There are three billionaires in the dental industry with a combined net worth of $9.3 billion, according to Forbes' 2023 World Billionaires List.
Thomas Straumann owns a 17 percent stake in Straumann Holding, the world's largest manufacturer of dental implants.
Christoph Zeller inherited dental products company Ivoclar Vivadent AG.
Heikki Kyostila is the president of dental equipment manufacturer Planmeca.
Learn more about the three individuals here.
Here is how their net worths have changed since 2018:
Mr. Straumann
2018: $2.7 billion
2019: $2.9 billion
2020: $2.6 billion
2021: $4.2 billion
2022: $5.6 billion
2023: $5 billion
Mr. Zeller
2018: $3.9 billon
2019: $3 billion
2020: $3.3 billion
2021: $5.5 billion
2022: $2.3 billion
2023: $2.3 billion
Mr. Kyostila
2018: $2.2 billion
2019: $1.4 billion
2020: $2.1 billion
2021: $1.5 billion
2022: $1.3 billion
2023: $2 billion