CN111803119A - Tooth apex sheet projector based on angular line and working method - Google Patents
Tooth apex sheet projector based on angular line and working method Download PDFInfo
- Publication number
- CN111803119A CN111803119A CN202010678915.3A CN202010678915A CN111803119A CN 111803119 A CN111803119 A CN 111803119A CN 202010678915 A CN202010678915 A CN 202010678915A CN 111803119 A CN111803119 A CN 111803119A
- Authority
- CN
- China
- Prior art keywords
- tooth
- horizontal
- bar
- plate
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 210000001114 tooth apex Anatomy 0.000 title claims abstract description 15
- 210000000214 mouth Anatomy 0.000 claims abstract description 22
- 238000003384 imaging method Methods 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 7
- 230000000007 visual effect Effects 0.000 claims description 6
- 210000003128 head Anatomy 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 11
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010043183 Teething Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 210000001847 jaw Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003254 palate Anatomy 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
- A61B6/512—Intraoral means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dentistry (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention discloses a tooth apex sheet projector based on a parting line and a working method thereof, the tooth apex sheet projector comprises a slot plate and an outer horizontal rod, the slot plate is arranged inside teeth, the outer horizontal rod is arranged outside the oral cavity, the slot plate and the outer horizontal rod are in parallel and synchronous linkage, so that the inclined angles of the slot plate and the outer horizontal rod with the horizontal plane are always kept the same, the angle relation between the long axis of the teeth and the film is visually and accurately reproduced outside the oral cavity by utilizing a parallelogram rule, namely, the position relation between the film which can not be directly seen in the oral cavity and the teeth to be shot is projected to the external included angle relation between the outer horizontal rod and the vertical line which can be directly observed and adjusted, so that when the teeth are shot, according to the standard requirement, the projection direction of the X-ray is quickly and accurately adjusted to the angular line between the vertical alignment film and the tooth to be shot so as to obtain the tooth image with the same length as the tooth to be shot. The X-ray radiation detector is simple and reliable in structure, convenient to operate and capable of reducing the possibility of rework, and therefore exposure of a patient to X-ray radiation is reduced.
Description
Technical Field
The invention relates to the technical field of oral and maxillofacial images, in particular to a tooth apex film projector based on a parting line and a working method.
Background
In the diagnosis and treatment of stomatology, an X-ray dental machine is a common device. X-ray dental machines are generally constructed with a bulb tube for generating X-rays, fitted with a cylindrical mask. The X-ray emitted by the bulb tube irradiates the face of a patient from a cone-shaped or cylindrical ray, and the closer the bulb tube is, the smaller the irradiation field is; the farther the bulb, the larger the field of illumination. In clinical use, a doctor places a film (an image imaging plate) on the inner face of teeth in the oral cavity of a patient, and then adjusts the direction angle of the wire shielding cylinder, so that the outlet of the wire shielding cylinder is aligned with the tooth surface to be shot, and the central line of the wire shielding cylinder is vertically opposite to the central position of the film, thereby preventing the deformation of the shot tooth image and ensuring that the projection field covers all the tooth surface to be shot.
In X-ray apex examination of the oral jaw face, two major techniques are currently commonly employed: a split-angle line projection technique and a parallel projection technique.
Firstly, a tip piece parallel projection technology:
the parallel projection technology of the apex sheet is also called as a right angle technology, a long shading cylinder technology or a long focus parallel projection technology. The basic projection principle is to place the X-ray film parallel to the tooth long axis and to make the X-ray central line perpendicular to both the tooth long axis and the film. The advantage of obtaining such an image is theoretically that the dental image has a small degree of distortion with the deformation of the tooth, and when the film is placed, the film has to be moved slightly away from the target tooth in order to ensure that the film is parallel to the long axis of the tooth. Meanwhile, high voltage is adopted and a fast film is used, so that the exposure time is shortened, and the exposure is reduced. However, this method is often used in experimental projection, which is not suitable for clinical application, and requires necessary auxiliary tools for projection. The time is long, the film needs a large space in the oral cavity when in place, and in the actual clinical operation, it is seen that in most cases, due to the inclination of the teeth, the form and thickness factors of the surrounding soft tissues (tongue body, oral floor and palate) and bone tissues (alveolar bone and faucial arch) and the size of the oral cavity volume, the parallel relation between the long axis of the teeth and the film cannot be formed even in the oral cavity volume, and the matching difficulty of the patient is large, so that the failure is caused. It is theoretically possible, but only partially valuable in practical clinical work.
Secondly, the root tip slice angle line projection technology:
the angular line projection technique is the most commonly used projection technique in clinic, an angular bisector is made in a vertical plane for an included angle between teeth and a film, an X-ray is vertically opposite to the angular bisector for shooting, and an image of the teeth is projected onto the film.
In the technology of apex X-ray radiography of the Chinese people's republic of China health industry standard (WS/T608-.
The central line of the X-ray is not perpendicular to the tooth long axis or the film which actually exists during projection, but is perpendicular to an imaginary angular bisector, and the direction of the central line of the X-ray is adjusted according to the angular bisector. In actual operation, how to determine the specific spatial position of the angular bisector is fuzzy and impossible to measure, and only can be estimated by experience, so that the method is usually inaccurate, and the photographed tooth image is often distorted and deformed.
In textbooks and national standards, the operating specifications for the projection direction and fixed-point positioning projection of an X-ray radiographic screening tube refer to the body surface landmarks of the soft facial tissues of a patient. However, it is clear that there are too many suspicious points and uncertainties for the positions of the teeth photographed using extrinsic body surface markers. The "X-ray center line" in the standard should be as parallel as possible to the tangent of the proximal surface of the tooth to be examined, wherein the term "as much as possible" is used for the doubt and inaccuracy of the X-ray center line.
Therefore, the diagonal technique is theoretically true, but in practice, because the film and the teeth are both in the oral cavity, the angle relationship between the two is invisible and unclear. Therefore, there is no clear parameter definition on how the included angle is defined and how the included angle is measured. In these prescribed operation specifications, although the target of X-ray projection is originally a hard tissue tooth, the projection direction and projection angle for positioning the tooth position are prescribed, and the spatial position of the predicted and positioned tooth is estimated by aligning the X-ray bulb with soft tissue surface marks and imaginary lines on the outer side of the tooth, and the like, and therefore, the projection direction and projection angle cannot be accurately positioned in actual clinical operation.
In addition, the technology in the specification does not refine the space state of the teething teeth, the specific position relation of the film, the specific position and angle relation of the X-ray projection direction and the like. During the photographing, many factors such as different projection angles, different projection directions, even different technicians, and variations in the tooth morphology and spatial position of the patient may cause the same tooth, and the imaged morphology after the projection is very different. Moreover, even if the same body surface markers are used, the difference of the tooth space positions of each person is large, so that the technology undoubtedly brings large errors and uncertainty to clinical images. Therefore, the technique of vertical angular bisector is used for shooting the apical plate of the tooth, which has only the possibility of theoretical accuracy and no more practical value, and the essence and the connotation of the angular bisector technique cannot be really shown due to the randomness and the uncertainty of the shooting.
In practice, the angle between the teeth and the film is not measurable or predictable because the angle is located inside the teeth in the mouth, so the angle of the bisector is almost the same, and is much more based on the experience of the clinical operator. Therefore, although the angular line dividing technology used in clinical practice is completely accurate in concept, the angular line dividing technology obtained by subjective judgment is taken as an objective index for adjusting the direction of the X-ray shielding cylinder, and great deviation exists in clinical practice and implementation. The practice of the clinical practice is not standard, and the theoretical rigor is not enough.
Thus, the prior art is subject to further improvements and enhancements.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a tooth apex film projector based on a bisector and a working method thereof, which can quickly and definitely position the X-ray projection direction when the tooth of a patient is imaged by using the dental film projector.
In order to achieve the above object, the present invention provides a tooth apex film projector based on a bisector, comprising: a neck plate arranged at the inner side of the teeth and an outer horizontal rod arranged outside the oral cavity; the clamping groove plate is parallel to and synchronously linked with the outer horizontal rod, can rotate along a horizontal shaft, and keeps the same inclination angle with the horizontal plane; the slot plate is provided with a slot for inserting a film, and the slot is horizontally arranged in parallel to the teeth to be photographed.
Preferably, the slot plate and the outer horizontal rod are respectively movably connected with at least one meshing horizontal rod and at least one linkage rod; the occlusion horizontal rod and the linkage rod are parallel but positioned at different horizontal heights.
More preferably, the horizontal engaging rods are arranged into two parallel separated branches, and clamp a fixing plate in the horizontal direction.
More preferably, the device further comprises at least one tightening knob for fixing the inclination angle of the outer horizontal rod to the occlusion horizontal rod.
More preferably, the device further comprises an angle gauge connected between the occlusal horizontal bar and the lateral horizontal bar for quantitatively indicating an angle between the lateral horizontal bar and the occlusal horizontal bar.
Preferably, the visual simulation plate is vertically connected to the outer horizontal rod and parallel to the clamping groove.
Preferably, the card slot device further comprises an imaging plate connected to the card slot plate along the up-down direction, and the imaging plate is parallel to the transverse direction of the card slot.
Preferably, still include a perpendicular to the angular line projection indication lever of outside horizontal pole, the stiff end of angular line projection indication lever is rotationally connected outside horizontal pole, the free end vertical fixation of angular line projection indication lever has an indicator, the indicator with outside horizontal pole is perpendicular.
Preferably, the angle dividing line projection indicating rod is kept on an included angle bisector of the vertical indicating rod and the outer side horizontal rod in the vertical direction after being adjusted.
The invention also discloses a working method of the tooth apex sheet projector based on the angular line, which comprises the following steps:
a. inserting a film into the card slot;
b. adjusting the head posture of the patient to enable the tooth to be shot to be a tooth long axis vertical to the horizontal plane;
c. placing the slot plate close to the inner side of the tooth to be photographed, closing the upper lip and the lower lip, and fixing the slot plate;
d. and adjusting the projection direction of the X-ray bulb tube to be perpendicular to the bisector of the included angle between the horizontal rod and the vertical line on the outer side.
The tooth apex film projector based on the angular line and the working method thereof comprise a slot plate which is arranged at the inner side of a tooth and an outer horizontal rod which is arranged at the outer side of an oral cavity when in use, and the slot plate and the outer horizontal rod are arranged to be parallel and synchronously linked, so that the inclined angles of the slot plate and the outer horizontal rod and the horizontal plane are always kept the same, thereby utilizing a parallelogram rule to visually and accurately reproduce the angle relationship between the long axis of the tooth and a film at the outer side of the oral cavity, namely projecting the position relationship between the film which can not be directly seen in the oral cavity and the tooth to be shot to the angle relationship between the outer horizontal rod and a vertical line which can be directly observed and adjusted at the outer side, conveniently and rapidly and accurately adjusting the projection direction of a wire shielding cylinder of an X-ray ball tube to vertically align the angular line between the film and the tooth to be shot according to the specification when the tooth is shot by using a dental film camera, to obtain a dental image of the same length as the tooth to be photographed. The technical scheme of the invention has simple and reliable structure, convenient operation and reduced rework possibility, thereby reducing the exposure of patients to X-ray radiation.
Drawings
FIG. 1 is a schematic diagram of the overall construction of the split-angle line-based dental apex film projector of the present invention;
FIG. 2 is a schematic view of the linkage of the tooth apex film projector based on the line of separation of the angle of the present invention;
FIG. 3 is an exploded view of the construction of the bisector-based dental apex film projector of the present invention;
FIG. 4 is a flowchart of the operation of the split-line tooth apex film projector of the present invention;
in the figure: 1-imaging plate, 2-card slot plate, 3-linkage rod, 4-occlusion part, 5-occlusion horizontal rod, 6-angle instrument, 7-elastic knob, 8-outside horizontal rod, 9-visual simulation plate, 10-fixing plate, 11-angular line projection indication rod and 12-indicator.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1, the tooth apex film projector based on the angular line of the invention has the basic structure that the projector comprises a slot plate 2 which is placed in the inner side of the tooth when in use, and an outer horizontal rod 8 which is placed outside the oral cavity. Wherein, draw-in groove board 2 sets up to be parallel to each other and synchronous linkage with outside horizontal pole 8, all can follow the horizontal axis and rotate, nevertheless keeps the inclination of both and horizontal plane the same all the time. The clamping groove plate 2 is used for inserting the film, so that a clamping groove for inserting the film is formed in the clamping groove plate, and when the clamping groove plate is placed in an entrance, the clamping groove is transversely parallel to teeth to be shot, so that the film inserted into the clamping groove plate is also transversely parallel to the teeth to be shot. In a more preferred embodiment, an imaging plate 1 connected in the up-down direction is further fixed to the card slot plate 2, and the imaging plate 1 is held in parallel with the lateral direction of the card slot. When placing the film, the film can rely on in imaging plate 1 and wait to shoot between the inboard of tooth, prevent to shoot before or shoot the in-process, the accident is emptyd.
Similarly, as shown in fig. 2, a visual simulation board 9 is also vertically connected to the outer horizontal rod 8, and the visual simulation board 9 is also kept parallel to the outer horizontal rod 8. The visual simulation board 9 is arranged, so that the included angle between the film and the teeth can be further displayed in an enlarged mode.
In the vertical direction, the slot plate 2 can be adjusted in the vertical direction according to the actual oral cavity condition of the patient, so as to change the inclination angle of the film, as shown in fig. 2.
Specifically, first, a film is inserted into the card slot, and the posture of the head of the patient is adjusted so that the long axis of the tooth to be photographed is perpendicular to the horizontal plane. Then the slot plate 2 is placed in the oral cavity of a patient and is closely placed on the inner side of the teeth to be photographed to form an included angle. The patient closes the upper and lower lips so that the slotted plate 2 remains stationary. Because of the linkage relationship, the included angle will be reflected in real time as the included angle between the outer horizontal rod 8 and the vertical line. At this time, since the angle between the outer horizontal rod 8 and the vertical line is clearly visible outside the patient's mouth, the bisector of the angle can be easily found. Then, the projection direction of the X-ray bulb tube, namely the outlet direction of the line shielding barrel, is adjusted to be perpendicular to the bisector of the included angle between the outer side horizontal rod 8 and the vertical line, so that the shot image obtained on the film and the tooth to be shot can be guaranteed to be completely equal in length.
The synchronous linkage of the clamping groove plate 2 and the outer horizontal rod 8 can be realized through a parallelogram rule. In one embodiment, as shown in fig. 2, the card slot plate 2 and the outer horizontal bar 8 are movably connected with at least one engaging horizontal bar 5 and at least one linkage bar 3 respectively. The occlusion horizontal bar 5 and the linkage bar 3 are parallel but at different horizontal levels. Namely, in a vertical plane, an occlusion horizontal rod 5, an outer horizontal rod 8, a linkage rod 3 and a clamping groove plate 2 which are connected in sequence form a parallelogram. Therefore, the included angle formed by the outer horizontal rod 8 and the clamping groove plate 2 to the horizontal plane can be changed by pushing or pulling out the linkage rod 3, namely, the included angle between the film and the teeth to be shot is adjusted. In a preferred embodiment, the engagement horizontal bar 5 is provided as two parallel spaced apart legs which connect the respective ends of the slotted plate 2 and the outer horizontal bar 8, preferably vertically. And, preferably, in order to increase the stability of the whole structure, a horizontal fixing plate 10 is clamped between the two occlusion horizontal rods 5, and the lips of the patient are closed at the occlusion part 4 on the fixing plate 10.
In a preferred embodiment, as shown in the exploded view of fig. 3, a tightening knob 7 is provided at one end of the outer horizontal bar 8, and after tightening, the angle of inclination between the outer horizontal bar 8 and the bite horizontal bar 5 can be fixed.
In order to further clarify the angular line, in a preferred embodiment, as shown in fig. 3, a angular line projection indicating rod 11 may be further provided, which is perpendicular to the outer horizontal rod 8, a fixed end of the angular line projection indicating rod 11 is rotatably connected to the outer horizontal rod 8, a free end of the angular line projection indicating rod 11 is vertically fixed with an indicator 12, and the indicator 12 is also perpendicular to the outer horizontal rod 8.
During the use, after card slot board 2 was placed in the oral cavity and adjusted the angle, the contained angle between outside horizon bar 8 and the vertical line was also fixed down. At this time, the angular line projection indication rod 11 can be rotated to the bisector of the included angle formed by the outer horizontal rod 8 and the vertical direction, so that the angular line is clearly indicated. And the thread shielding cylinder is adjusted to be opposite to the direction pointed by the indicator 12.
As shown in fig. 2, between the occlusal horizontal bar 5 and the lateral horizontal bar 8, an angle gauge 6 is provided for quantitatively indicating the angle between the lateral horizontal bar 8 and the occlusal horizontal bar 5. In another embodiment, a vertical indicating rod is further provided, the vertical indicating rod keeps a permanent vertical horizontal plane, so that the angle between the outer horizontal rod 8 and the vertical line can be clearly displayed, the angular line can be conveniently found, and the angular line projection indicating rod 11 is adjusted to be located on the included angle bisector of the vertical indicating rod and the outer horizontal rod 8 in the vertical direction.
The working method of the tooth apex sheet projector based on the angular line, disclosed by the invention, as shown in fig. 4, comprises the following steps:
a. inserting a film into the card slot;
b. adjusting the head posture of the patient to enable the tooth to be shot to be a tooth long axis vertical to the horizontal plane;
c. placing the slot plate 2 close to the inner side of the tooth to be photographed, closing the upper lip and the lower lip, and fixing the slot plate 2;
d. and adjusting the projection direction of the X-ray bulb tube to be perpendicular to the bisector of the included angle between the horizontal rod and the vertical line on the outer side.
To sum up, the tooth apex film projector based on the angular line and the working method thereof of the invention comprise a slot plate 2 which is arranged at the inner side of the tooth and an outer horizontal rod 8 which is arranged at the outer side of the oral cavity when in use, and the slot plate 2 and the outer horizontal rod 8 are arranged to be parallel and synchronously linked, so that the inclined angles of the slot plate 2 and the outer horizontal rod 8 and the horizontal plane are always kept the same, thereby utilizing the parallelogram rule to visually and accurately reproduce the angle relationship between the long axis of the tooth and the film at the outer side of the oral cavity, namely projecting the position relationship between the film which can not be directly seen in the oral cavity and the tooth to be shot to the angle relationship between the outer horizontal rod 8 and the vertical line which can be directly observed and adjusted at the outer side, and conveniently and rapidly and accurately adjusting the projection direction of the shading cylinder of the X-ray bulb to vertically align the angular line between the film and the tooth to be shot according to the specification requirement when the, to obtain a dental image of the same length as the tooth to be photographed. The technical scheme of the invention has simple and reliable structure, convenient operation and reduced rework possibility, thereby reducing the exposure of patients to X-ray radiation.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A tooth apex sheet projector based on a bisector, comprising: a neck plate arranged at the inner side of the teeth and an outer horizontal rod arranged outside the oral cavity;
the clamping groove plate is parallel to and synchronously linked with the outer horizontal rod, can rotate along a horizontal shaft, and keeps the same inclination angle with the horizontal plane;
the slot plate is provided with a slot for inserting a film, and the slot is horizontally arranged in parallel to the teeth to be photographed.
2. The dental apex sheet projector of claim 1, wherein the slot plate and the outer horizontal bar are each movably connected with at least one occlusal horizontal bar and at least one linkage bar; the occlusion horizontal rod and the linkage rod are parallel but positioned at different horizontal heights.
3. The dental apex film projector of claim 2, wherein the occlusal horizontal bar is provided in two parallel spaced apart arms sandwiching a horizontal fixation plate.
4. The dental apex film projector of claim 2, further comprising at least one tightening knob for fixing the angle of inclination of the outer horizontal bar to the occlusal horizontal bar.
5. The dental apex film projector of claim 2 or 3 or 4, further comprising an angle gauge connected between the occlusal level bar and the lateral level bar for quantitatively indicating an angle between the lateral level bar and the occlusal level bar.
6. The dental apex film projector of any one of claims 1 to 4, further comprising a visual simulation plate vertically attached to the outer horizontal bar, the visual simulation plate being parallel to the slot.
7. The dental apex film projector of any one of claims 1 to 4, further comprising an imaging plate attached to the slot plate in an up-down direction, the imaging plate being parallel to a lateral direction of the slot.
8. The dental apex sheet projector as claimed in any one of claims 1 to 4, further comprising a dividing line projection indicating rod perpendicular to the outer horizontal rod, wherein a fixed end of the dividing line projection indicating rod is rotatably connected to the outer horizontal rod, and a free end of the dividing line projection indicating rod is vertically fixed with an indicator, and the indicator is perpendicular to the outer horizontal rod.
9. The dental apex film projector of claim 8, further comprising a vertical indicator bar perpendicular to the horizontal plane, wherein the bisector projection indicator bar is adjusted to remain on a bisector of an angle between the vertical indicator bar and the outer horizontal bar in the vertical direction.
10. The method of operating a dental apex film projector as claimed in any one of claims 1 to 9, comprising the steps of:
a. inserting a film into the card slot;
b. adjusting the head posture of the patient to enable the tooth to be shot to be a tooth long axis vertical to the horizontal plane;
c. placing the slot plate close to the inner side of the tooth to be photographed, closing the upper lip and the lower lip, and fixing the slot plate;
d. and adjusting the projection direction of the X-ray bulb tube to be perpendicular to the bisector of the included angle between the horizontal rod and the vertical line on the outer side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678915.3A CN111803119B (en) | 2020-07-15 | 2020-07-15 | Tooth root tip piece projector based on angular line and working method |
| PCT/CN2020/125742 WO2022011885A1 (en) | 2020-07-15 | 2020-11-02 | Dental periapical film radiographic device based on bisecting angle, and method for using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678915.3A CN111803119B (en) | 2020-07-15 | 2020-07-15 | Tooth root tip piece projector based on angular line and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111803119A true CN111803119A (en) | 2020-10-23 |
| CN111803119B CN111803119B (en) | 2024-01-19 |
Family
ID=72866257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010678915.3A Active CN111803119B (en) | 2020-07-15 | 2020-07-15 | Tooth root tip piece projector based on angular line and working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111803119B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011885A1 (en) * | 2020-07-15 | 2022-01-20 | 韩方凯 | Dental periapical film radiographic device based on bisecting angle, and method for using same |
| WO2022241668A1 (en) * | 2021-05-19 | 2022-11-24 | 韩方凯 | Angle positioning device for dental periapical film projection, and usage method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0022888A1 (en) * | 1979-07-24 | 1981-01-28 | Elzi, Udo | Auxiliary device for dental X-ray photography |
| JPH11197148A (en) * | 1997-10-24 | 1999-07-27 | Morita Mfg Co Ltd | Auxiliary device radiography and x-ray bisection plane photographing method using the same |
| US20050013413A1 (en) * | 2003-07-18 | 2005-01-20 | Cochran Phillip E. | Dental x-ray film positioning instrument |
| CN1650228A (en) * | 2002-04-01 | 2005-08-03 | 珍妮弗·A·迪德里希 | Intraoral dental radiology positioning device |
| US20110222666A1 (en) * | 2008-11-17 | 2011-09-15 | Young Jin Choi | Film holder with angle indicator for intraoral radiography and film supporting part thereof |
| CN102325500A (en) * | 2009-02-27 | 2012-01-18 | 您可试股份有限公司 | Intraoral photography aid |
| CN102395321A (en) * | 2009-04-28 | 2012-03-28 | 株式会社Ｗｅｓ | Photography tool with exclusive sensor holder for mounting ccd sensor for capturing dental x-ray image |
| CN108030506A (en) * | 2017-12-04 | 2018-05-15 | 南京嘉威医疗器械有限责任公司 | Piece device is held in a kind of dental piece photography |
| CN213551883U (en) * | 2020-07-15 | 2021-06-29 | 上海市口腔病防治院 | Tooth apex piece projector based on angular line |
-
2020
- 2020-07-15 CN CN202010678915.3A patent/CN111803119B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0022888A1 (en) * | 1979-07-24 | 1981-01-28 | Elzi, Udo | Auxiliary device for dental X-ray photography |
| JPH11197148A (en) * | 1997-10-24 | 1999-07-27 | Morita Mfg Co Ltd | Auxiliary device radiography and x-ray bisection plane photographing method using the same |
| CN1650228A (en) * | 2002-04-01 | 2005-08-03 | 珍妮弗·A·迪德里希 | Intraoral dental radiology positioning device |
| US20050013413A1 (en) * | 2003-07-18 | 2005-01-20 | Cochran Phillip E. | Dental x-ray film positioning instrument |
| US20110222666A1 (en) * | 2008-11-17 | 2011-09-15 | Young Jin Choi | Film holder with angle indicator for intraoral radiography and film supporting part thereof |
| CN102325500A (en) * | 2009-02-27 | 2012-01-18 | 您可试股份有限公司 | Intraoral photography aid |
| CN102395321A (en) * | 2009-04-28 | 2012-03-28 | 株式会社Ｗｅｓ | Photography tool with exclusive sensor holder for mounting ccd sensor for capturing dental x-ray image |
| CN108030506A (en) * | 2017-12-04 | 2018-05-15 | 南京嘉威医疗器械有限责任公司 | Piece device is held in a kind of dental piece photography |
| CN213551883U (en) * | 2020-07-15 | 2021-06-29 | 上海市口腔病防治院 | Tooth apex piece projector based on angular line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022011885A1 (en) * | 2020-07-15 | 2022-01-20 | 韩方凯 | Dental periapical film radiographic device based on bisecting angle, and method for using same |
| WO2022241668A1 (en) * | 2021-05-19 | 2022-11-24 | 韩方凯 | Angle positioning device for dental periapical film projection, and usage method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111803119B (en) | 2024-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5737388A (en) | Digital intraoral X-ray photography method and holder for picture plate or X-ray film | |
| Petrikowski et al. | Presurgical radiographic assessment for implants | |
| US7866883B2 (en) | Radiographic film positioning device and a process for obtaining radiographic images | |
| CN111803119A (en) | Tooth apex sheet projector based on angular line and working method | |
| Tyndall et al. | Postitional changes of the mandibular condyle assessed by three-dimensional computed tomography | |
| Friedland | Clinical radiological issues in orthodontic practice | |
| CN213551883U (en) | Tooth apex piece projector based on angular line | |
| Kim et al. | Effect of mandibular positioning on preimplant site measurement of the mandible in reformatted CT. | |
| Kim et al. | The impact of reorienting cone-beam computed tomographic images in varied head positions on the coordinates of anatomical landmarks | |
| JP2014117428A (en) | Facial photography apparatus, method for measuring head inclination during facial photography, and apparatus for facial photography and x-ray imaging | |
| US5012501A (en) | Apparatus for producing panoramic x-ray image projections | |
| Pratiwi et al. | Orthodontists reproducibility and accuracy in linear and angular measurement on 2d digital and 3d cbct radiographic examination | |
| CN111991024B (en) | Convex lens visible cursor indicator for dental film machine and working method | |
| KR20200100769A (en) | Gauge for verification of 3D images | |
| CN213551885U (en) | Convex lens visible cursor indicator for dental film machine | |
| WO2022011885A1 (en) | Dental periapical film radiographic device based on bisecting angle, and method for using same | |
| Faryal et al. | Reliability Of Orthopantomogram In Comparison To Lateral Cephalogram For Linear Mandibular Measurements. | |
| KR100549836B1 (en) | Bite block for panoramic X-ray tests | |
| Alam et al. | Validity of Cone Beam Computed Tomography (CBCT) on estimation of implant fixture length | |
| Hussain et al. | Latest trends in imaging techniques for dental implant: a literature review | |
| Morea et al. | Development of an opto‐electronic positioning device for serial direct digital images of oral structures | |
| CN213249216U (en) | Built-in wall type light field indicator for dental film machine | |
| WO2022241668A1 (en) | Angle positioning device for dental periapical film projection, and usage method | |
| RU2185124C2 (en) | Method for measuring metric characteristics of dental implantation area and positioning the dental implants | |
| Valappila et al. | Panoramic radiography: A review |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |