Variability of mechanical properties of collagen membranes used in dentistry

Loredana Santo, Fabrizio Quadrini, Denise Bellisario, Antonella Polimeni, Anna Santarsiero

Research output: Contribution to journalArticlepeer-review


The aim of this study is proposing a combination of measurements to assess the functional variability of collagen membranes used in Guided Bone Regeneration (GBR) and Guided Tissue Regeneration (GTR) techniques. As far as clinical applications are concerned, a proper qualification is critical when deciding, among commercially available collagen membranes, upon the most appropriate one for each specific clinical case. Two commercially available collagen membranes, namely Collprotect® and Jason®, were considered for the experimentation. After thickness and density measurements, the quasi-static behavior was studied for both membranes by means of conventional mechanical tests, i.e. tear and tensile tests, whereas their time-dependent behavior was evaluated by means of stress relaxation tests and dynamic mechanical analysis. Collagen membranes showed an elevated among samples variability. The variability within the same kind of membrane is of the same order of magnitude of the between membrane kinds variability. All the membranes showed strong time dependence both in stress relaxation and in dynamic mechanical tests. This fact should be taken under consideration for the membrane final application.

Original languageEnglish
Pages (from-to)488-493
Number of pages6
JournalMateriale Plastice
Publication statusPublished - Dec 1 2018


  • Collagen
  • Guided bone regeneration
  • Guided tissue regeneration
  • Membrane barrier; mechanical properties
  • Thickness

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry


Dive into the research topics of 'Variability of mechanical properties of collagen membranes used in dentistry'. Together they form a unique fingerprint.

Cite this