Dental and Orofacial Anatomy Questions & Answers(RATED A)

Tooth Function -ANSWER Teeth aid in digestion Bite and tear food Aid in speech crown is covered by -ANSWER enamel root is covered by -ANSWER cementum enamel -ANSWER hard, outermost layer of a tooth Hardest substance in the body Thick in the top and thin in the bottom resistant to wear and tear cementum of tooth -ANSWER hard connective tissue fastens tooth securely in the socket pulp -ANSWER soft tissue within a tooth, containing nerves and blood vessels CEJ (cementoenamel junction) -ANSWER Where enamel of crown and cementum of root meet the crown -ANSWER portion of the tooth erupts through, the bone and tissue cervical line -ANSWER where the anatomical crown and root join Anatomical crown -ANSWER Portion of the tooth that is covered with enamel above cej Clinical crown -ANSWER That portion of the tooth that is visible in the oral cavity Eruption of tooth -ANSWER is the moving of that tooth through its surrounding tissues Deciduous or primary tooth Calcification starts around 4th month of fetal bifurcation -ANSWER division into two segments trifurcation -ANSWER division of root into 3 segments alveolar process -ANSWER Portion of the maxillary bones that form the support for teeth of the maxillary arch alveolus -ANSWER the bony socket Tooth Tissues -ANSWER enamel, dentin, cementum, pulp (soft) Dentin -ANSWER Forms the main portion or body of tooth Hard dense, calcified Yellow in color 70% inorganic matter, 30% organic matter + water Where Dentin located -ANSWER underneath enamel and cementum cementum of tooth -ANSWER Less durable than dentin or enamel thin at cervical line, thicker at apex It is more dense than bone DCJ is the i