Ten years' clinical evaluation of three luting cements.
OBJECTIVE
The aim of the present clinical longitudinal study was to observe, over 10 years, the prognosis of abutment teeth restored with fixed prostheses retained by glass ionomer luting cements and one conventional zinc phosphate cement.


METHODS
Three dentists prepared 135 abutment teeth in 61 patients to retain 81 fixed prostheses. The prostheses were retained by two glass ionomer luting cements (Ketac-Cem, Fuji Ionomer), or a conventional zinc phosphate cement (De Trey Zinc Zement Improved). The patients were examined yearly for 10 years.


RESULTS
Post-operative hypersensitivity occurred in five teeth restored with glass ionomer luting cement. The prevailing reason for abutment tooth failure was secondary caries (n = 21) and pulp necrosis (n = 5). Non-parametric survival estimates indicated that 80-85% of the abutment teeth remained intact after 5 years and 71-81% after 10 years.


CONCLUSIONS
The 10-year results indicate that the prognosis of abutment teeth restored with fixed prostheses is good, regardless of whether a glass ionomer or a zinc phosphate luting cement is used.
Jokstad
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A
Department of Prosthetic Dentistry and Stomatognathic Physiology, University of Oslo, Norway.
Mjör
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IA
D000044:Dental Abutments; D001840:Dental Bonding / Q000706:statistics & numerical data*; D003731:Dental Caries; D003738:Dental Cements / Q000009:adverse effects; D017268:Dental Prosthesis Retention / Q000706:statistics & numerical data*; D003790:Dental Pulp Necrosis; D019232:Dental Restoration Failure; D003807:Dentin Sensitivity / Q000139:chemically induced; D003830:Denture, Partial, Fixed / Q000706:statistics & numerical data*; D005069:Evaluation Studies as Topic; D005899:Glass Ionomer Cements; D006801:Humans; D015993:Life Tables; D008137:Longitudinal Studies; D008277:Magnesium Oxide; D011076:Polycarboxylate Cement; D011379:Prognosis; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D015034:Zinc Oxide; D015036:Zinc Phosphate Cement
D003738:Dental Cements; D005899:Glass Ionomer Cements; D011076:Polycarboxylate Cement; D008277:Magnesium Oxide; C037885:Fuji-ionomer; D015036:Zinc Phosphate Cement; C040235:Ketac-cem; D015034:Zinc Oxide