| Full text | |
| Author(s): Show less - |
Barao, Valentim A. R.
[1]
;
Ricomini-Filho, Antonio P.
[2]
;
Faverani, Leonardo P.
[3]
;
Del Bel Cury, Altair A.
[1]
;
Sukotjo, Cortino
;
Monteiro, Douglas R.
[3]
;
Yuan, Judy Chia-Chun
[4]
;
Mathew, Mathew T.
[5]
;
do Amaral, Regiane C.
[6]
;
Mesquita, Marcelo E.
[1]
;
da Silva, Wander J.
[1]
;
Assuncao, Wirley G.
[3]
Total Authors: 12
|
| Affiliation: | [1] Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, BR-13414903 Sao Paulo - Brazil
[2] Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Physiol Sci, BR-13414903 Sao Paulo - Brazil
[3] Univ Estadual Paulista UNESP, Dept Dent Mat & Prosthodont, Aracatuba Dent Sch, BR-16015050 Sao Paulo - Brazil
[4] Univ Illinois, Coll Dent, Dept Restorat Dent, Chicago, IL 60612 - USA
[5] Rush Univ, Dept Orthoped Surg, Med Ctr, Chicago, IL 60612 - USA
[6] Univ Campinas UNICAMP, Dept Publ Hlth, Piracicaba Dent Sch, BR-13414903 Sao Paulo - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Materials Science & Engineering C-Materials for Biological Applications; v. 56, p. 114-124, NOV 1 2015. |
| Web of Science Citations: | 17 |
| Abstract | |
Although smoking promotes deleterious effect to bone healing, there is a lack of study investigating its role on the implant structure and biofilm growth. We hypothesized that nicotine, cotinine and caffeine would impair the corrosion resistance of commercially-pure titanium (cp-Ti) and would enhance Streptococcus sanguinis biofilm growth. Neither the smoking products nor the caffeine affected the corrosion tendency (P>.05) and the oxide layer resistance (P=.762) of cp-Ti. Lower capacitance values were noted in the presence of nicotine (P=.001) and cotinine (P=.0006). SEM showed no pitting corrosion, and the EDS spectra did not differ among groups. Nicotine (300 mu g/mL) induced higher surface roughness (P=.03) and greater surface change of cp-Ti. Nicotine at 3 mu g/ml, and cotinine at 03 and 3 mu g/mL increased the number of viable cells (P<.05). Biofilm exposed to nicotine (03,3 and 30 mu g/mL) (P=.025, .030, .040, respectively) and cotinine (3 and 30 mu g/mL) (P=.027, .049, respectively) enhanced carbohydrate content. Biofilm biomass and protein content were similar among groups (P>.05). These findings suggest a greater biofilm accumulation in smokers, a risk factor that may lead to peri-implantitis. (C) 2015 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 11/20021-7 - The role of nicotine, cotinine and caffeine on the electrochemical behavior and bacterial colonization to cpTi. an in vitro study |
| Grantee: | Wirley Goncalves Assuncao |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 11/20017-0 - The Role of Nicotine, Cotinine and Caffeine on the Electrochemical Behavior and Bacterial Colonization to cpTi. An in vitro study. |
| Grantee: | Valentim Adelino Ricardo Barão |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |