TETH OGFGOF

Incisors

Sharp, chisel-shaped teeth located at the front of the mouth, used for cutting and slicing food. There are 8 total (4 in the upper jaw and 4 in the lower jaw).

Canines

Pointed and cone-shaped teeth located next to the incisors, designed for tearing and gripping food. There are 4 total (2 in the upper jaw and 2 in the lower jaw).

Premolars

Broad and flat teeth with ridges on the surface used for crushing and grinding food. There are 8 total (4 in each jaw).

Molars

Large, flat teeth at the back of the mouth with multiple roots, specialized for grinding and crushing food. There are 12 total (including 4 wisdom teeth).

Enamel

The outermost layer of the tooth, the hardest and most mineralized substance in the human body, protecting the tooth from damage.

Dentine (Dentin)

The layer beneath the enamel that forms the bulk of the tooth structure, supporting enamel and containing microscopic tubules.

Gum (Gingiva)

The soft tissue surrounding and protecting the base of the teeth, supporting them and preventing bacteria from reaching deeper structures.

Pulp Cavity (Dental Pulp)

The innermost part of the tooth containing soft tissue, blood vessels, nerves, and responsible for supplying nutrients to dentine.

Cement (Cementum)

A thin, bone-like layer covering the root of the tooth that anchors it to the periodontal ligament and helps maintain stability.

Nerve

A bundle of nerve fibers inside the pulp cavity that transmits signals to the brain, detecting pain and regulating blood flow.

Fibres (Periodontal Ligament Fibres)

Connective tissue fibers attaching the tooth to the surrounding jawbone, acting as shock absorbers during chewing.

Jawbone (Alveolar Bone)

The part of the jaw that houses the sockets of the teeth, providing structural support and undergoing continuous remodeling.

Milk Teeth (Primary Teeth)

The first set of teeth totaling 20, which begin erupting around 6 months and are replaced by permanent teeth between 6-12 years.

Permanent Teeth

The second set of teeth totaling 32, designed for stronger biting and chewing, meant to last a lifetime with proper care.

Fluoride

A naturally occurring mineral that strengthens tooth enamel and helps prevent cavities.

Dental Fluorosis

A condition causing white spots on teeth due to excessive fluoride intake during early childhood.

How many of each teeth do adults usually have?

8 incisors, 4 canines, 8 pre-molars, 12 molars.

What are wisdom teeth ?

They are 4 molars at the end of the jaw that are the last set to grow through the gum.

Fluorides can be dangerous, ESPECIALLY to..

young children and thus, they should never swallow fluoridated toothpaste.

Sources of fluoride pollution ?

Sources of Fluoride Pollutiona) Natural Sources

• Geological Activity: Some areas have high levels of fluoride in rocks, leading to natural contamination of groundwater.

• Volcanic Emissions: Volcanic eruptions release fluoride into the air and water sources.

b) Human-Made Sources

• Industrial Discharges:

  • Aluminum smelting, phosphate fertilizer production, and steel manufacturing release fluoride into air and water.

• Coal Burning:

  • Coal contains fluoride, and when burned, it releases fluoride gas into the atmosphere.

• Water Fluoridation:

  • While controlled fluoride levels in drinking water prevent tooth decay, excessive fluoride in water supplies can become harmful.

• Agricultural Runoff:

  • Phosphate fertilizers contain fluoride, which can leach into soil and water, affecting plants and animals.