Final answer:
The trauma to the gingiva from over contouring leading to food pushing against it is classified as a Periodontal Hazard. Good oral hygiene and early treatment with professional dental interventions are critical in preventing and managing periodontal diseases. The correct option is C.
Step-by-step explanation:
Over contouring, the gingiva can be traumatized by food pushing against it. This would be classified as a Periodontal Hazard. Proper dental hygiene, professional cleaning, and the use of antibiotics in severe cases can help prevent and treat conditions related to periodontal disease such as gingivitis and periodontitis.
These periodontal diseases are characterized by inflammation, erosion of the gums, bleeding, halitosis, erosion of cementum, and in advanced cases, can lead to tooth loss or the need for surgical removal. It's essential to understand that not treating periodontal disease can lead to the spread of infection beyond the oral cavity, sometimes affecting the heart as in bacterial endocarditis.