Dental and Oral Biology

S.sanguis is the next most common organism implicated in dental caries after S.mutans.

The destruction of the alveolar bone may displace the teeth producing 'floating tooth' appearance.

Products of the necrosed pulp enter the periapical tissue. Thereby stimulating the proliferation of cell rests of malassez. The central cells of this proliferation mass of cells undergo degeneration to form a cystic cavity.

Question asked here is about benign tumour, and all epuli need not be tumours. So, the answer is fibroma and not epulis.

Tetracycline causes yellowish or brownish - grey diffuse bands of discoloration that are located within the tooth structure and are not on the surface.

Several organisms have been found capable of including carious lesions; these include mutans group of streptococcus.

Each tooth is embedded in a socket of jaw bone. This type of attachment is called thecodont.

Hypopharynx is not a true segmented mouth appendage. It is a tongue-like appendage, which can be distinguished as proximal, membranous and distal, more sclerotised area.

Colgate's 'Sensitive' toothpaste is specifically designed to desensitize nerves and provide fast relief from sensitive teeth. It contains potassium nitrate which helps block the pain signals from tooth nerves to the brain. Pepsodent, Cibaca, and Dabur are other oral care brands but 'Sensitive' is Colgate's specialized product line for this dental concern.

Molar teeth are known as wisdom teeth.

Incisors are cutting and biting type of teeth.

Molars and premolars are chewing and grinding type of teeth.

The pharynx is at the back of buccal cavity. The pharynx is a common channel for food and air.

Ameloblasts are present only during tooth development.

Mastication is the process by which food is crushed and grinded by teeth. It is the first step of digestion and it increases the surface area of foods to allow more efficient break down by enzymes. During the mastication process, the food is positioned between the teeth for grinding by the cheek and tongue.