Micropin Bone Anchor for Independent Impacted Tooth Correction
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Solution Overview
Problem
Conventional methods for correcting impacted teeth require synchronizing the alignment of the entire dental arch with the impacted tooth, leading to prolonged treatment times, as anchorage is typically provided by the main archwire or transpalatal arch, making it difficult to maneuver and position the tooth efficiently.
Innovation Solution
The use of a micropin anchored to the patient's bone, a rotatable bracket, and a spring-biased wire system that allows independent correction of the impacted tooth, utilizing a Class III lever system to deliver controlled force and torque, enabling the tooth to be moved independently of the arch alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional methods use the main archwire or transpalatal arch as anchor unit, then anchorage is provided for impacted tooth movement, but treatment time is prolonged due to required synchronization with arch alignment
Solution Approach 1:
The treatment system is segmented into independent components: the micropin anchored in bone provides anchorage independent of the dental arch, allowing impacted tooth correction to proceed separately from arch alignment procedures. This segmentation eliminates the need to wait for arch leveling and alignment before beginning impacted tooth movement.
Solution Approach 2:
The micropin serves as an intermediary anchorage point inserted into the bone, replacing the conventional reliance on the dental arch as anchor. This intermediary structure enables direct force application to the impacted tooth without requiring the arch to be fully aligned first, thereby reducing treatment time.
2Productivity
If conventional methods require arch alignment before impacted tooth correction, then anchorage stability is maintained, but productivity is reduced due to sequential treatment requirements
Solution Approach 1:
The anchorage function is extracted from the dental arch system and transferred to a separate micropin anchored in the bone. This extraction allows the impacted tooth correction to proceed independently of arch alignment, enabling parallel treatment of multiple dental issues and significantly improving overall treatment productivity.
3Ease of operation
If conventional methods use gold chain attachment with bracket bonding, then anchorage is established for impacted tooth, but maneuvering the tooth into oral cavity becomes difficult
Solution Approach 1:
The micropin acts as an intermediary anchorage point that simplifies the force application system. By anchoring directly in bone rather than relying on bracket-gold chain attachments to the arch, the system provides more direct and controllable force vectors, making it easier to maneuver deeply impacted teeth into the oral cavity.
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
This approach significantly reduces treatment time by allowing the impacted tooth to be corrected independently of the rest of the arch, accelerating tooth movement and minimizing root resorption risk with controlled force delivery, typically achieving tooth exposure within 4-12 weeks.
Implementation Method 1
a spring-biased quadrilateral wire inserted at one end through the quadrilateral aperture and secured at the other end to the apertured rigid ribbon
Implementation Method 2
utilizing a Class III lever system to deliver controlled force and torque
Implementation Method 3
a threaded micropin secured to the patient's bone
Data Source
AI summary
An impacted tooth appliance including a micropin bone anchor with a quadrilateral aperture formed therein, a rigid apertured ribbon secured to the impacted tooth by means of a rotatable bracket secured to the tooth, the ribbon pivoted on the bracket, and the ribbon and the micropin interconnected by means of spring-biased quadrilateral wire.