Microleakage along Glassix glass fibre posts cemented with three different materials assessed using a fluid transport system.
OBJECTIVE
To evaluate the microleakage along Glassix fibre posts cemented with three different materials.


METHODS
The root canals of maxillary central incisor teeth were filled and restored with Glassix posts (Harald Nordin sa, Chailly/Montreux, Switzerland) cemented with either a zinc-phosphate Harvard cement (Richter & Hoffmann, Harvard Dental GmbH, Berlin, Germany), Fuji PLUS cement (GC Corporation, Tokyo, Japan) or Variolink II cement (Vivadent, Schaan, Lichtenstein) in three groups of 15 canals each. Twenty unrestored canals served as a control group, 10 filled with gutta-percha and sealer (negative control group), the remaining 10 with gutta-percha only (positive control group). Coronal microleakage was evaluated using a fluid transport system. The movement of an air bubble in a capillary glass tube connected to the apex of the experimental root section was measured over 5-min periods. Measurements were performed four times for each specimen and the mean values recorded. ANOVA and Duncan's test were performed.


RESULTS
The positive control group had the highest values of microleakage. Amongst experimental groups, the highest values of microleakage occurred in the group with the posts cemented with Harvard cement, followed by Fuji PLUS and Variolink II cements. Groups with Fuji PLUS, Variolink II and the negative control group had significantly (P < 0.00001) less microleakage compared with the Harvard cement group and the positive control group.


CONCLUSIONS
Canals with Glassix posts cemented with Variolink II and Fuji PLUS cement had the least leakage when assessed using a fluid transport system.
Rogić-Barbić
M
M
Prosthetic Dentistry Polyclinic, Flegar, Croatia.
Segović
S
S
Pezelj-Ribarić
S
S
Borcić
J
J
Jukić
S
S
Anić
I
I
D000388:Air; D002197:Capillary Action; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry*; D003763:Dental Leakage / Q000145:classification*; D003786:Dental Pulp Cavity / Q000473:pathology; D005898:Glass / Q000737:chemistry*; D005899:Glass Ionomer Cements / Q000737:chemistry; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D007180:Incisor; D008422:Materials Testing; D011176:Post and Core Technique; D019279:Resin Cements / Q000737:chemistry; D012212:Rheology; D012387:Root Canal Filling Materials / Q000737:chemistry; D013997:Time Factors; D015036:Zinc Phosphate Cement / Q000737:chemistry
D003738:Dental Cements; C113301:FujiPlus; D005899:Glass Ionomer Cements; D019279:Resin Cements; D012387:Root Canal Filling Materials; C009753:fiberglass; C103502:Variolink; D015036:Zinc Phosphate Cement; C074226:Harvard Cement; D006171:Gutta-Percha