Original PubMed abstract — English. No translation or clinical interpretation.
Authors
Pouran Samimi; Mehrdad Kazemian; Farinaz Shirban; Samane Alaei; Maryam Khoroushi
Publication details
Journal of conservative dentistry : JCD · 2018 · Vol. 21 · No. 4 · Pages/article no. 350-353
Publication date (as recorded): 2017-12-31
PMID: 30122811
Abstract (original)
The main aim of restorative dentistry is to restore and preserve dental health with the use of appropriate restorative modalities to protect the pulp and restore its function. This study compared the effect of different surface treatments of mineral trioxide aggregate (MTA) on the bond strength of composite resin to MTA. BACKGROUND BACKGROUND
Forty cylindrical acrylic blocks with a hole were prepared and filled by ProRoot MTA. The samples were assigned to four groups: Group 1 — no surface treatment; Group 2 — phosphoric acid etching; Group 3 — sandblasting; and Group 4 — hydrofluoric acid (HF) etching, rinsing, and silane application. OptiBond Solo Plus adhesive was utilized in all the groups. Then, composite resin cylinders were bonded to sample surfaces. The samples were thermocycled and tested for microshear bond strength using a universal testing machine at a crosshead speed of 1 mm/min. Data were analyzed with Kruskal-Wallis and Mann-Whitney tests. Scanning electron microscopy images were prepared for each study group after surface treatments. MATERIALS AND METHODS METHODS
Means and standard deviations of bond strength values in study groups 1-4 were 14.83 ± 7.76, 21.85 ±7.99, 6.48 ± 3.89, and 26.01 ± 11.09 Mpa, respectively. RESULTS RESULTS
Within the limitations of this study, phosphoric acid etching or HF etching plus silanization was preferred to surface treatment of MTA before composite resin bonding. CONCLUSIONS CONCLUSIONS
Source: https://pubmed.ncbi.nlm.nih.gov/30122811/
