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Missing Teeth
 |  | | The first electric toothbrush was marketed in 1880, though the Swiss developed the first effective electric toothbrush just after World War II. It was introduced in the United States around 1960. A year later, the first cordless model was developed and proved to be popular with consumers and dentists. |
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| Fixed bridges and implants are often used to replace missing teeth and to correct some kinds of bite problems.
Crowns and bridges are the most effective procedure for replacing missing teeth or bite problems.
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