Tensile bond strength of a flowable composite resin to ER:YAG-laser-treated dentin

2005 ◽  
Vol 36 (5) ◽  
pp. 351-355 ◽  
Author(s):  
Juliana Donadio-Moura ◽  
Sheila Gouw-Soares ◽  
Patricia M. de Freitas ◽  
Ricardo S. Navarro ◽  
Lynn G. Powell ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Er:Yag Laser ◽  
Tensile Bond Strength ◽  
Flowable Composite

scholarly journals Comparative Evaluation of Microtensile Bond Strength of Three Restorative Materials

2020 ◽  
Vol 10 (6) ◽  
pp. 6688-6694
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Tensile Bond Strength ◽  
Restorative Material ◽  
Third Molars ◽  
Microtensile Bond Strength ◽  
Flowable Composite ◽  
Carious Lesions ◽  
Occlusal Surfaces ◽  
Frequent Failure

The present study aimed to compare the micro-tensile bond strength of new and conventional glass-ionomers and Z350 flowable composite resin to sound and caries-affected dentin. Eighty extracted third molars were selected. Standard Cl I cavities were prepared on occlusal surfaces. Forty teeth were assigned to the sound tooth group, and in the remaining 40 teeth, carious lesions were produced using a laboratory technique. Then each group (n=40) was subdivided into 5 groups (n=8) in terms of the restorative material used (EQUIA® Forte, Ketac Molar, encapsulated and hand-mixed GC Fuji II LC glass-ionomers and Z350 flowable composite resin). The cavities were restored. The highest micro-tensile bond strength was recorded with Z350 flowable composite resin in sound dentin (29.65), and the lowest was recorded with GC Fuji II LC (powder, liquid) in affected dentin (7.88). Significant differences were detected in the micro-tensile bond strength between the 5 restorative material groups. The composite resin bond strength was the maximum and was significantly different from all the other groups. The micro-tensile bond strength was affected by the type of dentin; in this context, in all the restorative groups, the bond strength in sound dentin was significantly higher than that in affected dentin. The most frequent failure mode was adhesive in the sound and affected dentin.

The effect of enamel moisture on tensile bond strength of composite resin using Single bond in total etch technique

2014 ◽  
Vol 10 (1) ◽  
pp. 59-68
Author(s):  
H Afshar ◽  
M Ghandehari ◽  
S Amiri ◽  
Z Mirzayi ◽  
M Pourali ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Tensile Bond Strength ◽  
Single Bond

scholarly journals Impact of Intracoronal Dentin Treatment Prior to Bleaching on Bond Strength of Restorative Materials

2014 ◽  
Vol 25 (6) ◽  
pp. 519-523 ◽  
Author(s):  
Erica Moreno Zanconato-Carvalho ◽  
João Felipe Bruniera ◽  
Natália Spadini de Faria ◽  
Vivian Colucci ◽  
Danielle Cristine Messias
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Surface Treatment ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Er:Yag Laser ◽  
Composite Resins ◽  
Bleaching Procedure ◽  
Significant Difference ◽  
Restorative Materials

Surface treatment of dentin before the bleaching procedure may affect its permeability and influence the bond strength of restorative materials. This study evaluated the influence of surface treatment before the bleaching on shear bond strength (SBT) of restorative materials to intracoronal dentin. Dentin slabs were subjected to surface treatment: no bleaching (control - CON), no surface treatment + bleaching (HP), 37% phosphoric acid + bleaching (PA) and Er:YAG laser + bleaching (L). After the bleaching procedure, specimens (n=10) were restored with: microhybrid composite resin (MH), flowable composite resin (F), and resin-modified glass-ionomer cement (RMGIC). The shear test was carried out. ANOVA and Tukey's test (α=0.05) showed significant difference for surface treatment and restorative materials (p<0.05). CON presented higher STB and was statistically different from HP (p<0.05). PA and L showed intermediate values and were statistically similar to CON and HP (p>0.05). STB for MH and F were higher than RMGIC (p<0.05), and did not differ from each other (p>0.05). The surface treatments with phosphoric acid and Er:YAG laser before the bleaching procedure provided shear bond strength at the same level of unbleached dentin and the composite resins presented superior bond strength to the intracoronal dentin.

scholarly journals Co-Blend Application Mode of Bulk Fill Composite Resin

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2504
Author(s):  
Mohammad Al-Nabulsi ◽  
Alaa Daud ◽  
Cynthia Yiu ◽  
Hanan Omar ◽  
Salvatore Sauro ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Degree Of Conversion ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Force Microscopy ◽  
Flowable Composite ◽  
Etch And Rinse ◽  
Significant Difference ◽  
Nanoindentation Hardness

Objective: To evaluate the effect of a new application method of bulk-fill flowable composite resin material on bond-strength, nanoleakage, and mechanical properties of dentine bonding agents. Materials and methods: Sound extracted human molars were randomly divided into: manufacturer’s instructions (MI), manual blend 2 mm (MB2), and manual blend 4 mm (MB4). Occlusal enamel was removed and flattened, dentin surfaces were bonded by Prime & Bond universal (Dentsply and Optibond FL, Kerr). For the MI group, adhesives were applied following the manufacturer’s instructions then light-cured. For MB groups, SDR flow+ bulk-fill flowable composite resin was applied in 2- or 4-mm increment then manually rubbed by a micro brush for 15 s with uncured dentine bonding agents and the mixture was light-cured. Composite buildup was fabricated incrementally using Ceram.X One, Dentsply nanohybrid composite resin restorative material. After 24-h water storage, the teeth were sectioned to obtain beams of about 0.8 mm2 for 24-h and thermocycled micro-tensile bond strength at 0.5 mm/min crosshead speed. Degree of conversion was evaluated with micro-Raman spectroscopy. Contraction gaps at 24 h after polymerization were evaluated and atomic force microscopy (AFM) nano-indentation processes were undertaken for measuring the hardness across the interface. Depth of resin penetration was studied using a scanning electron microscope (SEM). Bond strength data was expressed using two-way ANOVA followed by Tukey’s test. Nanoindentation hardness was separately analyzed using one-way ANOVA. Results: Factors “storage F = 6.3” and “application F = 30.11” significantly affected the bond strength to dentine. For Optibond FL, no significant difference in nanoleakage was found in MI/MB4 groups between baseline and aged specimens; significant difference in nanoleakage score was observed in MB2 groups. Confocal microscopy analysis showed MB2 Optibond FL and Prime & Bond universal specimens diffusing within the dentine. Contraction gap was significantly reduced in MB2 specimens in both adhesive systems. Degree of conversion (DC) of the MB2 specimens were numerically more compared to MS1 in both adhesive systems. Conclusion: Present study suggests that the new co-blend technique might have a positive effect on bond strengths of etch-and-rinse adhesives to dentine.

Effect of low fluency dentin conditioning on tensile bond strength of composite bonded to Er:YAG laser-prepared dentin: a preliminary study

2010 ◽  
Vol 26 (2) ◽  
pp. 187-191 ◽  
Author(s):  
B. Bahrami ◽  
N. Askari ◽  
M. Tielemans ◽  
D. Heysselaer ◽  
L. Lamard ◽  
...  
Keyword(s):  
Bond Strength ◽  
Er:Yag Laser ◽  
Tensile Bond Strength ◽  
Preliminary Study ◽  
Dentin Conditioning

Tensile bond strength of intracanal posts in primary anterior teeth: an in vitro study

2003 ◽  
Vol 27 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Silvia Pithan ◽  
Ricardo de Sousa Vieira ◽  
Marcelo Carvalho Chain
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Testing Machine ◽  
Glass Ionomer Cement ◽  
In Vitro Study ◽  
Vitro Study ◽  
Tensile Bond Strength ◽  
Anterior Teeth ◽  
Group I

The aim of this study was to measure in vitro; the tensile bond strength of three intracanal posts used in anterior primary teeth. A total of 45 single rooted primary anterior teeth were selected for the study and the crowns sectioned leaving 1mm above the cement-enamel junction. The roots were then assigned to three groups according the type of retention used. All roots were endodonticaly treated, a 4-mm of the canal was cleansed and a base of glass ionomer cement was put at the bottom of the prepared canal. The roots were then prepared to receive intracanal posts using a # 4137 diamond bur (KG Sorensen) used in a depth of 3-mm of the length of the canal. All the prepared roots were acid etched with a 37% phosphoric acid gel for 15 seconds, rinsed, dried and the dentin adhesive Single Bond (3M) was applied. Group I received intracanal posts and cores made of composite resin (Filtek Z 250, 3M). Group II intracanal posts were made from a 0.6mm orthodontic wire bent as a Greek letter type (gamma), fixed with the Z 250 composite resin and cores were built with the same composite. Finally Group III received intracanal retention made of a fiber glass post (Fibrekor Post, Generic/Pentron) with 1.25mm diameter, fixed with Z 250 and cores were made like the other groups. The samples were submitted to tension in a universal- testing machine (Instron, model 4444). Statistical analysis (ANOVA) reveled that there were no statistically significant differences between the groups. On the basis of the results of this in vitro study it was concluded that the type of intracanal post did not interfere with the tensile strength and the most frequent type of failure was of adhesive type, corresponding to 74% of the sample.

scholarly journals Perbedaan Kekuatan Geser Reparasi Gigi Tiruan Cekat dengan Resin Komposit Packable dan Flowable (Uji Laboratoris pada permukaan logam NiCr)

2012 ◽  
Vol 19 (2) ◽  
pp. 102
Author(s):  
Endang Wahyuningtyas ◽  
Suparyono Saleh ◽  
Sri Budi Barunawati
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Composite Resin ◽  
Testing Machine ◽  
Composite Resins ◽  
Distilled Water ◽  
Research Subjects ◽  
Flowable Composite ◽  
Diamond Bur ◽  
Universal Testing

Latar Belakang. Resin komposit merupakan bahan pilihan untuk reparasi Gigi Tiruan Cekat porcelain fused to metal (PFM) Karena estetis baik dan manipulasi mudah. Tujuan penelitian ini adalah mengetahui perbedaan kekuatan geser perlekatan resin komposit pada permukaan logam Gigi Tiruan Cekat dengan menggunakan resin komposit jenis packable dan jenis flowable. Metode penelitian. Subjek penelitian berupa logam NiCr (Noritake, Japan) berbentuk silinder dengan diameter 10 mm dan tinggi 3 mm. Penelitian dibagi menjadi dua kelompok, masing-masing terdiri dari 10 subjek. Kelompok pertama reparasi dengan resin komposit packable (Z250™ 3M ESPE, USA) dan kelompok kedua reparasi dengan resin komposit flowable (Dyad flow, Kerr, USA). Permukaan subjek dikasari dengan wheel diamond bur, dietsa dengan asam fosfat 37 % (Scotchbond™, 3M ESPE, USA) kemudian dicuci dan dikeringkan, selanjutnya diaplikasikan silan (Rely X™ Ceramic Primer, 3M ESPE, USA) dan bonding (Adper™ Single Bond, 3M ESPE, USA). Permukaan kemudian dilapisi dengan resin komposit packable dan flowable, disinari selama 40 detik. Subjek penelitian direndam di dalam distilled water dan dimasukkan ke dalam incubator dengan suhu 37°C selama 7 hari. Uji kekuatan geser dilakukan dengan menggunakan Universal Testing Machine. Data dianalisis dengan uji t. hasil uji t menunjukkan terdapat perbedaan bermakna kekuatan geser reparasi gigi tiruan cekat pada permukaan logam (p<0,05). Kesimpulan penelitian ini adalah kekuatan geser reparasi pada permukaan logam dengan menggunakan resin komposit flowable yang mengandung bahan coupling agent lebih tinggi dibandingkan reparasi pada permukaan porselen dengan menggunakan resin komposit packable. Background. One of selected material by repairing the fixed partial denture was composite resin because of its good aesthetics and low manipulation. The aim. This research was aimed at identifying the differences of shear bond strength of composite resin on metal surface by using different composite resins, namely packable and flowable composite resins. Method. The research subjects were cylinders with 10 mm in diameter and 3 mm in height. The research subjects with metal material of NiCr (Noritke, Japan) involved two groups. The first group comprising 10 repair subjects with composite packable (Z250™, 3M ESPE, USA) and 10 repair subjects with flowable composite (Dyad flow, Kerr, USA). The surface of the subjects were roughned with wheel diamond bur and etched with 37% phosphate acid (Scotbond™, 3M ESPE, USA) were applied. The surface was then coated with packable and flowable composite resins and light-cured for 40 seconds. The research subjects were immersed in distilled water and put into the incubator at temperature of 37°C for 7 days. The shear bond strength test was conducted using the Universal Testing Machine. Data were analyzed using t-test. The result. The research result showed that there were differences of shear bond strength of repair between packable and flowable composite resins. The result of t-test indicated significant diffrences on metal surface (p<0,05). The conclusion of this research is that shear bond strength of repair with flowable composite which contain coupling agent has higher shear bond strength than that of packable composite resin.

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