Adjustable Screw Tip Device for Cortical Bone Perforation
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Solution Overview
Problem
Conventional orthodontic treatments using braces to move teeth are time-consuming, often taking 18-24 months and causing discomfort, necessitating a more efficient method to achieve tooth movement.
Innovation Solution
A device with a screw tip and adjustable sleeve that drills into the cortical bone to create micro-osteoperforations, allowing for controlled tooth movement by varying the length of the exposed screw tip, which can be used in conjunction with orthodontic braces to stimulate an inflammatory response and promote bone remodeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional braces are used to move teeth, then tooth movement can be achieved, but treatment time is extended (18-24 months or more)
Solution Approach 1:
The invention changes the physical parameters of bone interaction by creating controlled micro-fractures and perforations in the cortical bone using a specialized drill. This creates localized inflammatory responses that accelerate bone remodeling and tooth movement, reducing treatment time from 18-24 months to approximately 6-12 months.
Solution Approach 2:
The drilling device creates mechanical stimulation through controlled vibration and mechanical action on the bone, generating micro-fractures and perforations that trigger accelerated bone remodeling. This mechanical stimulation is applied locally at specific sites to enhance tooth movement without affecting the entire jaw.
2Productivity
If conventional drilling is used to create bone perforations, then tooth movement can be accelerated, but precision and control over penetration depth are insufficient
Solution Approach 1:
The device incorporates real-time feedback mechanisms including auditory cues (changes in drilling sound), tactile sensations (resistance changes), and visual indicators (exposed screw tip length) that provide continuous information about penetration depth. This feedback allows the operator to precisely control the drilling depth and stop when the screw tip is appropriately exposed.
Solution Approach 2:
The device features a dynamic, adjustable screw tip mechanism where the exposed length of the screw tip can be varied during the procedure. The sleeve can be adjusted to expose different lengths of the screw tip (e.g., 0-10 mm), allowing adaptation to different bone densities and patient requirements, thereby achieving both precision and productivity.
3Force
If the screw tip is fully exposed for drilling, then penetration capability is maximized, but the risk of over-penetration and damage to surrounding structures increases
Solution Approach 1:
The device provides beforehand cushioning through multiple protective mechanisms: the adjustable sleeve acts as a physical stop that prevents over-penetration by limiting the exposed screw tip length; auditory feedback signals changes in bone density and potential over-penetration risks; and the design allows the operator to stop drilling once the appropriate depth is reached, preventing damage to surrounding structures.
Solution Approach 2:
Real-time feedback through auditory cues (changes in drilling sound indicating approaching critical depth), tactile sensations (resistance changes), and visual indicators (exposed screw tip length) provides continuous monitoring during drilling. This feedback system allows the operator to adjust drilling force and depth dynamically to prevent over-penetration while maintaining sufficient penetration capability.
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 method significantly reduces treatment time by up to 50% compared to traditional braces, facilitating faster tooth movement and addressing malocclusions such as overcrowding, gaps, and bite issues while being safe and precise for different bone densities and types of teeth.
Implementation Method 1
The braces include wires and other tensioning devices, such as rubber bands and coils or removable trays, that exert a continuous force on the tooth to move the tooth to a desired location. The use of braces to cause tooth movement, however, takes on average 18-24 months and can take up to 3-4 years, often causing both social and physical discomfort.
Implementation Method 2
treatment of malocclusions in adults requires reliance on the dento-alveolar element, e.g. the ability of teeth to move when a sufficient inflammatory response is created in the jaw
Data Source
AI summary
A method of increasing movement of a tooth in a jaw having at least one tooth with an orthodontic brace thereon includes: (1) holding a handle of a device, the device having an elongate member extending from the handle and a screw tip at a distal end of the elongate member; (2) moving a sleeve along the elongate member to set a length of exposed screw tip; (3) locking the sleeve in place relative to the screw tip; (4) drilling a hole with the screw tip through a cortical bone of a jaw to increase movement of the tooth; and (5) stopping the drilling when the length of exposed screw tip has penetrated the jaw.