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This is because the calcium phosphate salts contained in them exist as electrically unstable ions (unlike calcium phosphate, the primary component of teeth). The fossilized bacteria pile up rather haphazardly, while free-floating ionic components (calcium phosphate salts) fill in the gaps.
Calcification can manifest itself in many ways in the body depending on the location. In the pulpal structure of a tooth, calcification often presents asymptomatically, and is diagnosed as an incidental finding during radiographic interpretation. Individual teeth with calcified pulp will typically respond negatively to vitality testing; te
Pulp stones are discrete calcifications found in the pulp chamber of the tooth which may undergo changes to become diffuse pulp calcifications such as dystrophic calcification. [2] They are usually noticed by radiographic examination and appeared as round or ovoid radiopaque lesions. [ 3 ]
Essential nutrients for a healthy tooth include calcium, phosphorus, and vitamins A, C, and D. [54] Calcium and phosphorus are needed to properly form the hydroxyapatite crystals, and their levels in the blood are maintained by Vitamin D. Vitamin A is necessary for the formation of keratin, as Vitamin C is for collagen. Fluoride, although not a ...
Since teeth eruption follows a pattern, with the eruption of deciduous teeth occurring after birth to the end of infancy at the age of two, and permanent teeth erupting between the ages of five and fourteen, [7] observing which teeth are erupted and developing in a mandible, or whether a tooth is deciduous or permanent in isolated remains, can ...
Cross-section of a tooth. B is dentin. Dentin (/ ˈ d ɛ n t ɪ n / DEN-tin) (American English) or dentine (/ ˈ d ɛ n ˌ t iː n / DEN-teen or / ˌ d ɛ n ˈ t iː n / DEN-TEEN) (British English) (Latin: substantia eburnea) is a calcified tissue of the body and, along with enamel, cementum, and pulp, is one of the four major components of teeth.
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Some experts also agree on a third type of cementum, afibrillar cementum, which sometimes extends onto the enamel of the tooth. The excessive buildup of cementum on the roots of a tooth is a pathological condition known as hypercementosis. Cementum thickness can increase on the root end to compensate for attritional wear of the occlusal/incisal ...