Gingivitis is an acute or chronic inflammation that occurs in the tooth tissue under the effect of pathogenic factors.On the medical point of view, gums are the oral mucosa surrounding the surface of the teeth and on the surface of the grooves.Because almost every person has chronic gingivitis with varying degrees and ranges in a certain period of life, it is entirely reasonable to say that gingivitis is the most common disease in human beings.
     With gingivitis, the gums will be red and swollen or have bleeding. If brush your teeth, you will find it easy to bleed, or the tooth has a touch of pain, then you need to see a dentist.
     There are various types of gingivitis, but the most common and highest incidence of gingivitis is chronic gingivitis. This is also known as unclean gingivitis, marginal gingivitis.
     Gingivitis is a chronic inflammation caused by plaque on the surface of the gum or near the gums.The cause is clear, more common in children and adolescents, the prevalence rate of about 70%-90%, people usually do not occur before the age of 4-5 ，and most gingivitis from the age of 5, with the increase of age, the prevalence and severity is increased gradually.After puberty, the prevalence of gingivitis decreases slowly with age, and the prevalence of gingivitis in adults is lower.

• Initial tooth preparation-healthy tissues
• What is Gingivitis?