CBCT-Based Root-Shaped Implant Modeling for Precise Socket Matching

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Solution Overview

Problem

Traditional dental implants often fail to match the unique specifications of individual tooth roots, leading to a cumbersome process, long recovery cycles, multiple surgeries, increased pain, and higher postoperative risks.

Innovation Solution

A method for generating a personalized root-shaped implant model involves capturing CBCT images, performing image segmentation and reconstruction, selecting a target tooth model, and processing it to create a personalized implant model, which is then manufactured and used in a two-segment implant technique to minimize surgical cycles and improve compatibility with the patient's alveolar socket.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional uniform specification implants are used, then manufacturing and implantation are simplified, but the implants cannot be well matched with the patient's various kinds of tooth roots, leading to cumbersome processes and long recovery cycles

Engineering Contradiction:

Improvematching precision with patient's tooth rootsVSAvoidcomplexity of implantation process

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent performs preliminary digital planning and customization of the implant based on the patient's original tooth root morphology before the surgical procedure. The implant design is predetermined using CBCT imaging and 3D modeling, allowing the implant to be custom-fitted to the patient's specific anatomical structure, thereby achieving precise matching while streamlining the actual surgical process

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent creates a digital copy of the patient's original tooth root using CBCT imaging and 3D reconstruction technology. This digital model serves as the basis for designing the custom implant, replicating the unique morphology of the patient's tooth root to ensure precise anatomical matching without requiring complex manual adaptation during surgery

Inventive Principle:

Principle #26Copying

2Reliability

If traditional punched holes and threading methods are used, then implantation can be achieved, but multiple surgeries are required, increasing patient pain and postoperative risk

Engineering Contradiction:

Improveosseointegration qualityVSAvoidnumber of surgical cycles

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preliminary digital planning to design the implant with optimized surface characteristics and geometric features that promote immediate osseointegration. The implant is customized before surgery to match the patient's bone structure, allowing for single-stage implantation that eliminates the need for multiple surgical procedures while ensuring reliable bone integration

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent extracts and eliminates the intermediate healing phase required by traditional multi-stage implantation methods. By using custom-designed implants with optimized surface treatments and geometric features, the method achieves direct osseointegration in a single surgical stage, removing the unnecessary waiting period and additional surgery required in conventional approaches

Inventive Principle:

Principle #2Taking out (Extraction)

3Manufacturing precision

If traditional implants are used, then standard manufacturing processes can be applied, but the implants do not precisely match the patient's tooth roots, resulting in bone resorption and reduced mechanical performance

Engineering Contradiction:

Improveprecision of implant-to-tooth-root matchingVSAvoidmanufacturing complexity of personalized implants

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent uses CBCT imaging to create an accurate digital copy of the patient's original tooth root, which serves as the template for manufacturing the custom implant. This digital replication approach achieves high manufacturing precision by directly copying the patient's unique anatomy, while the automated 3D modeling and manufacturing processes keep production complexity manageable

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent modifies the implant design parameters based on the patient's specific tooth root morphology obtained from CBCT imaging. By adjusting geometric parameters such as diameter, length, and surface characteristics to match the patient's anatomy, the method achieves precise fitting while using systematic parameter optimization that streamlines the manufacturing process

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250318903A1Methods for personalized root-shaped implant

Publication Date: 2025.10.16 HANGZHOU TOOTH NATURE BIOTECHNOLOGY CO LTD

AI summary

Methods for a personalized root-shaped implant are disclosed. The method for generating a personalized root-shaped implant model includes capturing a CBCT image of a missing teeth area of a patient; performing image segmentation and model reconstruction on the CBCT image and obtains a full-mouth original teeth model; selecting a target tooth model from the full-mouth original teeth model; and processing the target tooth model in a preset strategy such that the personalized root-shaped implant model is generated.