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[Clinical study of two fixed prosthetics in dentition defect of Kennedy I and II type].

PURPOSE
To investigate the feasibility and clinical effect of two fixed prosthetic, supported by implant alone or by implant and natural teeth, in dentition defect of Kennedy I or II type.


METHODS
Sixty subjects with dentition defect of Kennedy I or II were collected. They were divided into group A and group B, 30 subjects in each group respectively. Group A was restore with PFM crown or bridge, supported by implant or implant combined with natural teeth. Group B was treated by cantilever fixed bridge supported by natural teeth. The treatment outcomes were analyzed with SPSS17.0 software package.


RESULTS
With 5 years of follow-up, all subjects in group A and 26/30 subjects in group B had successful restoration. There was significant difference in successful rate between group A and group B(P<0.05).


CONCLUSION
Fixed prosthetics supported by implant alone and by both implant and natural teeth, in dentition defect of Kennedy I or II is feasible and its clinical effect is satisfactory. Supported by Research Fund of Science and Technology Commission of Fengxian District, Shanghai Municipality(Grant No.96-3).