Align Technology Inc (NASDAQ:ALGN) shares are trading lower in Wednesday’s after-hours session after the company reported second-quarter financial results and issued soft guidance. Q2 Revenue: $1.03 billion, versus estimates of $1.04 billion Q2 EPS: $2.41, versus estimates of $2.30 Total revenue was up 2.6% on a year-over-year basis after being unfavorably impacted by foreign exchange of approximately $11.6 million or 1.1%. Align, which sells the well-known Invisalign clear aligner system, said clear aligner revenues were down 0.1% year-over-year to $831.7 million in the quarter. Imaging systems and CAD/CAM services revenue ...