Method for evaluating the effectiveness of defects in the implementation of ambulator stomatological interventions
SUBSTANCE: invention relates to medicine, namely, to dentistry. Patient and the doctor fill the analogue-visual percentage scale of pain intensity during dental surgery. Descriptors for the patient: "no pain", "weak pain", "severe pain", "very strong pain", "unbearable pain". Descriptors for the physician taking into account the pulse, blood pressure and EOD: "the clinical effect of anesthesia is expressed in full", "the clinical effect of anesthesia is close to the maximum", "the clinical effect of anesthesia is poorly expressed", "the clinical effect of anesthesia is very poorly expressed", "the clinical effect – anesthesia has not come". With a graphic mark on the patient's scale and the doctor at a level of 100 % to 90 %, the descriptors correspond to "no pain", "the clinical effect of anesthesia is expressed in full", the effectiveness of anesthesia is sufficient for painless rendering of dental care in full. With a graphic mark on the patient's scale and the doctor from less than 90 % to 80 %, the descriptors correspond to "mild pain", "the clinical effect of anesthesia is close to the maximum", the effectiveness of anesthesia is sufficient for painless rendering of dental care in full, with appropriate correction of the patient's psychoemotional state. With a graphic mark on the patient's scale and the doctor from less than 80 % to 50 %, the descriptors correspond to "severe pain", "the clinical effect of anesthesia is poorly expressed", the effectiveness of anesthesia is insufficient for painless rendering of dental care in full, the patient needs a correction of the psychoemotional state. With a graphic mark on the patient's and doctor's scale from less than 50 % to 10 % – the descriptor corresponds to "very severe pain", "the clinical effect of anesthesia is very poorly expressed", the effectiveness of the anesthesia performed is not sufficient for painless rendering of dental care, dental intervention can not be performed in full because of severe pain syndrome accompanied by both a violation of the patient's psychoemotional state and an inflammatory component at the injection site, or an unreasonable choice of the method of anesthesia and a local anesthetic drug. With a graphic mark on the patient's scale and the doctor from less than 10 % to 0 %, the descriptors correspond to "unbearable pain", and "the clinical effect – anesthesia has not come", the efficacy of the anesthesia is absent and dental interventions are impossible due to severe pain syndrome accompanied by inflammatory component at the injection site, or an unreasonable choice of the method of anesthesia and a local anesthetic drug.
EFFECT: method allows simple and reliable assessment of the effectiveness of anesthesia in performing outpatient dental interventions by using the percentage score scale filled in by the doctor and patient and evaluating the most significant indicators.
1 cl, 1 dwg, 5 ex
SUBSTANCE: invention relates to medicine, in particular to dentistry, and deals with a method of oral cavity cleaning. The method includes the installation of a respective device on oral cavity sections for the detection and removal of plaque from the surface of, at least, one tooth. Cleaning and irradiation of the said surface are carried out simultaneously. A fluorescent agent, capable of binding with plaque, is applied on the surface of, at least, one tooth. The wavelength of falling radiation is such that effectively provides fluorescent radiation. The fluorescent radiation is registered during the first time period. The first average plaque value (APV1) is determined on the basis of the said fluorescent radiation. After that, registration of the fluorescent radiation during the second time period and determination of the second average plaque value (APV2) are carried out. Comparison of APV1 with APV2 is performed. Reflected light, obtained in the interaction of the said falling radiation with the said surface, is registered, in fact, simultaneously with the radiation and APV1 and APV2 to determine an average compensated plaque value (ACPV) for the said APV1 and APV2.
EFFECT: method ensures effective cleaning of the oral cavity due to the reliable presentation of the plaque state in the process of cleaning.
15 cl, 2 ex, 2 tbl, 5 dwg
SUBSTANCE: invention refers to medicine, namely to dental material science, and enables determining a bond strength of a dental material used for denture attachment to hard tissues of a tooth. A denture mechanical testing device consists of a carrier plate, on which a stepper motor and a denture fixation appliance are mounted. The stepper motor interacts with the denture fixation appliance through a string connected to the stepper motor, a spring and a weight module, a body of which comprises a liquid crystalline indicator for measured force control, and to a hook end. The load applied to the denture is measured by means of the weight module; what is also provided is a clock detector used to measure a denture deformity determined by pointer deflection on a device clock-face. The device switch on and off are controlled by means of PC and specially configured software.
EFFECT: invention enables providing the monitoring and recording of the accessible strength characteristics both of the dentures themselves, and of the dentures attached to hard tissues of the tooth, applying the preset static and dynamic load to the denture.
SUBSTANCE: method involves an impression procedure and making a dental model, in which a route of insertion of a future tray and a centre of the vestibular surface of the examined teeth is marked with a chemical pencil. The dental model is compressed with heated base plate wax 2 mm thick. A melting hot plate is used to cut down the wax from a base of the model with leaving the same on the teeth only. The prepared composition is reproduced in a silicone mass. The silicone copy is filled with plaster to produce a model. The produced model is used to make a tray of a rigid transparent plastic 4 mm thick. Through holes are created with a conical dental cutter having the parameters of a periotest probe through the transparent plastic which is guided by the marks in chemical pencil. Excessive plastic is cut off to the level of the transitory fold; the tray borders are smoothed. The tray is removed from the dental model, processed with disinfectants and mounted on the patient's denture. The periotest probe is fixed into the cone-shaped through holes of the tray at a distance of 2 mm. The measurements are taken with the use of the periotest with keeping the patient's medical records. That is followed by integrated treatment; thereafter, the repeated examinations of teeth loosening with the use of the existing tray at the various stages of treatment may be required.
EFFECT: method enables providing the high accuracy of periotestometry in the patients, matching the obtained results of teeth loosening in the course of treatment.
SUBSTANCE: invention refers to medicine, particularly to dentistry, and can be used for examining the mechanical properties of mandibular bony tissues. A device comprises material holding elements, a mechanical energy source, load record elements, a base, which is configured as a platform made of a solid material. The base bears front and back perpendicularly mounted jig; the back jig is movable along the base and fixes position. In the centre, the base carries a rigidly mounted vertical rod. A back end of the base comprises a hydraulic pump integrated into a liquid container; the hydraulic pump is connected to a pipeline with front and back chambers of a horizontal two-chamber cylinder, as well as to upper and lower chambers of a vertical two-chamber cylinder; the both cylinders comprise piston rods. The horizontal and vertical two-chamber cylinders are rigidly connected to the vertical rod. A piston rod of the horizontal two-chamber cylinder is rigidly connected from the back side to a rod, a free end of which is connected by a quick-detachable connection to a hose clamp placed on a ramus of mandible. At the front, the piston rod is connected to the rod, a free end of which comprises a detachable head. The piston rod integrated into the vertical two-chamber cylinder is connected from above to the rod, a free end of which is coupled by the quick-detachable connection to the load platform configured as a pad. The load platform has a hole, edges of which are rigidly connected to a guide bush, which incorporates a free vertical rod. Along the longitudinal axis of the base, there are provided two lower self-holding height-adjustable mandible clamps; they are mated with two upper self-holding height-adjustable mandible clamps rigidly connected below the load platform. The jigs, load platform, rod of the piston rod of the horizontal two-chamber cylinder, upper and lower self-holding mandible clamps comprise strain-gauge transducers connected through a control unit to measuring and recording instruments.
EFFECT: invention enables examining the extended mechanical characteristics of the mandibular bony tissue - clenching, stretching, hardness - to high stringency of the examination.
SUBSTANCE: ultrasonic wave transmission velocity is measured within the osseous inter-root septums by means of intra-oral cone-shaped sensors fixed in a silicone impression. The sensors are placed in an intersection point of the mid-length of the inter-root septum and a conditional line drawn on an upper jaw 3mm above, and on a lower jaw 3mm below a gingival line.
EFFECT: method enables obtaining the objective data of the risk of recurrences following the orthodontic treatment by the use of the cone-shaped sensors positioned directly in the oral cavity.
3 dwg, 2 tbl, 2 ex
SUBSTANCE: method involves measuring an enamel electrical conductivity and assessing a light-induced fluorescence of a dental tissue in the lesion. A current intensity within the lesion of no more than 0.2 mcA and the absence of the enamel glow testify to the enamel intactness with zero points assigned. The current intensity of 0.21 to 1.99 mcA and the enamel glow testify to the preclinical enamel changes with 0.1 points assigned. The current intensity of 2.0 to 3.99 mcA and the enamel glow testify to primary caries changes at the stage of dead spot with 0.4 points assigned. The current intensity of 4.0 to 5.99 mcA and the enamel glow testify to primary caries changes at the stage of dead spot with 0.7 points assigned. The current intensity of 6.0 to 7.99 mcA and the enamel glow testify to primary caries changes at the stage of deep white spot with 1 point assigned. A dental tissue resistance index (RIdt) is calculated by formula: RIdt=(F0×0+F1×0.1+F2×0.4+F3×0.7+F4×1)/n, wherein F0 is the number of teeth with the intact enamel; F1 is the number of teeth with the preclinical enamel changes ; F2 is the number of teeth with caries enamel changes at the stage of dead spot; F3 is the number of teeth with caries enamel changes at the stage of white spot; F4 is the number of teeth with caries enamel changes at the stage of deep white spot; n is the number of intact teeth having preclinical and early clinical changes. The index is calculated prior to and after the therapeutic-preventive course. A positive difference of the indices prior to and after the therapeutic course testifies to the adequacy of the conducted therapy. The above difference being zero or less testifies to the necessity of the recurrent course or changes in the therapy.
EFFECT: method provides assessing the dental tissues taking into account the preclinical and early changes.
1 tbl, 1 ex
SUBSTANCE: invention refers to medicine, namely to orthopaedic dentistry, and aims at locating and fixing the centric jaw relation. Special impression trays are used to contour a pattern in patients suffering from partial or complete adentia. Functional tests are conducted. A gothic arch is recorded. The centric jaw relation is located. The individual trays are fixed from an outer side with the use of an edgewise bracket. That is combined with removing the impression trays from the oral cavity with the edgewise bracket and modelled.
EFFECT: method enables locating accurately and fixing reliably the centric jaw relation, and using the device in any clinical situation by combining several clinical stages into a single method.
1 dwg, 1 ex
SUBSTANCE: invention refers to medicine, namely to dentistry, and aims at assessing the functional state of the masticatory muscles in the patients with mobile teeth accompanying a periodontal pathology, and at orthodontic treatment of malocclusion. Silver-chloride unipolar electrodes with a conductive gel are applied on motor points of the proper masticatory and temporal muscles are fixed to the facial skin with an adhesive plaster. The patient is presented with the functional test that is chewing 10 peeled pine nuts at random. The EMG is being recorded until the chewing process is completed.
EFFECT: through using 10 pine nut kernels as a test material, the method enables obtaining the objective assessment of the masticatory apparatus in the patients with mobile teeth accompanying a periodontal pathology, and in orthodontic treatment.
2 ex, 2 dwg
SUBSTANCE: group of inventions refers to medicine, particularly to orthopaedic dentistry, and aims at simulating therapeutic dental prosthesis taking into account habitual movements of a human lower jaw. The method for simulating an individual dental prosthesis involves placing cast models from upper and lower jaws on magnetic carriers in habitual occlusion into an inter-frame space of the device presented in the form of an articulator, adjusting the articulator considering the individual data via electronic axiography. A movable platform of the articulator is used for spatial motion along the six free coordinates of the cast model of the lower jaw. A device for implementing the method is presented in the form of an articulator consisting of a body for mounting the device on the surface and placing the magnetic seats of the casts of the upper and lower jaws in the inter-frame space; there are also provided movable platform, control and graphic user interface unit, as well as a control interface unit and a servo control. The movable platform is used for spatial motion along the six free coordinates and attached to a body element whereto the lower jaw is fastened using a magnetic seat. The PC-based control and graphic user interface unit is used for automatic and distant manual control of the movable platform. The control interface unit is used to translate electronic axiography logs and to match the PC and electronic control interface parameters. The servo control is used to actuate the movable platform.
EFFECT: more individual simulation of the dental prostheses thereby reducing manufacturing errors of the dental prostheses.
2 cl, 6 dwg
SUBSTANCE: invention refers to medicine, namely to orthopaedic dentistry, and is applicable when verifying a prosthetic teeth setup in relation to skull and face markers at any stage of prosthetic construction simulation, including the stage of wax model replacement by a prosthetic material. The plaster model is pre-plastered into an articulator by specific anatomical landmarks. The model taken from the articulator is placed with its base formed in the articulator on a horizontal top of a table. A digital camera is used to photograph a lower jaw model from the right and left. An upper jaw model is photographed from the right, left and from the front. The digital images are inserted onto the computer. The measurements are taken with using Photoshop CS software wherein the denture parameters are fixed using a ruler instrument.
EFFECT: method enables providing higher reliability and accuracy of the prosthetic teeth setup, measuring the denture geometry on the jaw model pre-plastered into the articulator of any of the known systems according to any of the known methods of mounts due to a possibility to measure the denture geometry considering a natural masticatory jaw position functional for the given patient.
2 cl, 8 dwg
SUBSTANCE: invention refers to disinfection and sterilisation of products, e.g. of medical devices. A multilayer sterilising system contains three sheets. Property sets of the first and second sheets contain one or more properties specified from the group including strength, barrier properties, abrasive resistance, cutting resistance, sliding resistance, hydrophilic nature, capillarity, absorbency, marking ability, printing ability, sterility indication, fastener reception and adhesive attachment. The third property set contains at least one complementary property found neither in the first property set, nor in the second one, or has a property of essentially higher level than those of the first or second property sets. The first and second sheets consist of a multilayer material, namely the first propylene layer of spinning blow and the second propylene layer of spinning. The third sheet contains nylon or polyester fibres. The sheets are connected by the fasteners.
EFFECT: use of the multilayer sterilising envelope allows reducing necessity of resterilisation due to improved properties of the sterilising system and packing a product.
7 dwg, 5 tbl
SUBSTANCE: device can be used during clinical testing of patients by means of percussion method. Device is provided with system of piezo-electric detectors connected in parallel, electron amplifier, switch with set of resistors which change mode of sensitivity step-by-step, and indicators of quality of conducted percussion in form of light and sonic signalization.
EFFECT: ability of changing mode of sensitivity of strike.
SUBSTANCE: clinical dental health parameters following the endodontic treatment (Cl parameter) expressed in the quantitative equivalent according to table 3, are recorded. The X-ray periapical tissue health parameters following the endodontic treatment (Rtissue parameter) expressed in the quantitative equivalent according to table 4, are recorded.The X-ray root filling health parameters following the endodontic treatment (Rfilling parameter) expressed in the quantitative equivalent according to table 5, are recorded. In questionable cases, the recording procedure involves a higher rate of the estimation scale, and for multirooted teeth - the highest rate specified; each following root filling health parameter and its assessment criterion is secondary from the previous one depending on a degree of risk of potential post-endodontic complications and arranged in the ascending order, thereby characterising an increase of a therapeutic defect rate, except for the first assessment criteria of each of the parameters of a quantitative aspect of the X-ray filling health with 1 point assigned to describe the ideal clinical outcome for the given parameter. A complex index of the endodontic treatment expressed in points is calculated by formula: CIET = Cl+Rtissue+ΣRfilling, wherein CIET is the complex index of the endodontic treatment; Cl is the quantitative characteristics of the clinical dental health following the endodontic treatment; Rtissue is the quantitative characteristics of the X-ray periapical tissue health following the endodontic treatment; ΣRfilling is a total score derived in accordance with the criteria of the quantitative characteristics of the X-ray root filling health following the endodontic treatment. The clinical outcome is analysed on a basis of theoretical evaluation of numerical ranges of accepted values of the complex index of the endodontic treatment enabling to specify the therapeutic approach to the patient. The complex index less than 12 points testifies to adequate leak resistance of the root filling; pathological changes in the periapical tissues are absent; the tooth does not need to be treated; the prediction is considered to be favourable. If the range is 13-19 points, the root filling occurs to seal the root canal inadequately; the risk of periapical complications is minimised; the 6-24-month case follow-up is recommended. The range of 20-37 points shows the unsatisfactory leak resistance of the root filling; the high probability of post-endodontic complications is stated; the recurrent endodontic manipulation is recommended; the prediction is open to question. If the index reaches 37 points and more, the surgical management is recommended.
EFFECT: by additional quantitative characteristics of the clinical and X-ray periapical tissue and root filling health, the method enables characterising the quality of the therapeutic outcomes in the nearest and remote period, and specifying the indications for a certain method of treating.
SUBSTANCE: invention refers to medicine, namely to dentistry, and can be used in diagnosing body sensitivity to dental materials. A challenge test involving a 2-hour contact of a sampling material and an oral mucosa is conducted. The state of the oral mucosa microvasculature is assessed by computed biomicroscopy. A diameter of a capillary arteriolar domain, a diameter of a capillary venular domain, a mean diameter of a capillary, a diameter of gathering venules, a functional capillary density are measured. If one of the relevant parameters tends to vary at a value, which is at least 1.5 times as much as a parameter variation error, a high sensitivity to the dental materials is diagnosed.
EFFECT: technique enables providing the more objective and reliable procedure applicable to diagnose the sensitivity by using the computed biomicroscopy for studying the tissue changes and selecting the best assessment criteria.
6 dwg, 2 tbl, 3 ex
SUBSTANCE: invention refers to medicine, namely to cardiology. A method involves estimating a compliance level on the basis of 20 test questions of the compliance rating scale applicable for the patients suffering hypertensive disease; each question has three selective answers coded from 1 to 3 points; the patient either fills in the scale independently, or ticks the answers to the questions being read out by the doctor. The result interpretation involves the total score for all the questions: 51-60 means a high compliance level; 41-50 shows a medium compliance level, whereas 40 points or less stand for a low compliance level.
EFFECT: estimating the compliance level and objectifying the results in points in the patients with hypertensive disease of the 1st-2nd stage, in arterial hypertension of the 1st-3rd degree by means of the specifically developed rating scale applicable to estimate the compliance in the patients suffering hypertensive disease.
2 tbl, 2 ex
SUBSTANCE: invention refers to medicine, functional diagnostics and can be used for preclinical, predoctoral examination, assessment of the functional state of body organs and systems, and pre-diagnosis. The method involves measuring electrical conductivity (EC) of 24 representing points of 12 symmetrical meridians, determining an arithmetic mean (AM) value of these measurements and specifying a corridor of permissible values for this patient, to which the derived values are compared in order to assess the functional state of the patient's body. That involves using the following criteria: a ratio of total ECs of Yin meridian points to total ECs of Yang meridian points, a ratio of total ECs of arm points to total ECs of leg points, a ratio of total ECs of left-side points to total ECs of right-side points. ECs are measured at voltages 5V, and/or 9V, and/or 12V. If the measurements are taken at 9V, the measured ECs are re-calculated by formula: I new=9/(29/I measured-0.1)*Coeff, (I); if the measurement process is performed at 12V, the measured values are re-calculated by formula: I new=9/(29/I measured-0.1)*Coeff, (I); and at 5V: I new=1 measured*Coeff, (III), wherein in (I), (II) and (III) respectively: I new is the re-calculated EC; I measured is the measured EC; Coeff is a correction coefficient taking into account a meridian conductivity heterogeneity. The re-calculated values are transformed into adjusted ones by formula: I adjusted=I new/I mean, wherein: I adjusted is the adjusted EC; I new is the non-adjusted re-calculated EC; I mean is the arithmetic mean value of all the 24 measurements. That is followed by delimiting an individual normal corridor for this patient depending on the preset diagnostic sensitivity S and a width of corridor of the permissible EC values Wpv. The Wpv represents a range of EC values measured in this patient, whereas the diagnostic sensitivity S is specified depending on selecting the patients with a certain disease. Delimiting the individual normal corridor for this patient is ensured by measuring intermediate coefficients for lower Kl and upper Ku corridor limits respectively: Kl=1-(1-S)*Wpv/2.1 and Ku=1+(1-Kl)*1.1. Lower L and upper U limits of the individual normal corridor are determined: L=Kl* I mean and U=Ku* I mean. That is followed by comparing I adjusted to the derived limits of the individual normal corridor.
EFFECT: method provides high accuracy of the individual diagnosis.
4 tbl, 2 ex
SUBSTANCE: senior guinea pigs are exposed to optical light generated by light emitting diodes or fluorescent tubes at a colour temperature of 4,500 K within the wavelength region of 360-460 nm for various time distances. The exposure is assessed by functional activity indices of neutrophilic granulocytes and a mononuclear cell count.
EFFECT: using the method requires no expensive equipment, critical chemicals; it is of a particular importance for evaluating the biological safety of new artificial light sources embedded into a light-colour medium; it provides expanded information on biological effects of optical light.
SUBSTANCE: method involves specifying the patient's age in years, measuring a left atrium diameter in millimetres, assessing the anti-arrhythmic therapy provided and determining a degree of aortic and mitral incompetence. The produced values are used to calculate a risk (R) of recurrent atrial fibrillation following a radiofrequency ablation procedure by original formula. If the derived value R is more than 0.5, the development of recurrent atrial fibrillation is predicted to follow the radiofrequency ablation procedure; the value R of 0.5 or less shows no risk of recurrent atrial fibrillation following the radiofrequency ablation procedure.
EFFECT: higher prediction accuracy.
SUBSTANCE: invention relates to medical equipment, namely to equipment for visualisation of physiological data. Method of monitoring physiological parameters contains stages at which physiological parameters are measured periodically or aperiodically by at least one electronic sensor, with each measured value of physiological parameter having corresponding medical expiry date, determined and continuously visualised are: the last measured value of each measured physiological parameter and its designation, medical expiry date for each measured value of physiological parameter, which represents preliminary specified maximal time, during which value of physiological parameter is visualised, remaining medical term to expiry date of each measured value of physiological parameter for inquired time moment is determined, for each measured physiological parameter with non-zero remaining time period before expiry date determined and visualised on display are: the last measured value of physiological parameter, its designation and indication of remaining medical time period before expiry date in form of indicating the number of days, hours, minutes or seconds, during which reading is visualised, or indication of amount of time before visualisation of the following reading, with removal of reading from display in real time after preliminary configured medical term before expiry date finishes, absence of image is replaced with symbol, showing absence of current reading. Method is realised with application of machine-readable carrier, containing programme, recorded on it, and device for visualisation of data values and designations of patient's physiological parameters, which contains electronic sensors for periodical of aperiodical measurement of values of physiological parameters, processor, programmed for determination of the last measured physiological parameter and display device control.
EFFECT: application of invention makes it possible to increase rapidity of determination of data remoteness of the screen.
8 cl, 13 dwg