Dental Vibrator Tip for Bubble-Free Composite Resin Bonding
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Solution Overview
Problem
Existing methods for attaching composite resin to teeth often result in bubbles and spaces due to residue on tools, leading to unstable bonding and potential pain for patients, as the composite resin can separate from the tooth if not properly removed.
Innovation Solution
A vibrator device with a housing, vibration motor, micro-computer, and vibration tip that transfers controlled vibrations to remove bubbles and spaces between layers of composite resin, featuring a control switch for varying vibration frequency and a vibration bushing to adjust mass for optimal vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If composite resin is applied using a metal tool, then the composite resin can be attached to the tooth, but bubbles and spaces are formed between layers leading to unstable bonding
Solution Approach 1:
The patent applies ultrasonic vibration to the composite resin during application to eliminate bubbles and spaces between layers. The vibration device generates mechanical oscillations that disrupt trapped air pockets and allow the resin to flow into all spaces, ensuring complete contact between layers and eliminating voids that would compromise bonding stability.
Solution Approach 2:
The patent introduces a vibration tip as an intermediary between the metal tool and composite resin. This intermediary transfers ultrasonic vibrations directly to the resin material during application, enabling bubble removal without compromising the functionality of the original metal tool for resin delivery.
2Manufacturing precision
If composite resin is applied in multiple layers to fill tubules, then complete coverage is achieved, but bubbles accumulate between layers
Solution Approach 1:
The ultrasonic vibration device is applied during each layer application process to actively remove bubbles as they form. The mechanical oscillations penetrate through the resin layers, disrupting bubble formation at the interface between layers and preventing bubble accumulation that would occur with conventional multi-layer application methods.
Solution Approach 2:
The vibration is applied continuously throughout the multi-layer application process rather than as a separate step. This continuous vibration action ensures that bubbles are removed from each layer as it is deposited, maintaining complete tubule filling while preventing bubble accumulation between layers.
3Productivity
If the tool is detached from the tooth after application, then the application process is completed, but composite resin adheres to the tool creating spaces
Solution Approach 1:
Ultrasonic vibration is applied during the detachment phase to prevent resin adhesion to the tool. The mechanical oscillations reduce the bonding strength between the resin and tool surface, allowing the tool to be removed cleanly without leaving residue that would create spaces or bubbles in the applied resin.
Solution Approach 2:
The vibration-assisted detachment process allows for rapid tool removal without the need for slow, careful extraction. The vibration actively prevents adhesion during the brief moment of detachment, enabling quick tool removal while preventing resin residue formation.
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
Effectively removes bubbles and spaces in composite resin, enhancing the bonding process by ensuring a stable interface between the resin and tooth, reducing the risk of pain and separation.
Implementation Method 1
a vibration motor accommodated in the housing and configured to generate vibration; a vibration tip configured to couple with one side of the housing to be exposed to an outside of the housing, and to transfer the vibration to the composite resin
Data Source
AI summary
A vibrator for attaching composite resin to a tooth includes a housing, a vibration motor accommodated in the housing and configured to generate vibration, a micro-computer configured to control an operation and a vibration frequency of the vibration motor, a vibration tip configured to couple with one side of the housing to be exposed to an outside of the housing and to transfer the vibration to the composite resin, a vibration bushing provided at one end of the vibration tip and accommodated in the housing, and a control switch provided on one side of the housing and configured to generate a vibration motor control signal in response to a user contacting or pushing the control switch.