Year : 2015

Volume : Volume 5

Issue : Issue 3s

Address for correspondence :
Dr. Rajesh Kumar Reddy
hkps0320@gmail.com

Abstract

Background: The purpose of clinical crown lengthening is to increase the extent of supragingival tooth structure for restorative or esthetic purposes. The present article aims at recording different failures. Material & Methods: This study was conducted in department of periodontics. It consisted of 112 patients who required crown lengthening procedures. After performing the procedure, the reasons for the early failure of surgical treatments were recorded at second and fifth weeks.  Results: Out of 112 patients, 68 were males and 44 were females. The difference was non significant. 17 patients showed early failure while 95 patients did not showed failure. The main reason for failure was absence of adequate keratinized gingiva around the tooth (47%) at both 2nd and 5th weeks postoperatively. Other reason was presence of granulation tissue around the tooth and the number of cases was 4 in 2nd weeks and 1 in 5th weeks (p-0.02). We reported 3 cases of inadequate surgery at 2nd weeks and 2 at 5th weeks. 2 cases were due to fracture of the tooth structure after surgery reported both at 2nd and 5th weeks. 3 (20%) cases were due to coronal returning of the gingival tissue on the tooth structure recorded at 5th weeks (p- 0.01). Conclusion: Author concluded that clinical crown lengthening is required to increase the extent of supragingival tooth structure for restorative or esthetic purposes. Both early and late failures are common. Absence of adequate keratinized gingiva around the tooth was main reason for failures in present study.

Keywords: Clinical crown lengthening, keratinized gingival, supragingival.