The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?

Over the last century, humans from industrialized societies have witnessed a radical increase in some dental diseases. A severe problem concerns the loss of dental materials (enamel and dentine) at the buccal cervical region of the tooth. This "modern-day" pathology, called non-carious cer...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Stefano Benazzi, Huynh Nhu Nguyen, Dieter Schulz, Ian R Grosse, Giorgio Gruppioni, Jean-Jacques Hublin, Ottmar Kullmer
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/01fe99227a204d1dba141673ce81e5f0
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:01fe99227a204d1dba141673ce81e5f0
record_format	dspace
spelling	oai:doaj.org-article:01fe99227a204d1dba141673ce81e5f02021-11-18T07:47:58ZThe evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?1932-620310.1371/journal.pone.0062263https://doaj.org/article/01fe99227a204d1dba141673ce81e5f02013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23638020/?tool=EBIhttps://doaj.org/toc/1932-6203Over the last century, humans from industrialized societies have witnessed a radical increase in some dental diseases. A severe problem concerns the loss of dental materials (enamel and dentine) at the buccal cervical region of the tooth. This "modern-day" pathology, called non-carious cervical lesions (NCCLs), is ubiquitous and worldwide spread, but is very sporadic in modern humans from pre-industrialized societies. Scholars believe that several factors are involved, but the real dynamics behind this pathology are far from being understood. Here we use an engineering approach, finite element analysis (FEA), to suggest that the lack of dental wear, characteristic of industrialized societies, might be a major factor leading to NCCLs. Occlusal loads were applied to high resolution finite element models of lower second premolars (P2) to demonstrate that slightly worn P2s envisage high tensile stresses in the buccal cervical region, but when worn down artificially in the laboratory the pattern of stress distribution changes and the tensile stresses decrease, matching the results obtained in naturally worn P2s. In the modern industrialized world, individuals at advanced ages show very moderate dental wear when compared to past societies, and teeth are exposed to high tensile stresses at the buccal cervical region for decades longer. This is the most likely mechanism explaining enamel loss in the cervical region, and may favor the activity of other disruptive processes such as biocorrosion. Because of the lack of dental abrasion, our masticatory apparatus faces new challenges that can only be understood in an evolutionary perspective.Stefano BenazziHuynh Nhu NguyenDieter SchulzIan R GrosseGiorgio GruppioniJean-Jacques HublinOttmar KullmerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e62263 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Stefano Benazzi Huynh Nhu Nguyen Dieter Schulz Ian R Grosse Giorgio Gruppioni Jean-Jacques Hublin Ottmar Kullmer The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
description	Over the last century, humans from industrialized societies have witnessed a radical increase in some dental diseases. A severe problem concerns the loss of dental materials (enamel and dentine) at the buccal cervical region of the tooth. This "modern-day" pathology, called non-carious cervical lesions (NCCLs), is ubiquitous and worldwide spread, but is very sporadic in modern humans from pre-industrialized societies. Scholars believe that several factors are involved, but the real dynamics behind this pathology are far from being understood. Here we use an engineering approach, finite element analysis (FEA), to suggest that the lack of dental wear, characteristic of industrialized societies, might be a major factor leading to NCCLs. Occlusal loads were applied to high resolution finite element models of lower second premolars (P2) to demonstrate that slightly worn P2s envisage high tensile stresses in the buccal cervical region, but when worn down artificially in the laboratory the pattern of stress distribution changes and the tensile stresses decrease, matching the results obtained in naturally worn P2s. In the modern industrialized world, individuals at advanced ages show very moderate dental wear when compared to past societies, and teeth are exposed to high tensile stresses at the buccal cervical region for decades longer. This is the most likely mechanism explaining enamel loss in the cervical region, and may favor the activity of other disruptive processes such as biocorrosion. Because of the lack of dental abrasion, our masticatory apparatus faces new challenges that can only be understood in an evolutionary perspective.
format	article
author	Stefano Benazzi Huynh Nhu Nguyen Dieter Schulz Ian R Grosse Giorgio Gruppioni Jean-Jacques Hublin Ottmar Kullmer
author_facet	Stefano Benazzi Huynh Nhu Nguyen Dieter Schulz Ian R Grosse Giorgio Gruppioni Jean-Jacques Hublin Ottmar Kullmer
author_sort	Stefano Benazzi
title	The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
title_short	The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
title_full	The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
title_fullStr	The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
title_full_unstemmed	The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
title_sort	evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/01fe99227a204d1dba141673ce81e5f0
work_keys_str_mv	AT stefanobenazzi theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT huynhnhunguyen theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT dieterschulz theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT ianrgrosse theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT giorgiogruppioni theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT jeanjacqueshublin theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT ottmarkullmer theevolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT stefanobenazzi evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT huynhnhunguyen evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT dieterschulz evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT ianrgrosse evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT giorgiogruppioni evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT jeanjacqueshublin evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation AT ottmarkullmer evolutionaryparadoxoftoothwearsimplydestructionorinevitableadaptation
_version_	1718422890299260928

The evolutionary paradox of tooth wear: simply destruction or inevitable adaptation?

Ejemplares similares