Bing found the following results
Tartar on Teeth (Dental Calculus): Causes & Removal - Cleveland Clinic
Tartar Definition & Meaning - Merriam-Webster
Tartar (Dental Calculus): 6 Tips to Remove Tartar Buildup - WebMD
Calculus (dental) - Wikipedia
What to Know About Tartar Removal - Healthline
What Is Tartar? | Colgate®
How to remove plaque and tartar: Best home treatments - Medical News Today
Tatars - Wikipedia
Plaque vs. Tartar: Differences, Treatment, Prevention - Healthline
Tartar Causes - News-Medical.net