In an interview for the media outlet Infobae, Hallgrimsson said that it is normal to “have two or three trades simultaneously or that alternate during their lives”. Before joining the world of international football management, Hallgrimsson lived a different life as a dentist. At times he has even combined the dentistry work with his sporting commitments.

In August 2016 he assisted a player who lost a tooth in a match. By chance, the coach was watching from the stands and jumped onto the field to help the unconscious soccer player and take him to his practice for further assistance.

Mike Morton can sometimes be the bearer of bad news. As a dentist during the week, when a patient has a cavity, it’s Morton's job to inform them they need to get a needle in their mouth. As an NFL umpire on the weekends, it’s Morton's job to throw a flag. “Maybe not bad news, but news they don’t want to hear,” Morton says with a chuckle.

Brian Philip Babin (born March 23, 1948) is an American dentist and politician who has served as the U.S. representative from Texas's 36th congressional district since 2015. The district includes much of southeastern Houston, some of its eastern suburbs, as well as Orange and some more exurban areas to the east.

Anderson Drew Ferguson IV[1] (born November 15, 1966) is an American politician who is the U.S. representative for Georgia's 3rd congressional district. The district stretches from the southern suburbs of Atlanta to the northern suburbs of Columbus, including a sliver of Columbus itself.

Paul Anthony Gosar (born November 27, 1958) is an American politician and dentist who has represented Arizona's 9th congressional district in the U.S. House of Representatives since 2023 and represented Arizona's 4th congressional district from 2013 to 2023

Michael Keith Simpson (born September 8, 1950) is an American politician and former dentist serving as the U.S. representative for Idaho's 2nd congressional district since 1999.

Jefferson H. Van Drew (born February 23, 1953) is an American politician and dentist serving as the U.S. representative for New Jersey's 2nd congressional district since 2019.

Albert John Bushong (September 15, 1856 – August 19, 1908), known as Doc Bushong, was an American catcher in Major League Baseball. Bushong also made appearances as an umpire and after his retirement from baseball, he practiced as a dentist. Some sources credit him with the invention of the catcher's mitt.

Following his retirement from basketball in 1973, Dischinger completed dental school in Memphis, Tennessee. With his wife Mary, he returned to Portland, where he had ended his NBA career, to begin an orthodontic practice in the Portland suburb of Lake Oswego.

Farrell died in Livingston, New Jersey, just six days shy of his 65th birthday. In his last will and testament, he requested that none of his grandchildren become fans of the Yankees organization due to issues with the team’s administration in his final year with the team.