Who We Are WinTerra Dental (formerly Cumulus Dental) is simplifying dental and periodontal charting, enabling clinicians to focus on better health outcomes. Our Vision To improve the health of people and the planet. Our Values Respect. Innovation. Excellence. Introducing SmartChart™: The only charting system that is voice-activated for both dental and periodontal charting, plus offers a 3D odontogram and single-user functionality. No need to change your DPMS.