Comparison of Patient Satisfaction between Invisible Appliance and Fixed Orthodontic Appliances - A Systematic Review.

To compare the patient acceptance between fixed orthodontic appliances and clear aligners. An electronic search was completed in PubMed, Cochrane Database, Web of Science, Scopus, Lilacs, Google Scholar, and Open Grey databases without any restrictions until August 23. All comparative study types contrasting patient perception between clear aligners and fixed appliances were included. After removal of duplicates, exclusion by title and abstract, and reading the full text, only eight articles were included. The studies used an observational questionnaire study design. Of the observational studies, one was retrospective and three prospective, one online survey, and the other three cross sectional. Though the response varied in terms of patient preference and acceptance, it was found that clear aligners have a positive impact with respect to quality of life, tolerance, and improved confidence. However, there is not enough evidence to make a final conclusion about treatment outcomes.

Antibacterial, antioxidant and anti-inflammatory activity zinc-titanium dioxide nanocomposite.

The current study concentrated on the green synthesis of Zinc-titanium dioxide nano-composite (Zn-TiO2 NC) through the use of lemon extract, optimizing the different experimental factors required for the formation and stability of nanocomposite. The preparation of nanocomposite was confirmed by the observation of the colour change and the surface plasmon resonance band was found at 380 nm, utilizing UV-Visible analysis. The TEM analysis, the morphological features of the prepared nanocomposite was identified to be spherical shape with mean particle size of 25 nm. In addition, the antibacterial, antioxidant, and anti-inflammatory activity of this nano-composite were also investigated. The biosynthesized nanocomposite showed excellent antibacterial activity against S. mitis and S. mutans. The obtained results indicate that the antioxidant and anti-inflammatory activity of this nanocomposite is significant. This bioactive nanocomposite can be used as an effective antibacterial, antioxidant and anti-inflammatory agent in biomedical and pharmacological fields for future applications.