3D Printed Dental Scaffold with Guide Hole for Implant Alignment
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Solution Overview
Problem
The challenge lies in accurately and safely placing a dental implant in a tooth extraction socket after tooth extraction, particularly due to alveolar bone loss, which complicates the determination of implantation position and angle, and prolongs the treatment period.
Innovation Solution
A method involving 3D printing technology to manufacture a scaffold based on dental CT data, where a 3D model of alveolar bones and teeth is created, allowing for virtual tooth extraction and the production of a scaffold with a guide hole for the dental implant, ensuring accurate alignment and placement of the implant post-extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bone grafting techniques are used to maintain alveolar bone form, then the bone structure is preserved, but the treatment period is prolonged and implantation becomes difficult when veneer block bone is lost
Solution Approach 1:
The patent applies preliminary action by creating a custom scaffold before tooth extraction that precisely fits the patient's unique alveolar bone structure. The scaffold is designed in advance using 3D imaging technology to match the specific geometry of the extraction socket, ensuring immediate structural support upon implantation without requiring prolonged healing or multiple surgical interventions
2Ease of operation
If dental implant is placed after determining implantation position and angle, then the implant can be positioned, but it becomes very difficult to determine position and angle when alveolar bone is lost
Solution Approach 1:
The patent applies copying by creating an exact three-dimensional replica of the patient's alveolar bone structure through 3D imaging and digital modeling. This virtual copy allows for precise measurement and determination of implantation position and angle before the actual surgery, eliminating the difficulty of measurement that arises when alveolar bone is lost during conventional procedures
Solution Approach 2:
The patent applies parameter changes by transforming the implantation planning process from direct physical measurement on the patient's bone to digital parameter analysis in a virtual 3D model. This allows for precise control and adjustment of implantation parameters such as position, angle, and depth through digital manipulation before physical implementation
3Loss of information
If conventional techniques merely predict implantation position without considering tooth extraction socket, then implantation position can be estimated, but it is difficult to solve implantation problems caused by tooth extraction socket
Solution Approach 1:
The patent applies merging by combining two previously separate processes into one integrated system: tooth extraction socket analysis and implantation position determination. The 3D imaging technology simultaneously captures both the extraction socket geometry and the optimal implantation parameters, ensuring that the implantation plan is specifically adapted to the patient's unique socket characteristics rather than relying on generic predictions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables immediate and accurate dental implantation without direct tooth extraction, allowing for secure and precise placement of the scaffold and implant, even in cases of alveolar bone loss, thereby reducing treatment duration.
Implementation Method 1
manufacturing, by using a three-dimensional (3D) printer, a 3D model including alveolar bones and teeth
Implementation Method 2
image data of the scaffold is amended to allow a guide hole for implanting the dental implant to be formed in the scaffold
Data Source
AI summary
Provided is a technique of allowing a dental implant to be stably placed after extraction, to be accurately placed in a tooth extraction socket, and to be stably placed in the tooth extraction socket according to implantation position and angle. A method of manufacturing a scaffold for treatment of a tooth extraction socket and implantation of a dental implant includes receiving dental implantation information of dental CT data which is previously input via a terminal of a manager; manufacturing, by using a three-dimensional (3D) printer, a 3D model comprising alveolar bones and teeth, which are distinguished therebetween, based on a medical image file that is a medical image file (DICOM file) of the dental CT data; performing virtual tooth-extraction by removing, from the manufactured 3D model, a region corresponding to a tooth in a tooth-extraction target area; and manufacturing, by using the 3D printer, a scaffold to be placed in an actual tooth extraction socket according to a shape of a tooth extraction socket that exists in the manufactured 3D model as a result of the virtual tooth-extraction, wherein, when the scaffold is manufactured, image data of the scaffold is amended to allow a guide hole for implanting the dental implant to be formed in the scaffold based on the dental implantation information.