In order to rebuild the decayed teeth it’s necessary to re-establish the elastic properties of lost
dental tissues, replacing them with restorative materials. A not corrected reconstructive method in
the dental implant could reduce the mechanical performance causing its progressive premature
failure. In this work composite materials, based on quartz fibers posts and adhesive resins, were
employed with the aim to restore damaged teeth. Two groups of extracted teeth were rebuilt with two
different techniques. In the first group of samples (A) the fiber quartz post and the adhesive resins
were 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 was
then cemented to the tooth with the same procedure of the group A. The two different types of dental
restorations 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 higher
mechanical 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 the
ANOVA method.
The effect of tissue culture on suture holding strength and degradation in canine tendon