ROCK VALLEY, Iowa -- Cosmetic dentistry is, by his own account, the first thing Leonardo "Leo" Marquez thinks of in the morning. It's also the last thing he thinks about before bed.
That keeps him going while he works 65 hours a week at a dental office and a cheese factory, and also taking online classes at WITCC, as he plots his way to dental school. He says he "never" gets tired of the long hours, as long as the work brings him closer to his dreams.
"I am obsessed," Marquez said of his longing to be a great dentist.
"I've been having that conversation with my mom, she's asking me, 'Hey, you don't feel tired, you don't feel overwhelmed, burned out?'" he said. "And honestly, no."
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Marquez, 27, was born in the Mexican state of Zacatecas and raised primarily in Colotlán, in the neighboring state of Jalisco. After he graduated high school, in 2009 Marquez and his family joined his father, who was working at a farm in Rock Valley.
Marquez couldn't speak any English at the time, and since he'd already graduated from high school in Mexico, his opportunities to learn English were limited. So in 2011 he returned to Mexico to take up dental school, which he finished in 2015 (spoiler alert: he's already a dentist in Mexico).
Leonardo "Leo" Marquez is shown at the Rock Valley Dental office in Rock Valley, Iowa. Marquez, 27, is hoping to get into dental school so he can become a cosmetic dentist.
The decision to work in cosmetic dentistry (or, more broadly, in health care) was one that Marquez arrived at when he was young. It's not really about the money, lucrative though dentistry may be -- a self-described "social person," Marquez says he want to help people whose teeth need help.
And he's always had respect for those who wear white coats at their jobs.
"Whenever you go to the doctor, any doctor, you are a little bit worried and they bring solutions, and I always admire people who study a lot," he said. "I knew that it was hard. I didn't want to do anything easy with my life. Since I was a kid, I was trying to do things that, in a sense, make me feel fulfillment.
"When you are doing cosmetic dentistry, you can literally change lives."
In 2016, Marquez returned to the states after a required period of post-college dental work in Mexico, where he was beloved by his patients.
"I was working in the hometown where my grandma is, those patients still are asking her when I am going to go back," he said.
Settling into the life of a dentist in Mexico wasn't quite enough for Marquez, who said the United States is "one of the best countries in the world to get dental education" -- the technology and resources available to American dentists, he said, outstrip what's available to dentists south of the border.
"I know how easy it is for you, just to deliver the procedures with more precision, with more quality, when you have the resources," he said.
Marquez
He still spoke no English on his return, so he set out learning the language with a computer program, followed by a semester of English classes at Texas State University in San Marcos. While there, he also worked at a dental clinic in Austin.
He subsequently returned to Iowa again, finding it would be more practical to stay with his parents for free and save money working close to home. Paying rent while working and studying in Texas was costly and burdensome.
Even as a licensed dentist in Mexico, Marquez found hurdles stood between him and an American DDS license.
Step one was the National Dental Board Examinations, which he passed after 20 months of studying and practicing his English: "Those were a huge deal, definitely."
Step two was applying to dental schools that offer an international dental program, which allow students to capitalize on dental education and experience they bring from their home countries. The best fits for him, he found, were at the the University of Texas at San Antonio and at the University of Buffalo in New York.
He interviewed and did dental work on a mannequin at the San Antonio dental school the first week of October, followed by mannequin tests at Buffalo the following week.
Dental assistant Leonardo "Leo" Marquez works with dentist Dr. Amber Meyer as she examines the teeth of patient Javier Cardenas Graeta Sept. 26 at Rock Valley Dental in Rock Valley, Iowa. Marquez immigrated from Mexico 10 years ago and currently works 65 hours a week between jobs at the dental practice and a local factory. He hopes to get into dental school and become a cosmetic dentist.
Competition for the spots was tough. He did not make the cut at Buffalo, while San Antonio's response should come by November or December.
He's planning to apply to other schools as well and wants to be in the classroom by next fall. He expects to finish his U.S. dental schooling in two years.
Once he's a licensed American dentist, Marquez has big plans for both sides of the border. He wants to live close to the U.S.-Mexico border, practicing as a prosthodontist in the United States but also owning his own dental practice in Mexico. He said he'll probably hire other dentists to staff the office in Mexico, periodically traveling there himself to see patients.
"Being someone who's bilingual put me in a special position to reach more people," he said. "I want to own the best dental office in Mexico."
In the meantime, Marquez is working 12-hour shifts at a cheese factory in Hull, Iowa, and as a dental assistant at Rock Valley Dental when he has days off at the factory. His Spanish and English skills make him an asset for Rock Valley Dental.
As if all that wasn't enough, he's also taking online courses through Western Iowa Tech Community College to earn an expanded dental assistant license.
Living with his parents, he's saving money for the costly journey to dental school -- school fees and costs (applications, interviews, deposits, plane tickets) mount quickly, even before you've been accepted and begin paying the steep tuition bill. Getting your foot in the door isn't cheap.
"(In) August, I worked 27 days in a row," he said. "Dentistry is very expensive."
Photos: Historic auto dealers in Sioux City
Davidson's Auto Block
H. A. Wetmore’s Hudson automobile dealership at 6th and Nebraska, ca. 1910.
Wetmore Chalmers Dealership
H. A. Wetmore’s Chalmers dealership at 6th and Nebraska Streets, ca. 1914.
Wetmore Chalmers Dealership
The showroom of H. A. Wetmore’s Chalmers dealership at Sixth and Nebraska Streets is shown above, ca. 1914.
Knoepfler historical photos
A view of Knoepfler's used car selection in the 1920s.
Knoepfler Historical photos
A historic photo of cars at Knoepfler.
William Warnock Co.
Display of William Warnock Co. Dort and Liberty passenger cars at the Interstate Fair in South Riverside, ca. 1920.
Sioux City Motor Sales Co.
Sioux City Motor Sales Co. at 317-319 5th St. with Haynes race car, ca. 1920.
Murray Cadillac
The C. J. Murray Cadillac dealership, 100 W. 7th St., is shown ca. 1950.
Ryal Miller Chevrolet
Ryal Miller Chevrolet at 5th Street and Nebraska Street, ca. 1920.
Stoddard Motor Co.
Stoddard Motor Co. at West 7th Street and Pearl Street, with Durant automobiles, ca. 1930.
Wilson Motors
Wilson Motors car dealership, 407 W. 8th St., is shown in August 1976.
Vigen Motor Company
Vigen Motor Co., 200 W. 7th St., circa 1947.
Carlin Motor Company
Carlin Motor Company, dealer for Lincoln and Mercury automobiles, moved to 655 Water St. in 1947. It was formerly at 310 W. 7th St. Latest garage equipment and facilities were incorporated to make one of the most modern garages in the area.
Hoak Motors
Hoak Motors used cars, Seventh and Pearl streets, is shown in August 1976.
Bob Tagatz Pontiac
Bob Tagatz Pontiac, 100 W. 7th St., is shown in the fall of 1976.
Salzness Buick
Buick special edition “Siouxland Edition” on the sales floor at Salzness Buick, 623 Pearl St., 1976.
Senftner Volkswagen Porsche Audi
Senftner Volkswagen Porsche Audi at 1901 6th St., circa 1977.
To BROWSE historic photos of auto dealers in Siouxland, point your smartphone camera at the QR Code and tap the link.

