Pulpal response to two semihydrous glass ionomer luting cements.
This study compared the pulpal responses to two innovative semihydrous glass ionomer luting cements (STA and ZIN) with those previously obtained for a conventional anhydrous glass ionomer luting cement, Aquacem. ZIN contained zinc oxide in the formulation. The study was conducted according to the BSI (1989) recommendations for testing restorative materials in vivo. ZIN was associated with minimal pulpal changes and microbial microleakage, and differed little from the control material, Kalzinol. The pulpal response to STA was similar to that observed for Aquacem, but was associated with less microbial microleakage. The statistical model demonstrated a significant association between bacterial presence within the experimental cavity and pulpal inflammation. The closer that bacteria were to the pulp, the more severe was the ensuing inflammation.
Tobias
R S
RS
University of Birmingham Dental School, UK.
Browne
R M
RM
Plant
C G
CG
Williams
J A
JA
Rippin
J W
JW
D000704:Analysis of Variance; D000818:Animals; D016009:Chi-Square Distribution; D003763:Dental Leakage; D003782:Dental Pulp / Q000187:drug effects*; D003804:Dentin / Q000187:drug effects; D004338:Drug Combinations; D005054:Eugenol; D005289:Ferrets; D005557:Formaldehyde; D005899:Glass Ionomer Cements / Q000009:adverse effects*; D006094:Gram-Positive Bacteria; D016014:Linear Models; D008297:Male; D011671:Pulpitis / Q000139:chemically induced / Q000382:microbiology; D015032:Zinc; D015034:Zinc Oxide
D004338:Drug Combinations; D005899:Glass Ionomer Cements; D005557:Formaldehyde; D005054:Eugenol; C003799:N2 Dental Cement; D015032:Zinc; D015034:Zinc Oxide