Paper: Shear Bond Strength to Restorative Materials and Tooth Structure (AADR Annual Meeting (March 21-24, 2012))

Friday, March 23, 2012: 8 a.m. - 9:30 a.m.

Presentation Type: Oral Session

J. BURGESS, S. SHAH, D. CAKIR, P. BECK, and L. RAMP, University of Alabama at Birmingham, Birmingham, AL

Objectives: 1) Measure 24hr and thermocycled shear bond strength/(SBS) of Scotchbond Universal/3M ESPE to ParadigmC, LAVA core, IPS e.max CAD, gold and base metal alloy 2) Measure 24hr and 10month SBS of an experimental adhesive to unetched and etched ground human dentin and enamel.

Methods: ParadigmC, e.maxCAD, LAVA blocks and non-noble metal alloy were sectioned (t=4mm). Noble metal alloy was received in 2mm thick blocks. Specimens were polished (180-, 320-grit SiC-paper/4mins), finished (0.5µ Al₂O₃slurry/2mins) and cleaned (ultrasonic/distilled water/15seconds). Molars were wet-ground (320-grit) to obtain flat enamel and dentin. Following surface treatments (table) and bonding agent application, Z100/3M-ESPE cylinders (d=1.5mm) were bonded and light-cured (Elipar/S10/3M-ESPE/1000mW/cm²). Half were debonded after 24hrs storage/37°C (Instron-1mm/min). Remainder of ceramic and alloy specimens were debonded after thermocycling (10,000cycles/6-60°C/15sec dwell time). Remaining enamel and dentin specimens were stored for 10months after thermocycling then debonded. Data analyzed with ANOVA and Tukey/Kramer post-hoc tests (p=0.05).

Material

ParadigmC/e.max CAD
(3M ESPE/Ivoclar)

Lava/3MESPE

Metal Alloys/Ivoclar

Single Bond Plus/SBP/3M-ESPE

HF Etch-Sultan/EspeSil-3MESPE

CoJet-30µm-3MESPE/EspeSil

Al₂O₃-50µm /Metal PrimerII-GC

HF etch/RelyX-Ceramic Primer-3MESPE

Al₂O₃-50µm /Z-Prime-Bisco

Scotchbond Universal/SU/3M-ESPE

HFetch-Sultan

Al₂O₃-50µm

Results: MPa/(Mean±SD) Same letters in same row are not statistically different.

SU/Unetched

SU/Etched

Easy Bond/EB

SBP

Enamel/24hr

26.8±5^B

33.6±6^A,C

27.6±6^A,B

37.4±8^C

Dentin/24hr

30.4±9^A

28.4±5^A

34±7^A

26±7^A

Enamel/10months

23±8^A

37.2±8^B

20.7±8^A

38.7±10^B

Dentin/10months

29.9±11^A

28.6±11^A

38.9±8^A

34±12^A

SBP/Silane

SBP/RelyX-Ceramic Primer

SU/HF-Etch

e.maxCAD/24hr

36.8±4^A

40.6±7^A

34.2±7^A

ParadigmC/24hr

44.1±16^A

32.7±12^A,B

26.3±8^B

e.maxCAD/10,000cycles

28.9±6^A

32.1±6^A

15±4^B

ParadigmC/10,000cycles

38.9±4^A

27±10^A

27.4±5^A

SBP/Cojet+Silane

SBP/Al₂O₃+Z Prime

SU/Al₂O₃

LAVA/24hr

19.8±5^A

32.3±7^B

37.5±5^B

LAVA/10,000cycles

25.6±9^A

29.4±6^A

30.4±4^A

SBP/Al₂O₃+Metal Primer

SU/Al₂O₃

Base-Metal/24hr

29.1±5^A

40.2±5^B

Noble-Metal/24hr

30.6±5^A

29.1±4^A

Base-Metal/10,000cycles

27.5±6^A

32.3±6^A

Noble-Metal/10,000cycles

25.4±6^A

16.5±3^A

Long term storage did not affect enamel and dentin SBS.

SBS decreased after 10,000 thermal cycles for:

e.max: SBP/Silane, SU

Zirconia: SU

Base Metal Alloy: SU

Noble Metal Alloy: SBP, SU

Conclusions: Scotchbond Universal is a promising universal adhesive. Supported in part by 3MESPE

Keywords: Adhesion, Alloys, Ceramics, Dentin and Enamel

See more of: Luting Procedures
See more of: Dental Materials 1: Adhesion - Bond Strength Testing and Mechanisms

<< Previous Abstract | Next Abstract

Material	ParadigmC/e.max CAD (3M ESPE/Ivoclar)	Lava/3MESPE	Metal Alloys/Ivoclar
Single Bond Plus/SBP/3M-ESPE	HF Etch-Sultan/EspeSil-3MESPE	CoJet-30µm-3MESPE/EspeSil	Al₂O₃-50µm /Metal PrimerII-GC
Single Bond Plus/SBP/3M-ESPE	HF etch/RelyX-Ceramic Primer-3MESPE	Al₂O₃-50µm /Z-Prime-Bisco	Al₂O₃-50µm /Metal PrimerII-GC
Scotchbond Universal/SU/3M-ESPE	HFetch-Sultan	Al₂O₃-50µm

	SU/Unetched	SU/Etched	Easy Bond/EB	SBP
Enamel/24hr	26.8±5^B	33.6±6^A,C	27.6±6^A,B	37.4±8^C
Dentin/24hr	30.4±9^A	28.4±5^A	34±7^A	26±7^A
Enamel/10months	23±8^A	37.2±8^B	20.7±8^A	38.7±10^B
Dentin/10months	29.9±11^A	28.6±11^A	38.9±8^A	34±12^A

	SBP/Silane	SBP/RelyX-Ceramic Primer	SU/HF-Etch
e.maxCAD/24hr	36.8±4^A	40.6±7^A	34.2±7^A
ParadigmC/24hr	44.1±16^A	32.7±12^A,B	26.3±8^B
e.maxCAD/10,000cycles	28.9±6^A	32.1±6^A	15±4^B
ParadigmC/10,000cycles	38.9±4^A	27±10^A	27.4±5^A

	SBP/Cojet+Silane	SBP/Al₂O₃+Z Prime	SU/Al₂O₃
LAVA/24hr	19.8±5^A	32.3±7^B	37.5±5^B
LAVA/10,000cycles	25.6±9^A	29.4±6^A	30.4±4^A

	SBP/Al₂O₃+Metal Primer	SU/Al₂O₃
Base-Metal/24hr	29.1±5^A	40.2±5^B
Noble-Metal/24hr	30.6±5^A	29.1±4^A
Base-Metal/10,000cycles	27.5±6^A	32.3±6^A
Noble-Metal/10,000cycles	25.4±6^A	16.5±3^A

636 Shear Bond Strength to Restorative Materials and Tooth Structure