Multi-Layer Dental Bone Graft Training Model with Adhesive Tissue Simulation
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Solution Overview
Problem
Bone graft procedures are complex and require extensive training, necessitating the replication of real-life conditions for effective practice.
Innovation Solution
The development of a model and system that includes a base representing a dental arch with defects, a multi-layer tissue model with adhesive layers, and compatible bone graft materials, allowing for simulation of bone graft protocols such as socket preservation, sinus lift, and block graft procedures, along with artificial skin that can be incised and sutured to mimic human skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a training model for bone graft procedures is created, then training effectiveness and skill acquisition are improved, but the complexity of replicating real-life conditions increases
Solution Approach 1:
The training model is divided into multiple independent layers including a base layer representing bone, a connective tissue layer, and a gingival layer. Each layer can be separately manufactured, assembled, and replaced, allowing complex anatomical structures to be replicated without requiring the entire model to be a single complex piece.
Solution Approach 2:
The model creates simplified copies of real anatomical structures using synthetic materials that replicate the visual appearance and basic tactile properties of actual tissues. This allows trainees to practice on realistic-looking structures without requiring actual human tissue, balancing realism with practicality.
2Stability of the object's composition
If multi-layer tissue models with adhesive layers are used to cover defects, then tissue stability and realism are improved, but the difficulty of manufacturing and assembly increases
Solution Approach 1:
Adhesive layers are pre-applied to the tissue model layers during manufacturing, and release liners are pre-attached to protect the adhesive surfaces. This preliminary preparation allows the layers to be assembled by simply peeling off the release liners and pressing the layers together, eliminating the need for complex assembly procedures while maintaining stable tissue coverage.
3Adaptability or versatility
If artificial skin capable of incision and suture is developed, then surgical skill training is improved, but material complexity and cost increase
Solution Approach 1:
The artificial skin material is designed with locally differentiated properties: the outer gingival layer provides a smooth surface for incision practice, while the underlying connective tissue layer provides appropriate resistance for suturing. This localized variation in material properties allows multiple surgical skills to be trained on a single material without requiring multiple different materials.
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
Enables dentists and dental students to practice and perfect bone grafting techniques in a realistic manner, improving their skills and confidence before performing clinical procedures, thereby enhancing the success of implant surgery.
Implementation Method 1
The second adhesive layer, affixed to the connective tissue simulating layer opposite the first layer, is configured to adhere the multi-layer tissue model to the base. The second adhesive layer may be a pressure-sensitive adhesive having a peel force, relative to the surface of the base, that simulates a peel force of actual connective tissue to bone.
Data Source
AI summary
The disclosed apparatuses, methods, and systems provide for simulations of real-life bone graft procedures. One embodiment is a model that includes a base in the shape of at least a portion of a maxillary or mandibular dental arch, and includes a defect on its surface. The model also includes a multi-layer tissue model configured to overlay at least a portion of the base in a covering relationship with the defect and surrounding tissue. The multi-layer tissue model includes a gingival simulating layer, connective tissue simulating layer, and two adhesive layers. The first of the two adhesive layers connects the connective tissue simulating layer to the gingival simulating layer, and the second adhesive layer, affixed to the connective tissue simulating layer opposite the first layer, is configured to adhere the multi-layer tissue model to the base. The multi-layer tissue model also includes a removable backing covering the second adhesive layer.