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Influence of masticatory hypofunction on the alveolar bone and the molar periodontal ligament space in the rat maxilla

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Influence of masticatory hypofunction on the alveolar bone and the molar periodontal ligament space in the rat maxilla

Auteurs : Balazs J. Denes [Suisse] ; Anestis Mavropoulos [Suisse] ; Andrea Bresin [Suède] ; Stavros Kiliaridis [Suisse]

Source :

European Journal of Oral Sciences [ 0909-8836 ] ; 2013-12.

RBID : ISTEX:26BC2E2DF4518B2F9CEB3FEBFF7C001D829BBF99

English descriptors

Abstract

Previous studies have established that complete absence of masticatory function results in a narrower alveolar process and periodontal ligament (PDL). The aim of our study was to investigate, for the first time, both the alveolar process and the PDL in masticatory hypofunction. Twenty‐six rats, 3 wk of age, were randomly assigned to either a hard‐ or a soft‐diet group (n = 13 each group). The rats were killed after 6 wk and their skulls were scanned using micro‐computed tomography (micro‐CT). We measured the cross‐sectional width of the space occupied by the PDL, as well as the cross‐sectional alveolar socket surface (AS) and the cross‐sectional root surface (RS). We also measured the width of the alveolar process. The alveolar process was narrower, the PDL width was thinner, and the AS was smaller in rats fed a soft diet compared with rats fed a hard diet. The PDL width was correlated to the alveolar process width and the AS. The narrower alveolar process found in rats fed a soft diet is the result of alterations to both the alveolar bone and the PDL. The correlation between them provides evidence that a reduction of occlusal loading induces a simultaneous response in both tissues.

Url:

https://api.istex.fr/document/26BC2E2DF4518B2F9CEB3FEBFF7C001D829BBF99/fulltext/pdf

DOI: 10.1111/eos.12092

Affiliations:

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alveolar</term>
<term>Alveolar bone</term>
<term>Alveolar process</term>
<term>Alveolar process width</term>
<term>Alveolar socket</term>
<term>Alveolar socket surface</term>
<term>Alveolar width</term>
<term>Apical</term>
<term>Apical level</term>
<term>Biol</term>
<term>Blood vessels</term>
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<term>Buccal side</term>
<term>Cervical</term>
<term>Cervical apical</term>
<term>Cervical level</term>
<term>Diet groups</term>
<term>Functionless</term>
<term>Functionless teeth</term>
<term>Hard diet</term>
<term>Higher occlusal forces</term>
<term>Hypofunction</term>
<term>Hypofunctional</term>
<term>Hypofunctional model</term>
<term>Hypofunctional teeth</term>
<term>Ligament</term>
<term>Mandible</term>
<term>Masticatory</term>
<term>Masticatory forces</term>
<term>Masticatory function</term>
<term>Masticatory hypofunction</term>
<term>Method error</term>
<term>Molar</term>
<term>Molar region</term>
<term>Narrower alveolar process</term>
<term>Occlusal</term>
<term>Occlusal forces</term>
<term>Occlusal hypofunction</term>
<term>Occlusal loading</term>
<term>Palatal</term>
<term>Palatal side</term>
<term>Periodontal</term>
<term>Periodontal ligament</term>
<term>Polygon tool</term>
<term>Rat</term>
<term>Resorption</term>
<term>Root size</term>
<term>Root surface</term>
<term>Socket</term>
<term>Soft diet</term>
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<term>Alveolar process width</term>
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<front><div type="abstract">Previous studies have established that complete absence of masticatory function results in a narrower alveolar process and periodontal ligament (PDL). The aim of our study was to investigate, for the first time, both the alveolar process and the PDL in masticatory hypofunction. Twenty‐six rats, 3 wk of age, were randomly assigned to either a hard‐ or a soft‐diet group (n = 13 each group). The rats were killed after 6 wk and their skulls were scanned using micro‐computed tomography (micro‐CT). We measured the cross‐sectional width of the space occupied by the PDL, as well as the cross‐sectional alveolar socket surface (AS) and the cross‐sectional root surface (RS). We also measured the width of the alveolar process. The alveolar process was narrower, the PDL width was thinner, and the AS was smaller in rats fed a soft diet compared with rats fed a hard diet. The PDL width was correlated to the alveolar process width and the AS. The narrower alveolar process found in rats fed a soft diet is the result of alterations to both the alveolar bone and the PDL. The correlation between them provides evidence that a reduction of occlusal loading induces a simultaneous response in both tissues.</div>
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Influence of masticatory hypofunction on the alveolar bone and the molar periodontal ligament space in the rat maxilla

Influence of masticatory hypofunction on the alveolar bone and the molar periodontal ligament space in the rat maxilla

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri