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Pictures | Tue Jul 12, 2011 | 12:15pm EDT

Experts grow whole tooth units using mouse stem cells

<p>This handout picture taken in 2010, and released to Reuters on July 12, 2011 shows a bioengineered tooth (R) engrafted into the lower jaw of a mouse at Tokyo University of Science. REUTERS/Dr. Takashi Tsuji/Tokyo University of Science/Handout</p>

This handout picture taken in 2010, and released to Reuters on July 12, 2011 shows a bioengineered tooth (R) engrafted into the lower jaw of a mouse at Tokyo University of Science. REUTERS/Dr. Takashi Tsuji/Tokyo University of Science/Handout

This handout picture taken in 2010, and released to Reuters on July 12, 2011 shows a bioengineered tooth (R) engrafted into the lower jaw of a mouse at Tokyo University of Science. REUTERS/Dr. Takashi Tsuji/Tokyo University of Science/Handout

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<p>This handout picture taken in 2010, and released to Reuters on July 12, 2011 shows a bioengineered tooth unit grown by researchers at Tokyo University of Science, using mouse stem cells. REUTERS/Dr. Takashi Tsuji/Tokyo University of Science/Handout</p>

This handout picture taken in 2010, and released to Reuters on July 12, 2011 shows a bioengineered tooth unit grown by researchers at Tokyo University of Science, using mouse stem cells. REUTERS/Dr. Takashi Tsuji/Tokyo University of Science/Handout more

This handout picture taken in 2010, and released to Reuters on July 12, 2011 shows a bioengineered tooth unit grown by researchers at Tokyo University of Science, using mouse stem cells. REUTERS/Dr. Takashi Tsuji/Tokyo University of Science/Handout

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2 / 2

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