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Study reveals new insights into dog tooth fractures
The most common fracture among all samples in the study was a crown fracture.
Research follows increased concern over chew toys

A new study has investigated the external forces required to fracture a dog’s teeth while chewing.

Published in Frontiers In Veterinary Science, the study comes amid growing concern about the role of chewing on treats and toys in the fracture of large cheek teeth.

Researchers took 24 maximally pre-molar teeth, extracted from dog cadavers, and potted them in cylinders filled with acrylic. The cylinders were placed angles of 60 degrees before the team carried out an axial compression test.

They found that the highest force prior to a tooth fracturing was 1,281 N at an angle of 59.7 degrees. The most common fracture among all samples in the study was a crown fracture, followed by an uncomplicated crown fracture, complicated crown-root fracture and and uncomplicated crown-root fracture, respectively.

The researchers found no significant associations between dog breed, age, weight, impact angle, crown height or diameter, and the maximum force applied to the fracture. Crown height to diameter ratio was the only variable that remained significantly associated with maximum force, suggesting that a decreased ratio can improve resistance to tooth fracture.

‘The mean maximum force sustained by the tested teeth prior to fracture was within the maximum chewing capability of the average dog,’ the researchers conclude. ‘Dogs routinely exposed to hard treats and toys that do not yield significantly below this point might be at increased risk of fracture of maxillary fourth premolar teeth as a result of overexertion during chewing.’

The study was conducted by the University of Pennsylvania in collaboration with Mars Petcare and North Carolina State University College of Veterinary Medicine. 

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RCVS Knowledge appoints Veterinary Evidence editor-in-chief

News Story 1
 RCVS Knowledge has welcomed Professor Peter Cockcroft as editor-in-chief for Veterinary Evidence.

A world-renowned expert in evidence-based veterinary medicine, Prof Cockcroft will lead the strategic development and editorial quality of the open-access journal. He was previously in the role from 2017-2020.

Katie Mantell, CEO of RCVS Knowledge, said: "We are excited about the extensive knowledge of evidence-based veterinary medicine and clinical veterinary research that Peter brings, and we look forward to working with him over this next phase of the journal's development." 

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News Shorts
CVS Group hit by cyber attack

CVS Group, which owns more than 450 veterinary practices in the UK, has been hit by a cyber attack.

In a statement, the group said the incident involved unauthorised external access to a limited number of its IT systems. As soon as the attack was discovered, the group took its IT systems temporarily offline, causing 'considerable operational disruption'.

It has warned that the security steps taken and ongoing plans to move its operational systems and IT infrastructure to the Cloud are likely to have an ongoing impact over a number of weeks.

Due to the risk that personal information was accessed, CVS has informed the Information Commissioner's Office. The company is working with third party consultants to investigate the incident.