Palatal Implant Self-Tapping Design for Overdenture
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Solution Overview
Problem
The surgical procedure for general implant placement in the upper jaw is challenging under abnormal conditions such as insufficient bone density, making it difficult to efficiently create an overdenture.
Innovation Solution
A palatal implant with a self-tapping sharpening portion and a continuously tapered screw portion that allows for implantation without drilling, combined with a cuff and adjunct connecting mechanism for secure fixation, facilitating easy and efficient placement in abnormal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If general implant placement is performed in the upper jaw, then fixation strength is improved, but surgical difficulty increases under abnormal bone conditions
Solution Approach 1:
The implant body incorporates a self-tapping sharpening portion that enables the implant to create its own insertion path and secure fixation without requiring pre-drilling or complex surgical preparation. The self-tapping threads automatically engage with the bone tissue during insertion, providing immediate fixation strength while simplifying the surgical procedure under abnormal bone conditions.
Solution Approach 2:
The implant design features a continuously tapered screw portion with varying thread parameters along its length. The thread pitch, depth, and angle change continuously from the apex to the head, optimizing engagement with bone tissue at different depths. This parameter variation allows the implant to achieve strong fixation in compromised bone by adapting the mechanical interaction to local bone density and quality.
2Manufacturing precision
If traditional implant placement with drilling is used, then placement precision is improved, but procedure time and complexity increase
Solution Approach 1:
The invention extracts and eliminates the drilling step from the traditional implant placement sequence. The self-tapping sharpening portion integrates the cutting and threading functions directly into the implant body, removing the need for separate drill bits, pilot holes, and thread preparation. This reduces procedural complexity while maintaining placement precision through the implant's guided self-insertion mechanism.
Solution Approach 2:
The implant design merges multiple functions into a single component: the implant body simultaneously serves as the fixation element, the cutting tool, and the threading mechanism. The self-tapping sharpening portion combines apex penetration, bone cutting, and thread formation in one integrated structure, simplifying the overall procedure while ensuring precise placement through controlled self-insertion.
3Stability of the object's composition
If multiple implants are placed for overdenture support, then stability is improved, but cost and treatment time increase
Solution Approach 1:
The continuously tapered screw portion with optimized thread parameters enables each implant to achieve maximum fixation strength with fewer implants. The varying thread geometry optimizes bone engagement efficiency, allowing the overdenture to be stabilized with minimal implant numbers while maintaining long-term stability and reducing overall treatment time and cost.
Data Source
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AI summary
Disclosed is a palatal implant for an overdenture. The palatal implant for an overdenture according to one embodiment of the present invention comprises: an implant insertion body which is inserted in a predetermined insertion position of the palatal by means of operation of a screw portion formed on the outer surface of an overdenture; and a head which has a cuff connected to the upper portion of the implant insertion body, and which is externally exposed from the insertion position.