Dental Implant Drill With Directional Cutting And Stopper
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Solution Overview
Problem
Current dental implant drills face challenges in minimizing alveolar bone removal during forward rotation and safely performing sinus lift without damaging the sinus membrane during inverse rotation, particularly in cases where the maxillary sinus is involved.
Innovation Solution
A drill design with cylindrical rotating portions featuring spiral grooves and inclined cutting side surfaces that adjust their cutting action based on rotation direction, combined with a stopper mechanism to adjust drill length, allowing for precise bone manipulation and sinus lift without excessive bone removal or membrane damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional drill blade is used for maxillary perforation, then the procedure can be completed quickly and easily, but the sinus membrane may be torn or curled up by the drill blade tip
Solution Approach 1:
The drill blade is divided into distinct functional sections: a cutting portion for bone removal and a separate lifting portion for sinus membrane elevation. This segmentation allows each portion to perform its specific function without interfering with the other, preventing membrane damage while maintaining drilling efficiency
Solution Approach 2:
The drill blade design includes an intermediary lifting portion that acts as a mediator between the cutting portion and the sinus membrane. This lifting portion gently elevates the membrane without direct contact from the cutting edge, preventing tearing while enabling safe perforation
2Productivity
If forward rotation is used to remove alveolar bone, then bone removal is effective, but excessive bone removal occurs
Solution Approach 1:
The drill blade features localized cutting edges positioned at specific locations on the rotating portions. These cutting edges are strategically placed to remove only the necessary amount of alveolar bone while preserving surrounding healthy bone structure, achieving effective bone removal without excessive loss
Solution Approach 2:
The drill design uses partial rotation action where only specific portions of the blade engage with the bone at any given time. This controlled partial action allows precise bone removal in the implant site area while avoiding unnecessary removal of adjacent bone structures
3Ease of operation
If inverse rotation is used for sinus lift, then sinus lift can be performed, but the sinus membrane may be damaged
Solution Approach 1:
The drill blade separates the sinus lift function into a dedicated lifting portion that operates independently from the cutting portion. During inverse rotation, only the lifting portion contacts the sinus membrane, providing gentle elevation without the harmful cutting action, thus preventing membrane damage while enabling effective sinus lift
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
The drill effectively minimizes alveolar bone removal during implant procedures and facilitates sinus lift with reduced risk of sinus membrane damage, enhancing procedural safety and efficiency by adapting cutting actions to rotation direction and allowing for adjustable length.
Implementation Method 1
a first cutting side surface portion connected to the first spiral groove portion and formed to have a slope inclined upward from the cutting head portion in the shape of a predetermined plate protruding from the central axis
Implementation Method 2
cylindrical first and second rotating portions rotatable in both directions about a central axis
Data Source
AI summary
A drill for dental implant procedure is provided. The drill for dental implant procedure may include a body portion extending in a longitudinal direction and including cylindrical first and second rotating portions rotatable in both directions about a central axis, wherein the first rotating portion comprising: a cutting head portion, a first spiral groove portion, and a first cutting side, wherein the second rotating portion formed integrally with the first rotating portion comprising: a second spiral groove portion, and a second cutting side surface portion.