Polymerizable Silicone Coating for Orthodontic Brackets
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Solution Overview
Problem
Orthodontic brackets and wires often irritate the soft tissues in the mouth, causing discomfort, and existing solutions like soft wax provide temporary relief but are easily displaced, requiring frequent reapplication.
Innovation Solution
A two-part polymerizable composition, such as a silicone-based putty, is applied to the orthodontic devices, which polymerizes in place to form a soft, flexible coating that adheres to the devices, reducing irritation and lasting longer than traditional wax coatings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If soft wax is used to coat orthodontic brackets and wires, then discomfort to soft tissues is reduced, but the coating is easily displaced and requires frequent reapplication
Solution Approach 1:
The patent changes the physical and chemical parameters of the coating material from soft wax to a polymerizable composition (such as silicone-based putty). This composition has different rheological properties - it remains moldable during application but then polymerizes to form a durable coating that resists displacement while maintaining tissue comfort
Solution Approach 2:
The patent utilizes phase transition through polymerization. The coating composition transitions from a moldable, uncured state during application to a polymerized, durable state after application. This phase change enables the coating to initially conform to the orthodontic device surfaces and then lock in place, providing long-lasting protection without frequent reapplication
2Object-affected harmful factors
If a coating material is applied to orthodontic devices, then tissue irritation is reduced, but the material must remain in place for extended periods without displacement
Solution Approach 1:
The patent employs a composite material system consisting of a polymerizable composition (such as silicone putty) that combines the benefits of initial moldability for easy application with subsequent polymerization for durable adhesion. The composite structure allows the coating to conform to complex orthodontic device geometries while maintaining reliability and resistance to displacement throughout the treatment period
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 polymerizable coating significantly reduces discomfort by lasting several days, allowing tissues to adjust to the devices without frequent reapplication, and wears away naturally as the tissues callous, simplifying patient care.
Implementation Method 1
A two-part polymerizable composition, such as a silicone-based putty, is applied to the orthodontic devices, which polymerizes in place to form a soft, flexible coating that adheres to the devices
Data Source
AI summary
Methods and systems for temporarily coating intra-oral devices (e.g., orthodontic brackets and/or wires) so as to reduce discomfort to soft tissues within a patient's mouth. One embodiment of such a system includes at least one orthodontic bracket or orthodontic arch wire and a two-part polymerizable temporary coating composition for use in coating selected surfaces of the brackets and/or wires. One silicone polymerizable two-part composition includes a vinyl siloxane component, a cross-linking component, and a catalyst activator initially divided between the two parts so that at least one of the components is kept separate from at least one other component (i.e., all three components are not initially commingled). Upon mixing of the first and second parts, the composition begins to polymerize.