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安裝中文字典英文字典辭典工具!
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- Human tooth - Wikipedia
The roots of teeth are embedded in the maxilla (upper jaw) or the mandible (lower jaw) and are covered by gums Teeth are made of multiple tissues of varying density and hardness Humans, like most other mammals, are diphyodont, meaning that they develop two sets of teeth
- Teeth: Anatomy, Types, Function Care - Cleveland Clinic
Teeth Your teeth are part of your digestive system They break down foods by crushing or cutting them before you swallow Most humans have 32 teeth, although some have more and some have fewer Enamel (the protective outer layer of your teeth) is the hardest substance in the human body
- Teeth Numbers Guide: Everything to Know About Your Teeth
In this teeth numbers guide, we will discuss everything you need to know about your teeth numbers and the differences between permanent (adult) and primary (child) teeth
- Tooth | Definition, Anatomy, Facts | Britannica
Tooth, any of the hard, resistant structures occurring on the jaws and in or around the mouth and pharynx areas of vertebrates Teeth are used for catching and masticating food, for defense, and for other specialized purposes Learn more about teeth in this article
- The 4 Types of Teeth: Incisors, Canines, Premolars, and Molars
Our different types of teeth help us cut, tear, mash, and grind our food, making it easier to swallow Here’s what you need to know about each type and its role, as well as the parts and anatomy
- Teeth anatomy guide: types, function, parts more - Delta Dental
Your teeth are made of multiple parts, but do you know what they are? Discover how your teeth work, what they are made of, and more in this guide to the anatomy of teeth
- Child and Adult Dentition (Teeth) - Structure - TeachMeAnatomy
The human dentition is composed of two sets of teeth – primary and permanent Teeth are organised into two opposing arches – maxillary (upper) and mandibular (lower) These can be divided down the midline (mid-sagittal plane) into left and right halves
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