Orthodontic Anchorage Device with Bone Support Stems
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Solution Overview
Problem
Current skeletal anchorage devices in orthodontics require dental supports to prevent palatal mucosa injury and involve cumbersome steps with micro screws, replicas, and cover screws, leading to imprecise adjustments and repeated errors.
Innovation Solution
An orthodontic anchorage device with pointed end support stems that rest on the bone, eliminating the need for dental supports and reducing the complexity of placement by using a plate with micro screw holes, providing stabilization through antagonistic forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dental supports are used to prevent palatal mucosa injury, then the appliance is stabilized, but the device complexity increases and the placement process becomes more cumbersome
Solution Approach 1:
The invention extracts and eliminates the dental support element from the appliance system. Instead of using dental supports to prevent palatal mucosa injury, the patent uses a plate with integrated bone support stems that directly rest on the bone, removing the need for separate dental support components and simplifying the overall device structure.
Solution Approach 2:
The invention segments the support function into separate bone support stems that are integrated with the plate. These stems are distributed across the plate surface and independently rest on the bone, providing stabilization without requiring complex dental support structures. This segmentation allows for simpler placement and reduced device complexity.
2Reliability
If multiple previous steps with micro screws and cover screws are used, then the appliance is fixed, but the placement process becomes time-consuming and error-prone
Solution Approach 1:
The invention merges the micro screw fixation function with the bone support stem function into a single integrated plate structure. The plate with bone support stems is placed as one unit, eliminating the need for separate steps of placing micro screws, taking impressions, creating replicas, and installing cover screws. This consolidation significantly reduces placement time while maintaining reliable fixation.
3Reliability
If dental supports are used to neutralize micro screw pressure, then the appliance is stabilized, but the risk of palatal mucosa injury increases
Solution Approach 1:
The invention introduces bone support stems as an intermediary element between the plate and the bone. These stems rest on the bone and distribute the micro screw pressure away from the palatal mucosa, acting as a mediator that prevents direct pressure on the mucosa while maintaining appliance stabilization. This eliminates the harmful effect of mucosa injury while preserving the stabilizing function.
Data Source
AI summary
The invention proposes an orthodontic anchorage device, which may be used in combination with others, comprising a plate with two, three or four pointed end stems distributed on one of its surfaces and at least two holes at the ends adapted for the insertion of micro screws. These stems are intended to slightly rest on the bone through the palatine mucosa, preventing the entire appliance from digging into the palate.