18 years old female patient come to clinic asking for restoring her lower first molar , during diagnosis the tooth treated previously with large composite , the old defective filling make the chewing on this side painful so the treatment was to remove the old composite and prepare the tooth after making good biobase for indirect lithium disilicate overlay as the cavity was large and the best filling was the indirect overlay
Initial situation of the tooth showing large defective old composite filling
Old compsite removed , the cavity must be prepared for indirect restoration
Buccal view showing the extension of the old filling
Isolation , all caries removed by using CDD , this cusp reduced as it only one weak cusp is its stay it will deflect in the future
Final cavity after sandblasting
IDS with gold standard Clearfil SE bond ,RC with flowable composite
Deeb marginal elevation (DME) with APX composite ,
Biobase creation
Another view showing the preparation and cusp reduction
Occlusal view
Buccal view after preparation
Impression taking and Liquidam after that as TF
In cementation day we need absolute isolation with rubberdam
Buccal view
Another view
Sandblasting , isolate the adjacent teeth with teflon
Look to the fitness of lithium disilicate overlay
Cementation with heated APX composite
After cementation
Oxygen inhibtion layer removal
Final result ,occlusal view
Lingual view , look to the fitness ✌️
Buccal view befor final finishing and polishing
Another view
Preoperative X_ray showing the defective filling
After DME
Final x-ray showing the fitness of the indirect restoration on the biobase of the tooth 🙏 ,thanks for watching
9 months follow-up
9 months follow-up
9 months follow-up
9 months follow-up
9 months follow-up
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