Segmented Dental Implant Surgical Guide for Minimally Invasive Placement
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Solution Overview
Problem
Current dental implant surgical guides face challenges with invasiveness, stability, and accuracy due to bone borne and gum tissue borne methods, leading to increased surgical risks, complications, and difficulties in accurately positioning implants, especially in cases with low bone density or anatomical variations.
Innovation Solution
A surgical guide apparatus that minimally invasively fits both gum tissue and jawbone, using a digital anatomical model for design and rapid prototyping, with a base frame and attachable/detachable superstructures to accurately position dental implants, allowing for digital or physical indexing of implant positions without altering the preoperative information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If bone borne surgical guides are used to fit on patient's jawbone, then manufacturing precision and stability are improved, but surgical invasiveness increases requiring gum tissue flapping and suturing
Solution Approach 1:
The surgical guide is divided into two distinct components: a gum tissue contact portion that interfaces with the soft tissue, and a bone contact portion that interfaces with the jawbone. This segmentation allows the guide to utilize both gum tissue for initial positioning and bone for stable fixation, reducing the need for extensive gum flapping while maintaining manufacturing precision through the bone-borne component.
Solution Approach 2:
The gum tissue contact portion serves as an intermediary element between the surgeon and the jawbone. By providing a stable interface with the gum tissue, it facilitates the accurate positioning and stabilization of the bone contact portion, thereby achieving precise guide fit without requiring extensive invasive procedures to expose the bone surface.
2Object-affected harmful factors
If gum tissue borne surgical guides are used to fit on gum tissue, then surgical invasiveness is reduced, but stability and accuracy deteriorate due to tissue movement and pliability
Solution Approach 1:
The surgical guide is divided into two distinct components: a gum tissue contact portion that interfaces with the soft tissue, and a bone contact portion that interfaces with the jawbone. This segmentation allows the guide to utilize both gum tissue for initial positioning and bone for stable fixation, reducing the need for extensive gum flapping while maintaining manufacturing precision through the bone-borne component.
Solution Approach 2:
The surgical guide combines two different support mechanisms: gum tissue bearing and bone bearing. By merging these two approaches into a single integrated device, the guide achieves both the reduced invasiveness of gum tissue borne guides and the stability of bone borne guides, as the bone contact portion provides rigid stabilization while the gum tissue contact portion facilitates easy placement.
3Stability of the object's composition
If extensive gum tissue flapping is performed to fit bone borne guides, then guide stability is improved, but surgical time and complications increase
Solution Approach 1:
The surgical guide is divided into two distinct components: a gum tissue contact portion that interfaces with the soft tissue, and a bone contact portion that interfaces with the jawbone. This segmentation allows the guide to utilize both gum tissue for initial positioning and bone for stable fixation, reducing the need for extensive gum flapping while maintaining manufacturing precision through the bone-borne component.
Solution Approach 2:
The guide is designed to be placed on the gum tissue first, allowing for preliminary positioning and alignment before engaging with the bone. This preliminary action through the gum tissue contact portion facilitates easier placement and reduces the need for extensive preparatory flapping procedures, thereby reducing surgical time while maintaining stability through subsequent bone engagement.
4Stability of the object's composition
If gum tissue flapping is performed to fit bone borne guides, then guide stability is improved, but surgical risks and complications increase
Solution Approach 1:
The surgical guide is divided into two distinct components: a gum tissue contact portion that interfaces with the soft tissue, and a bone contact portion that interfaces with the jawbone. This segmentation allows the guide to utilize both gum tissue for initial positioning and bone for stable fixation, reducing the need for extensive gum flapping while maintaining manufacturing precision through the bone-borne component.
Solution Approach 2:
The design accepts the natural pliability and movement of gum tissue not as a problem to be overcome through invasive flapping, but as a feature to be utilized. The gum tissue contact portion is designed to work with the natural properties of gum tissue, converting what would normally be a source of instability into a facilitator of easy, minimally invasive placement, while the bone contact portion provides the necessary stability.
Data Source
AI summary
A method may include receiving and digitally storing a preoperative data set including scan coordinates of at least one of a tomography and a topography of an oral structure of a patient, a dental impression of the oral structure, a dental cast of the oral structure, a prosthesis of the patient, and/or a prosthesis as applied to the oral structure. The method may also include digitally designing a digital preoperative dental model based on the preoperative data set and saving coordinates of the digital preoperative dental model in a CAD/CAM compatible file format. The method may further include digitally designing a dental appliance set based on the digital preoperative dental model, storing coordinates of the dental appliance set design, which are oriented to the digital preoperative dental model, in a CAM compatible file format, and manufacturing at least a part of the dental appliance set using a CAM method.