Shares of Align Technology Inc. ALGN, +0.97% jumped 14.1% after hours on Wednesday after the company, best known for its Invisalign teeth-alignment system, forecast first-quarter and full-year sales that were above expectations. Align said it expected first-quarter sales of $960 million to$980 million, above the FactSet consensus forecast for $947 million. For the full year, the company expected sales to be “up mid-single digits” year over year, compared with FactSet expectations for around 4% growth. For ...