Screen Readers Skip to Content

Dental: Teeth Facts and Information

Synopsis: Information and facts on human teeth and cosmetic dentistry including dental implants, crowns, and bridges.

Updated - Revised Date: 2019-03-31

Key Points:

Main Document

Human teeth are classified as incisors, canines, and molars Humans usually have 20 primary teeth (also called deciduous, baby, or milk teeth) and 32 permanent teeth.

Among primary teeth, 10 are found in the (upper) maxilla and the other 10 in the (lower) mandible. In the primary set of teeth, there are two types of incisors, centrals and laterals, and two types of molars, first and second. All primary teeth are replaced with permanent counterparts except for molars, which are replaced by permanent premolars.

Among permanent teeth, 16 are found in the maxilla with the other 16 in the mandible.

Types of Human Teeth

For human teeth to have a healthy oral environment, enamel, dentin, cementum, and the periodontium must all develop during appropriate stages of fetal development. Primary (baby) teeth start to form between the sixth and eighth weeks in utero, and permanent teeth begin to form in the twentieth week in utero.

It's important to take care of your mouth and teeth starting in childhood. If you don't, you could have problems with your teeth and gums, like cavities or even tooth loss. How to keep your mouth and teeth healthy:

Chewing gum assists oral irrigation between and around the teeth, cleaning and removing particles, but for teeth in poor condition it may damage or remove loose fillings as well. Chewing sugar free chewing gum that contains xylitol may be good for teeth. Dental chewing gums claim to improve dental health. Sugar-free chewing gum stimulates saliva production, and helps to clean the surface of the teeth.

Parts of the Human Tooth

fig 1. Labeled diagram of a human tooth.
fig 1. Labeled diagram of a human tooth.

Most teeth have identifiable features that distinguish them from others. There are several different notation systems to refer to a specific tooth. The three most commons systems are the FDI World Dental Federation notation, the universal numbering system, and Palmer notation method. The FDI system is used worldwide, and the universal is used widely in the United States.



Tooth Decay:


A dentist, also known as a dental surgeon, is a health care practitioner who specializes in the diagnosis, prevention, and treatment of diseases and conditions of the oral cavity. The dentist's supporting team aids in providing oral health services. The dental team includes dental assistants, dental hygienists, dental technicians, and in some states, dental therapists.

List of Dental Terms and Definitions

Cosmetic Dentistry

Cosmetic dentistry is very popular today because people the world over are realizing that they can change the way they look and feel relatively easily with the help of a cosmetic dentist. If you were born with unattractive teeth, if they are suffering the affects of aging, or if stress and bad dental care has finally caught up with you, a cosmetic dentist can help turn back the clock with a variety of dental procedures.

When a tooth is lost, dentures, bridges, or implants may be used as replacements. Dentures are usually the least costly whereas implants are usually the most expensive.

Though implants are the most expensive treatment option, they are often the most desirable restoration because of their aesthetics and function.

Stained Teeth

Teeth Abnormalities

Tooth size abnormality:

Teeth number abnormality:

Teeth shape abnormality:

Worldwide Dental Facts and Statistics


Subtopics and Associated Subjects

Related Information

Dental and Teeth: Full Document List

Disclaimer: Disabled World is strictly a news and information website provided for general informational purpose only and does not constitute medical advice. Materials presented are in no way meant to be a substitute for professional medical care by a qualified practitioner, nor should they be construed as such. Please report outdated or inaccurate information to us.

Disclosure: Disabled World is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Any 3rd party offering or advertising on does not constitute endorsement by Disabled World. View our Advertising Policy for further information.

Cite Page: Journal: Disabled World. Language: English (U.S.). Author: Disabled World. Revised Publication Date: 2019-03-31. Title: Dental: Teeth Facts and Information, Source: <a href=>Dental and Teeth</a>. Retrieved 2021-03-07, from - Reference: DW#283-17.172.98-6c.