Some people have all four of their second premolars (bicuspids) removed as part of their orthodontic treatment plan.If a person has had their lower right first molar extracted (tooth #30), the teeth on either side of this tooth space will still keep the numbers 29 and 31.If a person has all of their teeth except for their wisdom teeth, their teeth will be numbered 2 through 15 and 18 through 31.(Teeth that have been extracted, have not yet come in or else did not form.) In the case of missing teeth, the numbering is carried out as if these teeth did exist. There is the possibility that a person will have some missing teeth. It then proceeds all of the way around the mandibular arch until tooth #32, the mandibular (lower) third molar, has been reached.Tooth numbering then continues on by dropping down to the mandibular (lower) left third molar (tooth #17).From tooth #1, sequential numbering moves forward along the maxillary arch all the way across and around to the maxillary (upper) left third molar, which is tooth #16.Tooth #1 is the maxillary (upper) right third molar.b) How does this system work when identifying permanent teeth?įor permanent teeth (“adult teeth”), the Universal system assigns a number, ranging from 1 to 32, to each individual tooth. It is also sometimes referred to as the National Tooth Number system. This system has been adopted by the American Dental Association and is the numbering scheme most utilized by dental insurance companies and dentists alike. The Universal system is the most popular tooth identification method used in the USA. (Using the Universal / National System.) a) What is the Universal Tooth Numbering System? – Pre-test study materials : Exam graphic, terms, definitionsġ) Teeth-numbering quizzes. Take the quiz : Baby / Deciduous Teeth quizzes.– Pre-test study materials : Exam graphic, terms, definitions Take the quiz : The Which Type of Tooth quiz.Take the quiz : The Name That Tooth quiz.Take the quiz : The Kinds of Teeth quiz.Take the quiz : Tooth Numbering Quiz 1, 2, 3 – Pre-test study materials : Exam graphic, terms, definitions.Our remaining quiz targets the topic of deciduous (baby) teeth identification.
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