Orthodontic Bracket Positioning via Self-Referential Body Base
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Solution Overview
Problem
Existing orthodontic brackets face challenges in accurately positioning the base point on the mid-transverse plane of teeth, leading to insufficient orthodontic treatment due to the distance between the base point and the tooth surface, making it difficult to apply the correct load through the archwire.
Innovation Solution
The orthodontic bracket features a non-parallel relationship between the body base and archwire slot base, with markers such as slits, protrusions, or notches on the outline generated by crossing planes, allowing for easier alignment of the base point with the mid-transverse plane and the center line with the facial axis, facilitated by insert or through holes for needle-like jigs to coincide the FA point and target positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a gage partially fixed to an archwire slot is used to measure distance for positioning, then measurement capability is provided, but ease of operation deteriorates because manners of abutting the gage must be changed according to tooth position
Solution Approach 1:
The bracket body base itself serves as the measurement reference by being positioned parallel to the occlusal plane, eliminating the need for external gages and their complex manipulation. The bracket structure provides its own positioning reference through the parallel relationship between the body base and occlusal plane, allowing direct visual alignment without additional measurement tools.
2Ease of manufacture
If standard lines are provided only on the center line of tiewings and slot line, then manufacturing is simplified, but ease of operation deteriorates because it is not easy to coincide the base point with the mid-transverse plane
Solution Approach 1:
The bracket body base serves as its own positioning reference by being configured parallel to the occlusal plane. This self-referential design eliminates the need for multiple external standard lines and complex alignment procedures, as the bracket structure itself provides the necessary geometric reference for positioning.
3Ease of manufacture
If the base point is positioned away from the tooth surface, then structural design is simplified, but measurement precision deteriorates because it is not easy to coincide the base point with the mid-transverse plane
Solution Approach 1:
The bracket body base is configured to be parallel to the occlusal plane, creating a self-referential positioning system. This allows the bracket to self-align during bonding without requiring complex external measurement tools or procedures, maintaining both structural simplicity and positioning accuracy.
Data Source
AI summary
Orthodontic brackets that can accurately be mounted to the surface of teeth to effectively perform orthodontic treatment. The orthodontic bracket according to the present invention is characterized in that, a marker is provided on at least a portion of an outline that is generated by crossing a plane including a longitudinally extending center line, on the archwire slot base of the archwire slot and vertical to the archwire slot base, and an outer surface of the bracket with each other. The marker can be selected from the group consisting of a protrusion, a projection, a slit, a notch and a paint. Another orthodontic bracket according to the present invention has an insert hole drilled from an outer surface of the bracket to a portion just before a base of the body along a line passing through a point that is generated by crossing a line, which is generated by crossing a plane including a longitudinally extending center line, on the archwire slot base of the archwire slot and vertical to the archwire slot base, and the body base, and a plane vertical to the center line of the archwire slot and dividing the body exactly into two parts. This bracket is especially preferably used for indirect method as well as direct method.