Ashbyayers7484
During functional neck dissection, the surgeon tries to preserve the internal jugular vein (IJV); however, the incidence of its narrowing or obstruction following modified radical neck dissection (MRND) or selective neck dissection (SND) varies between 0% and 29.6%. The most distressing complication of IJV thrombosis (IJVT) is pulmonary embolism. This study aimed to evaluate the incidence of IJVT following selective or modified radical neck dissection.
In this study, 109 neck dissections were performed with the preservation of the IJV on 89 patients from March 2011 to December 2012 in the Cancer Institute of Imam Khomeini Hospital Complex, Tehran, Iran. Ultrasound evaluation of the IJV was performed in the early postoperative period and three months after the surgery.
The study population consisted of 62 male and 27 female patients with a mean age of 57+17.57 years. Ultrasound evaluation of the IJV among the participants (109 veins) indicated thrombosis in nine veins (8.25%) in the early postoperative period, four of which remained thrombotic and without flow three months after the surgery. Moreover, 96.33% of the IJVs were patent with a normal blood flow three months after the neck dissection. Among the evaluated IJVs, the only factor that showed a significant association with IJVT was the incidence of postoperative complications, including hematoma and seroma (P=0.01).
It seems that the most important factor for the prevention of the IJVT is a meticulous surgery and surgical complication avoidance during neck dissection.
It seems that the most important factor for the prevention of the IJVT is a meticulous surgery and surgical complication avoidance during neck dissection.
Tympanoplasty is a surgical treatment of tympanic membrane perforation. Many efforts have been made to increase the success rate of tympanoplasty. Some studies confirmed the positive role of estrogen in wound healing. The current study was conducted to evaluate the effect of topical estrogen on the success rate of tympanoplasty.
A total of 85 patients were randomly assigned to the case and control groups. Otomicroscopic examination was performed before and 3 months following the operation. At the final stage of tympanoplasty, gelfoam was placed on the lateral side of the graft. It was soaked in dexamethasone in the control group and combination of dexamethasone and estradiol valerate solution in the case group. Hearing thresholds were measured by audiometric tests pre- and postoperatively. Hearing levels were assessed as the mean air conduction (AC) at 500, 1000, and 2000 Hz. Vorinostat solubility dmso The graft status was evaluated using otomicroscopic examination 3 months following the operation.
Otomicroscopic examination revebrane perforations.Recently, the use of infrared thermography in medical has been increasingly developed and widely used in medical devices to detect diseases, including one used in the field of dentistry, which can be used to detect joint conditions in case of temporomandibular disorder (TMD). Some literature has shown this method of infrared thermography was used to determine the surface temperature of the skin based on the emission of infrared radiation from the body. Thermal measurement is also a noninvasive method that does not provide patient inconvenience, but its application until now has not been so wide. The case study reported on the description of thermal condition of muscle area around temporomandibular joint (TMJ) in a 42-year-old woman with systemic lupus erythematosus (SLE) disease. She had experienced TMD. Infrared thermography is applied to observe the thermal condition of the muscle area around the right and left joints by thermal detection. Thermal measurement was obtained on infrared image capture, and the temperature difference was found to be greater than 0.3°C. Several studies have shown that temperature in the area around TMJ was higher, and thermal asymmetry was greater in individuals with joint disorder/TMD when compared with normal groups.
The purpose of this study was to compare the retention properties between fiberglass pins with chemically activated acrylic resin and metallic intraradicular retainers often used for the purpose of temporary prosthetic retention.
Two mechanical tests, pushout and traction, were performed on specimens distributed in three groups (
= 10) for each test; two metal pins G1 Metalpin Ângelus and G2 Provisional Pivot Jon in addition to one fiberglass pin G3 Whitepost DC-E, FGM. One-way analysis of variance (ANOVA) followed by Tukey's
test was used at the level of significance α = 0.05.
The fiberglass pins (G3) showed higher values in the traction test than the metal pins (G1 and G2) with a statistically significant difference (
< 0.05); however, they performed similarly to the metal pin groups in the pushout test (
> 0.05). They also presented a lower occurrence of failure in the relining acrylic resin.
The study pointed out the use of fiberglass pins as suitable alternatives for provisional intracanal metallic retainers.
The study pointed out the use of fiberglass pins as suitable alternatives for provisional intracanal metallic retainers.
Despite the widespread of assessment of smile aesthetic perception in many areas, there has yet to be a direct comparison of digital and paper-based photographs for the assessment of smile aesthetics. Here we compared digital and paper-based photographs representing different smile aesthetic features using visual analog scale (VAS) scoring.
One hundred students were randomly recruited from a university campus. Participants were asked to record their perception of smile aesthetics via paper and digital-based platforms. The minimum clinically important difference between platforms was set at 15 mm. The percentage of participants who rated smile attractiveness worse on digital images was recorded. The paired one-tailed Student's
test was used to determine differences between digital and paper platforms, and Bland-Altman analysis and intraclass correlations (ICCs) were used to test for agreement between paper and digital photographs.
Ninety-nine subjects participated, 55 men (mean age = 22.05, standard deviation [SD] = 1.
