Tooth Decay: Wisdom Teeth (Tooth) Symptoms

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Teeth (Tooth)

Tooth Decay: Wisdom Teeth (Tooth) Symptoms
 Hetero-dontia dentition is the technical term given to the teeth of humans and most omnivorous mammals, simply meaning that the teeth are capable of handling various forms of food substances. The upper and lower jaws have a nearly identical set up.

 The incisors can be found are the four front teeth on both rows, which are designed to tear through and cut the food from its source, such as biting into a sandwich. Their shape is reminiscent of chisels, and they operate on the same basic principle.

 The cuspids, which are often called canines, are shaped rather like cones. Their main purpose is to hold food and help in the tearing process, and they are positioned at the corners of each set of teeth. Canines and incisors are unique in their single root composition, unlike the remaining teeth which have at least two. The labial side of the incisors and canines are those that run along the lips’ edges.

 The bicuspids, or premolars, are positioned just behind the canines. Premolars generally have two or three roots and appear to be more rounded to serve their purpose of grinding food. The irregular surfaces that they appear to have are known as dental cusps, and are the exact right shape for grinding the food to a pulpy, easy to swallow mass. The surface of the premolars which remains near the cheek is known as the buccal surface. The remaining teeth are known as molars. For all teeth, the surface which runs along the tongue is known as the lingual surface.

 Humans go through two sets of teeth, the first set which arrive during early childhood and the second set of permanent teeth that comes in during late childhood and preadolescence. This phenomenon is known as diphyodont. There is an actual formula to discern the two sets of teeth humans develop over a lifetime.

 Deciduous Dentition Formula: I 2/2, C 1/1, DM2/2, = 10x2 = 20 teeth Permanent Dentition Formula: I2/2, C 1/1, P 2/2, M 3/3, = 16x2 = 32 teeth

 What this stands for is nothing more than the first letter of the identified tooth followed by the total number of that tooth in the mouth for each given cycle. I stands for incisors, C means canines, DM refers to deciduous molar, P refers to premolars, and M means molar, as in the permanent type.

 Somewhere around 6 months of age, the milk teeth, or the 20 deciduous teeth, begin to emerge from the gums. The first teeth are most typically the incisors, although sometimes a rare child might sport a lower canine or something first. These teeth continue to come in until at around age 2 1 to 3 the full first set of deciduous teeth have grown into the mouth.

 Somewhere around the age of 6 or 7, the deciduous teeth begin to be replaced by the permanent teeth, forcing the deciduous teeth to fall out as the permanent teeth grow into the space. Typically around age 17, the final set of molars, the wisdom teeth, begin to erupt. However, there have been numerous documented cases of wisdom teeth breaking the surface of the gums as late as age 30. Wisdom teeth are not usually able ot accommodated by the size of the current human mouth, leading scientists to believe that the mouths of humans was once much larger. Wisdom teeth often grow in sideways, and can crush the molars next to the erupting wisdom teeth if not removed.

 The design of human teeth is really quite ingenious. The dental cusps belonging to both the molars and the premolars are designed to occlude, allowing for the crushing and mashing of food that the incisors and the canines have torn from the source via a slicing action made when they slide across each other.

 Each tooth has a crown, which is the exposed section above the gum line. Teeth are held into their sockets, or dental alveoli, by at least one root. The teeth fit into the recesses of the alveolar processes belonging to the mandible and the maxillae. Every tooth socket has a lining of connective tissue known as the periodontal membrane. Roots are cemented with a material aptly named cemetum, which enables teeth to be exposed to a wide variety of circumstances. The tooth is actually secured to the dental alveoli via fibers which run from the periodontal membrane into the cementum. There is a mucous membrane which encases the alveolar process, casually called the gums, known as the gingiva.

 The tooth itself is similar to bone, but is in fact constructed of dentin, which is harder than bone. Enamel coats the dentin, creating the crown, which makes the tooth even more difficult to penetrate. Enamel is the hardest, most durable substance throughout the entire human body, and is comprised of nearly 100% calcium phosphate. Inside the tooth, centrally located, the tooth contains an additional cavity which holds the pulp. The pulp is comprised of connective tissue and blood vessels, and is responsible for keeping the tooth alive. Lymph vessels and nerves are also found within the pulp cavity. It is this cavity which is opened and repaired when a root canal is performed. The apical foramen, which is the opening that permits a root canal, is the main entranceway to the tooth for the necessary nourishment the tooth requires. During embryonic development, a mother who lacks sufficient Vitamin D and calcium in the diet is likely to rob the fetus of the proper building blocks for healthy teeth. A poor diet during the embryonic stage can result in bad teeth even after the permanent set grow in.

 Chemical digestion begins with saliva, which with the help of the premolars and molars, churns the masticated food into the bolas. Saliva helps to break down the food, give it taste, and is the secondary link in the process of digestion, second only to the teeth.

Wisdom Teeth (Tooth) Symptoms

What are wisdom teeth?

 Wisdom teeth are the upper and lower third molars, located at the very back of the mouth. They are called wisdom teeth because usually they come in when a person is between age 17 and 21 or older—old enough to have gained some "wisdom." Wisdom teeth that are healthy and properly positioned do not cause problems.

What causes problems with wisdom teeth?

 Wisdom teeth may break partway through your gums, causing a flap of gum tissue to grow over them where food can become trapped and a gum infection can develop. Wisdom teeth can also come in crooked or facing the wrong direction. Or, if your jaw is not large enough to give them room, wisdom teeth may become impacted and unable to break through your gums. You may have trouble properly cleaning around wisdom teeth because they are so far in the back of your mouth and may be crowded.

What are the symptoms of wisdom tooth problems?

 Wisdom teeth often cause no symptoms. Symptoms that may mean your wisdom teeth need to be removed include:

Pain or jaw stiffness near an impacted tooth.
Pain or irritation from a tooth coming in at an awkward angle and rubbing against your cheek, tongue, or top or bottom of the mouth.
An infected swelling in the flap of gum tissue that has formed on top of an impacted tooth that has partially broken through the gum.
Crowding of other teeth.
Tooth decay or gum disease if there's not enough room to properly care for the wisdom tooth and surrounding teeth.
Most problems with wisdom teeth develop in people between the ages of 15 and 25. Few people older than 30 develop problems that require removal of their wisdom teeth.

How are problems with wisdom teeth diagnosed?

 Your dentist will examine your teeth and gums for signs of a wisdom tooth coming through your gum or crowding other teeth. You will have X-rays to find out whether your wisdom teeth are causing problems now or are likely to cause problems in the future.

How are wisdom tooth problems treated?

 The most common treatment for wisdom tooth problems is removal (extraction) of the tooth. Experts disagree about whether to remove a wisdom tooth that is not causing symptoms or problems. Oral surgeons generally agree that removing a wisdom tooth is easier in younger people (usually in their early 20s), when the tooth's roots and the jawbone are not completely developed. In the late 20s and older, the jawbone tends to get harder, and healing generally takes longer.

What is tooth decay?

 In short, tooth decay is a location on a tooth where so much of the tooth's mineral content as been dissolved away that a defect (a hole or a "cavity") has formed.

 Now, let's back up a few steps and start a discussion about tooth decay so this blurb of a description makes more sense.

Synonymous terms for tooth decay

 There are two terms that are frequently used to refer to tooth decay. The most common of these is the word "cavity," which no doubt simply refers to the hole that often forms as a result of the tooth decay process. Another term that can be used interchangeably with "tooth decay" is the word "caries." This is the term you will most frequently find used in dental literature. The word "caries" is derived from the Latin word for "rot," which seems to be a reasonably accurate description of the tooth decay process.

Has tooth decay always been a problem for mankind?

 No doubt throughout the entire history of humankind there have always been at least some individuals who have severely suffered from the effects of tooth decay. Cavities first became pandemic (an epidemic spread over a wide geographic region) however with the establishment of sugar plantations in the 1700's in the "New World." Subsequently, tooth decay affected yet greater numbers of people with the widespread cultivation of the sugar beet in Europe in the 1800's. ©2016.