Dental and skeletal changes in mild to moderate Class II malocclusions treated by either a Twin-block or Xbow appliance followed by full fixed orthodontic treatment

Objective:To compare the short-term skeletal and dental effects of two-phase orthodontic treatment including either a Twin-block or an XBow appliance.Materials and Methods:This was a retrospective clinical trial of 50 consecutive Class II cases treated in a private practice with either a Twin-block (25) or XBow (25) appliance followed by full fixed orthodontic treatment. To factor out growth, an untreated Class II control group (25) was considered.Results:A MANOVA of treatment/observation changes followed by univariate pairwise comparisons showed that the maxilla moved forward less in the treatment groups than in the control group. As for mandibular changes, the corpus length increase was larger in the Twin-block group by 3.9 mm. Dentally, mesial movement of mandibular molars was greater in both treatment groups. Although no distalization of maxillary molars was found in either treatment group, restriction of mesial movement of these teeth was seen in both treatment groups. Both treatment groups demonstrated increased mandibular incisor proclination with larger increases for the XBow group by 3.3°. The Wits value was decreased by 1.6 mm more in the Twin-block group. No sex-related differences were observed.Conclusions:Class II correction using an XBow or Twin-block followed by fixed appliances occurs through a relatively similar combination of dental and skeletal effects. An increase in mandibular incisor inclination for the XBow group and an increased corpus length for the Twin-block group were notable exceptions. No overall treatment length differences were seen.     

Effects of Boiled Dill Seed on Anxiety During Labor: A Randomized Controlled Trial

Objective: To evaluate the effect of boiled dill seed (Anethum graveolens) on anxiety during childbirth compared with oxytocin. Methods: This study was a randomized controlled trial with 100 pregnant women who were assigned to the oxytocin (50 cases) and the boiled dill seed (50 cases) group by a table of random number. In the boiled dill seed group, 10 g of dill seed was boiled in 100 mL for 10 min and was given to women after filtration once orally at the beginning of active phase. In the oxytocin group, 10 IU of oxytocin in 1000 mL of Ringer solution was prescribed according to the clinical routine. The State-Trait Anxiety Inventory (STAI) in both groups before (at the beginning of the active phase) and after (6 h after the delivery) was completed. Meanwhile, pain intensity and duration of labor, dilatation and effacement scores, Apgar score of newborns, and FHR were measured and evaluated. Results: No statistically significant differences were shown in obvious anxiety scores between the two groups at baseline (P>0.05). After the delivery, in the boiled dill seed group, the number of women with severe [0 vs. 8.0% (4/50)] and almost severe [0 vs. 14.0% (7/50)] trait and almost severe [0 vs. 14.0% (7/50)] state anxiety was lower than those in the control group (P=0.050, P=0.041, respectively). Moreover, labor was shorter in the 1st (P<0.01), 2nd (P=0.78) and 3rd (P=0.10) stages in the boiled dill seed group compared to the control group. Conclusions: Dill seed could be used as an effective treatment to reduce anxiety during labor. Dill seed can be effective in reducing the length of labor. Due to lack of maternal and fetal complications, the boiled dill seed could also be used to reduce cesarean section rates in women who are fearful and anxious of delivery. (RCT Code: IRCT201607177065N2)     

Ultrasound-guided simultaneous irrigation and drainage of facial abscess

The establishment of drainage and the elimination of the origin of infection are essential procedures for successful management of odontogenic infections. Irrigation and aspiration are considered as the 2 main procedures for the treatment of facial space infections; we invented a new method named simultaneous irrigation and aspiration. The simultaneous irrigation and aspiration method is significantly less painful and less invasive compared with the standard surgical incision and drainage. This method was thought to be useful for managing facial infections if proper patient selection is performed.     

Prooxidant-Antioxidant Balance and Antioxidized LDL Antibody Level Values and Cardiac Function in Patients with Coronary Artery Disease

Objectives: We studied the association between the prooxidant-antioxidant balance (PAB), anti-malondialdehyde-modified low-density lipoprotein (oxidized LDL, ox-LDL) IgG antibody and indices of cardiac function (systolic and diastolic function) in patients with coronary artery disease (CAD). Methods: Fifty-five patients with established CAD were selected, and serum levels of anti-ox-LDL IgG and PAB values were measured and compared with 40 matched healthy controls. Systolic and diastolic functions were determined for all patients. Results: PAB values were significantly higher in patients than in controls (p < 0.001), whilst serum anti-ox-LDL concentrations were not statistically different between the 2 groups (p = 0.821). However, after adjustment for high-density lipoprotein cholesterol, the patients had higher anti-ox-LDL levels (p = 0.04). Total PAB values were inversely associated with ejection fraction (r = -0.326, p = 0.031), but this was not the case for anti-ox-LDL in either group (p > 0.05). Conclusion: Serum concentrations of a marker of oxidative stress (PAB values) are inversely associated with cardiac function. PAB is a relatively simple index that could be incorporated into risk assessment in CAD patients. Anti-ox-LDL IgG antibody concentration does not appear to reflect total oxidative stress as assessed by PAB.     

Histopathological changes of gastric mucosa following oral administration of fumonisin B1 in mice

Fumonisin B1 is a common secondary metabolite produced by Fusarium moniliforme that occurs in corn and corn-based foods. This mycotoxin is toxic to many species of laboratory and domestic animals and is known to induce a variety of diseases such as hepatic cancer and renal and hepatic dysfunction. The structure of fumonisin B1 (FB1) resembles sphingolipids so it can inhibit synthesis of ceramide, an enzyme in the sphingolipid biosynthetic pathway. This inhibition leads to the disruption of sphingolipid metabolism and increased levels of sphinganine and sphingosine (sphingoid bases) in the serum of treated animals. It is believed that the toxicity effect of fumonisin B1 is the result of these sphingoid bases. In the present research, mice were treated with FB1 to determine its pathological effects on gastric gland and gastric mucosa in the treated mice. For this purpose, the mice were randomly assigned into two groups, namely, control (n?=?14) and treatment (n?=?15). The treatment group was fed with prepared food containing FB1 (150 mg/kg) for a period of 4 months. One day after the last treatment, all animals in both groups were euthanized and their stomach were sampled and prepared for microscopic analysis. Histopathological analysis revealed a significant decrease in parietal cell number and a significant increase in the number of inflammatory cells in gastric mucosa. Also, atrophy of gastric glands was observed. The study confirmed that FB1 poisoning can have toxicopathological effects such as gastric gland atrophy and gastritis on mice gastric tissue.