A Pink Canine’s Tooth Internal Bleaching in an Akita Inu Dog using A 940nm Diode Laser

Intra-vitam pink canine teeth are rarely reported in the literature. They may be due to a local circulatory disorder associated with a traumatic injury. This case report describes the bleaching of a canine tooth in a dog using a 940nm diode laser. A two-year-old Akita Inu intact male dog was presented with an uncomplicated crown fracture at the 304, involving a quarter of the incisal part of the crown. The tooth had an intensely pink incisal half of the crown. The tooth was treated endodontically, and the root was sealed with mineral trioxide aggregate and gutta-percha. The crown was bleached with a 940 nm diode laser and filled with light-curing material. Dental X-rays revealed no periapical involvement. At the opening of the crown, an intense, reddish bleeding was expressed. Endodontic treatment was performed in accordance with established endodontic standards. The tooth had a light-yellow discoloration at the end of the dental treatment, which gave it a natural appearance. This case report confirms that pink staining is directly related to intrapulpal haemorrhage and pigments resulting from haemoglobin. The tooth whitening method, using a diode laser, has been proven effective in dogs.