ABSTRACT
Background: Salvia multicaulis Vahl. a medicinal plant belonging to the Lamiaceae family, has an extensive application in native and traditional medicine
Objective: This research was conducted to investigate diversity of morphophysiological traits and content of essential oil, phenol and flavonoid of Salvia multicaulis ecotypes in different districts of Hamedan province, Iran
Methods: In this study, 11 ecotypes of Salvia multicaulis were collected from different districts of Hamedan Province at the full flowering stage in spring 2016 and were evaluated for their morphophysiological and phytochemical characteristics. The classification of ecotypes was done on the basis of phytochemical and morphophysiological traits by cluster analysis and correlations among quantitative traits was also conducted by Pearson method
Results: Result showed that the essential oil content had positive significant correlation with plant height, inflorescence length, dry matter of flowering branche and essential oil yield. Also there was a positive significant correlation between essential oil yield with receptacle length, flower fresh and dry matter and plant dry matter. The heighes dry weight of flowering branch and flower was related to ecotypes of Lashkardar and west of Hamedan, respectively. The maximum plant dry weight was belong to Yelfan ecotype. The most essential oil content was related to Lashkardar and west of Hamedan ecotypes. Also, the highest content of phenol and flavonoid related to Vehnan ecotype. According to the cluster analysis, 11 ecotypes were divided into two groups
Conclusion: The evaluation of morphophysiological and phytochemical traits showed that there was a considerable variation among different ecotypes of Salvia multicaulis in respect of morphophysiological and phytochemical characteristics
ABSTRACT
The purpose of this study was to evaluate the diagnostic precision of zoom option of Cygnus Ritter CCD intraoral digital sensor compared to original digital radiography in the detection of occlusal dentinal caries. Eighty-six extracted premolars with no apparent clinical caries were selected. Two methods were used for radiography; namely, digital radiography using a Cygnus Ritter CCD sensor and then zoom option was applied to the original radiographs. Four maxillofacial radiologists observed the original digital and the same radiographs with zoom option to detect occlusal dentinal caries subsequently recording it in a five-grade scale. Microscopic sections evaluated by a pathologist were used as the gold standard for caries detection. The data were analyzed with a proportion test and processed with SPSS maxillofacial 14 soft ware. Statistical analysis showed a sensitivity of 52.2% [71] [CI: 95%] for zoom option in the detection of occlusal dentinal caries [P<0.05]. The specificity was shown as 68.8% [143] [P>0.05]. The ppv was calculated as 52.2% [179] [P<0/.05] and npv as 68.8% [236] [P<0.05] and the accuracy was 62.2% [214] [P<0.05]. The zoom option of Cygnus Ritter CCD sensor showed a significantly higher diagnostic sensitivity, ppv, npv and accuracy compared to original digital radiographs, but the zoom option of that sensor did not show a significantly higher diagnostic specificity compared to original digital radiographs
Subject(s)
Radiography, Dental, Digital , Radiographic Image Enhancement , Image EnhancementABSTRACT
Background: Skin thickness has an important role in aesthetic results of rhinoplasty. Currently, some surgeons employ defatting technique to reduce subcutaneous tissues and decrease the thickness of skin during rhinoplasty
Objective: The aim of this study was to compare the nasal tip skin thickness with and without nasal tip skin defatting technique and to further evaluate the long term effects of this technique on rhinoplasty patients by sonography
Methods: In a case-control study, 111 rhinoplasty candidates were evaluated at a university referral hospital in northern Iran during January to August 2010. Before operation, all patients were investigated through physical exams. Later, the skin thickness of the tip and supra tip were measured by sonography. Patients with moderate to thick nasal skin were randomly allocated to case and control groups for defatting. Sonography results of 44 patients, obtained one and 12 months after the surgery, were compared with those found in two groups before the surgery using Wilcoxon test and Repeat Measure test
Findings: A total of 111 patients with mean age of 25.1 +/- 7.6 years including 16 [14.4%] men and 95 [86.6%] women were enrolled. Based on physical examinations, the skin type was thin in 20 [18.9%], moderate in 68 [59.4%], and thick in 23 cases [21.7%]. Considering the sonography results, the skin type was thin in 7 [6.8%], moderate in 83 [80.6%], and thick in 13 cases [12.6%]. There was no significant difference in the thickness of tip and supra tip skin between defatted cases and control group measured before surgery and within the follow-up period
Conclusion: Based on results found through this study, Sonography is a precise instrument in assessing the nasal skin thickness before rhinoplasty. Defatting technique was shown to be of no effect on reduction of skin thickness of tip and supra tip in moderate or thick skins following rhinoplasty
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Despite their names, simple bone cysts are no longer categorized as cysts since they lack an epithelial lining. However, their nature remains controversial. The internal structure is totally radiolucent, sometimes showing multilocular appearance, although the lesion does not contain true septa and the ridges of bone is produced by the scalloping effect. We presented two cases of histopathologically confirmed simple bone cyst. Radiographic features such as multilocular appearance and significant buccal and lingual expansion are not usual findings for simple bone cyst, whereas evident in our presented cases
Subject(s)
Humans , Female , Mandible/abnormalities , Radiography, PanoramicABSTRACT
Statement of problem: One of the major problems in composite restorations is polymerization shrinkage leading to microleakage, hypersensitivity, recurrent carries, pulpal inflammation, and later pulp necrosis. To overcome these problems, different photo-activation methods have been employed to prolong the plastic phase during polymerization
Purpose: To investigate the mircoleakage in 3 groups of Pulse, Ramp and conventional LED photo-polymerization methods in class V composite restorations
Materials and Method: Twenty one freshly extracted human premolars were categorized in 3 groups of 7 each. Slot shaped class V cavities [4 x 2 x 2 mm] were prepared on both buccal and lingual surfaces of the teeth, with occlusal margins on the enamel and gingival margins 1mm below the CEJ. The cavities were restored with single bond and Z[100] composite [3M ESPE,USA] and cured in group A with Ramp, group B with Pulse mode, and group C with Conventional mode using Apoza LED Turbo light Curing unit. After one day storage in 37[degree sign]C water and thermo cycling for 1000 cycles, the teeth were sealed with nail varnish 1 mm short of margins, immersed in AgNo3 50% W and then developed in solution. The specimens were cut and evaluated by Stereo microscope at 40 x magnification. The results were statistically analyzed by kruskal- Wallis test
Results: None of the specimens revealed microleakage at the occlusal margins but 69.2% of the specimens in Ramp group, 76.9% in the Pulse group and 61.5% in the conventional group showed score 1 gingival microleakage. Also, 30.8% in the Ramp and Conventional and 23.1% in the Pulse group showed score 2 gingival microleakage. Analysis of the data among the 3 groups revealed no statistically significant differences. [ p = 0.640]
Conclusion: Based on the limitations of this study: 1- All of LED photoactivation modes using Apoza LED turbo unit prevent microleakage in the enamel margins. 2- None of the photoactivation modes can prevent microleakage in the gingival margins completely. 3- For Z[100] [microhybrid composite], all of the 3 employed methods were equally effective in microleakage reduction
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Osteopetrosis is a rare skeletal disorder that results from a defect in the differentiation and function of osteoclasts. The lack of normally functioning osteoclasts results in abnormal formation of the primary skeleton and a generalized increase in the bone mass. This disorder is inherited as an autosomal recessive [osteopetrosis congenita] and an autosomal dominant trait [osteopetrosis tarda]. In this article, we report four cases of malignant osteopetrosis and describe the clinical and dental radiographic findings associated with this rare disease
Subject(s)
Humans , Child , Male , Female , Osteopetrosis/diagnosis , Radiography, PanoramicABSTRACT
intubated patients with the aim of cleaning airway for good oxygenation. The aim of this study was to evaluate the effects of intratracheal suctioning on blood pressure, heart rate, and arterial oxygen saturation. Intratracheal suctioning is a standard method of nursing care for admitted to intensive care unit of Kashani teaching center of Shahr-e-kord University in 2005. The data were collected by a questionnaire form 35 patient by observation and measurement of blood pressure, heart rate and arterial oxygen saturation. This was a semi-experimental research in which the patients and heart rate increased and arterial oxygen saturation decreased significantly, when compared with pre-suctioning period. The same occurred when these parameters were compared between pre-suctioning period and 1 minute post-suction, except for arterial oxygen saturation that had not statistically significant decline, 1 minute after suctioning. The parameters under study remained increased [including arterial oxygen saturation that decreased during suctioning] 3 minutes after suctioning, but this increase was not statistically significant when compared with pre-suctioning period. The study showed that parameters in 1 and 3 minutes after suctioning were also significantly different from those of suctioning period. The findings showed that during suctioning, systolic pressure, diastolic pressure, pressure and heart rate [increase] and arterial oxygen saturation [decrease] occurs during suctioning and maximum changes of blood pressure and heart rate [decrease] and arterial oxygen saturation [increase] occurs 3 minutes after suctioning. Therefore, hyper oxygenation, hemodynamic and SpO2 monitoring before, during and after suctioning are recommended. The finding of this research showed that the maximum changes of blood
Subject(s)
Humans , Suction , Hemodynamics , Blood Gas Monitoring, Transcutaneous , Intubation, Intratracheal , Blood Pressure , Heart Rate , Intensive Care Units , OximetryABSTRACT
Hypertension is one of the most prevalent diseases that, causes lots of complications, it is not controlled. Sufferers should change their life style and avoid the risk factors. The aim of this research is to determine the hypertension rate and it's risk factors in elders of Yasouj in 2005. This is a descriptive analytical and cross-sectional study. Convenient sampling was done which was consisting of all elders above 60 referred to the health centers during the first six months of the year. Data collection instrument was questionnaire and also scale, meter and sphygmomanometer was used to determine weight, height and blood pressure. Collected data were analyzed using SPSS software and descriptive and inferential statistics such as ; analysis of variance and x2 tests. 286[47 .4%] of elders were suffering from HTN out of which 233[38.6%] had HTN history and 53[8.8%], did not have any knowledge of their HTN. The BMI mean in elders with high blood pressure was 94.1 +/- 3.3 and in others, it was 23.1 +/- 2.3. The average weekly use of meat, eggs and smoking of patients with high blood pressure as compare to those with normal blood pressure did not show significant difference. Considering the risk factors of hypertension the necessity of screening and educating elders by health personnels to improve their life style is felt
ABSTRACT
Otosclerosis [OS] is the most common cause of conductive hearing loss in young population, and we determined incidence of OS among 1st and 2 nd degree relatives of surgically proved otosclerotic patients. In a cross sectional study among 43 surgically proved otosclerotic patients, positive family history of OS was determined. In suspicious cases, physical exam, tunning fork tests, and audiometry were performed. We also reviewed medical sheaths of admitted OS patients from 1995 to 2003 in Isfahan university hospitals for family history of OS. Among 15 otosclerotic patients [34.88%] with positive family history of OS, 14 individuals of their first and second degree relatives had clinical and audiometric otosclerosis. Among 85 medical record sheaths of otosclerotic patients, 12 patients [27.9%] had positive family history for OS. The incidence of clinical and audiometric otosclerosis among first and second degree relatives of OS patients is nearly similar to the rate of positive family history of our patients, which is relatively lower than other studies