JP4594074B2 - Contact cap for dental tooth measuring device and dental tooth measuring device - Google Patents

Description

  The present invention relates to, for example, a photographing contact cap as a photographing auxiliary tool applied at the time of photographing (measurement) in a dental tooth measuring device, and the dental tooth measuring device.

  Conventionally, when performing treatment such as inserting a denture (insertion), especially an incisor denture for a patient in a dental office, measure the color of the vital tooth (or inactivated tooth) adjacent to the patient's corresponding incisor by some method, It is necessary to select a denture with a color that matches the comparison. As a method for measuring the shade of a tooth at present, a reference plate called a shade guide is compared with a patient's tooth, and the number of the shade guide that the dentist determines visually is the closest shade is set as the tooth shade. The bleaching effect is confirmed by this number, or it is transmitted to the dental laboratory to construct a denture (insertion).

  However, in the conventional method of determining the denture shade by visual judgment using the shade guide described above, it is easily affected by illumination, and even in the same patient's teeth due to the type of illumination in the room and the influence of external light. Easy to judge as a different shade. In addition, the doctor (or dental technician) who performs the determination also has a large variation in determination depending on the health condition at that time, and it is difficult to select a satisfactory denture.

  Under such circumstances, in order to accurately obtain the tooth shade without being affected by illumination or the judge, the corresponding tooth can be photographed, and more accurate tooth shade information can be obtained from the image information. A dental tooth measuring device (imaging device) is desired. When actual photographing is performed with the above tooth measuring device, it is necessary to perform close-up photographing of a single tooth (life tooth), but if photographing is simply performed in a conventional close-up photographing state, the influence of illumination is unavoidable. Therefore, it is necessary to perform shooting under special light illumination. In that case, it is indispensable to attach to the camera a photographing contact cap that serves as a hood for shielding external light and positioning a subject tooth at a photographing position more accurately.

  The present invention has been made in order to solve the above-described problems, and can be applied to a dental tooth measuring apparatus, and can photograph a tooth to be measured (subject) in a state where it is not affected by external light. It is another object of the present invention to provide a dental tooth measurement contact cap that can be positioned at a stable imaging position, and a dental tooth measurement device to which the contact cap is applied.

Dental tooth measuring device for contact cap of the present invention, when performing imaging of the teeth measured tooth by the dental measuring apparatus, a mountable in a state of covering the photographing window portion near the tooth measuring apparatus, flexibility A cap portion formed of a certain elastically deformable material; an opening portion disposed in front of the cap portion and facing the photographing window portion in a mounted state; and projecting forward from a central portion of a lower side of the opening portion. And a protrusion having a shape that can be bitten by the tooth to be measured.

  ADVANTAGE OF THE INVENTION According to this invention, the dental tooth measuring device can photograph a tooth as a subject without being affected by external light and can be positioned at a stable photographing position. A contact cap and a dental tooth measuring device to which the contact cap is applied can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are perspective views showing the external appearance of an HMSC device (Handy Multi-Spectral Camera), which is a dental tooth measurement (imaging) device composed of a camera and a cradle to which a contact cap for imaging according to each embodiment of the present invention can be applied. FIG. 1 shows a state where the light shielding cover is open when the camera is mounted on the cradle, and FIG. 2 shows a state where the light shielding cover is closed. 3 and 4 are perspective views of the cradle. FIG. 3 shows a light shielding cover opened state, and FIG. 4 shows a light shielding cover closed state. 5 to 7 are perspective views showing the appearance of the camera, FIG. 5 is a perspective view seen from the front side, FIG. 6 is a perspective view seen from the back side, and FIG. It is the perspective view seen from the back upper surface.

  8 to 14 are views showing the external shape of the camera. FIG. 8 is a front view, FIGS. 9 and 10 are left and right side views, and FIGS. 11 and 12 are plan views. FIG. 13 is a bottom view, FIG. 13 is a rear view, and FIG. 14 is a view taken in the direction of arrow A in FIG. 15 to 21 are views showing the external shape of the cradle, in which FIG. 15 is a front view, FIGS. 16 and 17 are left and right side views, and FIGS. 18 and 19 are plan views. FIG. 20 is a bottom view, FIG. 20 is a rear view, and FIG. 21 is a view taken in the direction of arrow B in FIG. 22 to 28 are views showing the external shape of the camera mounted on the cradle. FIG. 22 is a front view, FIGS. 23 and 24 are left and right side views, and FIG. , 26 are a plan view and a bottom view, FIG. 27 is a rear view, and FIG. 28 is a view taken in the direction of arrow C in FIG.

  29 to 33 are views showing a state in which a photographing contact cap according to a second embodiment to be described later is mounted on the camera among the embodiments, FIG. 29 is a front view, and FIGS. FIG. 32 and 33 are a plan view and a bottom view, respectively.

  The HMSC apparatus includes a cradle 1 and a camera 2 that can be attached to and detached from the cradle 1 as shown in FIGS.

  The cradle 1 charges the built-in battery of the camera 1 while the camera 1 is mounted, and transmits captured image data captured by the camera 1 to a personal computer (not shown) via the USB. The cradle 1 incorporates a reference plate 4 for calibrating the captured image data of the camera 1, and a rotatable light shielding cover 3 for shielding the periphery of the reference plate 4 when the camera 1 is mounted. It is attached.

  The camera 2 includes an LED illumination system 17 composed of a plurality of LEDs, a photographing optical system 18 that can be focused, an image pickup unit 19 (described in FIGS. 41, 51, and 55 described later), and an LCD display unit (FIG. 6). ) 16, an imaging processing unit, an image memory unit, a communication control unit (not shown), and a connector 14 (FIG. 6) are built in the camera body. Any of contact caps 31, 31 A, 31 B, and 31 C described later can be attached to the outer periphery of the top cover 12 that is fixed to the front surface of the camera body. The LED illumination system 17, the photographing optical system 18, and the imaging unit 19 are disposed in the camera main body along the photographing optical axis O behind the photographing window 12 a disposed in front of the top cover 12. As shown in FIG. 5, a cutout 12b is provided in front of the top cover 12 on the side of the photographing window 12a. The cutout portion 12b is provided so that it is convenient to clean the photographing window portion 12a.

  In the HMSC apparatus, the camera 2 is mounted on the cradle 1 and charged, and then the image of the reference plate 4 is captured and the captured image data is calibrated. After calibration, the camera 2 is removed from the cradle 1 and photographing in three photographing modes described later is performed. At the time of shooting, the photographer holds the body of the camera 2 by hand, rotates the focus ring 13 while observing the subject image on the LCD display unit 16 to focus, and operates the operation switch button 15. To capture an image of the subject (patient's face, full jaw, single teeth).

  The three photographing modes are a facial photographing mode, a full jaw photographing mode, and a measurement photographing mode. In the facial photographing mode, the entire face of the patient is photographed with a color CCD under external light illumination, and is referred to. Image data (RGB captured image data) is captured.

  In the all-jaw photographing mode, the entire patient's teeth are photographed with a color CCD under external light illumination, and reference image data (RGB photographed image data) is captured.

  In the measurement photographing mode, a contact cap, which will be described later, is attached to the top cover 12 (FIG. 29) at the tip of the camera 2 in order to shield external light from light and to stably position a single tooth as a subject in the photographing opening. Then, through the opening of the attached contact cap, a single tooth (which may be two teeth) which is a tooth to be measured (life tooth) designated by the patient is used as illumination light by a plurality of LEDs having a plurality of wavelengths. Multiband shooting is performed. By this photographing, multiband photographed image data for accurately measuring a single-tooth shade is captured.

  When shooting in each shooting mode described above is completed, the camera 2 is mounted on the cradle 1 again, and each shot image data is transferred to the personal computer side via the USB. In the personal computer, RGB captured image data filing processing, multiband captured image data calibration correction processing, multiband captured image data chromaticity calculation processing, and shade guide number determination processing are performed. Shade guide and chromaticity data are stored in a state corresponding to the data. The stored data is sent to a technical laboratory, and a good-looking denture material that matches the photographed life tooth is selected.

  Each embodiment of the contact cap attached to the top cover 12 of the camera at the time of photographing in the above-described measurement photographing mode will be described.

  34 to 39 are views showing the appearance of the contact cap according to the first embodiment of the present invention. FIG. 34 is a front view, and FIGS. 35 and 36 are left and right side views. 37 and 38 are a plan view and a bottom view, and FIG. 39 is a rear view. 40 is a cross-sectional view taken along the line DD of FIG. FIG. 41 is a diagram showing a single-tooth imaging state in the measurement imaging mode on the cross section of FIG. 40, and shows a state in which imaging is performed with the upper incisor applied to the opening of the contact cap. FIG. 42 shows an E arrow view of FIG. 41 in the single-tooth imaging state.

  In FIG. 41, the top cover 12 with the contact cap attached and the LED illumination system 17, the imaging optical system 18, and the imaging unit 19 arranged along the imaging optical axis O in the camera body are also shown by two-dot chain lines. Yes. In the following description, among the directions orthogonal to the optical axis O in the camera-mounted state, the illustrated vertical direction is defined as the Y direction, and the direction orthogonal to the Y direction is defined as the horizontal direction.

The contact cap 31 according to the first embodiment is a member having a thin cap shape made of black stretchable synthetic resin rubber, for example, styrene elastomer, and is put on the outer front side of the top cover 12 of the camera 2. (Fig. 41). Rubber hardness of the material is fit, to apply 70 degrees of the material from the attachment of (50 to 80 degrees as the allowable range). The contact cap 31 is a disposable type that is discarded after use.

  The contact cap 31 has a cap portion 31j attached to the front portion so as to cover the top cover 12, and is disposed at the front portion of the cap portion at the center position of the optical axis O in front of the photographing optical system 18 in the attached state. A central opening 31a serving as a photographing window, two extending portions 31b extending rearward in parallel to the optical axis O direction on the left and right sides, and an upper and lower mounting direction identification on the upper rear end of the cap portion. A protrusion 31i is provided. The inner surface of the cap portion is a textured surface for preventing reflection. In addition, since the shape of the inner surface of the cap portion is vertically and horizontally symmetrical, it can be mounted upside down on the top cover 12.

  The size of the central opening 31a is a square opening, the dimensions P1 and P2 are equal, and each side is 12 mm. This size is a size obtained by setting the upper limit of the size of a general adult incisor to be imaged as approximately 10 mm square and adding 1 mm on the margin side. By setting the square opening to the minimum necessary size, the invading outside light is suppressed, and the inflow of breath from the inside of the patient mouth is restricted. However, as for the size of the square opening, it is of course possible to prepare other sizes for the special case.

  The outer surface side of the central opening 31a is an inclined surface in the vertical direction, and the thickness t1 of the upper side and the thickness t2 of the lower side are t1> t2. That is, the upper side is thinned to give flexibility (fitness), and the lower side is thickened to make it difficult to deform.

  The two extending portions 31b are formed to be extendable and thin, and each has a locking hole 31d that can be locked to the locking projection 12c (FIGS. 29 and 31) of the top cover 12, and a knob portion at the tip. 31c is provided (FIG. 40). The contact cap 31 is attached to the top cover 12 when the locking hole 31d is locked to the locking protrusion 12c of the top cover 12 while the contact cap 31 is placed on the top cover 12 while being pulled and extended. The appearance of the contact cap 31 in the camera mounting state is substantially the same as that shown in FIGS. 29 to 33 showing the mounting state of the contact cap 31A of the second embodiment described later.

  When photographing a single tooth of the tooth to be measured as the upper incisor 51 that is a vital tooth, first, as shown in FIG. 41 or 42, the contact cap 31 is attached to the top cover 12 with the protrusion 31i on the upper side. To do. In this state, the upper incisor 51 and the lower incisor 52 are engaged with each other, the upper incisor 51 is applied to the upper side of the opening 31a, and the lower incisor 52 is applied to the lower side of the opening 31a. By being applied in this manner, the gum on the side of the upper incisor 51 on the side to be photographed is held in a state of being well fitted to the thin thickness t1 side of the upper side. Accordingly, the incisors 51 are not easily displaced laterally, and the external light around the incisors is difficult to enter from the openings. Furthermore, in the state where the upper and lower incisors are engaged, the lower incisor 52 is slightly located behind the upper incisor 51 as shown in FIG. 41, and the difference in thickness between the upper and lower sides In addition, the optical axis O direction can be stably positioned because it is in contact with the thick step t2 of the lower side.

  In the above-described subject positioning state, as shown in FIG. 42, the entire upper incisor (single tooth) 51 is finely adjusted to enter the center of the opening 31a, the camera 2 is fixedly held, and the measurement photographing mode is used. Take a photo of However, during imaging, the patient's head needs to be fixed by some kind of holder so as not to move.

  When photographing the lower incisor 52, which is a vital tooth, as a single tooth of the tooth to be measured instead of the above-described photographing of the upper incisor 51, the contact cap 31 is attached to the top cover 12 in the opposite manner to the above state. And attach with the projection 31i facing down. The patient protrudes the lower incisor 52 before the upper incisor 51 to engage the incisor, and positions the lower incisor 52 in the center of the central opening 31a. Then, the gum of the lower incisor 52 is applied to the upper side of the opening 31a (thickness t1 side, and below the opening 31a in the photographing state), and at the same time, the upper incisor 51 is placed on the lower side of the opening 31a ( It is on the thickness t2 side, and is placed above the opening 31a in the photographing state). In this applied state, the lower incisor 52 can be firmly fixed to the center of the central opening 31a in a good light-shielding state in the same manner as in the imaging state of the upper incisor 51, and imaging in the measurement imaging mode is performed. Can do.

  As described above, when the contact cap 31 of the present embodiment is applied to the camera 2, first, the cap is formed of a black material, and further, the entire inner surface is a textured surface, so that disturbance light is efficiently absorbed, Absorption of stray light is also effective, and a sense of incongruity does not occur in the photographed image, so that an accurate measurement result (photographed image data) is obtained. In particular, the inner surface of the cap around the central opening 31a and the inner surface of the cap corresponding to the notch 12b in front of the top cover 12 are exposed to LED illumination light, but the surfaces are black as described above. Because of the textured surface, regular reflection is avoided and internal scattered light is reduced.

  Further, since the contact cap 31 is formed of a thin cap member that can be expanded and contracted, it can be easily attached to and detached from the top cover 12 on the camera side. That is, after the cap 31 is put on the top cover 12, the extending portions 31b on both sides can be extended and easily locked to the locking projections 12c to be in a mounted state.

  Since the inner surface of the contact cap 31 has a symmetrical shape in the vertical and horizontal directions, it can be attached to the top cover 12 upside down. Can be used for both shooting. In that case, since the protrusion 31i is provided on the upper end portion of the cap portion 31j, it is easily determined from the appearance whether the contact cap 31 is mounted in a state where the upper or lower teeth can be photographed. it can.

  Further, the size of the central opening 31a is set to an appropriate size considering the upper limit of the size of a general adult incisor to be imaged, and any patient can be handled. Moreover, since the opening is not larger than necessary, intrusion of external light is suppressed, and at the same time, breath from the patient's mouth becomes difficult to enter the camera side, and fogging of the imaging window 12a of the top cover 12 is suppressed.

  Furthermore, since the thickness of the upper side and the lower side of the central opening 31a is set so that the upper side is thin and the lower side is thick, the fit to the measured tooth (incisor) side is good and difficult to shift. A step due to the difference in thickness of the lower side matches the incision of the incisors, and stable positioning can be achieved, and further, light outside the incisors can be blocked.

  Next, a modified example of the shape of the central opening 31a of the contact cap 31 of the first embodiment will be described using a front view of the contact cap to which the modified example of FIG. 43 is applied. In the contact cap 31A of this modified example, a small notch 31e is provided at the center position of the upper and lower sides of the central opening (window) 31a. When observing a subject image on the LCD display unit 16 of the camera 2 at the time of shooting, it is easy to recognize the center position of the shooting screen by checking the position of the notch 31e and always place the single tooth to be shot at the center. become.

Next, a contact cap according to a second embodiment of the present invention will be described with reference to FIGS.
44 to 49 are views showing the external shape of the contact cap of the second embodiment, FIG. 44 is a front view, FIGS. 45 and 46 are left and right side views, and FIG. , 48 are a plan view and a bottom view. FIG. 49 is a rear view. 50 is a cross-sectional view taken along line FF in FIG. 44. FIG. 51 is a diagram showing a single-tooth imaging state in the measurement imaging mode on the cross section of FIG. FIG. 52 is a G arrow view of FIG. 51 in the single-tooth imaging state. As described above, FIGS. 29 to 33 are external views showing a state in which the contact cap of the second embodiment is mounted on the camera. In FIG. 51, the top cover 12 to which the contact cap of this embodiment is attached and the LED illumination system 17, the photographic optical system 18, and the imaging unit 19 arranged along the photographic optical axis O in the camera body are also two points. It is indicated by a chain line.

  As shown in FIGS. 44 and 47, the contact cap 31B of the present embodiment is newly provided on the front surface where a central opening 31a serving as a photographing window is provided, as shown in FIGS. 44 and 47 with respect to the contact cap 31 of the first embodiment. The difference is that 31f and light shielding fin 31g are arranged. Others are made of the same material as the contact cap 31 and have the same shape. The same shape portions are denoted by the same reference numerals, and different portions will be described below.

The contact cap 31 B of this embodiment, as shown in FIG. 44 and 47, is a protrusion having a shape projecting forward further lower position of the cap portion 31j front of the central opening portion 31a against the contact cap 31 A pair of shading fins 31g projecting forward along the vertical direction is provided at the left and right positions of the cutting tool 31f and the central opening 31a. The bite portion 31f has a certain degree of rigidity. The fin portion 31g is formed of a portion having a small thickness and flexibility. Other contact cap 31 B is inside the upper and lower cap like the contact cap 31 has a symmetrical shape, have a locking hole 31d for engagement with the top cover 12, central opening 31a The dimensions P1 and P2 are 12 mm, respectively, and the thickness t1 of the upper side of the central opening 31a is thin and the thickness t2 of the lower side is thick.

  The contact cap 31B is also mounted and used in front of the top cover 12 of the camera 2 during photographing (measurement) in the measurement photographing mode, as in the case of the contact cap 31, but photographing when the contact cap 31B is worn. Sometimes, the patient bites the bite portion 31f with the upper and lower incisors 51, 52 as shown in FIG. In this state, the upper incisor 51 as a single tooth (a vital tooth) serving as a subject is positioned at the center of the opening 31a as shown in FIG. 52 with the upper gum applied to the upper side of the opening 31a. Further, when the patient bites the bite portion 31f with the upper and lower incisors 51, 52, the patient inserts the flexible left and right fin portions 31g into the mouth along the outside of the upper and lower teeth.

  In the above-described holding state of the contact cap 31B, disturbance light entering the central opening 31a is shielded by the left and right fins 31g and does not reach the opening 31a. In addition, as shown in FIG. 51, since the bite portion having a certain degree of rigidity is bitten by the upper and lower incisors 51 and 52, the upper incisor 51 hardly moves relative to the opening 31a in the direction of the optical axis O and vertically and horizontally. It is held in a state (a state that is difficult to shift). Therefore, the fixing force for fixing the patient's head during imaging does not require as much force.

  In the contact cap 31B, the thickness t2 on the lower side of the opening where the cutting tool 31f is located is set to be thicker than the thickness t1 on the upper side of the opening, as in the case of the contact cap 31. In the case of the contact cap 31B, since the bite portion 31f is bitten by the upper and lower incisors as described above, the front surface position of the upper incisor 51 as the subject is stabilized from the inner surface of the central opening 31a as shown in FIG. Located at a distance. Accordingly, a state in which the subject distance at the time of photographing hardly changes is obtained, and stable photographed image data can be obtained.

  Further, if the specularly reflected light from the teeth enters the photographing screen in the photographing state, it causes a measurement error. In this case, the angle (optical axis O direction) with respect to the teeth of the camera 2 is set so as to eliminate the specularly reflected light. It needs to be adjusted. If the bite portion 31f is bitten by the incisors 51 and 52 as described above at the time of adjusting the angle, the top cover 12 can be pivoted around the bite bite position. By adjusting the direction of the optical axis O, a state without regular reflection can be obtained. That is, once the coordinates of the incisor 31 with respect to the opening 31a are determined, only the top cover 12 is pivoted in a state where the coordinates remain unchanged (the incisor 51 is located in the center) for regular reflection. Uncaptured image data can be captured.

Incidentally, performed in a state also mounted to the top cover 12 and similarly to the case contact cap 31 B of the first embodiment in the upside down direction when photographing the lower incisor 52 by utilizing the contact cap 31 B. In this case as well, the fin 31g is inserted into the mouth and the bite 31f is bitten by the incisors 51 and 52, and the lower incisor 52 is positioned at the center of the central opening 31a. The lower incisor 52 can be imaged by this method.

When applying the contact cap 31 B of the present embodiment as described above, the subject by other than the same effects as the case of the contact cap 31 of the first embodiment, biting the bight 31f in the upper and lower incisors Therefore, it is possible to easily maintain a state without regular reflection. In addition, as described above, it is difficult for the position shift to occur, so that it is possible to reduce the pressing force of the fixture that fixes the patient's head during imaging. Furthermore, the flexible fin part 31g can be inserted into the mouth without pain, and the entry of ambient light from the opening 31a can be reliably prevented.

Next, the contact cap of 3rd embodiment of this invention is demonstrated using FIGS.
FIG. 53 is a longitudinal sectional view of the contact cap of the third embodiment (corresponding to the sectional view of FIG. 50 in the second embodiment). 54 is a view taken in the direction of the arrow H in FIG. FIG. 55 is a diagram showing a single-tooth imaging state in the measurement imaging mode on the cross section of FIG. FIG. 56 is a view taken along the arrow I in FIG. In FIG. 55, the top cover 12 to which the contact cap 31C is attached and the LED illumination system 17, the imaging optical system 18, and the imaging unit 19 arranged along the imaging optical axis O in the camera body are also indicated by two-dot chain lines. Has been.

  As shown in FIGS. 53 and 54, the contact cap 31C of the present embodiment is provided with a recess 31h on the upper surface of the cutting tool 31f as compared to the contact cap 31B of the second embodiment. Others are made of the same material as the contact cap 31 or 31B and have the same shape. The same shape portions are denoted by the same reference numerals, and different portions will be described below.

  In the contact cap 31B of the second embodiment described above, the bite portion 31f is bitten by the incisors 51 and 52 as shown in FIG. As shown in FIG. 52, the incisal edge 51a of the incisor comes into contact with the surface of the bite portion 31f in the biting state. Therefore, there is a possibility that the vicinity of the contact portion J1 is insufficient in light quantity due to the edge effect, the corresponding portion becomes a dark image, and there is a problem that accurate data cannot be obtained in shade measurement.

  Therefore, in the contact cap 31C of this embodiment, as shown in FIGS. 53, 54, and 56, a recess 31h that is open to the camera side is provided on the upper surface of the cutting tool 31fC. The shape of the recess 31h is a depth sufficient to cause a single tooth (a vital tooth) to be measured, for example, the left and right width S1 narrower than the width of the incisor 51 and a separation distance that does not cause or reduce edge loss due to the edge effect. Has S2. Since the incisors 51 that bite the bite portion 31fC abut on both sides of the recess 31h, an edge loss occurs at the abutting portion. However, if the range J2 where the edge effect extends is, for example, a range of about 2.5 mm from the contact end, the central portion of the incision portion of the incisor 51 is set by setting the left and right width S1 to 5 mm or more. 51a0 is a range in which there is no edge loss or is reduced, and a more accurate captured image (color measurement data) can be obtained.

  In addition, when the contact cap 31C is mounted in the upside down direction and the lower incisor 52 is photographed, the edge loss center of the lower incisor 52 located in the central portion of the recess 31h is not caused by edge loss, or A reduced state is obtained.

  As described above, when the contact cap 31C of this embodiment is applied, the same effects as those obtained by the contact caps 31 and 31A of the first and second embodiments can be obtained, and the recess 31h having a predetermined width can be formed in the cutting tool portion 31fC. By providing this, a state where edge loss is reduced is obtained at least in the central portion of the edge of the single tooth that is the subject, and a more accurate photographed image (shade measurement data) is obtained.

  In addition, although the imaging | photography (measurement) state using the contact cap of each embodiment mentioned above demonstrated the case where the upper and lower incisors (anterior teeth) which are vital teeth were made into the object, it is not restricted to this, canine teeth other than an incisor, etc. The same can be applied to the above shooting. Furthermore, it is of course possible to apply not only to vital teeth, but also to imaging of dentures that are already in the patient.

  The dental tooth measuring contact cap according to the present invention is applied to a dental tooth measuring device, and can photograph a tooth as a subject without being influenced by external light and can be positioned at a stable photographing position. Can be used as a contact cap for dental tooth measurement.

It is a perspective view which shows the external appearance of the HMSC apparatus which is a dental tooth measurement (imaging) apparatus which consists of a camera and cradle which can apply the contact cap for imaging | photography of each embodiment of this invention, Comprising: The light-shielding cover open state is shown. It is a perspective view which shows the external appearance of the HMSC apparatus of FIG. 1, Comprising: The light shielding cover closed state is shown. It is a perspective view which shows the external appearance of the cradle of the HMSC apparatus of FIG. 1, Comprising: The shading cover open state is shown. It is a perspective view which shows the external appearance of the cradle of FIG. 3, Comprising: The light shielding cover closed state is shown. It is the perspective view seen from the front side which shows the external appearance of the camera of the HMSC apparatus of FIG. It is the perspective view which looked at the camera of FIG. 5 from the back side. It is the perspective view which looked at the camera of FIG. 5 from the back side upper direction. It is a front view of the camera of FIG. It is a left view of the camera of FIG. It is a right view of the camera of FIG. It is a top view of the camera of FIG. It is a bottom view of the camera of FIG. It is a rear view of the camera of FIG. It is A arrow directional view of FIG. FIG. 4 is a front view of the cradle of FIG. 3. FIG. 4 is a left side view of the cradle of FIG. 3. FIG. 4 is a right side view of the cradle of FIG. 3. It is a top view of the cradle of FIG. FIG. 4 is a bottom view of the cradle of FIG. 3. FIG. 4 is a rear view of the cradle of FIG. 3. It is a B arrow line view of FIG. FIG. 6 is a front view of a state in which the camera of FIG. 5 is attached to the cradle of FIG. 3. FIG. 6 is a left side view of the camera of FIG. 5 attached to the cradle of FIG. 3. FIG. 6 is a right side view of the state in which the camera of FIG. 5 is attached to the cradle of FIG. 3. FIG. 6 is a plan view of a state where the camera of FIG. 5 is attached to the cradle of FIG. 3. FIG. 6 is a bottom view of the camera of FIG. 5 mounted on the cradle of FIG. 3. FIG. 6 is a rear view of the camera of FIG. 5 attached to the cradle of FIG. 3. It is C arrow line view of FIG. It is a front view which shows the state which mounted | wore the camera of FIG. 5 with the contact cap for imaging | photography of 2nd embodiment mentioned later of this invention. FIG. 30 is a left side view of the camera with the contact cap of FIG. 29 attached. FIG. 30 is a right side view of the state in which the contact cap of FIG. 29 is attached to the camera. FIG. 30 is a plan view of a state in which the contact cap of FIG. 29 is attached to the camera. FIG. 30 is a bottom view of a state in which the contact cap of FIG. 29 is attached to the camera. It is a front view of the contact cap of the first embodiment of the present invention. FIG. 35 is a left side view of the contact cap of FIG. 34. FIG. 35 is a right side view of the contact cap of FIG. 34. FIG. 35 is a plan view of the contact cap of FIG. 34. FIG. 35 is a bottom view of the contact cap of FIG. 34. FIG. 35 is a rear view of the contact cap of FIG. 34. It is DD sectional drawing of FIG. It is the figure which showed the state which attaches the contact cap of FIG. 34 to the camera of FIG. 5, and performs single-tooth photography on the cross section of FIG. The E arrow line view of FIG. 41 is shown. FIG. 35 is a front view of a contact cap to which a modification of the opening of the contact cap of FIG. 34 is applied. It is a front view of the contact cap of 2nd embodiment of this invention. FIG. 45 is a left side view of the contact cap of FIG. 44. FIG. 45 is a right side view of the contact cap of FIG. 44. FIG. 45 is a plan view of the contact cap of FIG. 44. FIG. 45 is a bottom view of the contact cap of FIG. 44. FIG. 45 is a rear view of the contact cap of FIG. 44. It is FF sectional drawing of FIG. It is the figure which showed the state which attaches the contact cap of FIG. 44 to the camera of FIG. 5, and performs single-tooth imaging | photography on the cross section of FIG. The G arrow line view of FIG. 51 is shown. It is a longitudinal cross-sectional view (corresponding to the cross-sectional view of FIG. 50) of the contact cap of the third embodiment of the present invention. It is a H arrow line view of FIG. FIG. 56 is a cross-sectional view of FIG. 53 illustrating a state in which the contact cap of FIG. 53 is attached to the camera of FIG. FIG. 56 is a view on arrow I of FIG. 55.

Explanation of symbols

31, 31A, 31B, 31C
... Contact cap 31a ... Center opening (opening)
31j ... cap part 31f ... bite part (protrusion part)
31g ... Fin 51 ... Upper incisor (tooth to be measured)
52 ... Lower incisor (tooth to be measured)
t1 ... Upper side thickness (one side thickness)
t2 ... Bottom side thickness (thickness of other side)

Agent Patent Attorney Susumu Ito

Claims (9)

In a contact cap for a dental tooth measuring device,
When photographing the tooth measurement tooth by the tooth measurement device, the cap portion that can be mounted in a state of covering the periphery of the photographing window portion of the tooth measurement device, and is formed of a flexible elastically deformable material ,
An opening disposed in front of the cap portion and facing the shooting window portion in a mounted state;
A protruding portion that is arranged to protrude forward from the central portion of the lower side of the opening, and has a shape that can be bitten by the tooth to be measured;
A contact cap for a dental tooth measuring apparatus , comprising: The contact cap for a dental tooth measuring apparatus according to claim 1, wherein a concave portion is provided on the upper surface of the protrusion . The contact cap for a dental tooth measuring device according to claim 1, wherein the cap portion is made of a black material . The contact cap for a dental tooth measuring apparatus according to claim 3, wherein the inner surface of the cap portion is a textured surface . 5. The dental tooth measuring device contact according to claim 1, wherein the size of the opening is a size larger by a predetermined margin than the size of the tooth to be measured. cap. Furthermore, the left and right sides of the opening are provided with a pair of flexible thin light-shielding fins projecting forward, as defined in any one of claims 1-5. Contact cap for dental measuring device. The inner surface of the cap part is vertically and horizontally symmetrical,
The contact cap for a dental tooth measuring device according to any one of claims 1 to 6, wherein the cap portion can be mounted upside down with respect to the tooth measuring device. The dental tooth measurement according to any one of claims 1 to 7, wherein two extending portions extending respectively rearward of the cap portion are provided on the left and right sides of the cap portion. Contact cap for equipment.   A dental tooth measuring apparatus comprising a camera that performs multiband imaging of a tooth to be measured in a state in which the contact cap for a dental tooth measuring apparatus according to claim 1 is attached.

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