Abstract Objective: To explore the clinical effect of surgical crown lengthening on restoration of broken teeth. Methods: Sixty-eight broken teeth in 62 patients were selected, and were randomly divided into group A and B, 31 patients per group, 36 broken teeth in group A and 32 broken teeth in group B. Patients in group A were given gingivectomy, and patients in group B were given crown lengthening surgery. Broken end and gingival margin of broken teeth before and after surgery were compared, including plaque index (PLI), sulcus bleeding index (SBI), periodontal probing depth (PD), gomphiasis and repair effect. Results: All patients were successfully performed surgery according to plan, periodontal index after surgery were improved (P<0.05), yet there were no statistical differences on periodontal index between two group (P>0.05). After operation, teeth mobility rate in group A was 25.00%, yet there was no tooth mobility in group B, and group A’s teeth mobility rate was higher than that in group B (P<0.05). Two groups’ effective rate of teeth restoration were both 100%, and satisfaction rate were 63.89% and 81.25% respectively in group A and group B. Conclusion: It has good effect of broken teeth restoration by crown lengthening surgery, the procedure can improve and maintain a healthy repaired result. If the indication right, can control the periodontal inflammation.
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Received: 20 May 2014
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