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said Monday that it bought Brontes Technologies, a maker of 3-D imaging systems for dentists, for $95 million in cash.

The Minnesota-based maker of Scotch tape and Post-it notes said the deal adds to its oral care business' intraoral scanning technology. These systems capture 3-D digital dental impressions used to make crowns, bridges and orthodontic appliances, rather than the traditional methods that involve placing conformable materials inside the mouth to make impressions.

"This investment reflects 3M's commitment to advanced technology and to invest in markets which are likely to become high-growth areas in the not too distant future," said Brad Sauer, executive vice president, 3M Health Care Business.

3M said the deal will result in a fourth-quarter charge of 12 cents to 13 cents a share, reflecting a write-off of in process research and development costs. The company plans to give guidance for the fourth-quarter during its third-quarter earnings call Friday.

Shares of 3M, a


component, recently were up 9 cents to $75.49.