EFFECT OF NANO TITANIUM DIOXIDE ON SELF-CLEANING AND ANTIBACTERIAL PROPERTIES OF DENTAL MIRRORS

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TAVASSOLI HOJJATI SARA; MAHDAVI MOHAMMAD; HAMZEH FAEZEH; REZVANI MOHAMMAD BAGHER; AHMADIAN BABAKI FATEMEH; SADERI HOORIEH; KHARAZIFARD MOHAMMAD JAVAD

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Journal: Journal of Dental School Year:2013 | Volume:31 | Issue:2 (98) Page(s): 104-112

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Title

EFFECT OF NANO TITANIUM DIOXIDE ON SELF-CLEANING AND ANTIBACTERIAL PROPERTIES OF DENTAL MIRRORS

Author(s)

Keywords

DENTAL MIRRORQ2

NANOPARTICLESQ2

TITANIUM DIOXIDEQ2

SELF-CLEANING PROPERTYQ2

ANTIBACTERIALQ2

COATING MATERIALSQ2

Abstract

Objective: Surface coating of DENTAL MIRRORs using nanotechnology has been done to render them self-cleaning properties. Nano-scaled TITANIUM DIOXIDE particles (Ti02)show antimicrobial properties when exposed to ultra-violet (UV) light. The aim of this study was to evaluate the effect of surface coating of DENTAL MIRRORs with nano TITANIUM DIOXIDE on their self-cleaning (from dentists' perspective) and ANTIBACTERIAL properties against Streptococcus mutans and Staphylococcus aureus.Methods: In this laboratory study, nano structured TITANIUM DIOXIDE films were used for surface coating of half the understudy DENTAL MIRRORs using sol-gel dip coating technique. To assess the self- cleaning property, 45 conventional and 45 nano Ti02 coated mirrors were coded. The two types of DENTAL MIRRORs were compared by dentists during cavity preparation with a high speed hand piece and the related questionnaire was filled out. The opinions of 9 clinicians each comparing the DENTAL MIRRORs on 5 patients were collected. For antimicrobial testing, a 0.5 Mcfarland standard of microbial suspension and 100 times dilution of the solution were prepared of the two understudy microorganisms; 50 ml drop of each dilute was transferred to the center of each DENTAL MIRROR in the two groups. DENTAL MIRRORs were exposed to UV light for 30, 60, 90 and 120 min (3 mirrors in each group for each time period) and then immersed in 5ml of distilled water. Next, 50ml of the mentioned solution was cultured on blood agar culture medium. Number of colonies was counted after 24h. T- test with a significance level of 0.01 was used for microbial evaluation. Normal distribution tests (NPAR tests) were used for the assessment of improved vision and Friedman test was applied for comparison of the two groups.Results: No statistically significant difference was found between the two groups in terms of ANTIBACTERIAL properties against S. mutans and S. aureus (P>0.05). No significant difference existed between the two types of mirrors in terms of clinical vision improvement from the dentists' perspectives (P>0.05).Conclusion: Nano Ti02 coated mirrors did not have any superiority over the conventional types in terms of self-cleaning or antimicrobial properties.

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APA: Copy

TAVASSOLI HOJJATI, SARA, MAHDAVI, MOHAMMAD, HAMZEH, FAEZEH, REZVANI, MOHAMMAD BAGHER, AHMADIAN BABAKI, FATEMEH, SADERI, HOORIEH, & KHARAZIFARD, MOHAMMAD JAVAD. (2013). EFFECT OF NANO TITANIUM DIOXIDE ON SELF-CLEANING AND ANTIBACTERIAL PROPERTIES OF DENTAL MIRRORS. JOURNAL OF DENTAL SCHOOL SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCE, 31(2 (98)), 104-112. SID. https://sid.ir/paper/21756/en

Vancouver: Copy

TAVASSOLI HOJJATI SARA, MAHDAVI MOHAMMAD, HAMZEH FAEZEH, REZVANI MOHAMMAD BAGHER, AHMADIAN BABAKI FATEMEH, SADERI HOORIEH, KHARAZIFARD MOHAMMAD JAVAD. EFFECT OF NANO TITANIUM DIOXIDE ON SELF-CLEANING AND ANTIBACTERIAL PROPERTIES OF DENTAL MIRRORS. JOURNAL OF DENTAL SCHOOL SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCE[Internet]. 2013;31(2 (98)):104-112. Available from: https://sid.ir/paper/21756/en

IEEE: Copy

SARA TAVASSOLI HOJJATI, MOHAMMAD MAHDAVI, FAEZEH HAMZEH, MOHAMMAD BAGHER REZVANI, FATEMEH AHMADIAN BABAKI, HOORIEH SADERI, and MOHAMMAD JAVAD KHARAZIFARD, “EFFECT OF NANO TITANIUM DIOXIDE ON SELF-CLEANING AND ANTIBACTERIAL PROPERTIES OF DENTAL MIRRORS,” JOURNAL OF DENTAL SCHOOL SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCE, vol. 31, no. 2 (98), pp. 104–112, 2013, [Online]. Available: https://sid.ir/paper/21756/en

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