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dc.contributor.author
Bozzini, Carlos Eduardo Jose
dc.contributor.author
Champin, Graciela Monica
dc.contributor.author
Alippi, Rosa Maria
dc.contributor.author
Bozzini, Clarisa
dc.date.available
2017-03-21T20:15:05Z
dc.date.issued
2013-04
dc.identifier.citation
Bozzini, Carlos Eduardo Jose; Champin, Graciela Monica; Alippi, Rosa Maria; Bozzini, Clarisa; Biomechanical properties of the mandible, as assessed by bending test, in rats fed a low-quality protein; Elsevier; Archives of Oral Biology; 58; 4; 4-2013; 427-434
dc.identifier.issn
0003-9969
dc.identifier.uri
http://hdl.handle.net/11336/14138
dc.description.abstract
Objective: The present study describes the effects of feeding growing rats with diets containing increasing concentrations of wheat gluten (a low quality protein, G) on both the morphometrical and the biomechanical properties of the mandible. Design: Female rats were fed one of six diets containing different concentrations (5?30%) of G between the 30th and 90th days of life. Control rats were fed a diet containing 20% casein (C), which allows a normal growth and development of the bone. Mandibular growth was estimated directly on excised and cleaned bones by taking measurements between anatomical points. Mechanical properties of the right hemimandibles were determined by using a three-point bending mechanical test to obtain a load/deformation curve and estimate the structural properties of the bone. Bone material properties were calculated from structural and geometric properties. The left hemimandibles were ashed and the ash weight obtained. Calcium content was determined by atomic energy absorption. Results were summarised as means SEM. Comparisons between parameters were performed by ANOVA and post-test. Results: None of the G-fed groups could achieve a normal growth performance as compared to the C-fed control group. Like body size, age-related increments in mandibular weight, length, height and area (index of mandibular size) were negatively affected by the G diets, as was the posterior part of the bone (posterior to molar III). The cross-sectional geometry of the mandible (cross-sectional area and rectangular moment of inertia) as well as its structural properties (yielding load, fracture load, and stiffness) were also severely affected by the G diets. However, material properties (Young?s modulus and maximum elastic stress) and calcium concentration in ashes and the degree of mineralisation were unaffected. Conclusions: The differences in strength and stiffness between treated and control rats seemed to be the result of an induced loss of gain in bone growth and mass, in the absence of changes in the quality of the bone mineralised material.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Mandible
dc.subject
Wheat Gluten
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Casein
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Growth
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Bone Biomechanics
dc.subject.classification
Otras Ciencias de la Salud
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Ciencias de la Salud
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CIENCIAS MÉDICAS Y DE LA SALUD
dc.title
Biomechanical properties of the mandible, as assessed by bending test, in rats fed a low-quality protein
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-03-20T17:43:36Z
dc.journal.volume
58
dc.journal.number
4
dc.journal.pagination
427-434
dc.journal.pais
Países Bajos
dc.journal.ciudad
Ámsterdam
dc.description.fil
Fil: Bozzini, Carlos Eduardo Jose. Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Fisiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Champin, Graciela Monica. Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Fisiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Alippi, Rosa Maria. Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Fisiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Bozzini, Clarisa. Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Fisiología; Argentina
dc.journal.title
Archives of Oral Biology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0003996912002853
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.archoralbio.2012.08.007
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