RESUMEN
Considering the important role of molars in masticatory function and in order to prevent rapid residual ridge resorption in the postextraction phase, it is necessary to replace these teeth in an appropriate way as soon as possible. This study was conducted to evaluate the outcome of immediate tapered wide platform implants instead in molar sockets one year following loading in a private clinic in year 1388-89.This descriptive study was carried on 12 samples of first and second molars of 10 patients with average of 46 +/- 4.71 years, which had referred on year 1387.Immediately after extraction, tapered platform implants were placed. One year following loading, the stability of implants was evaluated by means of periotest. Clinical evaluation was based on: pain, infection and pus drainage. In order to determine crestal bone changes parallel periapical radiographs were taken. Data were analyzed by t-test. None of the samples showed pain, infection, pus drainage or continues radiolucency. The average PTV [Perio Test Value] was-2.81 +/- 1.6 with average of-1 to-6 was indicator of no mobility in implants. The average crestal bone change was 0.22 +/- 0.01 min. Installation of tapered wide platform implants at the time of molar extraction maybe successful with ideal case selection and proper surgical procedure
RESUMEN
Statement of Problem: Due to the significant correlation between salivary AST activity and periodontal disease, AST activity can be used as a useful marker for monitoring of the periodontal disease
Purpose: The aim of this study was to determine whether the initial phase of periodontal treatment could modify the salivary AST level in patients with moderate to severe periodontitis referred to Periodontics Department of Islamic Azad University, Dental school Tehran [1386]
Materials and Method: In this clinical trial study [before and after], 33 patients [mean age of 45 +/- 9.75] with moderate to severe periodontitis were selected. Plaque index, pocket depth, clinical attachment level, bleeding on probing and salivary AST were determined before and two months after the initial phase of periodontal treatment for all patients. The effects of treatment were assessed by Paired-T and Wilcoxon Sign tests
Result: Following phase I periodontal treatment, plaque index, pocket depth, clinical attachment level and bleeding on probing decreased significantly [ p <0.05]. Salivary AST changed from 40.3 +/- 15.5 to 32 +/- 12.1 [ p <0.01]
Conclusion: Based on the statistically significant decrease in the salivary AST level after the initial phase of periodontal treatment, this biochemical marker may be used for evaluation of periodontal treatment