True Function Laboratory Inc

True Function Laboratory is a specialized dental lab based in La Mesa, California, with 25+ years of expertise in fabricating oral devices for obstructive sleep apnea (OSA), temporomandibular joint (TMJ) disorder treatment, and occlusal guards. The company supplies dentists and dental offices throughout the United States and Canada with FDA-cleared, made-in-America devices including sleep apnea appliances, splints, nightguards, and orthodontic appliances. True Function distinguishes itself through rapid turnaround (7 business days), proactive technical support, and commitment to device fit and quality. The lab accepts digital impressions via 3Shape, iTero, 3M True Definition, Carestream, and open STL files, enabling streamlined workflows for clinicians. The company's service model emphasizes minimizing chair time and patient stress while providing expert troubleshooting on impression quality, bite, and device selection.