The rootse parationo peration repair the treatment after molar preservation and restoration
objective: to save as much as possible with root bifurcation lesion, marrow and bottom destruction, completely longitudinal crack, for parts hidden and not easy treatment after the molar and molar residual crowns, in order to folow the try to keep the principle of natural teeth, reduce the economic burden of the patients with planting and do not have planting indications of the patients, continue to exercise the molar good masticatory function, improve teeth save rate. Methods: choose the molar with lesions, the points root postoperative perfect root canal treatment, form two separate root, the last league crown repair, tooth body organization save less with tooth do pile nuclear + league crown restoration. Results: after 2 years of observation, save the successful rate was 96%, with teeth chewing function can be restored to a good state. Conclusion: the application of points root art processing lesions grind one's teeth after repair, can eliminate a dental stove is saved with root bifurcation lesion, pulp bottom after failure of the grind one's teeth and the molar residual crowns ideal method.
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