Sigma Dental Specialists – Frisco is a trusted specialty dental practice located at 14688 TX-121, Suite 100, Frisco, TX. Conveniently situated along the TX-121 corridor, our board-certified endodontists and periodontists serve patients from Frisco, Plano, Allen, McKinney, The Colony, and surrounding Collin County communities. Our endodontic services include root canal treatment, endodontic retreatment, apicoectomy, cracked teeth treatment, and traumatic dental injury care. Our periodontic services include periodontal disease treatment, crown... read full review »