Effect of Polishing Techniques and Time on Surface Roughness, Hardness and Microleakage of Resin Composite Restorations

2006 ◽  
Vol 31 (1) ◽  
pp. 11-17 ◽  
Author(s):  
D. Venturini ◽  
M. S. Cenci ◽  
F. F. Demarco ◽  
G. B. Camacho ◽  
J. M. Powers

Clinical Relevance The effects of polishing techniques on surface roughness, microhardness and microleakage of resin composites are material dependent. In general, since immediate polishing has not had a negative influence on the tested properties of the two composites compared to delayed polishing, this procedure could be preferred, reducing the number of clinic sessions and bringing more comfort and satisfaction to the patient.


2007 ◽  
Vol 32 (4) ◽  
pp. 356-362 ◽  
Author(s):  
E. Moreira da Silva ◽  
G. O. dos Santos ◽  
J. G. A. Guimarães ◽  
A. A. L. Barcellos ◽  
E. M. Sampaio

Clinical Relevance Resin composites with high viscous flow and low flexural modulus may reduce gap formation in resin composite restorations.



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.



2016 ◽  
Vol 10 (01) ◽  
pp. 016-022 ◽  
Author(s):  
Hande Kemaloglu ◽  
Tijen Pamir ◽  
Huseyin Tezel

ABSTRACT Objective: To compare the performance and postoperative sensitivity of a posterior resin composite with that of bonded amalgam in 40 (n = 20) large sized cavities and to evaluate whether resin composite could be an alternative for bonded amalgam. Materials and Methods: This was a randomized clinical trial. Twenty patients in need of at least two posterior restorations were recruited. Authors randomly assigned one half of the restorations to receive bonded amalgam and the other half to composite restorations. Forty bonded amalgams (n = 20) and composites (n = 20) were evaluated for their performance on modified-US Public Health Service criteria and postoperative sensitivity using visual analogue scale (VAS) for 36-months. Results: Success rate of this study was 100%. First clinical alterations were rated as Bravo after 1 year in marginal discoloration, marginal adaptation, anatomical form, and surface roughness for both amalgam and composite. At the 3rd year, overall “Bravo” rated restorations were 12 for bonded amalgam and 13 for resin composites. There were no significant differences among the VAS scores of composites and bonded amalgams for all periods (P > 0.05) except for the comparisons at the 3rd year evaluation (P < 0.05). Conclusions: Within the limitation of this study, both resin composite and bonded amalgam were clinically acceptable. Postoperative sensitivity results tend to decrease more in composite restorations rather than amalgams. Therefore, it was concluded that posterior resin composite can be used even in large sized cavities.



2006 ◽  
Vol 31 (1) ◽  
pp. 60-67 ◽  
Author(s):  
B. M. Owens ◽  
W. W. Johnson ◽  
E. F. Harris

Clinical Relevance Decreased leakage was associated with Adper Scotchbond Multi-Purpose (total etch) and iBond (self-etch) systems in Class V resin composite restorations. All adhesive systems performed best when bonded to enamel compared to dentin surface anatomy. Clinicians should be aware that strict adherence to manufacturer instructions, when using these materials, is of primary importance.



2009 ◽  
Vol 34 (5) ◽  
pp. 507-515 ◽  
Author(s):  
S-Y. Kim ◽  
K-W. Lee ◽  
S-R. Seong ◽  
M-A. Lee ◽  
I-B. Lee ◽  
...  

Clinical Relevance Over a two–year observation period, ScotchBond Multi-Purpose was found to have significantly superior marginal adaptation compared to Adper Prompt. Restorations using retention forms showed a significantly higher retention rate in an experimental adhesive and significantly less marginal discoloration in all three adhesives.



2014 ◽  
Vol 39 (5) ◽  
pp. 521-529 ◽  
Author(s):  
EM da Silva ◽  
CUF de Sá Rodrigues ◽  
DA Dias ◽  
S da Silva ◽  
CM Amaral ◽  
...  

SUMMARY The purpose of this study was to evaluate the influence of toothbrushing-mouthrinse-cycling (TMC) on the surface roughness and topography of three resin composites with different filler particle systems (Z350, nanofilled [Nf]; Durafill, microfilled [Mf], and Empress Direct, microhybrid [Mh]). Twenty specimens of each resin composite (8.0 mm diameter and 2 mm height) were randomly divided into four groups (n=5) according to the mouthrinses: alcohol-free (Plax – P) and alcohol-containing (Listerine – L and Plax Fresh Mint – PM) and artificial saliva (control – AS). The specimens were submitted to TMC for nine weeks. A surface roughness tester and a three-dimensional profilometer were used to measure the roughness (Ra) and the topography (Sa) before and after TMC. The data were analyzed by multifactor analysis of variance and Tukey post hoc test (α=0.05). In all media, Mh presented greater roughness than Mf (p&lt;0.05). The highest value of roughness was presented by Mh immersed in L (p&lt;0.05). The lowest values of roughness were presented by Mf (p&lt;0.05). The three resin composites presented the highest roughness after immersion in mouthrinses containing alcohol (PM and L) (p&lt;0.05). For the three resin composites, the increase in roughness was noticeable after the fifth week. Topographic analysis showed that the smoothest surfaces were present after immersion in AS.



2010 ◽  
Vol 35 (4) ◽  
pp. 454-462 ◽  
Author(s):  
D. Kampouropoulos ◽  
C. Paximada ◽  
M. Loukidis ◽  
A. Kakaboura

Clinical Relevance The types of matrices assessed, metal or transparent, circumferential or sectional, straight or pre-contoured, were not able to adequately reconstruct all the characteristics of the proximal contact area of an intact tooth in Class II resin composite restorations.



2010 ◽  
Vol 35 (5) ◽  
pp. 500-507 ◽  
Author(s):  
A. R. Yazici ◽  
M. Baseren ◽  
J. Gorucu

Clinical Relevance The laser could be a promising alternative for minimally invasive occlusal resin composite cavity preparations, as its clinical performance was similar to bur-prepared composite restorations.



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