Segmented Osteotomy Drill Bit for Anatomical Jawbone Opening
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Solution Overview
Problem
Current methods for preparing surgical sites for dental implants often result in openings that do not accurately conform to the shape of the implant or abutment, lacking a shallow zone for the future crown and abutment, which can affect the stability and integration of the implant.
Innovation Solution
A dental drill bit with a bullet-shaped first portion and a hemispherical frustum second portion, each equipped with flutes for cutting, designed to create an opening that closely matches the shape of a dental implant, including a shallow zone for the abutment and crown, enhancing the anatomical accuracy of the implant site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional dental drill bit is used to enlarge the pilot hole, then the opening can be widened sufficiently to receive the implant, but the opening does not accurately conform to the shape of the implant or abutment
Solution Approach 1:
The drill bit is divided into multiple distinct portions: a first portion with a bullet-shaped exterior contour for creating the implant receiving zone, a second portion with a hemispherical frustum contour for creating the abutment receiving zone, and a third cylindrical portion for shaft functionality. Each portion performs a specific shaping function, allowing the complex overall geometry to be achieved through segmented design elements that can be manufactured and assembled systematically.
Solution Approach 2:
Different portions of the drill bit have different exterior contours optimized for specific local requirements: the bullet-shaped first portion matches the implant geometry, the hemispherical frustum second portion matches the abutment geometry, and the cylindrical third portion provides structural functionality. This local differentiation of geometry ensures each region of the opening receives the appropriate shape treatment.
2Manufacturing precision
If successively larger diameter osteotomes are used for bone compaction, then the opening can be widened, but the process lacks a shallow zone for the future crown and abutment
Solution Approach 1:
The drill bit combines multiple shaping functions into a single integrated tool. The first portion creates the implant receiving zone with bullet-shaped contour, the second portion creates the abutment receiving zone with hemispherical frustum contour, and the third portion provides the shaft. This merging of functions into one device eliminates the need for multiple separate osteotomes and manual shaping steps.
Solution Approach 2:
The drill bit performs preliminary shaping actions during the drilling process itself. As the drill bit rotates and advances, the bullet-shaped first portion and hemispherical frustum second portion simultaneously create the anatomically correct zones for implant and abutment reception, preparing the opening in advance for component placement without requiring subsequent manual shaping.
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 drill bit forms an optimally shaped opening in the jawbone that securely accommodates the implant and abutment, improving osseointegration and stability by creating an anatomically correct receiving zone for the crown and abutment, addressing the limitations of conventional drill bits.
Implementation Method 1
The first and second portions may also each include flutes for cutting/drilling into bone
Data Source
AI summary
A dental drill bit is configured to drill a particularly shaped opening in a human jawbone. The dental drill bit includes first, second, and third portions. The first portion includes a bullet-shaped contour formed by revolving a curve about an axis creating an apex and a bottom, and is so shaped to correspond to a bullet-shaped portion of a dental implant. The second portion includes a hemisphere frustum formed coaxial with the axis of the bullet-shaped contour, and extends from the bottom of the bullet-shaped contour, and corresponds to a portion of an abutment that is supported by the implant. The first and second portions may also each include flutes for cutting/drilling into bone. The third portion includes a shaft that extends from a bottom of the hemisphere frustum and is formed co-axial with the axis of the bullet-shaped contour, and is configured to be secured within a dental drill.