Method and Device with Regard to Data Transmission in the Production of Denture Parts

Abstract

The invention relates to a method in which at a first location (A), such as a dental technician's laboratory or a dentist's surgery, digital image data (18) in the form of single images and/or image sequences are generated and these are transmitted to a second location (B), such as a production centre for denture parts, wherein the digital image data (18) and/or image sequences relate to information on the manufacture of denture parts (15). Furthermore, the invention relates to a scanning device for obtaining data records of dental models with a scanning appliance, such as a scanning head and with a camera, wherein remote data transmission means (8) are provided for transmitting digital image data (18) from the camera in the form of single images and/or image sequences to another location (B), such as a production centre.

Claims

1-41. (canceled)

42. A method, comprising: generating, using a digital camera, digital image data at a first location in the form of at least one of single images and image sequences, transmitting the digital image data, before manufacture of a denture part, from the first location to a second location, monitoring, from the second location, generation of data records that present a shape of a dental model, wherein a scanning device comprises a scanning appliance and the digital camera, and the digital image data relate to information on manufacture of denture parts.

43. The method according to claim 42, wherein the first location is a dental technician's laboratory or a dentist's surgery.

44. The method according to claim 42, wherein the second location is a production center for denture parts.

45. The method according to claim 42, wherein the digital image data show one of a dental model together with the denture part and a residual dental region together with the denture part.

46. The method according to claim 42, wherein the digital image data comprise images of at least one of denture parts and dental models.

47. The method according to claim 46, wherein the images of at least one of denture parts and dental models are at least one of plaster models and residual dental regions.

48. The method according to claim 42, wherein transmitting the digital image data takes place via one of the Internet, a telephone line, DSL, and mobile radio.

49. The method according to claim 42, wherein the camera is linked to a computer connected to the scanning device.

50. The method according to claim 49, wherein the camera is permanently connected to the scanning device.

51. The method according to claim 49, wherein the camera is removably coupled to the scanning device and is adapted to communicate with at least one of the scanning appliance and a computer via one of a cable and wireless means, and the wireless means includes one of radio frequency communication and an infrared interface.

52. The method according to claim 42, further comprising displaying the transmitted digital image data at the second location on at least one of a monitor and a hardcopy printout.

53. The method according to claim 42, further comprising transmitting audio signals between the first location and the second location.

54. The method according to claim 53, further comprising saving at least one of the digital image data and the audio signals at the second location.

55. The method according to claim 53, further comprising transmitting at least one of the digital image data and the audio signals to a third location, to enable a tripartite conference connection among the third location, the first location, and the second location.

56. The method according to claim 55, wherein the third location is defined by a location of at least one of a dentist and a dental technician.

57. The method according to claim 42, further comprising: making a decision about a new manufacture of denture parts, and recording the decision in a production planning department at the second location, wherein the decision is made at the second location at least one of automatically and according to data entry by an operating person.

58. The method according to claim 42, further comprising automatically evaluating the digital image data at one of the first location and the second location.

59. The method according to claim 42, further comprising manufacturing a denture part prior to generating the digital image data.

60. The method according to claim 42, further comprising manufacturing a denture part after transmitting the digital image data, wherein the digital image data includes images of a dental model of a residual dental region.

61. The method according to claim 42, further comprising transmitting at least one of instructions for operation of the scanning device and control commands from the second location to the scanning device, wherein the at least one of instructions and control commands relate to generation of a data record of a dental model.

62. The method according to claim 42, further comprising at least one of the following: scanning the shape of a dental model, at the first location, modeling a data record for a denture part, at the first location, and transmitting the data record of the denture part from the first location to the second location, and further comprising manufacturing a denture part at the second location by automated means, and dispatching the denture part from the second location to the first location.

63. The method according to claim 42, further comprising providing assistance at the first location from the second location.

64. The method according to claim 42, further comprising providing control commands from the second location to the scanning device at the first location.

Description

[0025] Advantageous embodiments are explained based on the enclosed figures. The following are illustrated:

[0026] FIG. 1 a schematic illustration of a scanning device,

[0027] FIG. 2 a schematic illustration of the devices at the first and second locations,

[0028] FIG. 3 a schematic illustration of the devices at the first and second locations,

[0029] FIG. 4 a schematic illustration of a scanning device and a camera,

[0030] FIG. 5 a schematic illustration of the devices at the first, second and third locations.

[0031] In FIG. 1 a scanning device 1 with a scanning appliance 2 is illustrated. The scanning appliance 2 can be an optical or mechanical scanning head with which it is possible to scan the surface or parts of the surface of a model 4 of a residual dental region and thus to digitise it. The model 4, which for example may be a plaster model, is in this respect for example supported on a rotating plate 5, which in turn is supported on a rotating plate 6. The model 4 can be brought under a camera 3 with the rotating plate 6 (refer to FIG. 1b). An image of the model 4 can be recorded with the camera 3 to fix regions within which scanning of the model 4 occurs with the scanning head 2. The camera 3 is generally used for the optimum acquisition of the shape of the model 4.

[0032] The camera 3 can be plugged into or onto the scanning device in a defined position. It can be permanently connected or also removable.

[0033] In FIG. 2 the automated operation during the manufacture of denture parts is illustrated in an overview. A model 4 is brought into a scanning device 1 (also called a scanner) where it is scanned with the aid of the camera 3 and a scanning head 2. The acquired data are saved in a computer 8, so that the data record 9 of a denture part can be modelled with the computer 8. This data record 9 is transmitted with suitable remote data transmission means 10 to a second location (B). At the location (B), which can be the production centre, the data of the denture part 9 are received with a suitable device 12, evaluated and appropriately conditioned for production with a machine. A milling machine 13 schematically illustrated in FIG. 2 mills a denture part 15 from a blank 14. This is packaged at the location (B) and dispatched to the location (A). At the location (A) the denture part 15, which has been made by the machine, is mounted on the dental model 4.

[0034] As illustrated in FIG. 3, the model 4 or the denture part 15 or both can be inserted into the device 1, so that the camera 3 can record one or more images of the model 4, the denture part 15 or both in combination. In this respect the model 4 and/or the denture part 15 can be supported on the rotating table 6 or the rotating table 5, but can also be arranged in any other position relative to the camera 3, for example also in that it is brought into an appropriate position manually. The device 1 in FIG. 3 can be the same as in FIG. 1 or 2, but can also be a separate device which is independent in this regard.

[0035] The camera 3 can also record image sequences, i.e. films or similar sequences. This method is particularly practicable when the denture part 15 does not fit or does not fit well or does not fit well enough on the plaster model 4 or the dental technician is of the opinion that the denture part 15 does not fit or does not fit well or does not fit well enough. A film can illustrate, for example, how attempts at mounting the denture part 15 on the model 4 fail.

[0036] The image data 18 recorded by the camera are transmitted from the location (A) to the location (B), i.e. for example, the production centre. In this way at the location of the production centre a visual impression of the denture part 15 can be obtained in combination with the model 4 in order to be able to assess whether the denture part 15 is inadequate or whether the denture part 15 is in order.

[0037] If the location (B) is the location of the manufacturer of the scanning device and/or of the denture-part manufacturing device, this machine manufacturer can obtain an impression of how his machines function individually or as a complete system. The scanning device 1 or the computer 8 connected to it at location (A) can furthermore comprise a microphone 22 and a loudspeaker 23 and a microphone 24 and a loudspeaker 25 can be provided at the location (B). The microphone 22 and loudspeaker 23 are formed such that both with an open as well as a closed scanning device 1 an audio communication is possible by an operating person adjacent the scanning device 1. Audio data can be transmitted to and fro between the scanning device 1, respectively the connected computer 8, and an appropriate device 19 at the location (B). Consequently it is possible for a dental technician or a dentist at the location (A) to comment on the image data with an operating person at the location (B). Also instructions on orientating the model 4 or the denture part 15 or both can be given by the operating person at the location (B), so that a good impression of the denture part/model can be obtained with the camera 3 at the location (B). The instructions can be transmitted through the audio link to an operating person at the location (B) as well as in the form of control signals to the scanning device 1. Here, for example, the rotating tables 5 and/or 6 and/or the camera 3 can be remotely controlled. The relative position between the model 4 and the camera 3, the optical or electronic magnification, focus, brightness or similar parameters can be adjusted.

[0038] The image or audio data transmitted to the location (B) can be saved with an appropriate storage device 27 through an appropriate data transmission 26 for documentation purposes. It is also possible to pass the transmitted data for later quality assurance or to the development department in order to detect and eliminate systematic errors in the manufacturing process, as illustrated in FIG. 2. Also, images, which are saved for documentation purposes, can be made before the dispatch of the denture parts at the location (B). These saved data can then be recalled in the method.

[0039] In order to assess how a denture part 15 is seated on a model 4, the denture part 15 must first be manufactured. The implementation of the method is however already practicable before the manufacture of the denture part. For example, the production centre can be consulted before the manufacture of the denture part to ascertain whether a certain denture part 15 can be basically manufactured or how it is best manufactured or with which material, etc.

[0040] With the camera 3 the scanning of the model 4 at the location (A) can however also be monitored by a person or software at the location (B). The person or the software at the location (B) can then transmit instructions on the operation of the scanning device or control commands to the scanning device. These instructions or control commands refer for example to the production of the data record of the model, i.e. scanning of the model. In this way training of a person at the location (A) or support for problems with scanning at the location (A) can be provided. Also instructions on the operation of the software used for generating the data record of the denture part can thus be given. Also, training on the use of the software for scanning or for modelling the denture part can take place.

[0041] In FIG. 4a it is shown that the camera 3 can also be removed from the scanning device 1 in order to be able to bring it into a suitable position relative to the model 4 with the denture part 15. The model 4 does not always need to be placed again into the scanning device. The camera 3 here is still connected by a cable 17 to the device 1, so that the image data recorded by the camera 3 can be transmitted to the scanning device 1 (refer to FIG. 4a).

[0042] FIG. 4b furthermore schematically shows that instead of a cable 17 also an appropriate data transmission can occur by radio, infrared or similar method.

[0043] It is also possible that the camera 3 in a state removed from the scanning device 1 initially saves recorded image data and these data are then transmitted to the scanning device 1 or to the connected computer 8 when the camera 3 is again inserted into the scanning device 1.

[0044] The camera 3 can also be connected to the computer 8 instead of to the device 1 in order to transmit image data directly to the computer, either by cable, radio, infrared or the above mentioned memory technology.

[0045] FIG. 5 shows how, in addition to the data transmission between the locations (A) and (B), a third location (C) can be switched in. This may be, for example, the dentist with whom a patient 34 is located. Here an appliance 29 is provided which comprises a camera 33 which can communicate to the appliance 29 via a cable 32 or appropriate radio or memory technology described above. With the camera 33 images of the oral cavity or the residual dental region of the patient 34 can be recorded and transmitted to the location (A) and/or (B). For simpler communication the device 29 can also comprise a microphone 31 and a loudspeaker 30 so that audio communication with the location (A) and/or (B) is also possible.

[0046] Instead of or in addition to the dentist, a company, which supplies and/or has supplied the materials for the denture part, can also be switched in (for video and/or audio transmission).