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Former Silverthorne dentist sentenced after illegally distributing prescription drugs

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Posted at 7:45 AM, Apr 02, 2019
and last updated 2019-04-02 09:45:56-04

SUMMIT COUNTY, Colo. — A former dentist in Silverthorne was sentenced Monday after he pleaded guilty to illegally distributing pills from the practice.

Bonifacio Guillena III, 42, of Greeley, faces three years in community corrections for possessing a controlled substance with the intent to distribute. He pleaded guilty to the Class 3 felony in January.

Guillena was known as Dr. B while he worked as a dentist at a Comfort Dental in Silverthorne. He was issued a license to practice dentistry in the state in 2014 and it was suspended on Dec. 1, 2017. On May 21, 2018, he surrendered his license to practice, according to the 5th Judicial District Attorney's Office.

In March 2018, he fired an employee, who then informed police about Guillena’s illegal distribution at the practice.

The Silverthorne Police Department executed a search warrant and a subsequent seizure of documents substantiating the reported crimes. They found that he had been issuing prescriptions to employees for Xanax, Percocet and Oxycontin, beginning as early as February 2017, according to the district attorney's office.

“The defendant was not only abusing his license to practice dentistry, but he caused enormous harm to people he was licensed to give care for,” said 5th Judicial District Attorney Bruce Brown. “His crime is one of arrogance. His motivation: profit.”

Investigators also found that Guillena had been on probation for previous domestic violence incidents at the time of this crime. He had been ordered to perform a urinalysis exams, but he used other people’s urine to cheat his tests. Although he admitted to this, those charges were ultimately dismissed as part of the agreement.

After Guillena’s initial sentencing of three years in community corrections, he directed vulgarities at District Attorney Brown. He will be jailed for two days for contempt, and then released to report back to court on May 6 to begin his sentence, according to the district attorney's office.