THE JOURNAL OF - Dentsply

Blunck/Zaslansky
0
20
40
60
80
100 %
+
Syntac
OptiBond FL
Clearfil SE Bond
a.
MQ1
results after
2 nd TC
enamel
+
+
*
*
*
Prompt L-Pop 1999
Prompt L-Pop 2000
Adper Prompt L-Pop / Tetric Ceram
Adper Prompt L-Pop / Filtek Z250
Xeno III / Quixfil
Xeno III / Tetric Ceram
Xeno III / Dyract eXtra
Futurabond NR
One-up Bond F Plus
AQ Bond
iBond
G-Bond
Hybrid Bond
tri-S bond
+
Syntac
OptiBond FL
Clearfil SE Bond
b.
MQ1
results after
3 rd TC
enamel
+
Prompt L-Pop 1999
Prompt L-Pop 2000
Adper Prompt L-Pop / Tetric Ceram
Adper Prompt L-Pop / Filtek Z250
0
20
40
6
0
80
*
100 %
Xeno III / Tetric Ceram
Xeno III / Dyract eXtra
AQ Bond
iBond
Fig 1 Results of marginal quality
1 in % relative to the enamel margin
length in Class V cavities for
self-etching adhesive systems
after (a) 1-year water storage and
a 2nd TC and (b) after after 3-
year water storage and a 3rd TC
(o and + = outliers, * = statistically
significantly different compared
to Syntac, Opti Bond FL,
and Clearfil SE Bond, p < 0.05).
weighted by the SE) through the six MQ1 data points for every
product. The slopes of these regression lines, as well as the
95% confidence intervals and r 2 values are also shown in
Table 3 (columns I to L), and they provide an overall estimate
of the trend for the deterioration of the MQ1 results for each
product. A general linear deterioration was observed for all
groups (see example plots in Fig 3), which shows that the deterioration
rate is not consistent over time. Furthermore, for
all the products, the overall trend (column I) only occasionally
corresponds to the trend of the intermediate segments
(columns A, C, E, and G in Table 3).
Finally, to better understand how well the data from the
first year can be used to predict the trend in the performance
of each product over a period of 3 years, the trends of T1 -
T4 were calculated and used to derive a percent deviation
estimate relative to the regressed overall trend (the difference
divided by the slope of the overall trend as %, shown in
Table 3, column M). Note that for some of the products (Opti-
Bond FL, AQ Bond, Prompt L Pop 2000, Adper Prompt L Pop,
and Xeno III) a reasonable (≤ 10%) prediction was found,
while for others, deviations of 20%, 30% or even 40% exist.
DISCUSSION
Effectiveness of adhesive systems can be generally judged
by the marginal adaptation of composite resin restorations
at the interface with the tooth substrate. Marginal adaptation
is affected by many different parameters. These might
be greatly influenced by the inherent properties of the
restorative material, such as shrinkage and shrinkage
stress, 24 the chemistry of the adhesive system used, the size
234 The Journal of Adhesive Dentistry