Dental Bur with Abrasive Cutting Section and Smooth Rounded Tip
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Solution Overview
Problem
Existing dental burs used for preparing bone surfaces for implant placement often cause excessive damage to soft tissue due to abrasive surfaces, and existing solutions either lack the necessary shape for effective bone flattening or provide inadequate protection for dental implant surgery.
Innovation Solution
A dental bur design featuring a proximal shank, an intermediate cutting section with a frustum-shaped portion and a curved transition to a smooth, rounded distal tip, which includes abrasive surfaces for bone removal while minimizing damage to soft tissue through a non-abrasive rounded tip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dental burs with abrasive surfaces are used to prepare bone surfaces, then bone flattening effectiveness is improved, but soft tissue damage increases
Solution Approach 1:
The bur features different surface qualities at different locations: the cutting section has an abrasive surface for effective bone removal, while the distal tip has a non-abrasive smooth surface to protect soft tissue. This local differentiation of surface properties allows the single tool to perform both bone preparation and soft tissue protection functions.
Solution Approach 2:
The bur is divided into distinct functional sections: a cutting section with abrasive surfaces for bone flattening and a separate smooth distal tip for soft tissue protection. This segmentation allows each section to be optimized for its specific function without compromising the other.
2Object-affected harmful factors
If a rounded smooth tip is added to protect soft tissue, then soft tissue damage is reduced, but bone flattening capability is lost
Solution Approach 1:
The bur maintains separate functional zones: the cutting section retains abrasive surfaces for bone flattening while the distal tip provides smooth rounded protection. This segmentation ensures that the protective tip does not compromise the bone preparation capability of the cutting section.
Solution Approach 2:
The bur is designed as a multi-functional tool that can perform both bone flattening and soft tissue protection in a single procedure, eliminating the need for multiple separate instruments and ensuring consistent performance across both functions.
3Device complexity
If existing burs designed for other dental procedures are used, then device complexity is reduced, but suitability for dental implant surgery is insufficient
Solution Approach 1:
The bur incorporates location-specific surface properties: abrasive surfaces at the cutting section for bone work and a smooth non-abrasive tip for soft tissue interaction. This local quality differentiation makes the bur specifically adapted for dental implant surgery requirements.
Solution Approach 2:
The bur combines multiple functions in a single tool design, making it universally suitable for dental implant surgery by integrating both bone preparation and soft tissue protection capabilities that were previously requiring separate instruments.
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
The bur effectively flattens bone surfaces for dental implant placement while reducing soft tissue damage, enabling efficient preparation of the jaw bone crest with minimal trauma.
Implementation Method 1
the outer surface of the frustum-shaped portion and the outer surface of the curved portion are both sufficiently abrasive to remove bone tissue
Data Source
AI summary
In one embodiment, a dental bur includes a proximal shank, an intermediate cutting section, and a smooth, rounded distal tip. The cutting section includes (i) a frustum-shaped portion connected at its larger-diameter end to the shank and (ii) a curved portion that provides a transition between the smaller-diameter end of the frustum-shaped portion and the rounded tip, where the outer surfaces of the frustum-shaped portion and the curved portion are both sufficiently abrasive to remove bone tissue due to the presence of surface grit and/or flutes that provide bone-cutting edges. The dental bur reduces and flattens the bone tissue of the maxillary and mandibular bones for surgical dental implants without unwanted soft tissue damage.