Light irradiation device for dental implants

A washing treatment device for screw type dental implants in which each of the implants has a screw part formed of a spiral protrusion, comprising:

• a casing;
• a treatment room provided in the casing, in which oxygen in the atmosphere gas is enclosed;
• a stage;
• which is provided in the treatment room and which is arranged and held so that two or more dental implants are aligned in one direction;
• and
• an ultraviolet ray irradiation lamp arranged in the treatment room,
• wherein the ultraviolet ray irradiation lamp is aligned alongside the spiral protrusion, which forms the screw part of each of the dental implants held on the stage, and
• wherein an entire surface of the protrusion, including an upper face and lower face of each protrusion, and the oxygen in the atmosphere gas in the treatment room are irradiated with the ultraviolet rays emitted from the ultraviolet ray irradiation lamp, so that ozone is generated in the treatment room so as to be in contact with the screw parts of the implants and organic matters adhering to the screw parts of the implants are decomposed and removed therefrom.