Bondable Orthodontic Bracket for Deep Overbite Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current orthodontic appliances are ineffective in addressing severe deep overbites due to muscle hyperactivity, which is primarily influenced by central nervous system (CNS) hyperactivity, leading to high relapse rates and challenges in treatment, particularly in Class II division 1 malocclusions with vertical mandibular overclosure.
Innovation Solution
The development of a second-generation overbite correction device (BT2) featuring a bracket body with a vertical split, curved bonding pads, and 80-gauge mesh for improved bond strength, combined with buccal rhomboid elastics and active self-ligating appliances, to increase the vertical dimension and reduce muscle hyperactivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional removable or cemented anterior bite planes are used, then overbite control is achieved, but the appliance is easily worn and swallowed, requiring resin additions and frequent adjustments
Solution Approach 1:
The patent employs a bondable metal bracket type bite plane that is designed to be permanently bonded to the tooth, eliminating the need for frequent adjustments and repairs. The bracket is engineered as a single-use, disposable component that provides reliable overbite control without the maintenance issues of removable appliances.
2Reliability
If bondable metal bracket type bite planes are used, then overbite control effectiveness is improved, but the appliance is difficult to remove due to solid form and rigid design
Solution Approach 1:
The metal bracket is designed with a segmented structure featuring multiple slots and openings that allow it to be divided into smaller sections during removal. This segmentation enables the bracket to be broken apart more easily, reducing the difficulty of removal while maintaining its solid, rigid form for effective overbite control during treatment.
Solution Approach 2:
The bracket incorporates dynamic features such as flexible wires and adjustable components that allow it to maintain rigidity during function but become more compliant during removal. The design enables the bracket to adapt its structural properties based on the operational phase, providing both effectiveness during treatment and ease of removal during debonding.
3Reliability
If resin bite ramps are placed at the molars, then overbite control is achieved, but molar intrusion occurs which is contraindicated
Solution Approach 1:
The bite plane is designed with different functional zones: the anterior portion provides overbite control through a rigid metal bracket structure, while the posterior portion uses a different material or design that prevents molar intrusion. This local differentiation allows the appliance to achieve overbite correction without causing harmful side effects on the molars.
4Stability of the object's composition
If the lower incisal edge crowds the cingulum of the upper incisor in vertical mandibular overclosure, then severe overbite condition is maintained, but tongue space is restricted resulting in proclination of lower incisors
Solution Approach 1:
The metal bracket bite plane acts as an intermediary device between the upper and lower incisors, preventing direct contact between the lower incisal edge and the upper cingulum. This intermediary structure maintains the malocclusion stability for treatment purposes while creating sufficient space for the tongue, preventing proclination of the lower incisors.
Data Source
AI summary
An overbite correction device for use on an upper incisor or canine tooth is provided. The device has a bracket body including two rounded lingual protrusions, and a vertical slot therebetween; and a base for bonding to the upper incisor or canine tooth at a lingual side thereof by means of a bonding pad. The two curved lingual protrusions feature a curved lower-facing surface for receiving an incisor, to prevent incisor interference during grinding. The device may feature an aperture for receiving an elastic thread or metal ligature to tie multiple overbite correction devices together. Advantageously, if one device breaks off from a tooth, it is not ingested.