Biodentine

2.6 - Radiopacity
Biodentine contains zirconium oxide allowing identification
on radiographs. According to the ISO standard 6876,
Biodentine displays a radiopacity equivalent to 3.5 mm of
aluminum. This value is over the minimum requirement of the
ISO standard (3 mm aluminum).
This makes Biodentine particularly suitable in the
endodontic indications of canal repair.
2.7 - Comparison with glass ionomers and ProRoot ® MTA
In order to have a larger knowledge of the physico-chemical behavior of Biodentine
compared to glass ionomers and Portland cement based dental materials (ProRoot ®
MTA, Dentsply), we performed several measurements in Septodont’s laboratory:
diametral tensile strength (DTS), flexural strength, elastic modulus, compressive strength
at 24h, Vickers microhardness.
Product Lot #
Natural
Dentine
Dental Materials
& their selection
(O’Brien 2008)
Biodentine 193-A-03.11.08
167-B-19.01.09
3M Glass
Ionomer
VOCO Ionofil ®
Molar AC
GC Fuji IX GP
Capsule
GC Fuji IX GP
(hand mix)
GC Fuji II Light
Cure Capsule
GC Fuji II Light
Cure (hand mix)
ProRoot ® MTA
DTS,
MPa
Flexural
Strength
MPa
Modulus
GPa
Compressive
Strength at
24h(MPa)
0,5 mm/min
Microhardness
HVN
- - 18.5 297 60
16. 0(1.2) 24.0 (7.3) 22.0 (2.3) 213,7 (26,1) 60.9 (5.0)
349270 27.7 (1.0) 26.6 (4.5) 14.9 (2.1) 124.7 (10.3) 77.8 (4.6)
915325 16.4 (1.7) 22.5 (2.5) 10.6 (2.9) 129.9 (17.9) 70.3 (3.9)
902101 16.8 (1.3) 22.8 (1.8) 12.8 (2.8) 130.0 (7.0) 76.8 (3.5)
0811141/
0811031
16.5 (0.5) 14.5 (2.4) 15.4 (3.5) 122.6 (10.1) 72.2 (3.7)
812111 38.1 (1.8) 39.1 (5.4) 8.1 (0.3) 162.8 (10.1) 45.6 (3.9)
0902231/
0812081
08003394/
08084
32.1 (4.2) 19.3 (6.2) 6.3 (0.4) 183.4 (14.8) 43.3 (4.5)
9.5 (1.2) Non measurable Non measurable 56.1 (7.2) Non measurable
From this table, it can be concluded that Biodentine has a mechanical behavior similar
to glass ionomers and is also similar to natural dentine. The mechanical resistance of
Biodentine is also much higher than that of ProRoot ® MTA.
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