If you allow calculus and plaque to build up over prolonged periods, this will lead to inflammation and gum (periodontal) disease. If you seek treatment in the early stages of gum disease, its effects are reversible and the gum tissue will heal. However, left too long, gum disease can result in permanent bone damage, requiring more advanced treatments and deep cleaning solutions. This is why it is so important to see a dental hygienist on a regular basis.