Ameloblast Study guides, Class notes & Summaries

HOSA Dental Terminology Latest 2024 100% Correct Maximum Permissible Dose (MPD) highest rate of radiation exposure Roentgen (R) basic unit of exposure to radiation; C/kg Rad (radiation absorbed dose) unit of absorbed radiation; Gy Rem (roentgen equivalent measure) unit of radiation needed to produced same biological effect of one R; Sv Erythema Dose radiation overdose that produces redness of the skin Dosimeter device to measure the amount of stray/secondary radiation Le...

HOSA Dental Terminology (2022/2023) Rated A+ Maximum Permissible Dose (MPD) highest rate of radiation exposure Roentgen (R) basic unit of exposure to radiation; C/kg Rad (radiation absorbed dose) unit of absorbed radiation; Gy Rem (roentgen equivalent measure) unit of radiation needed to produced same biological effect of one R; Sv Erythema Dose radiation overdose that produces redness of the skin Dosimeter device to measure the amount of stray/secondary radiation Lead Barriers, Shields de...

The tissue(s) that have nerve innervations are a. Dentin b. Pulp and dentin c. Pulp and periodontal ligaments d. Cementum e. All of the above : c. Pulp and periodontal ligaments Free, unmyelinated nerve endings of the pulp can sense: a. hot b. cold c. pressure d. pain e. all of above : d. pain The free unmyelinated nerve endings of the pulp tissue can sense pain only. It cannot distinguish between hot or cold. It cannot distinguish the sensation of pressure. All 2 | P...

The midface and all structures of the oral cavity except the posterior part of the tongue develop from the: - ANSWERFrontal Process and first branchial arch. The formation of an ameloblast from cells of inner enamel epithelium is an example of: A. histodifferentiation B. morphodifferentiation C. odontogenesis D. dental Lamina E. dentinogenesis - ANSWERA. histodifferentiation Which structure becomes the dentinoenamel junction of the fully formed tooth? A. Outer enamel epithelium B. S...

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - ANSWER A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outli...

CTB 21 Exam Questions & Answers 2023/2024 step 1 of amelogenesis - ANSWER-bell stage of tooth development once dentine is formed will send signal to IEE cells to become ameloblast = cells will become taller and begin secreting the enamel matrix = it is partially mineralised(30% mineral content) = roles enamel layer ameoloblast produce the 1st layer of enamel, they begin to move away from the dentine step 2 ameolgenesis - ANSWER-enamel because fully mineralised (96%)= fully mature, o...

What is enamel? -ANSWER Hardest calcified/mineralized tissue in the human body Covers Anatomical crown What is the blood supply of enamel? -ANSWER Avascular and non-vital (has no nerves) What is the material makeup of enamel? -ANSWER 96% inorganic (mineralized) material - mainly calcium hydroxyapatite 3% water 1% organic - enamelin (protein component) What color is enamel? -ANSWER It is grayish/bluish white but appears slightly yellow b/c its translucent and the underlying dentin is ...

Maximum Permissible Dose (MPD) - ANSWER highest rate of radiation exposure Roentgen (R) - ANSWER basic unit of exposure to radiation; C/kg Rad (radiation absorbed dose) - ANSWER unit of absorbed radiation; Gy Rem (roentgen equivalent measure) - ANSWER unit of radiation needed to produced same biological effect of one R; Sv Erythema Dose - ANSWER radiation overdose that produces redness of the skin Dosimeter - ANSWER device to measure the amount of stray/secondary radiation Lead...

Maximum Permissible Dose (MPD) - ANSWER highest rate of radiation exposure Roentgen (R) - ANSWER basic unit of exposure to radiation; C/kg Rad (radiation absorbed dose) - ANSWER unit of absorbed radiation; Gy Rem (roentgen equivalent measure) - ANSWER unit of radiation needed to produced same biological effect of one R; Sv Erythema Dose - ANSWER radiation overdose that produces redness of the skin Dosimeter - ANSWER device to measure the amount of stray/secondary radiation Lead...

The tissue(s) that have nerve innervation are: a. Dentin b. Pulp and dentin c. Pulp and periodontal ligament d. Cementum e. All of the above - C. The pulp and the periodontal ligament have nerve innervation. The free unmyelinated nerve endings of the pulp can sense: a. Hot b. Cold c. Pressure d. Pain e. All of the above - D. The free unmyelinated nerve endings of the pulp tissue can sense pain only. It cannot distinguish between hot or cold. It cannot distinguish the sensation...