Effect of artificial saliva contamination on pH value change and dentin bond strength

2003 ◽  
Vol 19 (5) ◽  
pp. 429-434 ◽  
Author(s):  
Noriko Hiraishi ◽  
Yuichi Kitasako ◽  
Toru Nikaido ◽  
Satoshi Nomura ◽  
Michael F Burrow ◽  
...  
Keyword(s):  
Bond Strength ◽  
Ph Value ◽  
Artificial Saliva ◽  
Value Change ◽  
Saliva Contamination

scholarly journals Artificial Saliva Contamination Effects on Bond Strength of Self-etching Primers

2008 ◽  
Vol 78 (4) ◽  
pp. 716-721 ◽  
Author(s):  
Ekaterini Paschos ◽  
Jean-Oliver Westphal ◽  
Nicoleta Ilie ◽  
Karin Christine Huth ◽  
Reinhard Hickel ◽  
...  
Keyword(s):  
Bond Strength ◽  
Artificial Saliva ◽  
Saliva Contamination ◽  
Contamination Effects

scholarly journals Effect of Artificial Saliva Contamination on Bond Strength to Pulp Chamber Dentin

2008 ◽  
Vol 02 (02) ◽  
pp. 086-090 ◽  
Author(s):  
Hale Ară ◽  
Nazmiye Dönmez ◽  
Sema Belli
Keyword(s):  
Bond Strength ◽  
Artificial Saliva ◽  
In Vitro Study ◽  
Adhesive System ◽  
Control Group ◽  
Pulp Chamber ◽  
Significant Difference ◽  
Group 2 ◽  
Saliva Contamination

ABSTRACTObjectives: The purpose of this in vitro study was to evaluate the effect of artificial saliva contamination on microtensile bond strength to pulp chamber dentin.Methods: Clearfil SE Bond (SEB) (Kuraray, JAPAN) adhesive system and Clearfil Photo Posterior (CPP) (Kuraray, JAPAN) composite resin were used. Twenty extracted caries-free human molar teeth were randomly distributed into four groups. Apart from a control group without contamination (Group 1), primed dentin surfaces were contaminated with artificial saliva (10 s), rinsed, dried, reprimed and bonded (Group 2), coated with adhesive, contaminated with artificial saliva, rinsed, dried, bonding procedures were repeated (Group 3), coated with adhesive, light cured, contaminated with saliva, rinsed, dried, treated with SE primer (SEP) and SEB (Group 4).After 24 hrs, the teeth were prepared for microtensile bond testing and tensile bond strength was measured (1mm/min). The data was calculated as MPa and analyzed using one-way ANOVA and Duncan test (P<.05).Results: The results indicated that Group 2 showed lowest bond strength when compared to the others (P<.05). No statistically significant difference was found between Groups 3 and 4 (P>.05).Conclusions: It was concluded that contamination during priming procedure has a negative effect on bond strength (P<.05). Although contamination of the uncured adhesive was not critical in this study (P>.05) any kind of contamination of the bonding area should, in principle, be avoided. (Eur J Dent 2008;2:86-90)

scholarly journals Shear bond strength of metallic brackets: influence of saliva contamination

2009 ◽  
Vol 17 (3) ◽  
pp. 190-194 ◽  
Author(s):  
Luciana Borges Retamoso ◽  
Fabrício Mezzomo Collares ◽  
Eduardo Silveira Ferreira ◽  
Susana Maria Werner Samuel
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Saliva Contamination

scholarly journals Effect of saliva contamination and re-etching time on the shear bond strength of a pit and fissure sealant

2004 ◽  
Vol 12 (3) ◽  
pp. 200-204 ◽  
Author(s):  
Gisele Maria Correr ◽  
Angela S. Caldo-Teixeira ◽  
Roberta Caroline Bruschi Alonso ◽  
Regina Maria Puppin-Rontani ◽  
Mário Alexandre Coelho Sinhoreti ◽  
...  
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Etching Time ◽  
Control Group ◽  
Distilled Water ◽  
Third Molars ◽  
Fissure Sealant ◽  
Significant Difference ◽  
Pit And Fissure Sealant ◽  
Saliva Contamination

The aim of this study was to evaluate the effect of saliva contamination (SCT) and re-etching time (RET) on the shear bond strength (SBS) of the Fluroshield sealant. Forty-five extracted third molars were sectioned and flattened until reach an enamel surface area. Then, all samples were etched for 30 sec with 35% phosphoric acid and then they were distributed into 9 groups (n=10) according to SCT and RET (seconds), respectively: G1- control (no SCT and no RET); G2- 30s and 0s; G3- 60s and 0s; G4-30s and 2s; G5- 30s and 5s; G6- 30s and 15s; G7-60s and 2s; G8- 60s and 5s; G9- 60s and 15s. The sealant was applied according to the manufacturer's instructions. The samples were stored in distilled water at 37ºC for 72h and subjected to the SBS test. The results indicated that there was no statistically significant difference between the groups (p>0.05). However, it could be noticed that: 1- the longer the SCT, the lower the SBS values; 2 - the longer the RET, the higher the SBS values. It could be concluded that there was a tendency to the shortest SCT (30s) associated to the longest RET (5 and 15s) to reach similar SBS values for the control group.

scholarly journals Adhesion procedure for CAD/CAM resin crown bonding: Reduction of bond strengths due to artificial saliva contamination

2018 ◽  
Vol 62 (2) ◽  
pp. 177-183 ◽  
Author(s):  
Asuka Kawaguchi-Uemura ◽  
Atsushi Mine ◽  
Mariko Matsumoto ◽  
Yuko Tajiri ◽  
Mami Higashi ◽  
...  
Keyword(s):  
Artificial Saliva ◽  
Cad Cam ◽  
Bond Strengths ◽  
Saliva Contamination

scholarly journals Effect of saliva contamination on bond strength witha hydrophilic composite resin

2013 ◽  
Vol 18 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Mauren Bitencourt Deprá ◽  
Josiane Xavier de Almeida ◽  
Taís de Morais Alves da Cunha ◽  
Luis Filipe Siu Lon ◽  
Luciana Borges Retamoso ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Color Change ◽  
Resin Composite ◽  
Bonding Material ◽  
Adhesive Remnant Index ◽  
Composite Methods ◽  
Standard Deviations ◽  
Saliva Contamination

OBJECTIVE: To evaluate the influence of saliva contamination on the bond strength of metallic brackets bonded to enamel with hydrophilic resin composite. METHODS: Eighty premolars were randomly divided into 4 groups (n = 20) according to bonding material and contamination: G1) bonded with Transbond XT with no saliva contamination, G2) bonded with Transbond XT with saliva contamination, G3) bonded with Transbond Plus Color Change with no saliva contamination and G4) bonded with Transbond Plus Color Change with saliva contamination. The results were statistically analyzed (ANOVA/Tukey). RESULTS: The means and standard deviations (MPa) were: G1)10.15 ± 3.75; G2) 6.8 ± 2.54; G3) 9.3 ± 3.36; G4) 8.3 ± 2.95. The adhesive remnant index (ARI) ranged between 0 and 1 in G1 and G4. In G2 there was a prevalence of score 0 and similar ARI distribution in G3. CONCLUSION: Saliva contamination reduced bond strength when Transbond XT hydrophobic resin composite was used. However, the hydrophilic resin Transbond Plus Color Change was not affected by the contamination.

scholarly journals Influence of saliva contamination on the shear bond strength of adhesives on enamel

2012 ◽  
Vol 17 (2) ◽  
pp. 30.e1-30.e6 ◽  
Author(s):  
Tatiana Feres Assad-Loss ◽  
Mônica Tostes ◽  
José Nelson Mucha
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Saliva Contamination

scholarly journals Effect of topical fluoride on microshear bond strength of primary enamel to composite, microhardness of enamel and its surface morphology: An in vitro study

2019 ◽  
Vol 13 (4) ◽  
pp. 305-310
Author(s):  
Mina Biria ◽  
Sajedeh Namaei Ghasemi ◽  
Seyedeh Mahsa Sheikh-Al-Eslamian ◽  
Narges Panahandeh
Keyword(s):  
Bond Strength ◽  
Artificial Saliva ◽  
Morphological Characteristics ◽  
In Vitro Study ◽  
Vitro Study ◽  
Control Group ◽  
Modes Of Failure ◽  
Group 3 ◽  
Microshear Bond Strength

Background. This in vitro study aimed to evaluate the microshear bond strength (μSBS), microhardness and morphological characteristics of primary enamel after treating with sodium fluoride (NaF) and acidulated phosphate fluoride (APF). Methods. Forty-eight primary canines were cut into mesial and distal sections and assigned to five groups randomly: group 1 (immersed in saliva as a control), group 2 (treated with NAF and immersed in saliva for 30 minutes), group 3 (treated with APF and immersed in saliva for 30 minutes), group 4 (treated with NAF and immersed in saliva for 10 days), and group 5 (treated with APF and immersed in saliva for 10 days). Composite resin (Filtek Z250) was bonded on the specimens (n=15) for measuring the μSBS. After storage in 37°C artificial saliva for 24 hours, µSBS and Vickers hardness tests (10 readings) were performed. The data were analyzed using one-way ANOVA and Kolmogorov-Smirnov, Levene’s and Tukey HSD tests (P<0.05). Morphological analysis of enamel and modes of failure were carried out under a scanning electron microscope (SEM) on two remaining specimens. Results. Significant differences in μSBS were only noted between groups 2 and 4 (P=0.024). Group 3 showed a significant decrease in hardness after storage in artificial saliva (P<0.001), with a significantly lower hardness than the other groups (P<0.001). The SEM observations showed irregular particles in groups 3 and 5; uniform, smooth and thin coats were seen in groups 2 and 4. Conclusion. Fluoride therapy with NaF and APF gels prior to restorative treatments had no adverse effects on the microshear bond strength.

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