CN113576697A - Auxiliary forming plane shovel for positioning vertical distance dead point of wax column and wax column forming method - Google Patents
Auxiliary forming plane shovel for positioning vertical distance dead point of wax column and wax column forming method Download PDFInfo
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- CN113576697A CN113576697A CN202111010820.5A CN202111010820A CN113576697A CN 113576697 A CN113576697 A CN 113576697A CN 202111010820 A CN202111010820 A CN 202111010820A CN 113576697 A CN113576697 A CN 113576697A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/34—Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]
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Abstract
The invention provides a wax column vertical distance dead point positioning auxiliary forming plane shovel and a wax column forming method, wherein the wax column vertical distance dead point positioning auxiliary forming plane shovel comprises a substrate, a shovel shaft and a shovel shaft, wherein the substrate is used for bearing a bent wax strip; providing a plane gauge for assisting the wax strip in forming a mandibular preformed wax levee; acquiring the facial features of a patient, and adjusting the mandible preformed wax dike according to the facial features to obtain a mandible personalized wax dike according with the facial features of the patient; providing a plane shovel, and heating the plane shovel until the personalized wax dike of the lower jaw can be melted; aligning the central axis of the plane shovel with the central axes of the individual wax dikes of the lower jaw and the lower jaw model, and aligning the bottom of the plane shovel with the positions of the front edges of the molar back cushions at the two sides of the lower jaw model; and (3) carrying out wax ironing by contacting the surface shovel with the lower jaw personalized wax embankment surface until the wax plane of the lower jaw personalized wax embankment in the forming hole is higher than the surface of the surface shovel, moving away the surface shovel, and forming the wax column positioning point on the surface of the lower jaw personalized wax embankment.
Description
Technical Field
The invention relates to the technical field of complete denture manufacturing, in particular to a wax column vertical distance dead point positioning auxiliary forming plane shovel and a wax column forming method.
Background
In clinical diagnosis and treatment of complete denture jaw position relation preparation, the determination and recording of vertical distance and horizontal relation by using the occlusal support is an important mode for recording jaw position relation, and the final quality of the occlusal support is directly influenced by the manufacturing quality of a wax levee plane, a wax levee dental arch form, a wax levee dental arch width, a wax levee height and the like. When the pre-formed wax levee of the upper and lower jaw denture bases is placed in the mouth, the pre-formed wax levee is gradually adjusted to the personalized wax levee which is more in line with the facial phase of a patient by a clinician and has a proper vertical distance, and at the moment, the state that the personalized wax levee of the upper and lower jaw denture bases is occluded together is recorded as a horizontal relation. In order to reduce the error of the personalized wax levees of the upper jaw and the lower jaw bite holders during occlusion, the contact mode of two personalized wax levee planes of the upper jaw and the lower jaw is changed into the contact mode of four vertical distance dead points of the personalized wax levee plane of the upper jaw and the rear dental area of the lower jaw, so that the deviation of the horizontal relation caused by the fact that the wax levee planes are uneven, inclined and different in hardness degree is effectively reduced. For a complete denture beginner, the judgment on the dentition position of an edentulous jaw, the form of a dental arch and the opposite relation of the dental arch is lacked, so that the positioning of a vertical distance dead point is easy to be inaccurate, and the error of obtaining the horizontal relation is large.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a wax column vertical distance dead point positioning auxiliary forming plane shovel and a wax column forming method, which solve the technical problem that the error of obtaining the horizontal relation is large due to inaccurate vertical distance dead point positioning in the prior art.
According to an embodiment of the invention, the invention provides a wax column vertical distance dead point positioning auxiliary forming method in a first aspect, which comprises the following steps:
providing a substrate, wherein the substrate is used for bearing the bent wax strips;
providing a plane gauge for assisting the wax strip in forming a mandibular preformed wax levee;
acquiring the facial features of a patient, and adjusting the mandible preformed wax dike according to the facial features to obtain a mandible personalized wax dike according with the facial features of the patient;
providing a plane shovel, and heating the plane shovel until the personalized wax dike of the lower jaw can be melted;
aligning the central axis of the plane shovel with the central axes of the individual wax dikes of the lower jaw and the lower jaw model, and aligning the bottom of the plane shovel with the positions of the front edges of the molar back cushions at the two sides of the lower jaw model;
and (3) carrying out wax ironing by contacting the surface shovel with the lower jaw personalized wax embankment surface until the wax plane of the lower jaw personalized wax embankment in the forming hole is higher than the surface of the surface shovel, moving away the surface shovel, and forming the wax column positioning point on the surface of the lower jaw personalized wax embankment.
Further, the plane rule includes upper jaw board, lower jaw board and well spool, upper jaw board and lower jaw board are connected respectively the both ends of well spool, upper jaw board and lower jaw board all are arc and sunken one side relative, the upper jaw board the lower jaw board with the axis collineation of well spool.
Further, the plane shovel comprises a shovel main body and a handle, the shovel main body is connected to the handle, and a forming hole used for forming a wax column positioning point on the surface of the lower jaw personalized wax embankment is formed in the shovel main body.
Furthermore, the forming holes comprise a plurality of rectangular holes, and the rectangular holes are symmetrical left and right relative to the central axis of the shovel main body.
Furthermore, a connector is fixedly arranged on the side surface of the shovel main body, the connector is rotatably connected with one end of the handle, and a control mechanism used for controlling the connector and the shovel main body to rotate synchronously is arranged on the handle.
Furthermore, a through hole penetrates through the inside of the handle along the axis of the handle, and one end of the connecting body, which is far away from the shovel main body, extends into the through hole and is rotatably connected into the through hole through a bearing; the control mechanism comprises a slider which is slidably connected to the side face of the handle along the axis of the handle, a rack which is fixedly connected with the slider in the through hole, a rotating shaft which is rotatably connected in the through hole, a driving gear which is coaxially and fixedly connected to the rotating shaft, a first bevel gear and a second bevel gear which is coaxially and fixedly connected to the connecting body, wherein the driving gear and the first bevel gear are arranged at one end in the through hole, the connecting body is meshed with the first bevel gear, the driving gear and the rack are meshed with each other, and the side face of the handle is provided with an opening through which the top of the slider extends out of the handle.
Furthermore, the handle is hollow, and one end of the connecting body, which is far away from the shovel main body, extends into the handle and is rotatably connected into the handle through a bearing; the control mechanism comprises a worm extending into the handle and coaxially and fixedly connected with one end of the connecting body and a worm wheel rotationally connected with the handle and in transmission connection with the worm, and an opening used for extending the worm wheel part is formed in the side face of the handle.
Further, the tops of a group of symmetrical rectangular holes close to the top of the shovel main body are connected through arch holes protruding towards the top of the shovel main body.
Furthermore, a central line mark or a central line groove perpendicular to the handle is arranged on the shovel main body, the forming holes are bilaterally symmetrical relative to the central line mark or the central line groove, a bayonet is arranged at the bottom of the shovel main body, and the center of the bayonet penetrates through the central line mark or the central line groove.
Further, the shovel main part includes the edge left side shovel and the right shovel of the axis bilateral symmetry of shovel main part, left side shovel and right shovel top are articulated, two liang of symmetric distributions of rectangular hole are in on left side shovel and the right shovel, still be equipped with the fixed establishment that is used for left side shovel and right shovel to rotate the back locking around its hinged end on left side shovel and the right shovel.
The invention also provides a wax column vertical distance dead point positioning auxiliary forming plane shovel which is the plane shovel of the first aspect of the invention.
Compared with the prior art, the invention has the following beneficial effects:
1. through the wax column forming method, the method can efficiently replace a mode of manually cutting the positioning point of the wax column, reduce the error of the upper and lower occlusal support wax levees during occlusion, and more accurately position the vertical distance stop point.
2. The wax strip after being bent is placed on the plane gauge, namely the preformed wax dike is calibrated by the plane gauge, so that a beginner or an unskilled operator can judge whether the plane of the wax strip after being bent is flat or not and whether the dental arch form and the width are matched, if the plane of the wax dike is not flat or not matched, the trimming of the plane of the wax dike, the dental arch form and the width can be assisted, and the wax strip can form the lower jaw preformed wax dike more quickly.
3. The forming hole in the plane shovel can quickly position the first front molar site and the first molar site on the two sides of the personalized wax dike of the lower jaw, and the advantage of heating and waxing of the forming shovel is utilized, so that the operation process of manually cutting the wax dike to form the vertical distance stop is simplified, the error of manufacturing the vertical distance stop is reduced, and the clinical operation time is shortened.
4. The shovel main body can be turned without turning the handle when wax is melted by the aid of the control mechanism, and the wax melting process is faster and more convenient.
5. Through the left shovel and the right shovel which are symmetrical, the left shovel and the right shovel can be rotated to adjust the distance between the left vertical distance stop point and the right vertical distance stop point, so that the plane shovel can adapt to the sizes of dental arches and dentitions in practice through adjustment.
Drawings
Fig. 1 is a schematic structural diagram of a plane gauge in an embodiment of the invention.
Fig. 2 is another schematic structural diagram of a plane gauge in the embodiment of the invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram of a flat shovel in the embodiment of the invention.
FIG. 5 is a schematic cross-sectional view of the handle of a flat shovel according to an embodiment of the present invention
Fig. 6 is another schematic structural view of the shovel body according to the embodiment of the invention.
Fig. 7 is a partial cross-sectional view of the slide way portion and the slide way portion of fig. 6.
In the above drawings: 1-1, upper jaw plate; 1-2, a mandible board; 1-3, a middle bobbin; 1-4, connecting rod; 1-5, lightening holes; 1-6, a middle rod; 1-7, adjusting a rod; 1-8, locking holes; 1-9, locking screws; 1-10, track; 1. a shovel body; 2. a linker; 3. a handle; 4. an arcuate aperture; 5. a rectangular hole; 6. marking a central line; 7. a bayonet; 8. a through hole; 9. a bearing; 10. a slider; 11. a rack; 12. a rotating shaft; 13. a drive gear; 14. a first bevel gear; 15. a second bevel gear; 16. an opening; 17. a left shovel; 18. a right shovel; 19. a slide groove portion; 20. a slide rail portion; 21. connecting holes; 22. a mating hole; 23. and locking the block.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
The first embodiment is as follows:
the embodiment of the invention discloses a wax column vertical distance dead center positioning auxiliary forming method, which comprises the following steps:
providing a substrate, wherein the substrate is used for bearing the bent wax strips; the base is a base which can withstand repeated occlusion and is not deformed, and then the long-strip-shaped wax strip is bent and fixed on the base.
Providing a plane gauge for assisting the wax strip in forming a mandibular preformed wax levee;
acquiring the facial features of a patient, and adjusting the mandible preformed wax dike according to the facial features to obtain a mandible personalized wax dike according with the facial features of the patient; in this embodiment, facial features of a patient may be acquired, and then the preformed wax levee may be engraved by means of 3D printing, so as to obtain the mandibular personalized wax levee. In another embodiment, the prepared mandible pre-wax can be placed in the mouth of a patient, and the pre-wax bank can be adjusted according to the face shape of the patient.
Providing a plane shovel, and heating the plane shovel until the personalized wax dike of the lower jaw can be melted;
aligning the central axis of the plane shovel with the central axes of the individual wax dikes of the lower jaw and the lower jaw model, and aligning the bottom of the plane shovel with the positions of the front edges of the molar back cushions at the two sides of the lower jaw model;
the surface shovel is contacted with the surface of the lower jaw personalized wax embankment to carry out wax ironing until the wax plane of the lower jaw personalized wax embankment in the forming hole is higher than the surface of the surface shovel, the surface shovel is moved away, and the surface of the lower jaw personalized wax embankment forms the wax column positioning point;
fine trimming the positioning point of the wax column; the edges are smoothed and the excess wax powder is removed.
By the forming method, the wax column positioning points on the surface of the personalized wax dike of the lower jaw can be quickly and conveniently manufactured, the horizontal relation error caused by the protrusion of the lower jaw of a patient can be effectively avoided, and the vertical distance stopping points are respectively positioned at the first front molar positions of the lower jaw at two sides and the first molar positions of the lower jaw at two sides.
As shown in fig. 1, the plane gauge comprises plate-shaped upper and lower jaw plates 1-1 and 1-2 and a middle axis 1-3, wherein the upper and lower jaw plates 1-1 and 1-2 are respectively connected to two ends of the middle axis 1-3, the upper and lower jaw plates 1-1 and 1-2 are opposite to each other at one side of arc and concave, and the central axes of the upper and lower jaw plates 1-1, 1-2 and the middle axis 1-3 are collinear. When the device is used, the plane gauge can help judge whether the plane of the preformed wax levee is flat or not, if the plane of the preformed wax levee is uneven, the plane of the preformed wax levee can be assisted to be trimmed, so that errors in manufacturing the preformed wax levee are avoided, and the differentiation of the preformed wax levee is reduced.
As shown in fig. 2 to 3, the middle bobbin 1 to 3 is provided with an adjusting member for adjusting the curvature of the upper and lower jaw plates 1 to 1 and 1 to 2. The radian of the upper jaw plate 1-1 and the lower jaw plate 1-2 in the drawing 1 can not be adjusted, when the radian of the jaw plates needs to be adjusted, the radian can be adjusted through the adjusting piece in the drawing 2, after the radian of each jaw plate is adjusted, an operator can directly place the prefabricated wax levee on the plane gauge, and then adjust the prefabricated wax levee according to the sizes of the upper jaw plate 1-1 and the lower jaw plate 1-2, so that the size of the wax levee is adjusted more quickly, and the manufacturing time of the wax levee can be effectively shortened. The occlusion plane of the wax levee can be adjusted in an auxiliary manner by comparing the plane of the plane gauge with the plane of the preformed wax levee; the widths of the arch of the preformed wax levee and the front and rear dental arches are adjusted in an auxiliary way by comparing the plane gauge arch with the arch of the preformed wax levee; the left and right side centerlines of the preformed wax levee are indicated by the central axis.
Specifically, as shown in fig. 2, in the present embodiment, two connecting rods 1-4 are respectively hinged on one side surface of the dented upper jaw plate 1-1 and lower jaw plate 1-2, and the other ends of the two connecting rods 1-4 connected with the same jaw plate are coaxially hinged on the middle axis 1-3, and the upper jaw plate 1-1 and lower jaw plate 1-2 are both elastic, specifically, the upper jaw plate 1-1 and lower jaw plate 1-2 are made of elastic material, and the arc of each jaw plate can be indirectly driven to increase or decrease by the rotation of each connecting rod 1-4 at both ends of the middle axis 1-3. The adjusting part comprises two adjusting rods 1-7 sliding on the middle bobbin 1-3 along the length direction of the middle bobbin 1-3, the two adjusting rods 1-7 are respectively arranged corresponding to the upper jaw plate 1-1 and the lower jaw plate 1-2, each adjusting rod 1-7 is hinged with two middle rods 1-6, one ends of the two middle rods 1-6 corresponding to the upper jaw plate 1-1 and deviating from the adjusting rods 1-7 are respectively hinged on two connecting rods 1-4 connected with the upper jaw plate 1-1, one ends of two middle rods 1-6 corresponding to the lower jaw plates 1-2 and deviating from the adjusting rods 1-7 are respectively hinged on two connecting rods 1-4 connected with the lower jaw plates 1-2, and each adjusting rod 1-7 is also provided with a locking piece used for locking the adjusting rod 1-7 on the middle bobbin 1-3. The middle rods 1-6 can be driven to rotate around the point hinged with the middle thread shaft 1-3 by sliding the adjusting rods 1-7, and the two ends of each jaw plate can be pulled to be close to or far away from each other in the process of reverse rotation of the two middle rods 1-6 connected with the same jaw plate, so that the radian of each jaw plate is adjusted. In this embodiment, the two adjusting rods 1-7 are respectively arranged at two ends of the middle bobbin 1-3, and the two adjusting rods 1-7 can be arranged in the middle of the middle bobbin 1-3 during actual design, as long as the radian of each jaw plate can be adjusted when each adjusting rod 1-7 slides along the central axis direction of the middle bobbin 1-3.
As shown in fig. 2, in the present embodiment, the middle bobbin 1-3 is provided with a track 1-10 extending along the length of the middle bobbin 1-3, and each adjusting rod 1-7 is provided with a sliding slot slidably connected to the track 1-10. The sliding direction of each adjusting rod 1-7 is limited to slide along the central axis direction of the central axis 1-3 through the connection of the sliding groove and the track 1-10, and the adjusting effectiveness is improved.
In a further scheme, as shown in fig. 2 and 3, a locking groove is arranged on the middle spool 1-3, a plurality of locking holes 1-8 are sequentially arranged on the adjusting rod 1-7 along the length direction of the adjusting rod, and the locking piece comprises locking screws 1-9 which are in threaded connection with the locking groove and the corresponding locking holes 1-8. When the adjusting rods 1-7 need to be adjusted in a sliding mode, the locking screws 1-9 are screwed out of the locking holes 1-8 and the locking grooves, and then the radian can be adjusted by sliding the adjusting rods 1-7; after the adjustment is finished, namely after the radian of each jaw plate is adjusted, the locking screws 1-9 are screwed into the locking holes 1-8 on the adjusting rods 1-7 and the locking grooves on the middle bobbins 1-3 corresponding to the locking screws, so that the adjusted locking can be realized.
In order to lock the adjusting rods 1-7 after sliding, the adjusting device can be further realized by a structure that each adjusting rod 1-7 is respectively in threaded connection with a screw rod, the axis of each screw rod is parallel to each adjusting rod 1-7, and the end of each screw rod, which is far away from the screw rod, is rotatably connected with the middle spool 1-3. Through the rotation of the screw rod, the adjusting rod 1-7 in threaded connection with the screw rod can slide along the middle bobbin 1-3, and after the adjustment is finished, the adjusting rod 1-7 can be fixed to the middle bobbin 1-3 through self-locking of the screw rod.
As shown in fig. 2, the upper jaw plate 1-1 is an elliptic plate, the lower jaw plate 1-2 is a parabolic plate, and the upper jaw plate 1-1 and the lower jaw plate 1-2 are designed into different shapes, mainly because the elliptic and parabolic shapes are similar to the dentition shape of natural teeth, a better foundation can be provided for the manufacture of the wax levee. Preferably, the maxillary plate 1-1 of FIG. 2 has an anterior segment width a of 3.5mm, a posterior segment b of 8.5mm, and a maxillary height c of 45 mm; the width d of the front tooth section of the lower jaw plate 1-2 is 3mm, the width e of the rear tooth section is 7mm, and the height f of the lower jaw is 40 mm; the total height g of the plane gauge is 110mm, and the height of the middle bobbin is 80 mm. The specific sizes of the upper jaw plate and the lower jaw plate are most consistent with the dentition size of natural teeth, so that the wax levee can be better assisted to be manufactured.
As shown in fig. 2, both ends of the middle bobbin 1-3 are pointed and the pointed ends point to the central axes of the upper and lower jaw plates 1-1 and 1-2. Through the arrangement of the sharp corner, an operator can directly align the center line of the wax levee with the end of the sharp corner, and the wax levee can be adjusted more quickly after alignment.
And lightening holes 1-5 are also formed in the middle spool 1-3. In order to reduce the weight of the plane gauge, a plurality of lightening holes 1-5 are arranged on a center line shaft 1-3, the lightening holes 1-5 can be arranged on the center line shaft 1-3 and positioned at the back of the track 1-10, and when the plane gauge is designed, the lightening holes 1-5 are blind holes and extend along the length direction of the track 1-10; the lightening holes 1-5 can also be arranged at the positions, close to the position between the two jaw plates, of the two sides of the middle bobbin 1-3, and when the lightening holes 1-5 are arranged at the positions, the lightening holes can be conveniently held by an operator.
As shown in fig. 4, in the embodiment of the present invention, an auxiliary shaping flat shovel (called a flat shovel for short) for positioning a wax column vertically away from a dead point includes a shovel main body 1, a connector 2 and a handle 3, the shovel main body 1 is connected to the handle 3 through the connector 2, and a shaping hole for shaping a wax column positioning point on a lower jaw personalized wax levee surface is formed in the shovel main body 1. The connecting body 2 comprises a trapezoid block and a rectangular block, the lower bottom of the trapezoid block is fixedly connected with the side face of the shovel main body 1, the upper bottom of the trapezoid block is fixedly connected with the rectangular block, and one end, far away from the trapezoid block, of the rectangular block is inserted into a rectangular long hole in the end portion of the handle 3. Preferably, the shovel main body 1 is rectangular, and has a length of 12cm and a width of 10cm, the lower bottom of the trapezoid block is preferably 3cm, the upper bottom of the trapezoid block is preferably 1cm, and the distance between the upper bottom and the lower bottom of the trapezoid block is 1.5 cm. The shovel main body 1 is made of a stainless steel plate or an aluminum alloy material, and can conduct heat and conduct heat quickly, so that the shovel main body 1 can be heated to a required temperature quickly and used for waxing the lower jaw personalized wax embankment plane; the material of the handle 3 is preferably a cylindrical wood handle structure, the end part of the handle is wrapped by a rectangular block, the diameter of the handle 3 is 2cm and the height of the handle is 10cm, so that the heat transfer from the shovel main body 1 to the handle 3 can be effectively blocked, and an operator can be prevented from being scalded.
Further, the forming holes comprise a plurality of rectangular holes 5, and the rectangular holes 5 are symmetrical left and right relative to the central axis of the shovel body 1. Preferably, four rectangular holes 5 are arranged, and are distributed on the left side and the right side of the shovel main body 1 in pairs, and the four rectangular holes 5 are used for forming two groups of corresponding positioning points on the dentitions on the left side and the right side of the personalized wax levee of the lower jaw.
The plane shovel is used for rapidly manufacturing four wax column positioning points on the lower jaw personalized wax dike, the operation is convenient, the four rectangular holes 5 correspond to the wax column positioning points to be manufactured one by one, and errors generated in manual manufacturing can be effectively reduced through forming holes which accord with the standard of dentition in an oral cavity and are fixed in position.
As shown in fig. 4-5, in this embodiment, the connecting body 2 is rotatably connected to one end of the handle 3, and the handle 3 is provided with a control mechanism for controlling the connecting body 2 and the shovel body 1 to rotate synchronously. During actual operation, after the shovel main body 1 is heated, an operator uses one hand to enable the bottom of the shovel main body 1 to be close to the front edge of the rear cushion of the teeth grinding from two sides of the lower jaw model, then the shovel main body 1 is gradually rotated around the bottom of the shovel main body 1, so that the shovel main body 1 is gradually attached to the surface of the lower jaw personalized wax embankment from the bottom to the top, at the moment, in order to enable the attachment to be better carried out, the lower jaw personalized wax embankment is operated by the other hand of the operator, the lower jaw model is turned over, and then wax melting is started. Set up control mechanism in 3 handles and just can not control the upset of shovel main part 1 when handle 3, operation personnel can be more convenient operation.
As shown in fig. 5, specifically, a through hole 8 penetrates through the inside of the handle 3 along the axis thereof, and one end of the connecting body 2, which is away from the shovel main body 1, extends into the through hole 8 and is rotatably connected in the through hole 8 through a bearing 9; the control mechanism comprises a sliding block 10 which is connected to the side surface of the handle 3 in a sliding manner along the axis of the handle 3, a rack 11 which is fixedly connected with the sliding block 10 in the through hole 8, a rotating shaft 12 which is connected in the through hole 8 in a rotating manner, a driving gear 13 and a first bevel gear 14 which are coaxially and fixedly connected to the rotating shaft 12, and a second bevel gear 15 which is coaxially and fixedly connected to one end of the connecting body 2 extending into the through hole 8 and is meshed with the first bevel gear 14, wherein the driving gear 13 is meshed with the rack 11, and an opening 16 for the top of the sliding block 10 to extend out of the handle 3 is arranged on the side surface of the handle 3. During operation, a user only needs to control the sliding block 10 to slide along the axis of the handle 3 by using the thumb of the hand holding the handle 3, and then the rack 11 can be driven to slide, so as to control the driving gear 13 to rotate, the rotation of the driving gear 13 drives the first bevel gear 14 to rotate, and then the second bevel gear 15 is driven to rotate, so as to realize the rotation of the connecting body 2 and the shovel main body 1. Generally, when the cylindrical handle 3 is held, the thumb is placed along the axis of the handle 3, so that the thumb can smoothly drive the sliding block 10 to slide, and the operation is convenient and fast.
Preferably, as shown in fig. 4, in the present embodiment, the tops of two rectangular holes 5 near the top of the shovel body 1 are connected by an arcuate hole 4 protruding toward the top of the shovel body 1. The radian of the arch-shaped hole 4 is matched with the radian of a dental arch in the oral cavity of a human, so that the arch-shaped hole 4 is mainly designed to be matched with a lower jaw personalized wax dike, the outer edge of the arch-shaped hole 4 is overlapped with the arc-shaped track of the side, opposite to the rectangular hole 5, of the rectangular hole, meanwhile, the weight of the shovel main body 1 can be effectively reduced due to the design of the arch-shaped hole 4, and the operation is more labor-saving.
Preferably, as shown in fig. 4, the shovel body 1 is provided with a central line mark 6 or a central line groove perpendicular to the handle 3, wherein the central line mark 6 is a straight line drawn on the surface of the shovel body 1 by a pigment or a marker pen and represents the central axis of the shovel body 1, and the central line groove is a straight line groove formed on the surface of the shovel body 1 along the central axis of the shovel body 1. The central line mark 6 or the central line groove is used for marking the central axis of the shovel main body 1. As shown in fig. 4, each of the shaped holes is symmetrical with respect to the central line 6 or the central line groove. The middle line mark 6 or the middle line groove is perpendicular to the axis of the handle 3, a bayonet 7 is arranged at the bottom of the shovel body 1, and the center of the bayonet 7 penetrates through the middle line mark 6 or the middle line groove. The middle line mark 6 or the middle line groove can enable an operator to position the shovel body 1 at the time of enabling the bottom of the shovel body to be close to the front edge of the lower jaw model bilateral molar rear cushion, and the bayonet 7 is used for positioning the shovel body 1 at the bottom middle point of the shovel body and the front edge of the lower jaw model bilateral molar rear cushion more accurately.
The control mechanism in this embodiment is specifically: the handle 3 is hollow, and one end of the connecting body 2, which is far away from the shovel main body 1, extends into the handle 3 and is rotatably connected into the handle 3 through a bearing 9; the control mechanism comprises a worm (not shown in the figure) coaxially and fixedly connected with one end of the connecting body 2 extending into the handle 3 and a worm wheel (not shown in the figure) rotationally connected with the handle 3 in a transmission manner, and an opening 16 for extending a worm wheel part is formed in the side surface of the handle 3. Through the power transmission of worm gear, make the precision of operation higher, and only need the thumb constantly to rub the part that the worm wheel stretches out opening 16, make the worm wheel rotate and then drive the worm and rotate to make connector 2 driven the rotation, realize control function, operate convenient and fast more.
As shown in fig. 6, in this embodiment, the shovel body 1 includes a left shovel 17 and a right shovel 18 which are bilaterally symmetric along the central axis of the shovel body 1, the top of the left shovel 17 is hinged to the top of the right shovel 18, two pairs of rectangular holes 5 are symmetrically distributed on the left shovel 17 and the right shovel 18, and a fixing mechanism for locking the left shovel 17 and the right shovel 18 after rotating around the hinged end is further disposed on the left shovel 17 and the right shovel 18. Since the widths of the dental arches are slightly different, in order to make the plane shovel of the present embodiment more practical in operation, the shovel body 1 is divided into a left shovel 17 and a right shovel 18, and the left shovel 17 and the right shovel 18 can adjust the distance between the forming holes on the left shovel 17 and the right shovel 18 when rotating around the top hinged point, so as to adjust the relative position of the vertical distance dead center.
In a further scheme, as shown in fig. 6 and 7, the fixing mechanism includes a sliding groove portion 19 and a sliding rail portion 20 respectively fixedly arranged on the opposite sides of the left shovel 17 and the right shovel 18, and a locking member, the cross section of the sliding groove portion 19 is concave, the sliding groove portion 19 is arc-shaped, the free end of the sliding rail portion 20 is slidably connected in the sliding groove portion 19, the sliding track is arc-shaped, a connecting hole 21 is formed in the sliding rail portion 20, a plurality of matching holes 22 are formed in the sliding groove portion 19 along the sliding track, a locking block 23 is slidably connected in the connecting hole 21 along the hole axis direction, and the locking block 23 is inserted into the matching hole 22 when the connecting hole 21 is aligned with any matching hole 22. When the angle between the left shovel 17 and the right shovel 18 needs to be adjusted, the locking block 23 is pulled up first, so that the bottom of the locking block 23 comes out of the matching hole 22, then the sliding rail part 20 is pushed to slide towards the sliding groove part 19, and after the angle is adjusted to a proper position (when the connecting hole 21 is aligned with one of the matching holes 22), the locking block 23 in the connecting hole 21 can be pressed down downwards, so that the bottom of the locking block 23 is inserted into the corresponding matching hole 22, and the locking of the sliding rail part 20 and the sliding groove part 19 is realized. Preferably, as shown in fig. 7, in order to prevent the locking block 23 from being disengaged from the top of the connection hole 21, the connection hole 21 is designed to be inverted T-shaped, the radial dimension of the fitting hole 22 is designed to be smaller than the maximum dimension of the connection hole 21, the locking block 23 is designed to be a T-shaped block, and an annular block is radially arranged on the outer surface of the middle part of the T-shaped block, and is slidably arranged at the large end of the connection hole 21, so that the locking block 23 is prevented from being disengaged from the connection hole 21 due to the design of the annular block.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. A wax column vertical distance dead point positioning auxiliary forming method is characterized by comprising the following steps:
providing a substrate, wherein the substrate is used for bearing the bent wax strips;
providing a plane gauge for assisting the wax strip in forming a mandibular preformed wax levee;
acquiring the facial features of a patient, and adjusting the mandible preformed wax dike according to the facial features to obtain a mandible personalized wax dike according with the facial features of the patient;
providing a plane shovel, and heating the plane shovel until the personalized wax dike of the lower jaw can be melted;
aligning the central axis of the plane shovel with the central axes of the individual wax dikes of the lower jaw and the lower jaw model, and aligning the bottom of the plane shovel with the positions of the front edges of the molar back cushions at the two sides of the lower jaw model;
and (3) carrying out wax ironing by contacting the surface shovel with the lower jaw personalized wax embankment surface until the wax plane of the lower jaw personalized wax embankment in the forming hole is higher than the surface of the surface shovel, moving away the surface shovel, and forming the wax column positioning point on the surface of the lower jaw personalized wax embankment.
2. A method of assistant forming of a wax column vertical distance dead center positioning as claimed in claim 1, wherein: the plane rule includes upper jaw board, lower jaw board and well spool, upper jaw board and lower jaw board are connected respectively the both ends of well spool, upper jaw board and lower jaw board all are arc and sunken one side relative, the upper jaw board the lower jaw board with the axis collineation of well spool.
3. A method of assistant forming of a wax column vertical distance dead center positioning as claimed in claim 1, wherein: the plane shovel comprises a shovel main body and a handle, the shovel main body is connected to the handle, and a forming hole used for forming a wax column positioning point on the surface of the lower jaw personalized wax embankment is formed in the shovel main body.
4. A method of assisting in forming a wax column in a vertical distance from a dead center as defined in claim 3, wherein: the shovel is characterized in that a connecting body is fixedly arranged on the side face of the shovel main body, the connecting body is rotatably connected with one end of the handle, and a control mechanism used for controlling the connecting body and the shovel main body to rotate synchronously is arranged on the handle.
5. The method of claim 4, wherein the method comprises: a through hole penetrates through the interior of the handle along the axis of the handle, and one end of the connecting body, which is far away from the shovel main body, extends into the through hole and is rotatably connected into the through hole through a bearing; the control mechanism comprises a slider which is slidably connected to the side face of the handle along the axis of the handle, a rack which is fixedly connected with the slider in the through hole, a rotating shaft which is rotatably connected in the through hole, a driving gear which is coaxially and fixedly connected to the rotating shaft, a first bevel gear and a second bevel gear which is coaxially and fixedly connected to the connecting body, wherein the driving gear and the first bevel gear are arranged at one end in the through hole, the connecting body is meshed with the first bevel gear, the driving gear and the rack are meshed with each other, and the side face of the handle is provided with an opening through which the top of the slider extends out of the handle.
6. The method of claim 4, wherein the method comprises: the handle is hollow, and one end of the connecting body, which is far away from the shovel main body, extends into the handle and is rotatably connected into the handle through a bearing; the control mechanism comprises a worm extending into the handle and coaxially and fixedly connected with one end of the connecting body and a worm wheel rotationally connected with the handle and in transmission connection with the worm, and an opening used for extending the worm wheel part is formed in the side face of the handle.
7. A method of assisting in forming a wax column in a vertical distance from a dead point as defined in any one of claims 3 to 6, wherein: the tops of a group of symmetrical rectangular holes close to the top of the shovel main body are connected through arch holes protruding towards the top of the shovel main body.
8. A method of assisting in forming a wax column in a vertical distance from a dead point as defined in any one of claims 3 to 6, wherein: the forming hole is bilaterally symmetrical relative to the central line mark or the central line groove, a bayonet is arranged at the bottom of the shovel main body, and the center of the bayonet penetrates through the central line mark or the central line groove.
9. A method of assisting in forming a wax column in a vertical distance from a dead center as defined in claim 7, wherein: the shovel main part includes the edge left side shovel and the right shovel of the axis bilateral symmetry of shovel main part, left side shovel and right shovel top are articulated, two liang of symmetric distributions of rectangular hole are in on left side shovel and the right shovel, still be equipped with the fixed establishment that is used for left shovel and right shovel to rotate the back locking around its hinged end on left side shovel and the right shovel.
10. A wax pillar vertical distance dead point positioning auxiliary forming plane shovel, characterized in that the wax pillar vertical distance dead point positioning auxiliary forming plane shovel is a plane shovel according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010820.5A CN113576697B (en) | 2021-08-31 | 2021-08-31 | Auxiliary forming plane shovel for positioning vertical distance stopping point of wax column and wax column forming method |
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| CN202111010820.5A CN113576697B (en) | 2021-08-31 | 2021-08-31 | Auxiliary forming plane shovel for positioning vertical distance stopping point of wax column and wax column forming method |
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| JP2011062473A (en) * | 2009-09-18 | 2011-03-31 | Munetaka Yahada | Rigid plate having simulated three-dimensional shape of molar and premolar teeth used in manufacturing denture |
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| CN205814463U (en) * | 2016-05-18 | 2016-12-21 | 盐城卫生职业技术学院 | A kind of dentistry wax dike plane finishing device |
| CN206026459U (en) * | 2016-06-21 | 2017-03-22 | 上海市徐汇区牙病防治所 | Supplementary device of confirming jaw position relation |
| CN108451661A (en) * | 2018-03-09 | 2018-08-28 | 爱迪特（秦皇岛）科技股份有限公司 | Oral cavity digitizing function pallet and its application method with customization aesthetics |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011062473A (en) * | 2009-09-18 | 2011-03-31 | Munetaka Yahada | Rigid plate having simulated three-dimensional shape of molar and premolar teeth used in manufacturing denture |
| CN202235744U (en) * | 2011-09-20 | 2012-05-30 | 战文吉 | Teeth arrangement guide plate for complete denture |
| CN205814463U (en) * | 2016-05-18 | 2016-12-21 | 盐城卫生职业技术学院 | A kind of dentistry wax dike plane finishing device |
| CN206026459U (en) * | 2016-06-21 | 2017-03-22 | 上海市徐汇区牙病防治所 | Supplementary device of confirming jaw position relation |
| CN108451661A (en) * | 2018-03-09 | 2018-08-28 | 爱迪特（秦皇岛）科技股份有限公司 | Oral cavity digitizing function pallet and its application method with customization aesthetics |
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| CN113576697B (en) | 2022-07-22 |
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