Custom Tooth Replica Tools for Autotransplantation Socket Preparation
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Solution Overview
Problem
Conventional autotransplantation processes require multiple fittings of donor teeth to achieve a proper fit, leading to prolonged extra-alveolar time and damage to periodontal ligament cells, which negatively impacts the procedure's success.
Innovation Solution
A customized socket preparation tool is used, comprising a tooth replica and a radicular portion with adjustable surfaces for bone contouring, allowing precise fitting and adjustment before extraction, reducing extra-alveolar time and maintaining periodontal membrane integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional processes use donor teeth as guides for preparing new sockets, then the donor teeth serve as the only guide for preparing new sockets at recipient positions, but multiple fittings are required leading to prolonged extra-alveolar time and damage to PDL cells
Solution Approach 1:
A 3D printed replica of the donor tooth is created and used as a guide for preparing the recipient socket before the actual donor tooth is extracted. This preliminary action allows the socket to be pre-shaped to match the donor tooth geometry, eliminating the need for multiple fitting attempts and reducing extra-alveolar time while maintaining PDL cell viability
Solution Approach 2:
A 3D printed replica copy of the donor tooth is fabricated using digital imaging data. This replica serves as a surrogate guide for socket preparation, allowing precise replication of the donor tooth's root geometry and surface features without requiring the actual donor tooth to be repeatedly inserted and removed during the preparation process
2Measurement precision
If multiple fittings are performed to ensure accurate 3D fitting of the replica with the shape of the donor teeth roots, then fitting accuracy is improved, but the process complexity and time consumption increase
Solution Approach 1:
The recipient socket is prepared in advance using the 3D printed replica as a guide, allowing the socket geometry to be precisely matched to the donor tooth root shape before extraction. This preliminary socket preparation eliminates the need for multiple subsequent fitting adjustments, simplifying the overall process while maintaining high 3D fitting accuracy
3Measurement precision
If multiple fittings are required to achieve proper fit, then fitting precision is improved, but injury to PDL cells is minimized only if extra-alveolar time is reduced
Solution Approach 1:
The recipient socket is pre-prepared using the 3D printed replica guide before the donor tooth is extracted. This ensures the socket is already shaped to accept the donor tooth with minimal adjustment needed after extraction, allowing the tooth to be transplanted quickly with minimal extra-alveolar time and thus minimizing PDL cell injury while maintaining fitting precision
Solution Approach 2:
The 3D printed replica accurately copies the donor tooth's root geometry and surface features, allowing the recipient socket to be pre-shaped to match these features. This ensures that when the actual donor tooth is extracted and transplanted, it fits precisely into the pre-prepared socket without requiring prolonged extra-alveolar time or multiple adjustment attempts, thereby protecting PDL cells
Data Source
AI summary
A socket preparation tool configured to facilitate autotransplantation of a donor tooth to a recipient site is provided. The socket preparation tool includes a tooth replica of the donor tooth. A coronal portion is optionally included for facilitating alignment of the tooth replica adjacent teeth during a simulated autotransplantation. A radicular portion includes a smooth surface configured to facilitate compression of soft bone or soft tissue of the tooth replica or a contoured surface adapted for filing or cutting bone of the tooth replica. A cylindrical attachment is configured to be coupled to the tooth replica, such as via a receiver. A method of guided autotransplantation of a donor tooth via the customized socket preparation tool includes at least fitting and adjusting the socket preparation tool coupled to the tooth replica in the recipient site, before extracting the donor tooth.