found clear spatial position of the jaws.

Thus, to control the relative location of the upper and lower jaws in patients with TMJ dysfunction can be used the device, which is a set of special devices. This device contains for each jaw, one mini-implant with asymmetrical in plan shape of the head and one for each mini-implant key in the form of a cube-shaped element with a recess on one face, to form the shape of the head of the mini-implant in the plan, these keys are designed to accommodate the heads of the mini-implant and rigid connection between themselves in this position.

The present invention is industrially applicable, can significantly reduce the timing control estimates the relative location of the upper and lower jaws in patients and to simplify the procedure of the control.

1. The method of controlling the relative location of the upper and lower jaws in patients with dysfunction in the temporomandibular joints, characterized by the fact that at the fixed position of the lower and upper jaws due to occlusive tires introduced into the interdental septum upper and lower h is lusty one mini-implant shaped head, output in the oral cavity of a patient, for each cylinder, mini implant set a key element of three-dimensional form with the internal cavity, the shape of the head of the mini-implant, then the key links between a hard link and removed from the heads of the mini-implant and the control of the spatial relationship of the upper and lower jaws in patients carried out after the end of use of the patient's occlusal splint by matching the position of the recesses in the key position of head of mini-implants.

2. Device for controlling the relative location of the upper and lower jaws, characterized in that it contains for each jaw, one mini-implant with asymmetrical in shape the head and one for each mini-implant in the form of three-dimensional form element with a recess on one face, to form the shape of the head of the mini-implant in the plan, these keys are designed to accommodate the heads of the mini-implant and rigid connection between themselves in this position.



 

Same patents:

The invention relates to medicine, namely, dentistry and can be used in orthodontics for stickers briquettes on the surface of the tooth and the teeth

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to dentistry, and is intended for determination of morphofunctional preservation of dentoalveolar apparatus. X-ray examination of patient is performed. X-ray image is used to determine degree of alveolus wall reduction around each tooth. Depending on reduction degree each tooth is assigned corresponding share of participation in chewing function DAA, determined with account of area of its root surface preserving normal contact with alveolus walls via ligamentous apparatus. If examined tooth is in contact with two teeth-antagonists, its share in chewing function is taken into account completely, if only with one - reduced twofold. If examined tooth has no contacts with teeth-antagonists or reduction of alveolus walls increases 3-d degree, its share of participation in realisation of chewing function is not taken into account. All shares of participation are summed up and morphofunctional preservation of DAA is evaluated in percent in comparison with the norm, taken as 100%.

EFFECT: method makes it possible to increase accuracy of static determination of morphofunctional preservation of DAA due to determination of share of participation of each separate tooth in chewing function.

3 tbl, 1 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely orthodontics, and aims at treating dentition and face disorders (DFD). It involves modelling the jaws, recording lateral and face teleradiography (TRG), orthopantomography (OPG), face and profile patient's photography. Masseteric and vocal dysfunctions are assessed. The lateral TRG is analysed by R.A.Fadeev and A.V.Kuzakova's technique. A first, second or third degree of manifestation assigned to each factor according to Table 1 'Quantitative Evaluation of Dentition and Face Disorders'. The degree of manifestation of each DFD factor provides a basis to plan a therapeutic approach to the patient. If all the factors or most of them shows the first degree of manifestation, orthodontic treatment without dental extraction is prescribed. All the factors or most of them corresponding to the second degree of manifestation requires orthodontic treatment with dental separation and extraction. Provided all the factors or most of them found in the third degree of manifestation, apparatus surgical management is applied.

EFFECT: method provides choosing the orthodontic approach ensured by the qualitative assessment of the DFD.

26 dwg, 15 tbl, 3 ex

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to orthodontology and is intended for estimation of orthodontic treatment results. Lateral, frontal teleradiographs (TRG) of head, orthopantomogram (OPTG), profile and frontal photographs of patient's face, models of jaws, their analysis in sagittal, vertical and transversal directions are obtained. Disorders of masticatory-vocal apparatus, close positioning of teeth, their retention and adentia are estimated. In accordance with data of diagnostic table 1 determined is degree of expression of each sign of dentoalveolar-facial abnormality (DAA) - first, second or third - before beginning ortghodontic treatment and after its completion. Treatment efficiency is determined comparing degree of expression of DAA signs before and after treatment.

EFFECT: method makes it possible to estimate efficiency of orthodontic treatment by degree of expression of DAA signs before and after treatment.

26 dwg, 13 tbl, 3 ex

FIELD: medicine.

SUBSTANCE: invention is referred to the area of medicine, namely to orthodontia, and can be used for determination of expression degree of dentoalveolar anomaly features in sagittal, vertical and transversal directions. It allows to receive the models of jaws, lateral and anterioposterior teleradiograph (TRG), orthopantomogram (OPTG), anterioposterior and profile photos of the patient face, to determine the disruption of chewing and vocal apparatus. The analysis of lateral TRG is performed using the method by R.A. Fadeev and A.V.Kuzakova. To every sign in accordance with the data of table 1 - “Quantitative determination of dentoalveolar and facial anomalies” the first, second or third degree of expression is assigned.

EFFECT: method provides for determination of expression of dentoalveolar anomaly features: morphologic, occlusion, aesthetic, functional, teeth crowding, its retention and adentiion in sagittal, vertical and transversal directions due to quantitative determination of dentoalveolar and facial anomalies.

1 dwg, 9 dwg, 7 tbl, 3 ex

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

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: 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

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