Removal of dental caries with high speed water jet

Details Removal of dental caries with high speed water jet Removal of dental caries with high speed water jet

1999-03-17

2000-12-26

Lucchesi, Nicholas D.

Dentistry

Apparatus

Having intra-oral dispensing means

433216, A61G 1702

Patent

active

06164966&

ABSTRACT:
A method and device for the high speed fluid (preferably water) jet removal of dental caries. The water jet is of a controlled upper and lower speed and pressure with a low speed and pressure being of at least 5 to 10 kpsi, sufficient to pierce and flush decayed tissue of a caries with a small beam fluid jet diameter. A pulsed or continuous fluid jet is used to remove and completely flush caries material from a tooth in a time period of under a second with a maximum stagnation pressure of about 30 kpsi, at which point healthy dentin is affected. A coherent or pseudo-coherent water jet operating at high stagnation pressure (range 10,000 to 20,000-psi and no more than 30-kpsi), in a brief burst (.apprxeq.1 second) and small beam diameter (30 to 100-.mu.m) will cleanly remove caries without damage to the tooth structure in particular the sound dentin at the boundary of the caries. No anaesthetic is accordingly required in the absence of a possible exposed nerve.

REFERENCES:
patent: 3863628 (1975-02-01), Vit
patent: 4012842 (1977-03-01), Vit

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