Dental Prosthesis Guide Hole for Concurrent Implant Placement
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Solution Overview
Problem
The existing process of installing dental prostheses is time-consuming and uncomfortable for patients, requiring a waiting period for bone adaptation and often results in misaligned screw placement due to unguided drilling, which can cause unwanted hole widening and non-straight drilling.
Innovation Solution
A dental prosthesis with a guide hole through its height to direct a drill bit and screw for proper placement, allowing concurrent installation with the screw and eliminating the need for adhesive cement by directly attaching the screw to the prosthesis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a two-step installation process is used (screw first, then prosthesis), then the prosthesis can be securely attached to the bone, but the procedure becomes time-consuming and requires a waiting period for bone adaptation
Solution Approach 1:
The patent combines the prosthesis installation and screw installation into a single concurrent procedure. The prosthesis is positioned in the mouth first, then the screw is drilled and inserted through the prosthesis body directly into the bone, eliminating the need for separate installation steps and the waiting period between them.
Solution Approach 2:
The prosthesis is pre-positioned in the mouth before the screw installation. The guide hole is pre-formed in the prosthesis body to guide the drill bit, and the prosthesis is temporarily secured to adjacent teeth before the screw is inserted through it, allowing the screw to be set while the prosthesis is already in its final position.
2Device complexity
If unguided drilling is used, then the procedure is simpler, but the drilled hole becomes misaligned, widened, or non-straight
Solution Approach 1:
The guide hole acts as an intermediary element between the drill bit and the bone. It is formed in the prosthesis body at a precise angle and depth, guiding the drill bit to create a straight, properly oriented hole in the bone that aligns with the prosthesis mounting requirements.
Solution Approach 2:
The guide hole is pre-formed in the prosthesis body before installation, with precise angular orientation and depth. This preliminary guidance structure ensures that when the drill bit is inserted, it automatically follows the correct path into the bone, eliminating the need for complex real-time guidance during drilling.
3Ease of manufacture
If adhesive cement is used to attach the prosthesis to the screw, then the connection is simple, but it causes complications and requires additional time
Solution Approach 1:
The patent removes adhesive cement from the installation process entirely. Instead of using cement to bond the prosthesis to the screw, the design relies on the mechanical interference fit between the screw and the prosthesis body, eliminating the need for adhesive application, mixing, and curing time.
Solution Approach 2:
The prosthesis and screw are designed to be self-securing through their geometric interfaces. The screw fits directly into the prosthesis body through the guide hole, creating a mechanical connection that requires no additional adhesive materials or chemical bonding processes.
Data Source
AI summary
A dental prosthesis having a guide hole formed therein. The guide hole is configured to guide placement of a dental implant, and configured to receive the implant, holding the prosthesis in place when screwed into the bone of a patient. This may allow for the simultaneous placement of both dental implant and dental prosthesis, rather than the current state of the art which requires a long waiting period between implant placement and prosthesis placement.