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31 Jan 2018 | Australasian Dental Practice

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Saving animals' teeth with RCT from Dentsply Sirona Endodontics

Today, dental treatment provided to animals is also performed using the latest technologies. Saving the teeth of animals is essential for basic needs such as eating but also for self-defense and root canal treatments can prevent potentially life-threatening infections.


Dentsply Sirona Endodontics recently provided examples demonstrating how modern solutions can also be used to help some surprising patients in an easier, faster and safer way.

Endodontic therapy salvages teeth that have had their pulp irreversibly affected due to exposure to the oral cavity by fracture or caries of the tooth crown.

Such exposure typically results in pain initially. This also often then leads to difficulty in eating and, in animals as well as humans, temporary behavioral changes can result.

The exposure usually results in degeneration of the pulp, eventual abscessation and related lysis of bone at the tooth apex. Endodontics will not salvage a periodontally compromised tooth.

In recent years, to address this need, endodontics has morphed into a veritable high-tech discipline within dentistry. Here Dentsply Sirona Endodontics is breaking new ground and has been a long-standing supplier of cutting-edge instruments and materials to ensure successful root canal treatments in humans. These instruments and materials can also be used for treating animals.

Dolphin Dumisa at Hong Kong's Ocean Park

An eight-year-old female bottlenose dolphin called Dumisa, who had been suffering from general dental abrasion, underwent hours of root canal treatment. The unusual and complex procedure was carried out in Hong Kong by South African veterinary dentist Dr Cedric Tutt following months of preparation using props to acclimatise Dumisa to the procedure. State-of-the-art endodontic therapeutics were used to treat one damaged tooth by root canal treatment while up to 18 others are in different stages of treatment, all performed without anesthesia or restraint of any kind.

For the root canal procedure, preparation, compounding and filling of the canal, Dr Tutt used products from Dentsply Sirona Endodontics.

"Dumisa was suffering from general dental abrasion," Dr Tutt said. "In the past we would have had no other choice but to extract them all. However, we can now maintain Dumisa's teeth by performing root canal treatment using a specialised endodontic cement that helps heal the bone surrounding the root."

Hong Kong's Ocean Park was the stage of the world's first root canal treatment of this kind performed on a dolphin, which necessitated a whole day of patience from a team of dedicated veterinarians and animal trainers. Some of Dumisa's teeth were worn, exposing the pulp, which had subsequently died. Radiographs had also shown signs of inflammation, a great source of discomfort for her.

"The training and veterinary teams at Ocean Park in Hong Kong worked with Dumisa for months to get her used to the dental instruments, encouraged her to keep her mouth open and enhance her willingness to have her teeth 'x-rayed'," Dr Tutt said. "They used harmless props such as a model of a portable x-ray machine and electric toothbrushes, to help her appreciate that the operation was safe. This operation could never have happened without her cooperation."

Dumisa was left to swim freely in the pool and the treatment was successfully completed in stages as Dumisa allowed. A video of the entire treatment process was made and can be seen on YouTube at https://youtu.be/VfSDeZLU7E4

Lion and lioness, Abu Dhabi Wildlife Center, Al Wathaba

Two adult lions received an extensive dental procedure as a result of fractured canine teeth. Although tooth fractures are common in big cats, the treatment of these fractures is still relatively new. Dr Gerhard Steenkamp, a South African veterinary surgeon with 20 years of experience voluntarily performed the surgery. He has performed in excess of 300 dental procedures on carnivores including bears, cheetahs, hyenas and leopards and has executed over 100 root canal treatments and extractions on lions and tigers alone.

The endodontic treatments performed at the Abu Dhabi Wildlife Centre are similar to the procedures performed on humans with the same condition; the main difference being the size of the files. Dentsply Sirona Endodontics specifically developed a sequence of Hedstroems from ISO 030 to ISO 180. The files from 030 until 140 increased in increments of ten and then by twenty up to 180. The active part of the file was 60mm and the total length without the handle reached 150mm. By using Dentsply Sirona Endodontics files in the future, Dr Steenkamp will be able to reduce the amount of time the animals are under anesthesia, in turn lessening the profound effects of it on an animal's physiology.

For the male lion, the canal was filled with gutta-percha which was cemented in place and a simple restoration was completed. For the lioness, an RCT was performed on one canine, but on the other, the pulp tissue had deteriorated and a chronic abscess had developed. In this case, extraction was the only option. Both lions recovered rapidly from the procedures.

Camille DHalluin, Senior Product Manager at Dentsply Sirona Endodontics noted that, "Finding files of suitable sizes and active working lengths for dental procedures on larger animals is a difficult task. We are proud to lend our support. With the production of hundreds of custom-made endodontic files and the donation of an X-Smart iQ™ and ProTaper Gold™ files, we hope to enable Drs Steenkamp and Tutt to continue their good deeds worldwide."

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