techniquesApplication

of the dentin bonding

Changes in bond strength

by: David Lafuente, DDS, MS

with different

Before

Y2K(+-2)

year 2000

The detin bonding agent was applied

BRUSHED

After

Y2K(+-2)

The dentin bonding agent is applied

RUBBED

Why?

1996

Permaquick

Recommended application technique

Rubbing hard the adhesive

On dentin

MPa

**bond strength

MPa

**bond strength

increases

**

1 Increases penetration

1 Increases penetration

2 Increases coverage

2 Increases coverage

3 Increases hybrid layer’s thickness

2004

Dr. David Lafuente

Place1

National Research Award, Costa Rica

2003

+

Analysis of the hybrid layer that different application technique

produce.

David Lafuente, DDS, MS2008

(in press)

Place2

2008

National Research Award, Costa Rica

RESULTS

when the adhesive is applied...

RUBBED

BRUSHED

Scotchbond MP

MPa 11

Brushed

Scotchbond MP

MPa

22

Rubbed

Single Bond

MPa 9

Brushed

Single Bond

MPa

17

Rubbed

Prime&Bond 2.1

MPa 10

Brushed

Prime&Bond 2.1

MPa

16

Rubbed

Permaquick

MPa 22

Brushed

Permaquick

MPa

24

Rubbed

Clearfil Liner B2V*

MPa 6

Brushed

Clearfil Liner B2V*

MPa

14

Rubbed

*self-etch

One Up Bond F*

MPa 8

Brushed

One Up Bond F*

MPa

28

Rubbed

*self-etch

Hybrid Layer Thickness

Brushed

Rubbed

DBS evaluated:Optibond Solo Plus

Optibond Solo PlusPQ1

DBS evaluated:

Optibond Solo PlusPQ1One Up Bond F

DBS evaluated:

Number of

layers of

not yet published

Excite

MPa 32

2 layers

Excite

MPa

45

3 layers

Single Bond 2

MPa 32

2 layers

Single Bond 2

MPa

38

3 layers

Prime&Bond NT

MPa 19

2 layers

Prime&Bond NT

MPa

33

3 layers

Final comments

1

Rubbed

2

2 layers

light cure

3rd layer

light cure

Suggestion

Extra10 s

from the manufacturer’s recomendation

more information://lafuentedental.blogspot.com

spanish only

Produced by:David Lafuente, DDS, MS

Professor, University Of Costa Rica

Design by: