Abstract: In order to improve manufacturing convenience and precision, the present invention provides a digital denture manufacturing method comprising: a first step of acquiring a three-dimensional work image, on which occlusion information between a target dental arch and an opposing dental arch and implant information of a fixture implanted in the target dental arch are displayed, and preparing a temporary denture in which a binding region formed to correspond to a binding portion profile of an abutment fastened to the fixture is arrayed and arranged; a second step of acquiring an auxiliary scan image for the temporary denture; a third step of acquiring, from the auxiliary scan image, a correction surface image on three-dimensional surface information of an inner surface-side engagement groove of the temporary denture including the binding region; and a fourth step of designing and manufacturing a digital denture having a virtual binding groove corresponding to the position and the shape of the three-dimensional sur

Abstract: The present invention relates to a method and a device for detecting a nerve, the method comprising the steps of: acquiring a learning image including a plurality of splices arranged in a coronal plane direction; generating learning data in which a nerve and mental tubercle and/or a mandibular angle, serving as a reference for detecting the nerve, are set in the learning image, and learning the learning data so as to generate a learning model; inputting a target image into the learning model; and detecting a nerve from the target image on the basis of the learning data, and application through other embodiments is possible.

Abstract: The present invention provides an apparatus for preprocessing image data, comprising: a preprocessor for reducing a mesh resolution of an oral scan image to a reference resolution; a start line detector for detecting, from the preprocessed oral scan image, a start line corresponding to a bottom of a gum area; a boundary line detector for detecting, from the preprocessed oral scan image, a boundary line between a dental area and a gum area; and an area separator for separating a gum area from the oral scan image by using the start line and the boundary line.

Abstract: An image registration method using a dental object, comprises a generation step of generating a plurality of reference points spaced apart from each other in an oral scan image of a registration target and a computed tomography (CT) image of a registration target, respectively; and a step of registering the oral scan image of the registration target and the CT image of the registration target by using the reference point of the oral scan image (a first reference point) and the reference point of the CT image (a second reference point), wherein the first and second reference points comprise a reference point for one frontmost tooth in the front teeth area and a reference point for two teeth on both rearmost sides of the back teeth area, and wherein the first reference point is derived from an object which is a simplified shape of the teeth.

Abstract: Provided is a dental image registration device comprising: an outermost boundary detection unit for detecting, from first teeth image data, a first outermost boundary region which is the outermost boundary region of dentition, and detecting, from second teeth image data, a second outermost boundary region which is the outermost boundary region of the dentition; and an image registration unit which registers the first and second teeth image data on the basis of a first inscribed circle inscribed within the first outermost boundary region and a second inscribed circle inscribed within the outermost boundary region, or registers the first and second teeth image data on the basis of a first central point of the first outermost boundary region and a second central point of the second outermost boundary region.

Abstract: The present invention provides a digital dental prosthesis manufacturing method including a first step in which a three-dimensional work image is acquired, the three-dimensional work image including surface information on an inner side of an oral cavity and a target dental arch in which fixtures are placed and occlusion information between the target dental arch and an opposing dental arch; a second step in which a temporary digital dental prosthesis is designed and manufactured; a third step in which the manufactured temporary digital dental prosthesis is installed on the target dental arch; and a fourth step in which a virtual coupling groove, which corresponds to surface information on the corrected coupling region, is set in an inner surface profile, which is set according to surface information on the corrected temporary shape-matching surface that is included in the corrected scan image, and a final digital dental prosthesis is designed and manufactured.

Abstract: The present invention relates to an Aspergillus niger F22 strain having a nematicidal activity against plant-parasitic nematodes; a nematicidal microorganism agent against plant-parasitic nematodes, containing, as an active ingredient, the strain, a spore, a fungal hyphal mass, or a culture liquid thereof; a method for controlling plant-parasitic nematodes, having a step of administering the microorganism agent to a crop, a crop seed, or a field; and a method for preparation of a nematicidal microorganism agent against plant-parasitic nematodes, having a step of culturing the strain.

Abstract: The overdenture holder device includes a holder abutment in which a through insertion portion is formed to be opened in both directions of a body portion having a bottom end portion inserted into a top end of the fixture and protruding upward and a fastening hole penetrates along a longitudinal direction and has an inner circumferential side on which a holding step protruding radially inward is formed, a fastening screw having a bottom end portion inserted into the fastening hole to be screw-coupled with the inside of the top end of the fixture and a head portion formed at a top end portion and to be held by the holding step, and a pressurizing device coupled with a top end of the body portion and configured to provide a pressurizing force such that an outer surface of the fixing bar is fixed to an inside of the through insertion portion.

Abstract: The present invention provides a dental restoration manufacturing method for improving the precision and reliability of a dental restoration, the dental restoration manufacturing method comprising: a first step for acquiring, through an imaging device, each of a scanning image of a part where implantation is to take place and a corresponding antagonistic part, before the mounting of a coupling bite disposed between the part where implantation is to take place and the corresponding antagonistic part, and after the mounting of the inner and outer surface portions of the coupling bite in consideration of a vertical dimension of a patient by occlusal pressure, a CT image of the oral cavity occluded by means of the coupling bite, and a gothic arch motion image of a three-dimensional motion trajectory of the temporomandibular joint of the patient in a state where a mastication protrusion part, provided on the coupling bite, and the corresponding antagonistic part are mutually occluded, and transmitting the images t

Abstract: Disclosed is a method of manufacturing a digital overdenture. The method includes a first operation of aligning and setting a plurality of pieces of implantation information of fixtures according to alveolar bone information in a planning image, a second operation of designing and manufacturing a surgical guide and a holder abutment mounting guide, a third operation of preparing a temporary denture corrected to form a temporary holder insertion portion having an inner surface part into which a holder device is inserted to be shape-matched therewith, in which the surgical guide is installed in the target arch to implant the fixtures and the fixing bar is fixed to the holder abutments moved to and coupled with top ends of the fixtures by the holder abutment mounting guide, and a fourth operation of manufacturing a digital overdenture including an artificial tooth portion and an artificial gum portion.

Abstract: In order to improve the reliability of a dental restoration, the present invention provides a method of implanting the dental restoration.

Abstract: The present disclosure provides a dental implant packaging container including: a see-through body unit in which upper and lower sides are open to form an accommodation space so that a dental implant fixture is accommodated therein and which is made of a material through which UV light for surface modification passes; a first cap unit which includes a hollow first cap body configured to cover an upper end portion of the accommodation space, a first fixing part protruding from a lower portion of the first cap body and having a coupling surface formed on an outer side portion, and a protruding part provided to protrude from the first fixing; a hollow holder unit which has an outer circumferential portion coupled to an inner circumference of the see-through body unit and an inner circumferential portion coupled to the coupling surface to mediate the connection between the see-through body unit and the first cap unit; and a second cap unit which includes a second fixing part fitted and coupled to a lower end port

Abstract: Disclosed is a method of manufacturing a digital overdenture. The method includes a first operation of aligning and setting a plurality of pieces of implantation information of fixtures according to alveolar bone information in a planning image, a second operation of designing and manufacturing a surgical guide and a holder abutment mounting guide, a third operation of preparing a temporary denture corrected to form a temporary holder insertion portion having an inner surface part into which a holder device is inserted to be shape-matched therewith, in which the surgical guide is installed in the target arch to implant the fixtures and the fixing bar is fixed to the holder abutments moved to and coupled with top ends of the fixtures by the holder abutment mounting guide, and a fourth operation of manufacturing a digital overdenture including an artificial tooth portion and an artificial gum portion.