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llustration demonstrating the use of the dental key for extracting teeth. The dental key is an instrument that was used in dentistry to extract diseased teeth.Before the era of antibiotics, dental extraction was often the method of choice to treat dental infections, and extraction instruments date back several centuries.
Tooth 2. Enamel 3. Dentin 4. Dental pulp 5. cameral pulp 6. root pulp 7. Cementum 8. Crown 9. Cusp 10. Sulcus 11. Neck 12. Root 13. Furcation 14. Root apex 15. Apical foramen 16. Gingival sulcus 17. Periodontium 18. Gingiva 19. free or interdental 20. marginal 21. alveolar 22. Periodontal ligament 23. Alveolar bone 24. Vessels and nerves 25 ...
Metalsmiths, beaders, carvers, and lapidaries combine a variety of metals, hardwoods, precious and semi-precious gemstones, beadwork, quillwork, teeth, bones, hide, vegetal fibres, and other materials to create jewellery. Contemporary Native American jewellery ranges from hand-quarried and processed stones and shells to computer-fabricated ...
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On September 30, 1846, Morton performed a painless tooth extraction after administering ether to Ebenezer Hopkins Frost (1824–1866). [5] Upon reading a favorable newspaper account of this event, Boston surgeon Henry Jacob Bigelow arranged for a now-famous demonstration of ether on October 16, 1846, at the operating theatre of the ...
President Joseph Biden and his extensive challenge coin collection in the White House in 2023. Challenge coins issued by presidents date back to the late 1990s. Separately, the White House Communication Agency (WHCA) has issued challenge coins for foreign heads and military during presidential visits.
Preview is the built-in image viewer and PDF viewer of the macOS operating system. In addition to viewing and printing digital images and Portable Document Format (PDF) files, it can also edit these media types.