General Facts:

• characterized as loss of gum tissue at the gum line and exposure of the root of the tooth
• tooth appears longer than normal
• tooth may feel notched at the gum line
• is usually a common problem in adults over the age of 40, but can occur in teenagers
• may result in sensitive teeth
• may be a result of gingivitis and/or periodontitis

Causes:

• Aggressive toothbrushing
• Abnormal tooth position and crowding
• Genetics - hereditary thin, fragile or insufficient gingival tissue
• Gum disease - gingivitis and periodontitis
• Teeth grinding
• Adult orthodontic treatment
• Piercings in the lip or tongue that rub against the gums
• Eating disorders - from self-induced vomiting