Tooth Moving Device Distalizing Maxillary Posterior Teeth
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Solution Overview
Problem
Conventional tooth moving devices for distalizing maxillary posterior teeth cause discomfort due to a connecting part on the mesial side, which interferes with tongue movement and can lead to mesial rotation of the tooth, as the device's design restricts proper tongue training and effective force adjustment.
Innovation Solution
A tooth moving device with a track part extending from the mesial end to the distal end, featuring a sliding part, lock part, and elastic part, where the anchoring part is connected to the distal end of the track part, eliminating the connecting part on the mesial side and allowing for a larger, more stable design that reduces tongue discomfort and prevents mesial rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a connecting part is provided on the mesial side of the coupling part, then the device structure is complete and functional, but the tongue tip touches the connecting part causing discomfort and interfering with tongue training
Solution Approach 1:
The patent removes the connecting part from the mesial side of the coupling part, extracting the problematic element that caused tongue discomfort. The distal end of the track part is directly connected to the coupling part, eliminating the intermediate connecting part that interfered with tongue movement and training.
2Area of stationary object
If the connecting part is small due to limited palate space, then the device fits in the oral cavity, but the bent portion has increased curvature causing springback that moves the track part buccally
Solution Approach 1:
By removing the connecting part entirely and directly connecting the distal end of the track part to the coupling part, the patent eliminates the bent portion that caused springback. This extraction of the problematic connecting part resolves the stability issue without requiring additional space.
3Force
If the coiled spring acts on the maxillary molar through the sliding part, then distalization force is applied, but the buccally acting force causes mesial rotation of the tooth
Solution Approach 1:
The patent removes the connecting part that created the buccalward angle of the track part. By directly connecting the distal end of the track part to the coupling part, the track part aligns with the long axis of the maxillary molar, ensuring the coiled spring force acts purely in the distal direction without causing mesial rotation.
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 device reduces tongue discomfort, enables successful tongue training, and achieves desired distalization of the maxillary posterior tooth while preventing mesial rotation by ensuring proper force application and alignment.
Implementation Method 1
an elastic part intervening between the lock part and the sliding part to bias the sliding part toward the distal end
Implementation Method 2
a coiled spring (elastic part) 209 inserted into a track part 206 and intervening between a lock part 208 and a sliding part 207 to bias a sliding part 207 toward a distal end 205
Data Source
AI summary
A tooth moving device 1 according to the present invention comprises: a track part 6 extending from a mesial end 4 to a distal end 5 along a palate-side teeth alignment; a sliding part 7, slidably attached to the track part 6, and engaging with a holding member 51 attached to a maxillary posterior tooth; a lock part 8 fixed to the track part 6 close to the mesial end 4 relative to the sliding part 7; an elastic part 9 intervening between the lock part 8 and the sliding part 7 to bias the sliding part 7 toward the distal end; and anchoring part 2 and 3, anchored to an implanted member 53 implanted into a palate, and connected to the distal end 5.