Composition of a tooth Flashcards
What is another name for the neck of a tooth?
Cervical Margin
Cells which form the development of enamel?
Ameloblasts
What is the hardest substance in the body?
Enamel
What substance forms the bulk of the tooth?
Dentine
What name is given to the cells that maintain the vitality of dentine?
Odontoblasts
What does the abbreviation ADJ stand for?
Amelo Dentinal Junction
What is the protective layer of the tooth called that is a bone like material?
Cementum
What is the natural opening in the bone called which allows the nerves to pass up the root canal and into the crown?
Apical foramen
What substance can cause the pulp chamber to become smaller, gradually throughout a persons lifetime?
Secondary dentine
What is the name for the specialized tissues that both surround and support the teeth?
Periodontium
Name three signs of healthy gingivae?
Pink, firm and stippled
Name the four supporting structures of the teeth?
Gingiva, Alveolar bone, Periodontal ligament and Cementum
What measurement would you expect from a healthy gingival crevice?
1-2mm
Name three signs of unhealthy gingivae?
Red, swollen and bleeds on probing
What is the dense, compact bone next to the periodontal ligament often referred to as?
Lamina dura
