The effects of four dental metal crowns on magnetic resonance imaging / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 472-476, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-454190
ABSTRACT
Objective:
To observe the artifacts produced by dental metal crown made from different materials on magnetic resonance imaging (MRI).Methods:
Mental crows made from Co-Gr,Ni-Gr,low-Ti alloy and Pure-Ti were respectively fabricated for upper right second premolar of a ripe crossbreed dog.The 4 different casting crowns were respectively put on experimental tooth and head MRI scan was carried out with 4 sequences of 1.5 T and 6 sequences of 3.0 T MRI respectively.The existence and extent of the arti-facts were assessed and compared.Results:
On both 1.5 T and 3.0 T MRI,the Go-Gr alloy crown exhibited significantly wider arti-facts than the others (ANAVO analysis,P0.05).On 3.0 T MRI the artifacts produced by Ni-Gr was larger than that by low-Ti alloy or Pure-Ti(P0.05).By any of the test sequence either on 1.5 T or on 3.0 T,the Co-Gr alloy produced arti-facts in the most slices of MRI imaging and Pure-Ti in the least.Conclusion:
Go-Gr alloy may produce larger artifacts than Ni-Gr, low-Ti alloy and Pure-Ti on MRI.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2014
Type:
Article
Similar
MEDLINE
...
LILACS
LIS