http://www.cnr.it/ontology/cnr/individuo/prodotto/ID31867

Biomechanical effects of titanium implants with full arch (Articolo in rivista)

Type

Label

Biomechanical effects of titanium implants with full arch (Articolo in rivista) (literal)

Anno

Alternative label

Roberto De Santis, Francesco Mollica, Fernando Zarone, Luigi Ambrosio, Luigi Nicolais (2007)
Biomechanical effects of titanium implants with full arch
in Acta biotechnologica
(literal)

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Roberto De Santis, Francesco Mollica, Fernando Zarone, Luigi Ambrosio, Luigi Nicolais (literal)

Pagina inizio

Pagina fine

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Rivista

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Rivista ISI: Acta Biomaterialia ACTA BIOMATER Cod. ISSN 1742-7061 I.F. 2,132 Attenzione. Manca il codice della rivista Acta Biomaterialia nell'allegato 1 (per procedere nell'inserimento dati e' stato usato il codice Acta Biothecnologia). (literal)

Note

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Institute for Composite and Biomedical Materials, National Research Council, Piazzale Tecchio 80, 80125 Napoli, Italy. Francesco Mollica, Department of Engineering, University of Ferrara, Via Saragat 1, 44100 Ferrara, Italy. Fernando Zarone, Department of Dental and Maxillofacial Sciences, University of Naples Federico II, Via Pansini 5, 80131 Napoli, Italy (literal)

Titolo

Abstract

A composite model of the mandible, constituted by an inner polymeric core and a glass fibre reinforced outer shell, has been developed and equipped with six ITI titanium implants and a full gold alloy arch bridge prosthesis. The effects of this oral rehabilitation on the biomechanics of the mandible are investigated through a simulation of the lateral component of the pterygoid muscles. These muscles are involved as the mouth is opened and closed, hence their activity is very frequent. An increase of the mandible stiffness due to the prosthesis is observed; moreover, the coupling of the relatively stiff rehabilitation devices with the natural tissue analogue leads to stressshielding and stress-concentration in the incisal and molar regions, respectively. Although the amplitude of the force generated by pterygoid muscles is quite small, high strains over the incisal region are measured. A stress-shielding effect, of about 20%, is observed at the symphysis as the full arch bridge prosthesis is fixed on the implants. Therefore, the presence of the prosthesis leads to significant modification of the stress field experienced by the mandible, and this may be relevant in relation to the biomechanics of mandibular bone remodelling. (literal)

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