Intraoral phototherapy device for simultaneously irradiating inner and outer gingiva

An intraoral phototherapy device for simultaneously irradiating inner and outer gingiva, comprising:

• a transparent shell, comprising a bite portion and a stop portion;
• wherein the stop portion comprises an inner arc surface and an outer arc surface opposite to the inner arc surface;
• wherein the bite portion is mounted on the inner arc surface of the stop portion;
• wherein the bite portion comprises a first surface and a second surface opposite to the first surface;
• a circuit board, mounted in the bite portion of the transparent shell, and comprising a first light emitting surface;
• wherein the first light emitting surface faces to the first surface of the bite portion;
• wherein the first light emitting surface comprises a first inner arc area and a first outer arc area;
• wherein the circuit board further comprises:
• multiple first light emitting units, mounted on the first light emitting surface, and separately distributed in the first inner arc area and the first outer arc area;
• wherein the first inner arc area corresponds to the inner arc surface of the stop portion, and the first outer arc area corresponds to the outer arc surface of the stop portion.