Effect of Cyclic Loading on Marginal Adaptation and Bond Strength in Direct vs Indirect Class II MO Composite Restorations

2008 ◽  
Vol 33 (5) ◽  
pp. 587-592 ◽  
Author(s):  
V. Aggarwal ◽  
A. Logani ◽  
V. Jain ◽  
N. Shah

Clinical Relevance Indirect composite restorations have better marginal adaptation than direct composite restorations, and cyclic loading has a more deteriorating effect on the marginal adaptation and microtensile bond strength of direct composite restorations than indirect composite restorations.

10.2341/08-18 ◽  
2008 ◽  
Vol 33 (6) ◽  
pp. 682-689 ◽  
Author(s):  
S. C. S. X. B. Cavalcanti ◽  
C. A. G. Arais ◽  
M. T. Oliveira ◽  
M. Giannini

Clinical Relevance The presentation mode of co-initiators added to bonding agents may affect the bond strength of indirect composite restorations to dentin.


2020 ◽  
Vol 14 (04) ◽  
pp. 644-650
Author(s):  
Manuel Salvador Urcuyo Alvarado ◽  
Diana María Escobar García ◽  
Amaury de Jesús Pozos Guillén ◽  
Juan Carlos Flores Arriaga ◽  
Gabriel Fernando Romo Ramírez ◽  
...  

Abstract Objective Preheated resins (PR) are considered a cementing agent option for indirect adhesive restorations of composite inlays and onlays. The objective of this in vitro study was to evaluate the marginal sealing, adhesive interface, and microtensile bond strength of indirect adhesive restorations of composites in terms of dentin cemented with PR. Materials and Methods Standardized Class II preparations were performed on 30 extracted human premolars, impressions were taken, and indirect composite restorations were manufactured. In total, 15 restorations were cemented with PR (ENA HRi, SYNCA), and 15 restorations were cemented with self-adhesive resinous cement (RC) (Relyx U200, 3M ESPE), followed by a thermocycling regime. After that, these were segmented sagittally and longitudinally to evaluate the marginal sealing and the adhesive interface with scanning electron microscopy and confocal microscopy. Microtensile bond strength was assessed with a mechanical device (TA. XT Plus C, Stable Micro System). Statistical analysis Statistical analysis was conducted using the two-sample Student’s t-test. Results The results showed that there is no statistically significant difference in the degree of microfiltration using PR or RC; however, microtensile bond strength is greater when the restoration is cemented with RC (278.75 N/cm3) than with PR (144.49 N/cm3), and better adjustment and sealing were observed for composite restorations with PR. Conclusion PR comprise an alternative cementing agent for indirect composite restorations in Class II cavities in premolars.


2012 ◽  
Vol 15 (2) ◽  
Author(s):  
Albert David Correa Medina ◽  
Andréia Bolzan Paula ◽  
Regina Maria Puppin-Rontani ◽  
Fabiana Scarparo Naufel ◽  
Mario Alexandre Coelho Sinhoreti ◽  
...  

10.2341/07-65 ◽  
2008 ◽  
Vol 33 (2) ◽  
pp. 163-168 ◽  
Author(s):  
A. N. Cavalcanti ◽  
F. H. O. Mitsui ◽  
F. Silva ◽  
A. R. Peris ◽  
A. Bedran-Russo ◽  
...  

Clinical Relevance New resin composite technologies, such as nano-filled-based systems, have been developed. The assessment of such materials in a simulated laboratory chewing condition may assist with the selection of composites in a clinical situation.


2012 ◽  
Vol 31 (6) ◽  
pp. 924-932 ◽  
Author(s):  
Theodora BRAVIS ◽  
Peter PILECKI ◽  
Ron F. WILSON ◽  
Michael FENLON ◽  
Timothy F. WATSON ◽  
...  

10.2341/06-84 ◽  
2007 ◽  
Vol 32 (3) ◽  
pp. 291-297 ◽  
Author(s):  
P. R. Schmidlin ◽  
K. Wolleb ◽  
T. Imfeld ◽  
M. Gygax ◽  
A. Lussi

Clinical Relevance Beveling box-only Class II cavities is necessary to improve the marginal quality of restorations. Where beveling is impossible or difficult to achieve, ultrasound may improve marginal quality.


2006 ◽  
Vol 31 (6) ◽  
pp. 688-693 ◽  
Author(s):  
B. A. C. Loomans ◽  
N. J. M. Opdam ◽  
F. J. M. Roeters ◽  
E. M. Bronkhorst ◽  
R. C. W. Burgersdijk

Clinical Relevance When placing a Class II resin composite restoration, the use of sectional matrix systems and separation rings to obtain tight proximal contacts is recommended.


10.2341/06-86 ◽  
2007 ◽  
Vol 32 (3) ◽  
pp. 298-305 ◽  
Author(s):  
O. El-Mowafy ◽  
W. El-Badrawy ◽  
A. Eltanty ◽  
K. Abbasi ◽  
N. Habib

Clinical Relevance Fiber inserts incorporated at the gingival floor of Class II composite restorations resulted in a significant reduction of microleakage scores as compared to restorations made without inserts. This may lead to a reduced incidence of recurrent caries.


10.2341/06-16 ◽  
2007 ◽  
Vol 32 (1) ◽  
pp. 60-66 ◽  
Author(s):  
S. Idriss ◽  
T. Abduljabbar ◽  
C. Habib ◽  
R. Omar

Clinical Relevance Even though marginal gap size was not shown to be a direct predictor for the extent of microleakage in resin composite restorations, both material and placement technique appear to be important determinants in microleakage and, thus, probably in clinical outcomes.


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