Tooth becomes weak and brittle after the root canal treatment.In case of root canal treatment,infected nerve which is present at the centre of the tooth is removed and only the sides of the tooth are available for support which will cause tooth to become weak and brittle.Tooth also becomes brittle due to loss of fluid substance of the tooth during root canal procedure.To increase the strength of the tooth, dental crown is advised after root canal treatment. If dental crown is not placed on root canal treated tooth, then the tooth will become more liable to fracture and breakage. A root canal treated tooth with only dental filling on it and no dental crown is more prone to fracture as compared to a normal tooth.
If it a back tooth,that is molars or bicuspids,then you should get dental crown immediately after the root canal treatment. A front tooth may become discolored after root canal so dental crown is also to be given to front tooth after root canal treatment. It is not recommended to wait for getting a dental crown after RCT. Waiting for too long for dental crown after root canal treatment can lead to fracture of tooth and if a vertical crack line occurs on the tooth, then tooth extraction may also be required.
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