Brushing and flossing are the most used and accepted procedures, the "gold standard", to control bacterial plaque, but these mechanical methods have limitations. The purpose of this research was to determine the in vitro antibacterial effect of a mouthwash made with Moringa extract on Streptococcus mitis. Materials and methods: The sample consists of 74 ml of water-based moringa extract on which the antimicrobial effect of S mitis was analyzed by means of an implant in agar for 24 hours to determine a process of interruption of development of S. mitis. Results: A 5.8 cm bacterial growth inhibition halo of S. mitis was obtained with the use of the moringa aqueous extract against 6.6 cm of 0.12% chlorhexidine. Conclusion: the aqueous extract of Moringa Oleifera has an inhibition of bacterial growth with statistically favorable results, although to a lesser extent than chlorhexidine.
Introduction: Type IV dental fluorosis compromises the aesthetic and psychological expectations of patients. The main cause is excessive intake of fluoride during dental development. Conservative treatments for the removal of some pigmentations are microabrasion and combination with tooth whitening. There are new products on the market, such as Antivet®, which is proposed in this study for comparison with other treatments. Materials and methods: 12 dental organs were stored in 0.2% thymol at 37°C, which were divided into 4 groups. Group 1 (OP): (n=3) Opalustre®, group 2 (OP+PH): (n=3) treated with Opalustre® adding Whiteness HP Maxx 35%®, group 3 (ANT) (n=3): treated with Antivet® and group 4 (ANT+PH): (n=3) treated with Antivet® and Whiteness HP Maxx 35%®. Microabrasion was performed with Opalustre® for 60 seconds at 10 intervals for a total of 10 minutes of exposure. The abrasion with Antivet® was carried out for 10 minutes, at the end the neutralizing solution of the same treatment was placed for one minute. Whiteness HP Maxx 35%® was applied seven days after the treatments with Opalustre® and Antivet®, for 15 minutes, making 2 more applications for a total of 45 minutes of exposure. The specimens were taken to SEM/EDS (JEOL FE-SEM JSM-7800F) and color measurements were taken with VITA EasyShade V ® spectrophotometer. Statistical process control: The Kolmogórov-Smirnov test, analysis of variance (ANOVA) was performed with a significance level of .05 in the statistical package IBM SPSS Statistics 23. Results: in the ANT group, SEM images show the loss of the aprismatic layer and an etched surface in which the periphery of the enamel prisms appeard removed. On the ANT+PH group an etched surface was observed around the enamel rods, slight erosion and porosity on the enamels surface. In the mineral content there was a statistically significant difference between the study groups of the minerals C, P, F and Ca (p < 0.05) For the color measurement, there was a statistically significant difference in the ΔE value between the OP group compared to the ANT group with a p-value of 0.031, being the highest value in ANT. Conclusion: The Antivet® treatment showed a more significant favorable color change in the L*, a*, and b* values, as well as an increase in the concentration of Ca and P.
Teeth whitening plays an important role in the acceptance of patients for cosmetic dental treatments. When tooth whitening is unfavorable, adhesive resins are used, however, these are diminished by residual oxygen, which is eliminated with antioxidant substances after bleaching. The purpose is to assess the effectiveness of teeth whitening after placement of 10% sodium ascorbate. Materials and methods: It was an experimental, in vitro and comparative study of two groups of 11 premolar samples each; with longitudinal measurement of the effectiveness of hydrogen peroxide (38%) after the application of sodium ascorbate (10%), subjecting it to a color check using the Vita®Easy Shade spectrophotometer based on the Vitapan Classical® colorimeter measurement scale. The statistical program IBM SPSS STATICS 23 was used. Results: It was observed that the use of 38% hydrogen peroxide bleaching after the application of an antioxidant such as 10% sodium ascorbate does not present statistically significant changes, which indicates that indeed the use of an antioxidant after bleaching It does not affect its effectiveness. Conclusion: 10% sodium ascorbate does not affect the effectiveness of 38% hydrogen peroxide bleaching in any of the time periods evaluated in the present study.
A clinical case is described of a 17-year-old patient who suffered a trauma at the age of 8, compromising the upper right incisor, which prevented complete apical closure and the presence of a periapical lesion. The patient reports having interrupted the root canal treatment one year ago, in the diagnostic periapical radiograph the endodontic treatment already started is confirmed and temporary crown filling material is observed, the presence perhaps of calcium hydroxide inside the root canal, incomplete apical formation and a periapical radiolucent lesion. Root canal treatment was resumed using K-type manual files until reaching a #140 apical caliber, 5.25% sodium hypochlorite was used as irrigant, Ultrapex (Ca(OH)2 + Iodoform) was placed as intracanal medication for several months. Two years after resuming treatment, the patient was asymptomatic, and in the control periapical radiograph it was possible to observe the considerable decrease in the periapical lesion, therefore it was decided to obturate using the classic lateral condensation technique, AH Plus sealant and previous at this stage, 4mm of MTA was placed as an apical barrier. Conclusions The importance of using intracanal medication in situations of dental necrosis with a periapical lesion of considerable size is shown through this clinical case. This case was caused due to dental trauma which, as we know, can evolve in very different ways and in many situations the dental prognosis ends up being very unfavorable. In addition, because it is an immature apex, the use of an MTA apical barrier was essential for containing the filling materials to avoid their extrusion into the periapical tissues and ensuring a better sealing in the apical third.
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