Invisalign maker Align beats quarterly estimates on strong dental demand

• Separately, Align said that it will add three independent directors to its board and launch a review of its operations after talks with activist investor Elliott, which has emerged as one of the firm's largest shareholders.

July 29 (Reuters) - Align Technology ALGN.O on Wednesday inched past Wall Street estimates for second-quarter profit and revenue, helped by strong demand for its dental aligners.

Shares of the company, however, were down over 5% in extended trading.

Here are some details:

• On an adjusted basis, Align earned $2.64 per share during the quarter, beating analysts' estimate of $2.61 per share.
• Revenue for the second quarter came in at $1.06 billion, compared to expectations of $1.05 billion.

• The firm expects third-quarter revenue between $1.0 billion and $1.02 billion, compared with analysts' estimates of $1.02 billion, according to data compiled by LSEG.
• The company maintained its annual revenue growth expectations at 3% to 4%.

• Revenue from Align's Imaging Systems and CAD/CAM Services segment declined 10.8% to $185.3 million in the second quarter. Align attributed the drop to a sluggish market for expensive dental equipment and a shift by doctors toward lower-priced scanners and leasing options.