Clinical observation of the effects of CAD/CAM glass-ceramic onlay in the restoration of mandibular second molar / 实用口腔医学杂志

ABSTRACT

Objective:To evaluate the clinical effects of CAD/CAM glass-ceramic onlays in the restoration of mandibular second molar with distal caries.Methods:56 endodontically treated molars were restored with CAD/CAM glass-ceramic onlays after one-visit root canal treatment.The effects were evaluated by one experienced clinicians in accordanced with the modified USPHS-Criteria at baseline and after 6,12 18 and 24 months.Results:All teeth were completed 2-year-follow-up.Satisfactory effects were observed in retention,marginal adaptation,color match,the secondary caries and adjacency relation.Failure in 3 cases were noted.2 onlays were extracted and 1 fractured.Conclusion:CAD/CAM glass-ceramic onlays is an effective treatment in the restoration of permanent molars with serious caries.