1319 Fluoride Release of a Novel Automix Resin-Modified Glass-Ionomer Luting Cement

Saturday, March 24, 2012: 9:45 a.m. - 11 a.m.
Presentation Type: Poster Session
T. TON1, Y. WANG1, A. FALSAFI1, and J. OXMAN2, 13M ESPE Dental Products, Saint Paul, MN, 23M ESPE, St. Paul, MN
Objectives:  To compare the long term fluoride release of a novel automix resin-modified glass ionomer (RMGI) luting cement versus other RMGI cements. 

Methods:  Materials used were RelyX Luting Plus Automix cement (RLP-AMX, 3M ESPE), RelyX Luting Plus cement (RLP-HMX, 3M ESPE), RelyX Luting cement (RLC, 3M ESPE), and Fuji Plus Capsule (FP, GC). Fluoride release from three cured discs (20 x 1 mm) of each product in 37C deionized water was measured after 1, 7, 14, 28, 90, 365 days using fluoride selective electrode and TISAB buffer solution.

Results: The mean values for cumulative fluoride release, including the standard deviations, are summarized in the following table:

 

 

 

 

Cumulative Fluoride Release after Days (micro g F/g sample)

Material

Delivery System

Format

Chemistry

1

7

14

28 

90

365

RLP-AMX

Automix

Paste/Paste

RMGI

620±18

1390±31

1949±50

2655±74

3802±101

6112±113

RLP-HMX

Handmix

Paste/Paste

RMGI

660±12

1467±17

2025±20

2730±20

3952±29

6442±50

RLC

Handmix

Powder/ Liquid

RMGI

599±18

1435±48

2010±55

2733±59

3999±65

6541±90

FP

Triturated capsule

Powder/ Liquid

RMGI

251±10

524±23

726±26

985±35

1497±50

2920±93

Conclusions: ANOVA analysis was performed at p < 0.05 per Tukey’s pair wise comparison test. The RLP-AMX released comparable amounts of fluoride compared to RLP or RLC and all significantly released higher fluoride than FP. All resin-modified glass-ionomer cements exhibited sustained fluoride release over 1 year.


Keywords: Cements, Fluoride, Glass ionomers and RMGI Luting