A remarkable veterinary achievement has unfolded at Chester Zoo, where a sloth named Rico has undergone pioneering dental surgery to alleviate a severe toothache. This milestone event not only marks the first such operation for a sloth but also showcases the collaboration between the zoo's dedicated team and dental specialists from Newcastle University.

Rico, a 25-year-old two-toed sloth, attracted the attention of his keepers when they observed unusual swellings on the sides of his face. Concern prompted further investigation, which revealed the presence of two root abscesses, necessitating urgent surgical intervention. Fiona Beddis, a dentist involved in the operation, emphasized the experimental nature of the procedure, stating it was a step into the unknown for the dental team, who had never before performed surgery on a sloth.

The surgery, which took place at Chester Zoo's animal care centre, lasted three hours and involved the meticulous removal of infected tissue surrounding Rico's teeth. In a notable deviation from standard root canal procedures typically performed on humans, the veterinary professionals opted to access the affected root through the base of the tooth. This innovative approach was designed to minimize trauma to the surrounding area, showcasing the teams commitment to animal welfare.

Dave Edwards, from Newcastle University's School of Dental Sciences, described the surgery as a complex undertaking due to the unique anatomical features of sloths. Working on a sloth is very challenging, but the experience was incredibly rewarding, he said, highlighting the significance of the case.

Charlotte Bentley, the resident zoo veterinarian, elaborated on the challenges posed by sloth dentistry, noting that sloths possess highly specialized and sharp molars that differ significantly from human teeth. While not all affected teeth could be preserved, Bentley shared encouraging news: Since the procedure, the abscesses have not returned, and his latest X-ray confirms that the filling remains intact. Its safe to say the treatment has effectively addressed his toothache.

In the days following the surgery, Rico has been under close observation to monitor his recovery. His keeper, Brittany Williams, expressed her affection for Ricos slow-paced nature, acknowledging that conducting health checks requires patience as he takes his time. I don't mind working at sloth speed, she remarked, underlining the bond between the animal and its caretaker.

Rico shares his living space with Tina, a female two-toed sloth, in the zoos jaguar house. Two-toed sloths, native to South America, face various threats in the wild, including habitat destruction, illegal logging, and hunting for the illegal wildlife trade. Chester Zoo is actively engaged in a European conservation breeding program aimed at safeguarding this species for future generations.