See the charts below demonstrating the numbering system used for both the permanent dentition and the primary dentition. For example, if the supernumerary tooth is adjacent to tooth “A,” then the supernumerary tooth is documented and reported as “AS.” Teeth Numbers and Names: Upper Right Quadrant. Here is a complete list of all of the teeth numbers and names (these names are also included on the tooth number chart). It uses a two-digit number, where the first digit represents the quadrant and the second digit. Their numbering begins on the rear left wisdom tooth, or 3 rd molar, is the lowest. The FDI system is an international standard for tooth numbering. The bottom teeth, 17-32, are known as the mandibular arch. The top teeth numbering starts on your right-hand side so your rear right wisdom tooth, or 3 rd molar, would be your number one tooth. Similarly, tooth 18 and tooth 31 are both named Molar (2nd Molar). The top teeth, numbered 1-16, are known as the maxillary arch. It typically depicts a human mouth, with. For example, tooth 8 and tooth 9 are both named Incisor (Central). Primary Dentitionįor the primary dentition, supernumerary teeth are identified by the letter “S.” Simply identify the area of the supernumerary tooth and add “S” to the tooth letter of the tooth adjacent to the supernumerary. Dentists and other dental professionals use tooth number charts to identify and refer to specific teeth in the mouth. For example, if the supernumerary tooth is adjacent to tooth #19 then it will be documented and reported on the claim form as tooth #69 (19 + 50 = 69). Numbering begins in the upper right quadrant in the area of the third molar and continues to the upper left, then down to the lower left quadrant, and across to the lower right, ending in the third molar area.Īn easy way to determine the tooth number is to identify the tooth area of the supernumerary tooth and add 50 to that tooth number. The numbering system follows the same pattern as the usual tooth numbers. Permanent Dentitionįor the permanent dentition, supernumerary teeth are identified by numbers 51 through 82. Appropriate teeth numbers or letters are required when reporting dental procedures on supernumerary teeth. Tooth chart with number infographic illustration vector on blue. The existence of extra teeth can create confusion when filing claims. Orthodontist human teeth loss diagram, dental scheme and orthodontics medical vector. Each tooth has a unique number or letter, allowing for easier use on keyboards.A supernumerary tooth is an extra tooth beyond the 32 teeth in the permanent dentition or 20 teeth in the primary dentition. Then the count begins at the mandibular left third molar, designated number 17, and continues along the bottom teeth to the right side. The tooth designated "1" is the maxillary right third molar (" wisdom tooth") and the count continues along the upper teeth to the left side. The uppercase letters A through T are used for primary teeth and the numbers 1 - 32 are used for permanent teeth. The labels "right" and "left" on the charts in this article correspond to the patient's right and left, respectively.Īlthough it is named the "universal numbering system", it is also called the "American system" as it is only used in the United States. The patient's right side appears on the left side of the chart, and the patient's left side appears on the right side of the chart. However, dentists in the United Kingdom commonly still use the older Palmer notation despite the difficulty in representing its graphical components in computerized (non-handwritten) records.ĭental charts are normally arranged from the viewpoint of a dental practitioner facing a patient. Please note that everyone has all the molar teeth. For permanent teeth, the numbering starts from Quadrant 1, so the first tooth will be 11, followed by 12. Most of the rest of the world uses the FDI World Dental Federation notation, accepted as an international standard by the International Standards Organization as ISO 3950. Check left and right and match it to the markings on the tooth chart. The Universal Numbering System, sometimes called the "American System", is a dental notation system commonly used in the United States. The meridians from bicuspids and molars are to the large intestine and stomach. This is a dental practitioner view, so tooth number 1, the rear upper tooth on the patient's right, appears on the left of the chart. Here are a few meridians that connect to your teeth: Incisors and canine teeth are on meridians that connect to the kidney, liver, and gallbladder. For the metal alloy numbering system, see Unified numbering system. This article is about the dental notation system.
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