| نویسنده | نفر چندم مقاله |
|---|---|
| امیر رضا بابالو | اول |
| شیما قاسمی | دوم |
| محمد تقی چیت سازی | سوم |
| عنوان | متن |
|---|---|
| کلمات کلیدی | Crown lengthening surgery, keratinized gingivae, granulation tissue. |
| خلاصه مقاله | Introduction: In an overall classification the failures related to crown lengthening surgery are classified into two groups, early failures( before placement of restoration) and late or dilatory failures( after restorative procedures). This study was aimed to evaluate the number and percentage of reasons lead to early failure of crown lengthening procedure of the tooth. Methods and materials: In this descriptive-comparative study 96 patients referring to the Periodontics Department of Tabrize Faculty of Dentistry for crown lengthening surgery were selected.Charactristics of these patients were recorded in the check lists and the reasons of crown lengthening’s failures were determined separately in the second and sixth weeks after the surgery. Also the absolute number and percentages of each of the failures’ causes were determined. According to the check lists, the number of patients with failed crown lengthening because of wrong case selection and poor plaque control were recorded. Data were analyzed using descriptive statistical methods and Chi-square test. Statistically significant differences among groups and within groups were set at P<0.05. Results: The prevalence of failure of crown lengthening surgery in patients referring to the Periodontics Department was 16% after 6 weeks. the absence of enough keratinized gingivae around the teeth(43.8%), presence of granulation tissue around the tooth(0 %), subsequently had maximum and minimum prevalence of early failure. Absence of enough kratinized gingivae around the teeth was the most prevalent cause of early failure of crown lengthening surgery in both of the evaluation periods(2 and 6 weeks). Conclusions: According to the results of our study absence of enough keratinized gingivae around the teeth was the most prevalent cause of early failure of crown lengthening surgery. Then more attention should paid to this issue while crown lengthening surgery. |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| IMG_0019.jpg | 1396/02/06 | 1037902 | دانلود |
| poster.pptx | 1395/07/28 | 209980 | دانلود |