![]() So, the top right of your mouth’s interior is quadrant one (that’s your right side), while your top left is quadrant two. The upper portions of your mouth are the first two quadrants, while the lower portions are the third and fourth ones. LR - Lower left quadrant: lower left first incisor to lower left wisdom tooth LL - Lower right quadrant: lower right first incisor to lower right wisdom tooth UL - Upper left quadrant: upper left first incisor to upper left wisdom tooth UR - Upper right quadrant: upper right first incisor to upper right wisdom tooth Proximal – Tooth surfaces that are next to each other (i.e., distal of lateral incisor and mesial of canine).Occlusal – The chewing surface of posterior teeth.Mesial – The surface that is closest to the midline of the face.Lingual – The surface that faces the tongue.Incisal – The biting edge of an anterior tooth.Buccal – The surface towards the cheeks.Facial – The surface that faces the cheeks or lips.Distal – The surface that is away from the midline of the face.When identifying teeth and referring to specific areas of a tooth, it is necessary to utilize named surfaces and directions designated according to where it is located. Most people have all of their permanent teeth in place by age 21. Molars are usually the first permanent teeth to come in. They’re then replaced by permanent teeth. Most kids have all 20 of their primary teeth by age 3.Ĭhildren tend to lose their primary teeth between the ages of 6 and 12. The lower incisors are usually the first primary teeth to come in. Primary teeth start to erupt through the gums when a baby is about 6 months old. They include the same 10 teeth in the upper and lower jaw: Most adults have 32 teeth, called permanent or secondary teeth:Ĭhildren have just 20 teeth, called primary, temporary, or milk teeth. The image below shows the alternative Numbering Systemsįig:2 What Are the Different Types of Teeth Called? As we manufacture appliances from many countries, we often see alternative notations on our prescriptions ![]() In other countries, such as the US, dentists use another system known as the Universal System, or in Canada, where dentists use the ISO/FDI system. Below is the Charting for the Palmer system. In other countries, such as the US, dentists use another system known as the Universal System, or in Canada where dentists use the ISO/FDI system. In the UK, we use the Palmer Notation Method. Numbering of Teethĭentists have a chart that uses numbers to help them make notations of healthy and problem teeth. We want you to understand what you are reading on prescriptions so here’s a guide to understanding dental terminology, teeth names, areas of the mouth and especially what the numbers of the teeth mean. Dental terminology is almost its own language, with lots of unique terms and numbers tossed around by the professionals.
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