Orthodontic Guiding Cap and Screw for Precise Palatal Placement
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Solution Overview
Problem
Existing orthodontic treatments requiring mini screw-supported appliances often require multiple appointments due to reliance on clinician and technician skill, leading to potential misfitting appliances and increased time and resource wastage.
Innovation Solution
An orthodontic set comprising a guiding cap and compatible screw that ensures proper alignment and locking of the screw in the desired direction and depth within the palate bone in a single session, using a guide surface to prevent unwanted movement and ensure parallel alignment of multiple screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the classical two-appointment method is used for mini screw-supported orthodontic appliances, then the appliance can be prepared in the laboratory according to screw positions, but the appliance may not fit properly and multiple appointments are required
Solution Approach 1:
The guiding cap is placed on the mini screw immediately after insertion to pre-establish the correct angular orientation and depth. This preliminary action ensures that when the orthodontic appliance is fabricated and installed later, the screw is already positioned at the precise angle required for proper appliance fit, eliminating the need for multiple adjustment appointments
Solution Approach 2:
The guiding cap serves as an intermediary tool between the mini screw insertion and the final appliance installation. It provides a reference surface that translates the desired appliance orientation into the correct screw insertion angle, ensuring accurate positioning without requiring the clinician to manually calculate or estimate the correct angle
2Ease of operation
If mini screws are inserted without a guiding cap, then the insertion process is simpler, but the screw placement direction and depth may deviate from desired positions
Solution Approach 1:
The guiding cap acts as an intermediary device that simplifies the insertion process while simultaneously ensuring precision. The clinician simply inserts the screw through the guiding cap without complex calculations, and the cap's geometry automatically ensures the screw is placed at the correct angle and depth for the intended appliance orientation
Solution Approach 2:
The guiding cap is prepared in advance with pre-calculated angular orientations corresponding to specific appliance types. This preliminary preparation allows the clinician to select the appropriate cap for the desired outcome and achieve precise screw placement through a straightforward insertion process without requiring advanced skill or complex procedures
3Adaptability or versatility
If multiple screws are inserted without parallel alignment guidance, then each screw can be placed independently, but the appliance may not adapt properly to all screws
Solution Approach 1:
The guiding cap system is segmented into multiple caps, each designed with specific angular orientations for different screw positions. This segmentation allows each screw to be independently guided while maintaining overall parallel alignment, as each cap provides the specific orientation needed for its corresponding screw location in the appliance assembly
Solution Approach 2:
The guiding cap system provides universal guidance for multiple screws through a set of caps with different angular orientations. Each cap in the set serves a specific function for a particular screw position, but together they provide a universal solution for ensuring parallel alignment across all screws in the orthodontic appliance
Data Source
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AI summary
The subject of the invention is a set of guide cap and locking screw that contain guiding surfaces compatible with each other. With the help of the guide surface inside the cap, the direction of the screw in the palate bone is fixed during and after the operation, and in case more than one screw is used, they are ensured to be parallel to each other.