Titanium Guided Bone Regeneration for Buccal Defects
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Solution Overview
Problem
Existing bone regeneration membranes, both absorbable and non-absorbable, face challenges such as tissue irritation, interference with bone regeneration, and the need for additional operations, while lacking optimal modeling and symmetry in reconstructing bone structures.
Innovation Solution
A titanium-based guided bone regeneration device with a smooth, hermetic wall that mimics bone structures, allowing vertical and horizontal augmentation, and includes microperforations and windows for biomaterial insertion, ensuring easy removal and stable bone reconstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If resorbable membranes are used, then removal operation is avoided, but bone regeneration may be interfered with during resorption/healing process
Solution Approach 1:
The invention extracts the resorbable membrane from the system and replaces it with a non-resorbable titanium mesh that remains stable throughout the healing process. The titanium mesh provides structural support without undergoing resorption, thereby eliminating the interference between membrane degradation and bone regeneration while still avoiding the need for surgical removal through its biocompatible design.
Solution Approach 2:
The invention changes the material parameter from resorbable to non-resorbable titanium, fundamentally altering the temporal behavior of the barrier membrane. This parameter change ensures the membrane maintains its integrity throughout the entire bone regeneration period without degrading, thus preventing any potential interference with the bone formation process.
2Reliability
If non-resorbable membranes are used, then bone regeneration is stabilized, but screw fastening and second operation for removal are required
Solution Approach 1:
The titanium mesh employs local quality variations through its woven structure, creating regions with different mechanical properties. The interwoven wires provide both structural stability for bone regeneration and localized flexibility that allows the mesh to conform to the defect site without requiring additional fastening elements, thereby simplifying the overall device complexity.
Solution Approach 2:
The titanium mesh utilizes asymmetric wire arrangement and varying wire diameters within the weave pattern to achieve optimal mechanical properties. This asymmetric structure provides enhanced stability in directions critical for bone regeneration while maintaining ease of placement and removal, eliminating the need for screw fastening and complex removal procedures.
3Object-affected harmful factors
If smooth wall device is used, then tissue adhesion is minimized, but biomaterial stability may be compromised
Solution Approach 1:
The titanium mesh is segmented into interconnected wire elements that create a three-dimensional framework. This segmentation allows the smooth outer surface to minimize tissue adhesion while the internal wire structure provides multiple anchoring points and mechanical interlocking capabilities that secure the biomaterial, thereby maintaining stability without requiring surface roughness.
Solution Approach 2:
The invention transitions from a two-dimensional smooth membrane to a three-dimensional mesh structure. This dimensional change allows the device to maintain a smooth outer surface that resists tissue adhesion while the third dimension provides volumetric support and mechanical interlocking capacity to stabilize the biomaterial filling.
Data Source
AI summary
The present invention relates to a guided bone regeneration device that is intended for the reconstruction of a buccal bone defect and is composed of an optionally micro-perforated smooth wall which is made of titanium and has a shape that covers said buccal bone defect.The present invention also relates to a process for manufacturing a device of the invention, comprising a step of constructing the device of the invention according to a three-dimensional representation obtained by means of a technique of maxillary-dental imaging of the bone defect.