ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
In order to rebuild the decayed teeth it’s necessary to re-establish the elastic properties of lostdental tissues, replacing them with restorative materials. A not corrected reconstructive method inthe dental implant could reduce the mechanical performance causing its progressive prematurefailure. In this work composite materials, based on quartz fibers posts and adhesive resins, wereemployed with the aim to restore damaged teeth. Two groups of extracted teeth were rebuilt with twodifferent techniques. In the first group of samples (A) the fiber quartz post and the adhesive resinswere simply located into the dental implant and then cured by a light source. In the second group(B) the post and the resin were in situ preformed and then photo-cured; the pre-formed post wasthen cemented to the tooth with the same procedure of the group A. The two different types of dentalrestorations were mechanically characterized with a pull-out test with an universal testing machine(Lloyd LR10K). The experimental results showed that the B group samples have an highermechanical strength than the A group samples, evidencing a better interface adhesion between post–adhesive–tooth. The difference of means of pull out stress data was statistically confirmed by theANOVA method
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.49.130.pdf
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