ObjectiveTo evaluate the esthetic and long-term effec ti veness of Cerinate porcelain(CE) and Belleglass HP (BGHP) in restoring discolore d teeth. MethodsA total of 1871 discolored teeth from 647 pat ients were restored using two materials. The observation of short-term(0.5 to l year) and long-term (over 3 years) effectiveness were followed up, and evaluat ions were made. ResultsThe short-term successful rates were 8 9.5 % and 96.75 % for BGHP CE groups, the long-term successful rates were 88.3 9 % and 96.14 %, and the difference was statistically significant (P0.005). Clinical failure, which was mainly related to t eeth category, teeth position, type of restoration and material, showed as resto ration discoloration, fracture and deciduous, etc. Conclusion BGHP shows higher shear bond strength and longer existence, but further study is required for esthetic results. CE restorations show better esthetic results and longer existence. Therefore, it is an ideal choice to restore discolored teeth.

OBJECTIVETo study the esthetic and long-term effectiveness of cerinate porcelain laminate veneers.

METHODSA total of 736 front teeth were restored with cerinate porcelain laminate veneers, which were then tested at different time points by clinical tracking observation and appraisal.

RESULTSThe short and long term rates of effectiveness were 96.6% and 96.2%, respectively. There was no relationship between clinical effectiveness and the length of restoration time. The failure rate was higher in 18 - 30 years old patients and those with discolored teeth. The major clinical performance was fold fissure and deciduous of porcelain laminate veneers.

CONCLUSIONSCerinate porcelain laminate veneers are an ideal choice for dental esthetic restorations because they are unnoticeable, stable, strong and require no excessive dental preparation.

Adolescent ; Adult ; Aged ; Dental Porcelain ; Dental Restoration, Permanent ; Dental Veneers ; Humans ; Middle Aged