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X-ray opaque waveguide for dentistry.
Tatjana Dostálová1, Helena Jelínková, Michal Nemec
1First Medical Faculty, Department of Stomatology, Charles University, GFH, Prague, Czech Republic. t.dostalova@quick.cz
Photomedicine and Laser Surgery
|August 19, 2004
Summary
A novel x-ray contrast hollow waveguide was developed for medical applications. This new system demonstrates comparable x-ray opacity to traditional instruments, enabling precise visualization during procedures.
Area of Science:
- Medical Engineering
- Biomedical Optics
- Radiology
Background:
- Growing use of laser therapies necessitates advanced radiation delivery systems.
- Internal surgical interventions require x-ray visibility for precise targeting.
- Existing delivery systems lack sufficient x-ray opacity for accurate localization.
Purpose of the Study:
- To design, fabricate, and evaluate a novel x-ray contrast hollow waveguide.
- To create a delivery system suitable for medical applications like dentistry and oncology.
- To enhance visualization during laser-based treatments requiring x-ray guidance.
Main Methods:
- A hollow glass waveguide coated with cyclic olefin polymer and silver was developed.
- The waveguide featured a 320 µm inner diameter, 630 µm outer diameter, and 100 mm length.
- X-ray visibility and opacity were measured; Er:YAG laser was used for endodontic treatment on 10 molars.
Main Results:
- The hollow waveguide was clearly visible within the tooth canal under x-ray.
- Its x-ray opacity was comparable to conventional metal instruments used in endodontics.
- Bone density analysis revealed no significant differences between waveguide and tooth canals.
Conclusions:
- The developed hollow waveguide exhibits sufficient x-ray opacity for medical applications.
- It provides precise localization capabilities, similar to traditional instruments.
- Digital 3D imaging aids in accurately determining the position of the waveguide during procedures.