XIX National Congress
and VI International of the Spanish Society of Conservative Dentistry
17-19, May 2012
Santiago de Compostela,
Spain
Meeting Abstract
Sponsors: Sociedad Española de Odontología Conservadora (SEOC)
- Oral Presentation 1
TITLE: Clinical evaluation of
a low-shrinkage restorative system - 2 years results.
AUTHORS
Baracco, Bruno1
Perdigao, Jorge2
Ceballos, Laura3
1.-Profesor
Asociado Universidad Rey Juan Carlos
2.-Profesor
Titular Universidad de Minesota
3.-Profesora
Titular Universidad Rey Juan Carlos
SOURCE: Med Oral Patol Oral
Cir Bucal. 2012 August 1;17(Supplement2):S1.
* doi:10.4317/medoral.17643785
http://dx.doi.org/10.4317/medoral.17643785
ABSTRACT
Objectives: The aim of this study was to compare the
2-year clinical performance of three restorative systems, which included a
novel low-shrinkage composite and two bonding strategies. Methods: After
signing the appropriate informed consent, 25 patients received three Class I (occlusal) or Class II restorations performed with one of
three restorative systems: Filtek Silorane
Restorative System; Adper Scotchbond
1 XT (a 2-step total-etch adhesive) with Filtek Z250;
and Adper Scotchbond SE (a
2-step self-etch adhesive) with Filtek Z250. All
materials were applied following the manufacturer´s instructions. Two
independent observers evaluated the restorations at baseline, after 1 and 2
years, according to the USPHS modified criteria. Kruskal-Wallis
and Mann Whitney U tests were computed to compare the behavior of the
restorative systems; Friedman and Wilcoxon tests were
used to analyze the intra-system data (p<0.05). Results: The three
restorative systems performed statistically similar at 2 years. Intra-system
comparisons between baseline and 2 years showed worse marginal adaptation scores
for all the restorative systems. Marginal staining and surface roughness
parameters also recorded higher values than at baseline for Adper
Scotchbond SE + Filtek
Z250. Conclusions: Although the clinical performance of Filtek
Silorane Restorative System was demeed
acceptable after 2 years, this study did not find any advantage of the silorane-based composite over the methacrylate-based
composite, as marginal adaptation did not improve with the low-shrinkage resin.
KEYWORDS
Silorane, composite resins, clinical evaluation, polymerization shrinkage,
self-etch adhesives, total-etch-adhesives.