Tooth Morphology Workbook 1 PDF

DENTAL HYGIENE & DENTAL THERAPY Tooth Morphology Workbook 1 Teamwork Improving Kindness Safety Student name: 1  DENTAL HYGIENE & DENTA...

DENTAL HYGIENE & DENTAL THERAPY Tooth Morphology Workbook 1 Teamwork Improving Kindness Safety Student name: 1  DENTAL HYGIENE & DENTAL THERAPY Introduction This handbook is to be used in conjunction with your sessions on Dentitions/Tooth Morphology. You will need to complete the workbook to meet the intended learning outcomes: By the end of this session students should be able to:  Recognise the basic structure of a tooth and it’s surrounding tissues  List the functions of the teeth  Revise the various dental notations of primary and secondary teeth used clinically  Describe the terminology used in tooth morphology in order to recognise various landmarks on the tooth surface 2  DENTAL HYGIENE & DENTAL THERAPY Complete the table: Structure of a tooth- refer to Different Dentitions session for answers Structure Location  Describe the structure  What is it’s function? Dentine Forms bulk of Forms the bulk of the tooth; it is tough, slightly elastic and yellow in colour. tooth, located in Unlike enamel it is capable of reacting to injury and stimuli. the area between It can repair itself by laying down a tertiary layer. the enamel and the Function: Provides support to the enamel and protects the pulp from anything potentially harmful. pulp Found in the space between the root and the bony socket A tough fibrous layer of connective tissue covering the bone of the upper and lower jaws. Enamel Found covering the root Embedded within the dentine walls. 3  DENTAL HYGIENE & DENTAL THERAPY Label the diagram using the following (drag and drop into place): Enamel Crown Dentine Gingivae Neck e Pulp chamber Cementum Root Periodontal ligament Root canal Bone Ima ge ref: lumenlearning.com ref|umenlearning.com 4  DENTAL HYGIENE & DENTAL THERAPY Dental Terminology- please complete the blanks. Continue to add to this as you come across new words. Abrasion The physical wearing away of tooth substance Alignment To arrange in a line Alveolar process The bone of the maxilla and mandible that supports the teeth Apex The tip of the root Apical foramen Opening at the apex, through which blood, nerve and lymph pass Atrophy The wasting away of tissue Attrition Wearing down of the occlusal an incisal surfaces through use Bifurcation The point at which two roots divide Canine The third tooth from the midline, used for gripping Cervical Pertaining to the neck of the tooth 5  DENTAL HYGIENE & DENTAL THERAPY Cingulum Lingual or palatal lobe found on incisor teeth Cusp A peak on the occlusal surfaces of teeth Cusp of Carabelli An extra cusp found on the mesio-palatal surface of first maxillary permanent molars in 50-75% of people Contact point Where two teeth meet to form an interproximal area Deciduous Old term for primary dentition Developmental groove Linear indentations which divide the cusps. Formed during the development of the crown Diastema Spacing between the teeth, most commonly seen between the upper central incisors Disto-incisal angle The point where the distal and incisal edges meet Embrasure (Spillway) The space formed where teeth diverge from the contact points Eminence General term for a protuberance or bulge Eruption Process where teeth appear through the gingivae to take their place in the mouth Fissure A fault caused through the imperfect joining of the developmental lobes - found usually on occlusal or buccal surfaces 6  DENTAL HYGIENE & DENTAL THERAPY Fossa A shallow depression Foramen A small opening through which pass blood and nerve vessels Pulp horn A projection of pulp towards the cusp or incisal edge Incisor First and second teeth from the midline. Used for cutting Incisal edge Biting edge of the incisors Interdental/interproximal The space between the contact areas and the interdental bone Labial Pertaining to the lips Lingual Pertaining to the tongue Malocclusion Abnormal occlusion of the teeth Mamelons Rounded protuberances on newly erupted teeth Marginal ridge Enamel ridges at the mesial and distal edges of the teeth Mastication Act of chewing 7  DENTAL HYGIENE & DENTAL THERAPY Mesio-incisal angle The point where the mesial and incisal edges meet Molar The sixth, seventh and eighth permanent tooth from the midline Oblique ridge A ridge that runs obliquely across the occlusal surfaces of maxillary molars Occlusal The biting surface Occlusion Relationship of upper and lower teeth when jaws are closed together Palatal Pertaining to the palate Periodontal Surrounding the tooth Pit A small pointed depression found at the junction of two or more developmental grooves Pulp Vital part of the tooth contained in the pulp chamber Ridge A linear elevation on the surface of a tooth Root trunk The part of the root between the cervix and the point of separation of the roots Transverse ridge Ridge that descends from the cusp tip to the central part of the occlusal surface 8  DENTAL HYGIENE & DENTAL THERAPY Trifurcation Point of division of three roots Tubercle Rounded elevation on the surface of the crown. Often a deviation from the norm Recap on dental notation Fill the spaces to denote the correct notation: 9  DENTAL HYGIENE & DENTAL For Palmer notation you may use UR, LL etc. THERAPY Tooth type Palmer notation FDI notation Primary mandibular right first molar LRD 84 Permanent maxillary left lateral incisor UL2 22 Secondary mandibular left second premolar LL5 35 Primary maxillary right second incisor URB 52 Deciduous maxillary left second molar ULE 65 Secondary mandibular right third molar LR8 48 Permanent maxillary left first molar UL6 26 10 DENTAL HYGIENE & DENTAL THERAPY 11 DENTAL HYGIENE & DENTAL THERAPY 12