CN213525624U - Device for measuring complete denture fixing force - Google Patents

Abstract

The utility model provides a device for determining complete denture fixing force, which comprises a desktop plate and a thick silk thread, wherein a door-shaped frame formed by connecting two support columns and an upper cross rod is fixedly arranged on the desktop plate, the lower ends of the two support columns of the door-shaped frame are in a thread external member type structure, the two support columns are stretched by rotating the thread external member, and the height of 11-27mm can be adjusted to adapt to the height of a patient so as to facilitate the U-shaped groove pulley to stretch into the mouth of the patient; the middle of the cross bar at the upper part of the portal frame is provided with a screw which can adjust the angle to adapt to the measurement of the positions of the upper and lower jaw false teeth, and a U-shaped groove fixed pulley is fixed on the screw; the thick silk thread is wound on the U-shaped groove pulley, one end of the thick silk thread is adhered to the false tooth, and the other end of the thick silk thread is connected to a tension testing head of the spring dynamometer. The utility model discloses repeatability is good and can accurately survey the device that the complete denture dislocated power perpendicularly, the clinical data collection of being convenient for and complete denture curative effect aassessment.

Description

Device for measuring complete denture fixing force

Technical Field

The utility model relates to a dedicated retention capacity apparatus in oral cavity for data acquisition belongs to department of stomatology data acquisition instrument technical field, is a device for surveing complete denture retention capacity particularly.

Background

The dentition loss is a common disease and frequently encountered disease of middle-aged and elderly people, can affect the functions of chewing, beauty, auxiliary pronunciation, physiological stimulation and the like of the original dentition, and brings great influence on the life quality, the nutritional status, social interaction and the whole body health of patients. The complete denture is an important repair means because the complete denture is economical, safe and noninvasive and can restore most of the functions of the missing dentition of a patient.

Retention refers to the ability of the denture to resist vertical dislocation from the mouth, and is a prerequisite for proper functioning of the complete denture. The retention force is an important index for evaluating the success of prosthetic tooth repair. The retention can be clinically evaluated by adopting subjective indexes and objective indexes, and the subjective indexes are usually evaluated by subjective feeling of patients, namely the evaluation of the satisfaction degree of the patients. Objective index: in-vitro determination experiments cannot give consideration to the influence of multiple factors in the oral cavity, so that the method is not accurate enough; the oral cavity measurement experiment is complex in operation and is interfered by multiple factors. Therefore, no method for measuring complete denture retention force is provided, which is perfect, acknowledged and dedicated, and comprises the following steps: shot weighing, elastic tensiometer, and sensor. Clinical multi-purpose sensor method: the resistance strain type retention force tester is used for measuring the dislocation force of the false tooth, and the resistance strain type retention force tester is not comprehensively popularized in clinical data collection because of complex operation, low repeatability, difficult disinfection of a force measuring rod and high-precision voltage required in use.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a device for measuring the denture fixing force for evaluating the denture fixing force by measuring the denture dislocation force. The utility model aims at solving the defects of the existing retention force determinator, providing a device which is convenient to install, simple and convenient to operate, economical and practical, good in repeatability and capable of accurately measuring the vertical dislocation force of the complete denture, and facilitating the clinical data collection and the complete denture curative effect evaluation.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a device for measuring the fixing force of complete denture is characterized by comprising a base, wherein the base comprises an upper panel, a lower panel and a knob bolt connected between the upper panel and the lower panel, the end surface of the upper panel is provided with a door-shaped frame consisting of two support columns and an upper cross rod, the middle of the upper cross rod of the door-shaped frame is provided with a pulley support seat capable of adjusting the angle to adapt to the measurement of the positions of the upper denture and the lower denture through screws, the pulley support seat is fixedly provided with a U-shaped groove fixed pulley through rivets, one end of a thick silk thread wound on the U-shaped groove fixed pulley is adhered to the denture, and the other end of the thick silk thread is connected to a.

Preferably, two support columns of the door-shaped frame are of telescopic piece type structures, the height range is adjusted to be 11-27mm through telescopic adjustment, so that the door-shaped frame is suitable for the height of a patient and can be conveniently stretched into the mouth of the patient through the fixed pulley of the U-shaped groove.

Preferably, the spring dynamometer is model pointer ch-300 manufactured by Dongguan Honui instruments, Inc.

Compared with the prior art, the utility model, its beneficial effect does:

the utility model discloses easy and simple to handle, repeatability and suitability are high, economical and practical, and it is more accurate to measure the retention power result, is applicable to clinical data collection, surveys upper and lower jaw complete denture retention power to evaluate complete denture's clinical curative effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the appearance of the U-shaped groove fixed pulley of the present invention.

Fig. 3 is a schematic view of an upper denture stress point.

Fig. 4 is a schematic view of the lower denture stress point.

In the figure: 1-upper panel, 2-lower panel, 3-knob bolt, 4-support column, 5-U-shaped groove fixed pulley, 6-pulley support, 7-screw, 8-thick silk thread and 9-spring dynamometer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The embodiment of the utility model provides a device for surveying complete mouthful of artificial tooth clamping force, as shown in fig. 1-2, the on-line screen storage device comprises a base, the base has a knob bolt 3 of connecting between top panel 1 and lower panel 2, makes the base press from both sides tightly to be fixed at the desktop flange through turning round tight knob bolt 3, turns round loose knob bolt 3 and can take off the base.

The base is fixedly provided with a door-shaped frame formed by connecting two support columns 4 and an upper cross rod, the left support column 4 and the right support column 4 of the door-shaped frame are of telescopic structures, the two support columns 4 are telescopic through stretching, and the height of the two support columns can be adjusted to be 11-27mm so as to adapt to the height of a patient. A pulley support 6 which can adjust the angle through a screw 7 to adapt to the measurement of the positions of the upper and lower jaw false teeth is arranged in the middle of the cross bar at the upper part of the portal frame, and a U-shaped groove fixed pulley 5 is fixed on the pulley support 6 by a rivet; the thick silk thread 8 is wound on the U-shaped groove fixed pulley 5, one end of the thick silk thread 8 is adhered to the false tooth, and the other end is connected to a tension test head of the spring dynamometer 9; the pulley support 6 provided with the U-shaped groove fixed pulley 5 is fixedly connected in the middle of the cross rod of the door-shaped frame through a screw 7, and the pulley support 6 can be adjusted by loosening the screw 7.

The U-shaped groove fixed pulley 5 can convert the direction of force, the thick silk thread 8 is wound on the U-shaped groove fixed pulley 5, and the thick silk thread 8 horizontally pulled by the spring dynamometer 9 vertically pulls the denture to be dislocated through the U-shaped groove of the U-shaped groove fixed pulley 5.

The spring dynamometer 9 adopted in the utility model is a pointer ch-300 type produced by Dongguan HonRui apparatus Limited; the spring dynamometer 9 with the peak value display has the peak value display, and the maximum value of the instantaneous dislocation force is convenient to read.

The thick silk thread 8 has the advantages of good flexibility, small elasticity, strong toughness and small friction force, and is suitable for measuring the pulling force.

The embodiment of the present invention provides the device, wherein the retention force measuring steps are shown in fig. 3-4:

step one, fixing a stress point of the denture: taking four thick silk threads 8 with the length of 20cm and the diameter of 1mm, sticking one thick silk thread 8 to the middle point of the upper jaw base support by using self-setting plastic, and connecting line intersection points between the first premolar and the molar teeth on the two sides and between the middle incisor teeth; the base supports at the gingival edges of adjacent points of first molar teeth and middle incisors on two sides of the lower jaw, which are close to each other, are respectively cemented with a piece of self-setting plastic with the diameter of 4mm to form a thick silk thread 8, the three points form an isosceles triangle, and the three threads are intersected and knotted at the middle point of the triangle.

And step two, the patient wears the complete denture, the sitting posture is taken to be positioned in front of the table top plate, the door-shaped frame of the retention force measuring device is fixed at one side of the table top plate patient, and the heights of the patient seat and two support columns 4 of the door-shaped frame are adjusted, so that the fixed pulley 5 of the U-shaped groove extends into the patient's mouth and is tightly abutted against the incisors in the jaw without contact with the test.

And step three, the tester sits in front of the table on the opposite side of the patient, holds the spring dynamometer 9, and horizontally pulls the thick silk thread 8 to dislocate the false tooth.

The other tester stands at the back side of the patient, the thumbs of the two hands are placed at the alveolar ridge crest of the premolar area of the jaw tested by the patient to avoid damage when the false tooth is dislocated, and the palm supports the lower jaw of the patient to help the patient to keep stable and motionless, but the tested false tooth cannot be touched to avoid affecting the dislocation. Measuring a lower jaw: lowering the head and opening the mouth with three fingers,

the plane is 45 degrees to the ground, the silk thread is connected with

The plane is 90 degrees, and the pulley is positioned below the midline of the maxillary central incisor and is close to and not in contact with the maxillary central incisor. The pulling direction is parallel to the horizontal direction to pull the false tooth to dislocate. The dynamometer was recorded for peak display (30N was recorded for no drop at 30N pull force to avoid discomfort to the patient, and continued application of force was stopped). Repeat for 3 times to get the averageAnd (4) average value.

Step four, when measuring the upper jaw, the patient raises his head, opens the mouth three fingers, and the upper jaw closes the plane and is 45 degrees with the ground; the coarse silk thread 8 fixed on the false tooth forms an angle of 90 degrees with the combined plane and passes through the U-shaped groove fixed pulley 5, the pulley 5 is positioned above the central line of the incisor in the lower jaw and is tightly close to and not contacted with the central line, the other end of the pulley is tied to a tension measuring head of the spring dynamometer 9, the spring dynamometer 9 is zeroed, the false tooth is kept always stressed by vertical dislocation force, a tester holds the spring dynamometer 4 by hand, the coarse silk thread 5 is horizontally drawn, the tension direction is parallel to the horizontal plane, the false tooth is drawn to be dislocated, and the peak value displayed by. To avoid discomfort, 30N is recorded if the pulling force reaches 30N and does not fall off, the continuous force application is stopped, and the average value is obtained by repeating the operation for 3 times.

When measuring the lower jaw, measuring the lower jaw: lowering head, opening mouth, making the lower jaw plane at 45 deg. to the ground, measuring the upper jaw retention force, repeating 3 times, and taking average value.

And step five, after the measurement is finished, grinding the stress points on the false tooth by using a slow grinding machine, and polishing.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. The device for measuring the complete denture fixing force is characterized by comprising a base, wherein the base comprises an upper panel (1), a lower panel (2) and a knob bolt (3) connected between the upper panel and the lower panel, a door-shaped frame consisting of two support columns (4) and an upper cross rod is arranged on the end surface of the upper panel (1), the upper cross rod of the door-shaped frame is positioned in the middle and is provided with a pulley support (6) with an adjustable angle to adapt to the measurement of the positions of the upper jaw and the lower jaw through a screw (7), a U-shaped groove fixed pulley (5) is fixed on the pulley support (6) through a rivet, one end of a thick silk thread (8) which bypasses the U-shaped groove fixed pulley (5) is fixedly attached to a denture, and the other end of the thick silk thread is connected to a tension test.

2. The device for measuring complete denture fixing force according to claim 1, wherein the two supporting columns (4) of the portal frame are of telescopic structure, and the height of the portal frame can be adjusted to be 11-27mm through up-down telescopic adjustment.

3. Device for measuring complete denture holding force according to claim 1, characterized in that the spring dynamometer (9) is of the type with index ch-300.

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