Manual Dental Implant Driver Reduces Bone Trauma
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Solution Overview
Problem
Motor-driven drilling in dental implantation procedures poses risks due to bone cracking, limited precision, and trauma, especially in thin bone areas, and compromises bone regeneration by dehydrating collected tissue with cooling water irrigation.
Innovation Solution
A manual driver for dental implant drills with a chuck and handle system that allows precise control and collection of bone tissue without irrigation, enabling better angulation and reduced trauma, and a method involving sequential drilling and bone tissue reuse for enhanced regeneration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If motor-driven drilling is used for fast and efficient dental implantation, then productivity is improved, but bone cracking and trauma increase due to vibrations and one-directional drilling
Solution Approach 1:
The patent applies reverse drilling (counter-clockwise rotation) instead of conventional clockwise drilling. This inversion of the drilling direction reduces pressure on surrounding bone tissue, minimizes bone cracking, and decreases trauma while maintaining drilling efficiency. The drill rotates in both clockwise and counter-clockwise directions, with counter-clockwise rotation being particularly beneficial for reducing bone damage.
Solution Approach 2:
The patent employs periodic alternating rotation of the drill in clockwise and counter-clockwise directions. This periodic action prevents continuous one-directional pressure on the bone, reduces vibration-induced cracking, and allows for more controlled bone removal while maintaining productivity.
2Productivity
If motor-driven drilling is used for high-speed drilling, then productivity is improved, but precision and control of drilling angulation deteriorate
Solution Approach 1:
The patent incorporates tactile feedback from the dentist during manual drilling, allowing real-time sensing of bone density and drill position. This feedback mechanism enables precise control of drilling angulation and depth, preventing drill penetration into critical structures such as the sinus or bone cortex while maintaining efficient drilling progress.
Solution Approach 2:
The patent uses a specialized drill handle that acts as an intermediary between the dentist's hand and the drill. This handle provides mechanical advantages and control features that enhance the dentist's ability to precisely control drilling angulation and depth, bridging the gap between manual operation and precise drilling requirements.
3Productivity
If motor-driven drilling is used for high-speed drilling, then productivity is improved, but bone tissue quality deteriorates due to heat generation and irrigation water dehydration
Solution Approach 1:
The patent eliminates the need for irrigation water cooling by removing the harmful cooling step entirely. Manual drilling generates minimal heat, so the patent extracts the cooling function from the process, thereby preventing bone tissue dehydration and maintaining bone tissue quality for regeneration without requiring water irrigation that would dehydrate the collected bone tissue.
Solution Approach 2:
The patent converts the potential harm of heat generation during drilling into a benefit by using manual drilling speed that naturally limits heat production. This approach transforms the drilling process into one that inherently protects bone tissue quality, allowing collected bone tissue to remain viable for regeneration without requiring complex cooling and dehydration prevention systems.
4Temperature
If irrigation is used for cooling during motor-driven drilling, then temperature control is improved, but bone tissue collection quality deteriorates due to washing and dehydration
Solution Approach 1:
The patent removes the irrigation cooling step entirely from the drilling process. Since manual drilling generates minimal heat, the harmful effect of irrigation water washing and dehydrating bone tissue is eliminated. This extraction of the cooling function preserves bone tissue concentration and quality without requiring water irrigation.
Data Source
AI summary
A manual driver for a dental implant drill or other dental implant tools and the method of use for preparing for dental implantation are provided. The manual driver includes a handle, an extension shank and a chuck having an axial channel configured to receive and interlock an implant drill, and a fastening screw transverse to the axial channel. The method of manual preparation for dental implantation using the manual driver has a high precision, and reduces the risk of bone cracking caused by vibration of motor-driven drilling. The manual drilling method provides better tactile sensation and drilling control to the dentist. Further, the method avoids drilling irrigation, allows collection of virgin bone tissue from the drills, and reintroduces the collected bone tissue in the receiving bore to promote bone regeneration after the implantation.