Clinical effect of using light-cure technique to repair porcelain fracture in PFM

Objective To observe the clinical effect of light-cure technique to repair porcelain fracture in PFM. Methods 23 cases of porcelain fracture in PFM occurred during five years from 2003 to 2008. We all did the ceramic surface conditioning in advance,and the surface etched with 10.0%~12.5% hydrofluoric acid for 30 s to 120 s. If necessary,the exposing base should be coarsened or cavities prepared,then light-cured composite resin filling followed and the colors compounded with silane primer and ibond material. Results After follow-up of 6 months to 5 years,20 cases showed good result;no loosening,no discoursing and no color-turning. The success rate was 86.96%. Conclusion The light-cure technique used to repair porcelain fracture in PFM has good clinical effect.