Authors
Takahiro Nozaki, Seiji Asoda, Soya Shimizu, Ryo Kondo, Koji Niwa, Masaki Yazawa, Kazuo Kishi, Hiromasa Kawana
Published in
International journal of implant dentistry. Volume 11. Issue 1. Pages 65. Oct 21, 2025. Epub Oct 21, 2025.
Abstract
This study aims to develop and evaluate a dental implant drill system capable of preventing maxillary sinus membrane perforation, a common complication in cases with limited alveolar bone height, particularly in the maxillary molar region. The primary objective is to design a mechanism that autonomously detects changes in bone quality and halts drill rotation upon reaching the sinus floor.
A novel dental implant drill incorporating an integrated bone quality detection mechanism was developed. The system includes a centrally mounted detector that actuates a switch controlling drill rotation. When cortical bone is penetrated and softer tissue is encountered, the detector extends outward, interrupting power to the motor. A penetration test was conducted using a 5 mm thick wooden board as a surrogate bone model to evaluate the drill's response to cortical penetration.
Experimental trials demonstrated that the drill automatically ceased rotation upon advancing approximately 0.47 mm beyond a simulated bone surface. Given that the maxillary sinus membrane is typically less than 1 mm in thickness, this minimal protrusion indicates a significantly reduced risk of perforation.
The proposed drill system effectively detects transitions in bone quality and prevents over-penetration, offering a promising solution for enhancing surgical safety during maxillary implant procedures.
PMID:
41118019
Bibliographic data and abstract were imported from PubMed on 21 Oct 2025.
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