Different Dentitions PDF

Different Dentitions Module: Oral and Dental Science Tutor: Ms P Lazarou GDC Learning Outcomes 1.1.2 Describe oral diseases and their relevance to prevention, diagnosis and treatment 1.1.3 Explain general and systemic disease and their relevance to oral health 1.1.5 Describe relevant and appro...

Different Dentitions Module: Oral and Dental Science Tutor: Ms P Lazarou GDC Learning Outcomes 1.1.2 Describe oral diseases and their relevance to prevention, diagnosis and treatment 1.1.3 Explain general and systemic disease and their relevance to oral health 1.1.5 Describe relevant and appropriate dental, oral, craniofacial and general anatomy and explain their application to patient management Aim To enable students to recognise dental terminology associated with tooth anatomy and morphology and introduce the concept of the primary and permanent teeth, their functions and placement within the oral cavity. Intended learning outcomes By the end of this session the student will be able to: Recognise and describe the basic structure of a tooth and it’s surrounding tissues List the functions of the teeth Describe the terminology used in tooth morphology in order to recognise various landmarks on the tooth surface Revise the various dental notations of primary and secondary teeth used clinically Identify the different dentitions and the teeth associated with them Assessment Formative Summative Question & Answer Questions in Eassessment Learning Activities Workbook Clinical Skills Laboratory session Resources- for each student: Primary upper and lower jaws Permanent upper and lower jaws Basic tooth Structure  Refer to oral histology lectures Dental Anatomy for more detailed descriptions Image ref: Anatomy of a Tooth-teeth | Delta Dental of New Jersey (deltadentalnj.com) What is being described? forms the outer surface of the anatomical crown. It is the most densely mineralised and hardest substance in the body. chemical composition is 96% inorganic and 4% organic plus water. dense mineral content gives this substance the ability to resist the wear that a crown is subjected to. thickest at the incisal or occlusal area, becoming thinner at the cervical margin. Image ref: Free Vector | Free vector tooth anatomy in gum on white background (freepik.com) What is being described? layer of connective tissue surrounding the root of the tooth. ​ occupies the space bet ween the root and the alveolar bony socket and attaches them firmly together. ​ consists of fibres that c onnect between the alveolar bone and cementum and act a cushion or shock absorber when Image ref: Free Vector | Free vector tooth anatomy in gum on white background (freepik.com)  What is being described? Embedded in the dentine walls, composed of soft, fleshy connective tissue which contains nerve fibres, blood vessels and lymph. These enter through the apical foramen.​ The part in the crown of the tooth is referred to as the pulp chamber and in the root of the tooth as the root canal. Image ref: Free Vector | Free vector tooth anatomy in gum on white background (freepik.com)  What is being described? A tough fibrous layer of connective tissue covering the bone of both jaws. ​ contains blood vessels supplying the bone with nourishment.​ Around the necks of the teeth, the epithelium and outer layer of this tissue are attached tightly, helping to prevent debris passing down the side of the tooth.​ In a fully developed dentition, the teeth are so shaped and arranged in each arch that food is deflected away from this tissue to protect it from injury. Image ref: Free Vector | Free vector tooth anatomy in gum on white background (freepik.com) What is being described? a layer of pale, yellow calcified tissue covering the root. It resembles bone in composition. It’s main function is to give attachment for fibres. What is being described? forms the bulk of the tooth; it is tough, slightly elastic and yellow in colour. Unlike enamel it is capable of reacting to injury and stimuli. It can repair itself by laying down a tertiary layer. Student task- Tooth Morphology Workbook 1) Complete the table on structure of the tooth 2) Drag and drop the following to label the tooth correctly: Dentine Cementum Root canal Root Alveolar bone Periodontal ligament Gingivae Enamel Neck Pulp chamber Crown Image ref: lumenlearning.com Functions of Teeth Functions of teeth Image ref: Bing images Why do we need teeth? Image ref: www.shutterstock.com Tooth Function cont… Specialised functions of different types of teeth:  how many in each dentition?  where are they situated within the arch?  what is their specific function?  other details: e.g how many roots/cusps and why is this important? Dental Terminology Dental Terminology Watch this video: Basic Dental Anatomy for First Year Students: https://www.youtube.com/watch? v=eijR2mJOg0I 20 Image ref: dentapp s.leeds.ac.uk Learner Task: Please complete the Dental Terminology section in your workbook Carry out your own research on any of the terminology that you do not recognise 22 Dental Notation Notation/Dental Shorthand Palmer Notation: Primary Dentition EDCBA ABCDE EDCBA ABCDE Permanent dentition: 87654321 12345678 87654321 12345678 Notation/Dental Shorthand FDI Primary 55 54 53 52 51 61 62 63 64 65 85 84 83 82 81 71 72 73 74 75 FDI Permanent: 18 17 16 15 14 13 12 11 21 22 23 24 25 26 48 27 47 28 46 45 44 43 42 41 31 32 33 34 35 36 37 38 25 Images ref: pocketdentistry.com Different Dentitions How many dentitions are there? Image ref: family-first-dental.com Image ref: friscominimolars.com 28 Image ref: researchgate.net Why is it important to know about tooth morphology and different dentitions? Image ref: pocketdentistry.com Image ref: pocketdentistry.com Image ref: winnngsmiles.co.uk Image ref: images.frompo.com Image ref: dentistsays.com Image ref: researchgate.net 29  Image ref: pocketdentistry.com Primary dentition Also known as? How many teeth? Name the teeth Configuration in each quadrant Image ref: turbosquid.com 30  Image ref: pocketdentistry.com Permanent Dentition  Also known as?  How many teeth?  Name the teeth  Configuration in each quadrant 31 Image ref: zazzle.com How do I identify a tooth? Is it a primary or a permanent tooth? Is it an incisor, canine, premolar or molar? Is it a maxillary or mandibular tooth? If it’s an incisor, is it a central or a lateral? If it’s a premolar, is it first or second? If it’s a molar, is it first, second or third?  Resources/further reading Faculty of Medicine and Health, School of Dentistry, The Tooth Morphology Lab. Available at: dentapps.leeds.ac.uk/vlab/morphology/index.htm Basic Dental Anatomy for First Year Students. Available at: https://www.youtube.com/watch?v=eijR2mJOg0I Pocket Dentistry. Overview of the dentitions [online] Available at: https://pocketdentistry.com/15-overview-of-the-dentitions/ Real Tooth Morphology App Light Arc Studio Ltd 33