CN101053536B

CN101053536B - Oral occlusal vertical height measuring ruler

Info

Publication number: CN101053536B
Application number: CN2007100686497A
Authority: CN
Inventors: 刘丽; 范翌; 章燕珍; 毛英杰
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2007-05-15
Filing date: 2007-05-15
Publication date: 2010-06-02
Anticipated expiration: 2027-05-15
Also published as: CN101053536A

Abstract

The invention discloses a ruler for measuring the vertical height of oral cavity bite. Including fan-shaped angle measuring board, subnasal point positioning rod, submental point positioning rod, two vertical height rods, parallel structure holding rod and lead pendant. Use a pen to trace the infraorbital point and preauricular point on one side of the patient, position the subnasal point positioning rod on the angle measurement board at these two points, that is, the Frankfurt plane, and make a pitching movement of the head. When the metal pendant on the angle measurement board points to Stop at 90° and keep the upper body and neck relatively still. Transfer the angle measurement board to the working position while keeping it still, that is, the positioning rod of the subnasal point is at the subnasal point, and the angle measurement board makes a pitching motion like the previous head to make the lead pendant point to the 90° vertical position again. At this point the Frankfurt plane transfer is complete. Finally, move the end of the parallel structure holding rod and use moderate force to minimize the soft tissue at the submental point. Calculate the vertical height to be measured according to the degrees on the angle measuring board.

Description

Oral cavity interlock vertical height dip stick

Technical field

The present invention relates to the dentistry appurtenance, especially relate to a kind of oral cavity interlock vertical height dip stick.

Background technology

Need guarantee that the patient has identical interlock vertical height before and after the complete denture restoration.Preferred vertical dimension of occlusion (occlusal vertical dimension, 1/3rd height under the face when OVD) being meant the contact of lower jaw maximum interdigitation.Will accurately recover the physiology interlock highly needs accurate measurement means, and this helps the long-term health of remporomandibular joint.The definite of vertical dimension adopt rest position methods, facial impartial method, facial appearance observation method etc. more clinically at present, yet all need measure by the employing instrument by these methods, otherwise are difficult to obtain satisfied artificial tooth.

At present domestic a kind of simple measuring rule commonly used clinically, structure is as shown in Figure 1: at first subnasal point locating rod 8 is placed into subnasal point, slide up and down menton locating rod 9 then, make the menton locating rod fully contact soft tissue and locking under the chin, read this dip stick body scale at last.Part patient's chin, lip soft tissue plentiful flexible, lower jaw bulging individual variation is big, under the short nose/chin under locating rod often can not be placed into site ideally; Dip stick is different with facial angle to be had a significant impact measurement result, lacks objective reference point/face and makes that the repeatability of measurement data is poor.

Summary of the invention

The object of the present invention is to provide a kind of oral cavity interlock vertical height dip stick, make eye-ear plane be parallel to ground by the eye-ear plane of plane of orientation and the plummet position patient head on the dip stick; Shift Frankfurt plane to the subnasal point level by the metal drops vertical ground; Throughput hornwork reading is also tabled look-up and is obtained vertical height.

The technical solution adopted for the present invention to solve the technical problems is:

Comprise fan-shaped angular surveying plate, the subnasal point locating rod, the menton locating rod, two vertical height bars, parallel construction keeps bar and plummet; Two sides of fan-shaped angular surveying plate one straight flange have long extension bar and the short extension bar that fuses with fan-shaped angular surveying plate respectively, above-mentioned straight flange both sides at fan-shaped angular surveying plate have aperture b, c, long extension bar top has aperture d, short extension bar top has aperture a, subnasal point locating rod both sides have gathering sill, two gathering sills are slidingly connected with the aperture b that lacks the close short extension bar side of extension bar top aperture a and fan-shaped angular surveying plate respectively and lock, vertical aperture of the first vertical height bar, one side and fan-shaped angular surveying plate are rotationally connected near the aperture c of long extension bar side, the vertical aperture of the second vertical height bar, one side is rotationally connected with long extension bar top aperture d, the opposite side of the first vertical height bar has two aperture e, g, the opposite side of the second vertical height bar has two aperture f, h, two pitch-rows of two vertical height bar opposite sides are from corresponding one by one, parallel construction keeps the opposite side top aperture g of the bar one side topped hole and the first vertical height bar to be rotationally connected, parallel construction keeps the opposite side top aperture h of another side opening of bar and the second vertical height bar to be rotationally connected and locks, menton locating rod both sides have gathering sill, two gathering sills respectively with the opposite side aperture e of two vertical height bars, f is slidingly connected and locks, be carved with gauge mark at first vertical height bar middle part, hang plummet near on the aperture c of long extension bar side at fan-shaped angular surveying plate.

The groundwork principle is to pass through plane of orientation---the plummet position patient head on eye-ear plane (frankfort horizontal plane) and the dip stick makes eye-ear plane be parallel to ground; Shift Frankfurt plane to the subnasal point level by the plummet vertical ground; Throughput hornwork reading also calculates vertical height.

The present invention compares with background technology, and the beneficial effect that has is:

1. menton place: compare traditional face contact and use the about 2mm of " line " contact lucite thickness instead, metal parts thickness 1mm is more prone to push open the soft abundant soft tissue of part patient chin portion.

2. it is relatively stable to introduce Frankfurt plane acquisition data.

3. subnasal point and menton are horizontally moved out, avoid survey tool to be hindered by soft tissue.

4. its result of use amount hornwork reading is more accurate, and vertical height has repeatability.

Description of drawings

Fig. 1 is the vertical height dip stick of present clinical use.

Fig. 2 is a structural principle sketch map of the present invention.

Fig. 3 is the structural representation of fan-shaped angular surveying plate.

First step view when Fig. 4 is measurement.

Second step attitude sketch map when Fig. 5 is measurement.

Third step attitude sketch map when Fig. 6 is measurement.

Among the figure: 1, fan-shaped angular surveying plate, 1.1 long extension bars, 1.2 short extension bars, 2, the subnasal point locating rod, 3, the menton locating rod, 4, the vertical height bar, 4.1, gauge mark, 5, the vertical height bar, 6, parallel construction keeps bar, 7, plummet.

The specific embodiment

As Fig. 2, shown in Figure 3, the present invention includes fan-shaped angular surveying plate 1, subnasal

point locating rod

2,3, two vertical height bars of

menton locating rod

4,5, parallel construction keeps bar 6 and plummet 7; Two sides of fan-shaped angular surveying plate 1 one straight flanges have long extension bar 1.1 and the short extension bar 1.2 that fuses respectively, have aperture b in fan-shaped angular surveying plate 1 one straight flange both sides, c, long extension bar 1.1 tops have aperture d, short extension bar 1.2 tops have aperture a, subnasal point locating rod 2 both sides have gathering sill, two gathering sills are slidingly connected with the aperture b that lacks extension bar 1.2 top aperture a and fan-shaped angular surveying plate 1 close short extension bar 1.2 sides respectively and lock, a vertical aperture of vertical height bar 4 one sides and fan-shaped angular surveying plate 1 are rotationally connected near the aperture c of long extension bar 1.2 sides, the vertical aperture of another root vertical height bar 5 one sides is rotationally connected with long extension bar 1.1 top aperture d, the opposite side of a vertical height bar 4 has two hole e, g), the opposite side of another root vertical height bar 5 has two hole f, h, two pitch-rows of two vertical height bar opposite sides are from corresponding one by one, parallel construction keeps the opposite side topped hole g of bar 6 one side topped hole and a vertical height bar 4 to be rotationally connected, parallel construction keeps the opposite side topped hole h of bar 6 another side openings and another root vertical height bar 5 to be rotationally connected and locks, menton locating rod 3 both sides have gathering sill, two gathering sills respectively with another side opening e of two vertical height bars, f is slidingly connected and locks, be carved with gauge mark 4.1 at vertical height bar 4 middle parts, on the fan-shaped angular surveying plate 1 close aperture c of long extension bar 1.2 sides, hang plummet 7.

The main operating procedure of the present invention is as follows:

As shown in Figure 4, at first retouch out patient's one side infraorbital point and preauricular point with pen, it is Frankfurt plane that the subnasal point locating rod is positioned at these 2, please patient's head do the elevating movement on the sagittal plane this moment, when pointing to 90 ° of plumbness, the plummet on the fan-shaped angular surveying plate 17 stops action, promptly the grooves of the gauge mark 4.1 on vertical height bar 4, plummet 7 lines and 90 degree all coincide, and advise the patient to keep upper body and cervical region static relatively.

As shown in Figure 5, the patient keeps under the resting state dip stick being transferred to the operating position, be that the 2 terminal reinforcings of subnasal point locating rod are butted on patient's subnasal point, dip stick elevating movement on sagittal plane makes plummet 7 point to 90 ° of upright positions, and promptly the grooves of gauge mark 4.1, plummet 7 lines and 90 degree on vertical height bar 4 all coincide.Frankfurt plane shifted and finished this moment.

As shown in Figure 6, hold parallel construction at last and keep bar 6 ends, turning joint moves menton locating rod 3 and touches patient's menton, afterburning this soft tissue thickness that reduces of appropriateness.According to the reading on the fan-shaped angular surveying plate 1, needing to obtain the vertical height of measurement.

Subnasal point locating rod 2 and menton locating rod 3 can slide along chute and accurately locate subnasal point and menton in the use.

Illustrate: as shown in Figure 1, the distance that the d of vertical height bar 4 point is ordered to f is 100mm; Subnasal point locating rod two gathering sill length 30mm; Menton locating rod two gathering sill length 50mm.When the reading that takes measurement of an angle is 60 °, vertical height=100mm*sin60 °, can slide with the menton locating rod according to patient's face structure difference subnasal point locating rod contacts to satisfy fullest.Under simple quick operating prerequisite, guarantee to obtain the credibility and the repeatability of data.It is that the sheet metal of 1-1.5mm or the lucite of thickness 2-3mm are made that material of the present invention can adopt thickness.

The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.

Claims

1. a kind of oral cavity occlusal vertical height measuring ruler is characterized in that: comprise fan-shaped angle measuring plate (1), the subnasal point positioning rod (2), the submental point positioning rod (3), two vertical height rods (4, 5), the parallel structure maintains the rod (6) and the lead pendant (7); the two sides of the straight side of the fan-shaped angle measuring plate (1) respectively have long extension rods (1.1) integrated with the fan-shaped angle measuring plate (1) and the short extension rod (1.2), there are small holes b and c on both sides of the above-mentioned straight side of the fan-shaped angle measuring plate (1), the top of the long extension rod (1.1) has a small hole d, and the short extension rod (1.2) There is a small hole a at the top, and guide grooves are respectively opened on both sides of the nose point positioning rod (2). The small hole b near the side of the short extension rod (1.2) is slidably connected and locked, and the small hole at the top of the side of the first vertical height rod (4) is connected to the fan-shaped angle measuring plate (1) near the side of the long extension rod (1.1) The small hole c at the top of the second vertical height rod (5) is connected by rotation with the small hole d at the top of the long extension rod (1.1), and the other side of the first vertical height rod (4) is opened There are two holes e, g, the other side of the second vertical height bar (5) has other two small holes f, h, the distances of the two holes on the other side of the two vertical height bars are one-to-one correspondence, parallel The hole at the top of one side of the structure holding bar (6) is rotatably connected with the other side top hole g of the first vertical height bar (4), and the other side hole of the parallel structure holding bar (6) is connected with the second vertical height bar (5) The small hole h at the top of the other side is connected and locked by rotation. There are guide grooves on both sides of the submental point positioning rod (3), and the two guide grooves slide with the small holes e and f on the other side of the two vertical height rods respectively. Connect and lock, engrave a positioning line (4.1) in the middle of the first vertical height bar (4), hang the lead pendant on the small hole c on the side of the fan-shaped angle measuring plate (1) close to the long extension bar (1.1) ( 7).