Admission Test for Dental Hygiene (ATDH) Practice

Calculus, in relation to oral health, refers specifically to mineralized plaque that hardens on the teeth. This occurs when dental plaque, which is a soft biofilm of bacteria that forms on the teeth, undergoes a process of mineralization due to the accumulation of minerals from saliva. Over time, if not removed through regular brushing and professional dental cleanings, this plaque becomes hard and forms calculus, often referred to as tartar.

The formation of calculus is significant in dental hygiene because it provides a rough surface that can contribute to further plaque accumulation and subsequent periodontal issues, such as gingivitis and periodontitis. Additionally, calculus can only be removed through professional cleaning, underscoring the importance of regular dental visits for maintaining oral health. Understanding calculus is crucial for dental hygiene students and professionals as they educate patients about proper oral care practices.