Dental Nursing - Unit 304 - Dental and regional anatomy M Terms in this set (105) 1 How many roots does a permanent or deciduous incisor tooth have? Cingulum Plateau What is the palatal or lingual raised area on a central incisor called? Chisel-shap

Dental Nursing - Unit 304 - Dental and regional anatomy M Terms in this set (105) 1 How many roots does a permanent or deciduous incisor tooth have? Cingulum Plateau What is the palatal or lingual raised area on a central incisor called? Chisel-shaped What shape is the crown of an incisor? Canine Which tooth has the longest root of all the teeth? 1 How many roots does a canine have? Premolars What teeth aren't present in primary dentition? First premolars Which teeth replace the deciduous first molars? Premolars Which teeth have two cusps? 2 How many roots in an upper premolar? Premolars Which teeth has a canine fossa? Second premolar Which tooth replaces the deciduous second molar? 1 How many roots in a lower premolar? Permanent first molars Which teeth are the largest? 4 How many cusps are there in upper molar teeth? Lower first molars Which teeth have five cusps? Cusp of Carabelli What is the fifth cusp of an upper first molar called? 3 How many roots does an upper molar have? 2 How many roots does a lower molar have? Deciduous Which teeth have larger pulp chambers? Deciduous Which teeth are whiter in appearance? 20 How many teeth are there in deciduous dentition? 32 How many teeth are there in permanent dentition? Deciduous Which teeth has thinner enamel? Dental Nursing - Unit 304 - Dental and regional anatomy Prisms How are the crystals in enamel arranged? Amelodentinal Junction (ADJ) What is the junction between the enamel and dentine called? Ameloblast Cells What is enamel formed by before eruption? Calcium Hydroxyapatite crystals What is dentine made up of? Dentine What is composed of hollow tubes? Odontoblast cells Cells lie along the inner edge of the pulp chamber Secondary Dentine Dentine that forms after eruption and continues at a very slow rate throughout the life of the tooth Fibrils Sensory nerve endings within dentine Yellow Colour of dentine Cementoblasts Cells that form cementum Dentinocemental Junction The point where the cementum and the root dentine are in contact Cementum Material covering the tooth root and attaches to the periodontal ligaments Pulp Sensory nerves and blood vessels Apical Foramen Where the pulp tissues/nerves enter the tooth Pulp Chamber contains the pulp and is located in the crown of the tooth Furcation junction where multiple roots join the neck of the tooth Periodontal Ligament Connective tissue attachment between the tooth and the alveolar bone Free gingival fibres Run from the cervical cementum into the gingival papillae; maintain the gingival cuff around each tooth Gingival crevice Shallow space of less than 3mm between tooth surface and the gingival margin Alveolar Crest Fibres Runs from the alveolar bone crest to the cementum at the next of the tooth Horizontal Fibres Runs horizontally from the alveolar bone to the cementum Oblique Fibres Runs at an angle from the alveolar bone down to the cementum Apical Fibres Occurs at the root apex between the bone and cementum Transseptal Fibres Runs between the cementum of adjacent teeth interdentally Temporal Bone bone that forms parts of the side of the skull and floor of the cranial activity. There is a right and left temporal bone. Zygomatic Arch cheek bone; point of attachment for masseter hard palate anterior portion, supported by bone soft palate posterior portion, not supported by bone Dental Nursing - Unit 304 - Dental and regional anatomy Rugae ridges on the hard palate Tuberosity The back end of the alveolar process that houses the sockets of the upper wisdom teeth Cleft Palate a congenital split in the roof of the mouth maxillary sinus sinus on either side of the nasal cavity below the eyes oropharynx central portion of the pharynx between the roof of the mouth and the upper edge of the epiglottis Coronoid Process The frontal raised point at the top of the mandible; where the temporalis and masseter attaches Ramus Verticle body of the mandible Body Horizontal section of the mandible Lamina Dura thin compact bone that lines the alveolar socket Cancellous Bone spongy, porous, bone tissue in the inner part of a bone Alveolar Process Ridge of the maxillary bone that form the support for teeth of the maxillary arch Oral Mucosa mucous membrane lining the oral cavity Philtrum vertical groove on the midline of the upper lip Fraenum A thin line of soft tissue that runs between the lips and the gums. Another fraenum is also present underneath the tongue to the floor of the mouth. Trismus This is when the muscles of mastication spasm and cause the jaws ability to open to reduce. Clicking This is caused when the disk inside the joint shifts which can create a clicking, popping or grating noise. Crepitus This is normally caused by a tear in the disc or posterior attachment which makes the bone-to-bone contact between the joint socket of the glenoid fossa and the mandibular condyle. This is usually a sign of advanced TMJ damage. Buccinator Attached above and below the outer surface of the alveolar process; compresses the cheek against the molar teeth to stop them from getting bitten during mastication and also keeps contained in the centre of the oral cavity. Temporalis elevates and retracts mandible; side to side movement Dental Nursing - Unit 304 - Dental and regional anatomy Masseter prime mover of jaw closure Orbicular Oris Main muscle around mouth ; creates movement of the lips and facilitates speech and facial expressions. Inferior Dental Nerve Which nerve supplies sensation to all lower teeth? Lingual Nerve Which nerve supplies sensation to the lingual tissues of all lower teeth Long Buccal Nerve Which nerve supplies the buccal tissues of the lower 876/678? Mental Nerve Affects the lower lip, chin and labial gingiva on the 12345 Anterior Superior Dental Nerve Which nerve supplies sensation to the upper central incisors? Middle Superior Dental Nerve Supplies sensation to the upper 45 and mesial of 6 Posterior Superior Dental Nerve Supplies to 87 and distal of 6 Nasopalatine Nerve palatal tissues of 321/123 Greater Palatine Nerve Palatal tissues of 87654/45678 V Trigeminal Nerve VII Facial Nerve IX Glossopharyngeal Nerve Dental Nursing - Unit 304 - Dental and regional anatomy Condyle A smooth, rounded articular process coronoid process of mandible Flattened upward projection from the anterior margin of the mandibular ramus. Where the Temporalis and Masseter attach. ramus of mandible vertical part of mandible sigmoid notch The depression between the coronoid and condyloid processes Parotid Gland - largest salivary gland - within the cheek Stenson's Duct The excretory duct of the parotid gland submandibular gland a salivary gland inside the lower jaw on either side that produces most of the nocturnal saliva Sublingual Gland salivary gland under the tongue, smallest Wharton's duct The excretory duct of the submandibular gland Ducts of Rivinus route to the mouth of saliva from the sublingual glands. Aging Alters saliva production often causing xerostomia Mumps Swelling of parotid glands which affects saliva production and difficulty eating. Mucocele mucous cyst that can disrupt secretion of saliva and cause swelling to the glands Dental Nursing - Unit 304 - Dental and regional anatomy Salivary Stone Can block gland ducts which stops flow of saliva and causes pain