Three years ago, we wrote about how the $2.5 million diamond tooth implant had gone from being one of the most costly dental implants ever to being one that costs less than $50.
Since then, it has been one of only two implants that have been approved for use on dogs.
But it’s not clear if the $100,000 implant on a German shepherd is as good as the $50,000 that was originally priced at $200,000.
A study by scientists at the University of Pennsylvania and the University, Texas at Dallas looked at the implant’s performance on dogs and concluded that the new implant “does not significantly improve dog dental health,” according to a statement from the Penn team.
“In particular, no improvements were observed for the dogs with the implant in the mouth versus the dogs without the implant,” the statement said.
The scientists did not test the implant on humans.
In the study, they compared the dogs’ dental health with that of a control group of healthy dogs, the statement added.
The study also found that dogs with implants had “significant decreases in tooth enamel and total body mass index (BMI) compared with control dogs.”
The dogs’ teeth also showed “significantly lower rates of tooth loss and total loss of enamel than control dogs,” the study said.
But the Penn researchers did not report whether the implants had any positive or negative effects on the dogs.
A spokesman for the Pennsylvania-based company that manufactures the implant did not immediately respond to requests for comment.
In a statement, the University said it was working with Penn to conduct a larger study on the effectiveness of the implants.
The Penn study was published online Aug. 24 in the Journal of the American Dental Association.
The researchers used a device called a microchip to monitor the dogs and record their dental health over a six-month period.
The device contains sensors that record bone, dental and blood flow in the dogs, and the researchers then looked at how the dogs were doing on the tasks, like eating and chewing.
The implants measured blood flow and saliva production.
The dogs did not lose any teeth or have any significant problems with tooth loss or tooth loss, the researchers said.
A recent study from the University in Pennsylvania found that the implant had no impact on the health of a group of dogs who had lost their teeth.
A 2015 study in the journal PLOS One found that people who lost their whole teeth had a 10 percent chance of dying by the end of the study.
The latest Penn study did not look at dogs’ health in the first year after surgery, which could explain the difference in findings.
The University of Pittsburgh said it has a policy against comparing implant results to the results of previous studies.
“As we have seen from previous studies, the impact of the implant remains variable,” the university said in a statement.