Effect of high temperatures on teeth fixed with an orthodontic bracket. An in vitro study

González-Colmenares, Gretel; Calvo-Díaz, Liliana; Nastul-Enríquez, Marcela; Bertel-Ruíz, María Mónica; Garzón-Ramírez, Ingrid; Rojas-Sánchez, Martha Patricia; Moreno-Gómez, Freddy

doi:10.1016/j.forsciint.2020.110182

Cited by 8 publications

(3 citation statements)

References 17 publications

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“…Other factors such as the duration of heat exposure (Imaizumi, 2015; Imaizumi et al, 2014; Walker et al, 2008), the oxygenation during the burning process (Reidsma et al, 2016; van Hoesel et al, 2019; Walker et al, 2008) and the type of combustion (Imaizumi, 2015; Strydonck et al, 2010) have been shown to affect bone coloration. It has also been observed that bone and teeth burned in the presence of some metals and chemical compounds can manifest into some specific hues (e.g., green, pink, and yellow) (Dunlop, 1978; González‐Colmenares et al, 2020). This can give insights on burn environments and assist in the positive identification of an individual, helping to determine, for instance, if the individual under anthropological analysis was using any discriminatory object that was destroyed during heat exposure, such as orthodontic brackets (González‐Colmenares et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…It has also been observed that bone and teeth burned in the presence of some metals and chemical compounds can manifest into some specific hues (e.g., green, pink, and yellow) (Dunlop, 1978; González‐Colmenares et al, 2020). This can give insights on burn environments and assist in the positive identification of an individual, helping to determine, for instance, if the individual under anthropological analysis was using any discriminatory object that was destroyed during heat exposure, such as orthodontic brackets (González‐Colmenares et al, 2020). However, few studies (Dunlop, 1978; González‐Colmenares et al, 2020) have been done to investigate this particular topic which is relevant for bioanthropological analysis.…”

Section: Introductionmentioning

confidence: 99%

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The effects of exogenous substances on the color of heated bones

Rosa,

Batista de Carvalho,

Gil

et al. 2024

American Journal of Biological Anthropology

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ObjectivesBurned bone coloration has been used for decades to help in the bioanthropological analysis of burned human bones. However, there is a variety of factors that can interfere with the coloration manifested by bones exposed to heat, resulting in colors that differ from the usual black to white gradient. In this study, we evaluated possible causes of unusual coloration changes and hues in burned bone.Materials and MethodsFor that purpose, defleshed fresh pig (Sus scrofa) ribs as well as fresh and dry human clavicles were burned at four different temperatures (500, 700, 900 and 1100°C) in contact with different materials (CaO, Zn, Fe, Cu, Mn, and polyester cloth). Observable color changes were assessed through naked eye observation and description, Munsell color charts, and reflectance spectrophotometry. Additionally, chemical changes in bone were assessed using Fourier‐transform infrared spectroscopy in attenuated total reflectance (FTIR‐ATR) and x‐ray fluorescence (XRF).ResultsOur results showed that some materials did affect usual burned bone coloration (Fe, Mn, Cu, Zn) and correspondent FTIR‐ATR and XRF spectra. As for other materials, although no effect on visual bone coloration was observed, they still affected FTIR‐ATR and XRF spectra (CaO and cloth).DiscussionThis study can contribute to the anthropological analysis of burned human remains, providing some answers to what can cause unusual types of heat‐induced colorations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effects of exogenous substances on the color of heated bones

Rosa,

Batista de Carvalho,

Gil

et al. 2024

American Journal of Biological Anthropology

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“…A dental impression replicates the dental arch and being useful for dental registration [ 4 , 8 ]. Individual characteristics and the resistance to postmortem teeth alterations are currently a cornerstone for dental identification in legal dentistry [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Body Height Estimation According to Deciduous Dental Crown Height in a Peruvian Sample of Preschool Children

Pimentel-Chalco,

Carranza-Samanez,

Dulanto-Vargas

2024

International Journal of Dentistry

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Introduction. Odontometry and body height are distinctive biological traits, making their relationship relevant in the identification of individuals. The objective of this study was to estimate body height according to the height of the crown of deciduous teeth in Peruvian preschool children. Materials and Methods. This analytical study was applied to a calculated sample of 204 preschoolers between 3 and 5 years of age (34 per sex/age group) with fully erupted upper anterior deciduous teeth (from #53 to #63). Measurements included body height with a stadiometer (106 ± 6.56 cm; 94–123 cm) and crown height from canine to canine (3.06 mm in #62 to 8.13 mm in #53) in models with digital vernier (intraclass correlation coefficient ≥ 0.781). Linear regression models included calculation of the regression coefficient (β) to predict height based on crown height for each deciduous tooth at a significance level of P<0.05. Results. There was no correlation between body height and crown height by tooth type in the total sample (P≥0.05), but there was in a 3-year-old female in #52 (r = 0.4: moderate) and a 5-year-old female in #53 and #63 (r = 0.36–0.38: low) (P<0.05). Body height prediction equations are shown according to crown height per tooth and sex/age groups. The regressions were significant, explaining 13%–18% of 3-year-old females in #53 and #52 (1.85–1.86 cm error) and 5-year-old females in #53, #51, and #63 (4.61 at 4.63 cm error) (P<0.05). Conclusions. The odontology method using crown height of the upper anterior deciduous teeth estimated body height in Peruvian girls of 3 and 5 years of age. The teeth are resistant to traumatic forces so these could be used as a body height estimation parameter for forensic human identification.

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