The Roll-Up Flywheel: How SDL Scales a Fragmented Industry Tagline: From many small labs to one powerful platform. ORLANDO, Fla., Sept. 30, 2025 /PRNewswire/ -- Standard Dental Labs Inc. ("SDL" or the "Company") (OTCQB: TUTH) today launched its Investor Education Series, a three-part primer for shareholders and prospective investors. Part 1—The Roll-Up Flywheel—explains SDL's unique growth model: acquiring independent dental labs, preserving local craftsmanship, and unlocking scale economics through standar ...