Anatomical Landmarks of the Crown 1Crown Elevations aLobe mamelones cingulum

Anatomical landmarks of the crown 1crown elevations

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Anatomical Landmarks of the Crown: 1. Crown Elevations: a) Lobe: mamelones, cingulum, cusps. b) Tubercle: small elevation on the crown. c) Ridge: - Facially labial, buccal, and cervical ridges. - Lingually incisal, cuspal, lingual and marginal ridges. - Occlusally marginal, triangular, transverse, oblique ridges. 2. Crown Depressions : a) Developmental groove. b) Supplemental groove. c) Fissure. d) Fossa. e) Pits. f) Sulcus. 3. Other terms: Self-cleansing surfaces: that cleaned by normal functional action (facial, lingual, incisal, and occlusal) Crypt: it is the bony space in the alveolar bone containing the developing unerupted tooth. Socket: it is the bony space the alveolar bone containing the root of erupted tooth. Calcification: the organic framework of a tooth that becomes hard from calcium and phosphorous salts deposition. 4. The maxillary molar Primary cusp triangle theory: Developmentally, the occlusal surface of upper molar is formed of three major cusps called the primary cusps, any additional one called the secondary cusp. PDF created with pdfFactory Pro trial version
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