Method for estimating at least one of shape, position and orientation of a dental restoration

A tooth restoration and dental technology, which is applied in dental prosthetics, dental prosthesis, dentistry, etc., and can solve problems such as the shape and posture of prosthetic crown restorations are not optimal

Active Publication Date: 2019-02-05
NOBEL BIOCARE SERVICES AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The estimated shape and pose of the prosthetic crown restoration is not optimal and requires (significant) further manual refinement by the user

Method used

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  • Method for estimating at least one of shape, position and orientation of a dental restoration
  • Method for estimating at least one of shape, position and orientation of a dental restoration
  • Method for estimating at least one of shape, position and orientation of a dental restoration

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Embodiment Construction

[0137] The present invention will be described with respect to particular embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims.

[0138] Furthermore, in the present description and claims, the terms first, second etc. are used to distinguish similar elements and not necessarily to describe a sequence temporally, spatially, in order or in any other way. It is to be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the invention described herein are capable of operation in other sequences than those described or illustrated herein.

[0139] It should be noted that the term "comprising", used in the claims, should not be interpreted as being limited to the means listed thereafter; it does not exclude other elements or steps. It is thus to be interpreted as specifying the presence of said features, integers, steps or components as mentioned, but not excludi...

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Abstract

The present invention provides a method for obtaining an estimation of the shape, position and / or orientation of one or more existing teeth of a patient or of one or more teeth to be included in a dental restoration destined to replace one or more missing teeth in a partially edentulous patient. The method involves adapting a virtual teeth setup to the intra-oral anatomical situation of the patient, wherein said virtual teeth setup comprises separated surface meshes of individual teeth positioned in a dental arch or segment thereof. The virtual teeth setup is adapted by optimizing an energy function, which represents a quality measure for said virtual teeth setup, and using a statistical model, which describes for a given dentition or segment thereof a probability distribution for at leastthe shapes of individual teeth, the relations between shapes of neighbouring teeth and / or relations between positions and / or orientations of neighbouring teeth. The adapted virtual teeth setup resulting from said optimized energy function is subsequently used to estimate said sought for shape, position and / or orientation.

Description

technical field [0001] The present invention generally relates to the field of methods for determining virtual tooth arrangements for prosthesis driven planning or orthodontic planning. The invention also relates to the field of methods for segmenting a scan of the inner surface of the mouth. Background technique [0002] Prosthetic restorations for missing or damaged teeth greatly impact quality of life due to the large impact teeth have on social interaction and well-being. This is attributed to the important functions of the teeth, such as digesting food, speech, and maintaining the shape of the lower face. A routinely used, reliable and recognized technology for prosthetic restorations of teeth is based on dental implants. Dental implant-based treatments aim at functional and esthetic results with minimal patient discomfort and short treatment times. Careful and detailed planning of dental implants and the proper tools to transfer said plans into the operating room ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/00
CPCA61C13/0004A61B34/10A61C7/002A61C9/0046A61C13/34A61C2007/004A61B2034/108G06F30/20G06F30/17A61C8/0001A61C8/0096A61C9/004G06T17/20G06T19/20G06T2210/41G06T2219/2004G06T2219/2016G06T2219/2021
Inventor 约翰内斯·科伊斯特尔曼斯彼得·范利普特维尔勒·沃特斯沃特·默勒曼
Owner NOBEL BIOCARE SERVICES AG
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