Source: Align Technology.

What: After reporting fourth-quarter and full-year financial results that were better than hoped, shares in Align Technology (NASDAQ:ALGN) were up 10.4% at 2:30 pm EST.

So what: Align Technology continues to enjoy sales and profit growth tied to its Invisalign clear dental aligners. In Q4, the company reported that revenue increased 15.9%, to $230.3 million, and that net profit increased 23.6%, to $48.9 million. Adjusted EPS came in at $0.60, or 15.4% ahead of what industry watchers were expecting.

Sales growth was supported by a 26.4% increase in aligner shipments and a 33.4% improvement in its scanner and services segment. Meanwhile, year-over-year profit upside benefited from a slight decline in R&D spending and a pick-up in interest income.

Full-year results were solid, with revenue coming in at $845.5 million, up 11% from $761.6 million in 2014, and EPS staying constant at $1.77.

Now what: Align Technology also offered guidance for the first quarter that includes a 23% increase in aligner shipments, net revenues of $232.5 million to $236.6 million, and EPS of between $0.37 and $0.40. The top-line forecast is a bit better than the $226 million that people came into today anticipating.

Align Technology doesn't have any debt, its top line continues to post double-digit growth, the company is nicely profitable, and demand for less-noticeable aligners remains strong. As a result, this company is entering 2016 with solid tailwinds that could translate into profit-friendly returns.

Todd Campbell has no position in any stocks mentioned. Todd owns E.B. Capital Markets, LLC. E.B. Capital's clients may have positions in the companies mentioned. The Motley Fool recommends Align Technology. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.