Abstract
Systemic vomiting resulting from mental disorders and the high intake of acidic beverage in industrial societies result in a relatively elevated frequency of dental corrosion. In the past, however, this type of chemical dental wear was rather rare. Here we describe the case of a 3-year-old child dated to 1470±30BP from the archaeological site of Pedra do Cachorro (northeastern Brazil) that presents a unique pattern of chemical wearing compatible with dental corrosion. We integrate this observation with a broader characterization of buccal health including caries, periapical lesions, dental calculus and periodontal bone resorption. Osteological markers of physiological imperilments such as linear enamel hypoplasia (LEH) and transverse radiopaque lines (Harris lines) are also considered.
Highlights
Reflux, frequent vomiting, and the high intake of acidic beverages in industrial societies result in a relatively elevated frequency of dental corrosion
Corrosion/ old child radiometrically dated to 1,470 ± 30 BP, biocorrosion can be divided into four (4) separate that was exhumed from an archaeological site locategories: exogenous, endogenous, proteolysis cated in northeastern Brazil
This child presents a, and electrochemical
Summary
2020 │ Volume 33 │ Issue 02 such as clenching and grinding of teeth (bruxism) “dental erosion”) is more common in industrial are very common in modern societies, and might societies (Robb et al, 1991a, 1991b). Corrosion/ old child radiometrically dated to 1,470 ± 30 BP, biocorrosion can be divided into four (4) separate that was exhumed from an archaeological site locategories: exogenous, endogenous, proteolysis cated in northeastern Brazil. This child presents a (degradation of the small amount of enamel pro- unique pattern of chemical wear that was compatitein in the caries process), and electrochemical Dentin, cementum, and bone, occurs when the local was uncovered in 2015 at the Pedra do Cachorro pH is 5.5 or below, whereas the critical pH for sol- archaeological site, located in the Parque Nacional ubilization of fluorapatite is 4.5 or below (Ekstrand do Catimbau, Pernambuco, Brazil (Figure 1). Each remaining permanent tooth in the mandible was scored according to the incremental formation
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