Image
WTS Database
The subject of interest is:
waterpipe, water-pipe, nargile, narghile, arguileh, arguile, shisha, sheesha, chichi, hubble bubble, hubbly bubbly, goza, hookah, bong
| Title | Pub Year | Author Sort descending | SearchLink |
|---|---|---|---|
| Subterranean water pipes under busy roads and streets | 1984 | Azienda Communale Elettricita ed Acque (ACEA), Roma | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water Supply
Periodical, Abbrev.
Water Supply
Pub Date Free Form
1984/
Volume
2
Issue
1
Start Page
B81; B89
Other Pages
B81; B89
Notes
Place of Publication
ISSN/ISBN
0735-1917
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
drinking water, nonhuman, pipeline, theoretical study, therapy, water treatment
Links
Book Title
CONDUITES SOUTERRAINES PASSANT SOUS LES ROUTES OU LES CHAUSSEES A CIRCULATION DENSE
Database
Embase
Publisher
Data Source
Embase
Authors
De Caterini,G. P., Sensi,F.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
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| Prevalence and molecular characterization of CTX-M beta-lactamase-producing Escherichia coli isolated from healthy swine and cattle | 2013 | Bacterial Disease Division, Animal, Plant, and Fisheries Quarantine and Inspection Agency, Anyang, Gyeonggi-do, Korea. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Foodborne pathogens and disease
Periodical, Abbrev.
Foodborne Pathog.Dis.
Pub Date Free Form
Jan
Volume
10
Issue
1
Start Page
13
Other Pages
20
Notes
JID: 101120121; 0 (Bacterial Proteins); 0 (DNA, Bacterial); EC 3.5.2.6 (beta-Lactamases); 2012/12/04 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1556-7125; 1535-3141
Accession Number
PMID: 23210923
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1089/fpd.2012.1245 [doi]
Output Language
Unknown(0)
PMID
23210923
Abstract
The purpose of this study was to determine the prevalence and characteristics of CTX-M beta-lactamases in Escherichia coli among healthy swine and cattle in Korea. A total of 1212 fecal samples obtained from healthy pigs (n=558) and cattle (n=654) were screened for CTX-M-type extended spectrum beta-lactamase (ESBL)-producing E. coli isolates. One hundred and twenty-one E. coli that produced ESBL were subjected to phenotypic and genotypic characterization. A high number (120/558, 21.5%) of swine fecal samples showed the presence of CTX-M beta-lactamase-producing E. coli compared to cattle samples (1/654, 0.2%). The most predominant CTX-M-type identified was CTX-M-14 (n=82), followed by CTX-M-15 (n=16). Isolates producing CTX-M-3, CTX-M-27, CTX-M-55, and CTX-M-65 were also identified. Overall, the bla(TEM-1) gene was associated with CTX-M beta-lactamase in 55 E. coli isolates. Transfer of bla(CTX-M) gene was demonstrated from 76 out of 121 bla(CTX-M)-positive E. coli isolates to the recipient E. coli J53 by conjugation. Plasmid DNA isolation from the transconjugants revealed a large (90-120 Kb) conjugative plasmid. ISEcp1 and IS903 were detected upstream and downstream of bla(CTX-M) genes in 117 and 91 E. coli isolates, respectively. Our results demonstrated that a combination of clonal expansion and horizontal transmission is spreading bla(CTX-M) genes among swine E. coli. The horizontal dissemination of bla(CTX-M) genes among E. coli was mostly mediated by IncF or IncI1-Igamma plasmids. To the best of our knowledge, this study represents the first report of CTX-M-3, CTX-M-27, CTX-M-55, and CTX-M-65 beta-lactamases in bacterial isolates from food animals in Korea. This study revealed that the CTX-M beta-lactamase-producing E. coli are widely disseminated among healthy pigs but very rare in cattle in Korea. Increasing prevalence of bla(CTX-M) genes in intestinal E. coli of food animals is a matter of concern and should be carefully monitored.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Tamang,M.D., Nam,H.M., Kim,S.R., Chae,M.H., Jang,G.C., Jung,S.C., Lim,S.K.
Original/Translated Title
URL
Date of Electronic
20121204
PMCID
Editors
|
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| Molecular characterization of extended-spectrum-beta-lactamase-producing and plasmid-mediated AmpC beta-lactamase-producing Escherichia coli isolated from stray dogs in South Korea | 2012 | Bacterial Disease Division, Animal, Plant, and Fisheries Quarantine and Inspection Agency, Anyang, Gyeonggi-do, Republic of Korea. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Antimicrobial Agents and Chemotherapy
Periodical, Abbrev.
Antimicrob.Agents Chemother.
Pub Date Free Form
May
Volume
56
Issue
5
Start Page
2705
Other Pages
2712
Notes
LR: 20150225; JID: 0315061; 0 (Anti-Bacterial Agents); 0 (Cephalosporins); EC 3.5.2.6 (beta-Lactamases); OID: NLM: PMC3346616; 2012/02/21 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1098-6596; 0066-4804
Accession Number
PMID: 22354297
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1128/AAC.05598-11 [doi]
Output Language
Unknown(0)
PMID
22354297
Abstract
A total of 47 extended-spectrum-cephalosporin-resistant Escherichia coli strains isolated from stray dogs in 2006 and 2007 in the Republic of Korea were investigated using molecular methods. Extended-spectrum beta-lactamase (ESBL) and AmpC beta-lactamase phenotypes were identified in 12 and 23 E. coli isolates, respectively. All 12 ESBL-producing isolates carried bla(CTX-M) genes. The most common CTX-M types were CTX-M-14 (n = 5) and CTX-M-24 (n = 3). Isolates producing CTX-M-3, CTX-M-55, CTX-M-27, and CTX-M-65 were also identified. Twenty-one of 23 AmpC beta-lactamase-producing isolates were found to carry bla(CMY-2) genes. TEM-1 was associated with CTX-M and CMY-2 beta-lactamases in 4 and 15 isolates, respectively. In addition to bla(TEM-1), two isolates carried bla(DHA-1), and one of them cocarried bla(CMY-2). Both CTX-M and CMY-2 genes were located on large (40 to 170 kb) conjugative plasmids that contained the insertion sequence ISEcp1 upstream of the bla genes. Only in the case of CTX-M genes was there an IS903 sequence downstream of the gene. The spread of ESBLs and AmpC beta-lactamases occurred via both horizontal gene transfer, accounting for much of the CTX-M gene dissemination, and clonal spread, accounting for CMY-2 gene dissemination. The horizontal dissemination of bla(CTX-M) and bla(CMY-2) genes was mediated by IncF and IncI1-Igamma plasmids, respectively. The clonal spread of bla(CMY-2) was driven mainly by E. coli strains of virulent phylogroup D lineage ST648. To our knowledge, this is the first report of bla(DHA-1) in E. coli strains isolated from companion animals. This study also represents the first report of CMY-2 beta-lactamase-producing E. coli isolates from dogs in the Republic of Korea.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Tamang,M.D., Nam,H.M., Jang,G.C., Kim,S.R., Chae,M.H., Jung,S.C., Byun,J.W., Park,Y.H., Lim,S.K.
Original/Translated Title
URL
Date of Electronic
20120221
PMCID
PMC3346616
Editors
|
|||
| Maternal waterpipe smoke exposure and the risk of asthma and allergic diseases in childhood: A post hoc analysis | 2015 | Balamand University, Beirut, Lebanon (Pulmonology Department).; Lebanese University, Hadath, Lebanon (Faculty of Pharmacy). pascalesalameh1@hotmail.com. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of occupational medicine and environmental health
Periodical, Abbrev.
Int.J.Occup.Med.Environ.Health
Pub Date Free Form
Volume
28
Issue
1
Start Page
147
Other Pages
156
Notes
CI: This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.; JID: 9437093; OTO: NOTNLM; ppublish
Place of Publication
Poland
ISSN/ISBN
1896-494X; 1232-1087
Accession Number
PMID: 26159955
Language
eng
SubFile
Journal Article; IM
DOI
10.13075/ijomeh.1896.00316 [doi]
Output Language
Unknown(0)
PMID
26159955
Abstract
INTRODUCTION: This analysis was conducted with the objective of evaluating association between waterpipe passive smoking exposure and asthma, and allergies among Lebanese children. MATERIAL AND METHODS: Data were taken from a crosssectional study on children from public and private schools. A sample of 22 schools participated in the study, where standardized written core questionnaires were distributed. From 5 to 12-year-old students filled in the questionnaires at home, while 13-14-year-old students filled it in in the class. In total, 5522 children were evaluated for the prevalence of asthma, allergic rhinitis and atopic eczema, and their associated factors, including waterpipe exposure due to parents' smoking. RESULTS: The descriptive results of parental smoking were, as follows: among mothers: 1609 (29%) mothers smoked cigarettes, 385 (7%) smoked waterpipe and 98 (1.8%) smoked both; among fathers: 2449 (44.2%) smoked cigarettes, 573 (10.3%) smoked waterpipe and 197 (3.5%) smoked both. Maternal waterpipe smoking was significantly and moderately associated with allergic diseases (p
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Waked,M., Salameh,P.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
|||
| Risk factors for asthma and allergic diseases in school children across Lebanon | 2008 | Balamand University, Beirut, Lebanon; | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of asthma and allergy
Periodical, Abbrev.
J.Asthma Allergy
Pub Date Free Form
11-Nov
Volume
2
Issue
Start Page
1
Other Pages
7
Notes
LR: 20130529; JID: 101543450; OID: NLM: PMC3048605; OTO: NOTNLM; 2008/11/11 [epublish]; epublish
Place of Publication
New Zealand
ISSN/ISBN
1178-6965; 1178-6965
Accession Number
PMID: 21437138
Language
eng
SubFile
Journal Article
DOI
Output Language
Unknown(0)
PMID
21437138
Abstract
INTRODUCTION: Childhood asthma is one of important diseases of childhood. There is no known prevalence of asthma and allergic diseases in Lebanon. This study was conducted with a secondary objective of finding the odds of exposure to asthma, allergic rhinitis and eczema potential risk factors in Lebanese children. MATERIAL AND METHODS: It is a cross-sectional study on children in public and private schools. A sample of 22 schools participated, where standardized written core questionnaires were distributed. 5-12 year old students completed the questionnaires at home, while 13-14 year old students filled it in class. RESULTS: 5522 children were evaluated for asthma, allergic rhinitis and atopic eczema prevalence and their associated factors. These diseases seem to be similarly affected by parental respiratory problems, parental smoking, infancy gastroesophageal reflux, recurrent otitis, and previous pertussis. Humidity on the bedroom walls is associated with both asthma and allergic rhinitis, a spongy pillow with both allergic rhinitis and eczema, animal possession with asthma, and noncotton mattress with atopic eczema. The adjusted odds ratios for significant associations varied between 1.25 and 3 (0.0001 < p-value < 0.01). CONCLUSION: These factors are preventable, thus permitting a possible reduction of the prevalence of these diseases.
Descriptors
allergic disease, asthma, eczema, rhinitis, risk factors
Links
Book Title
Database
Publisher
Data Source
Authors
Waked,M., Salameh,P.
Original/Translated Title
URL
Date of Electronic
20081111
PMCID
PMC3048605
Editors
|
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| Root and shoot growth, assimilate partitioning and cell proliferation in roots of sitka spruce (Picea sitchensis) grown in filtered and unfiltered chambers | 1996 | Bambridge, L., Biochemistry Physiology Department, Rothamsted Experimental Station, Harpenden, Herts. AL5 2JQ, United Kingdom | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Environmental Pollution
Periodical, Abbrev.
Environ.Pollut.
Pub Date Free Form
1996/
Volume
92
Issue
3
Start Page
343
Other Pages
347
Notes
Place of Publication
ISSN/ISBN
0269-7491
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Rooted cuttings of clonal Sitka spruce (Picea sitchensis (Bong.) Carr.) were grown from April to October in 1 m long tubes sunk into the ground inside open top chambers. The same experiment was repeated in each of two consecutive years using a different clone of Sitka spruce each year. Air was either passed directly into the chambers (ambient ail) or passed over charcoal filters which removed the majority of gaseous pollutants before entering the chambers (filtered air). Ambient pollution did not appear to influence the growth of Sitka spruce at least over the experimental period used. No significant differences were found between plants exposed to ambient or filtered air in terms of shoot and root dry mass, needle dry mass, root length, carbohydrate content of roots and needles, and in the percentage of meristematic cells close to the apex in each phase or interphase or undergoing mitosis.
Descriptors
carbohydrate, charcoal, air pollutant, article, carbohydrate analysis, cell count, cell proliferation, clone, experiment, forestry, mass, mitosis, plant growth, plant root, pollution control, tree
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Bambridge,L., Harmer,R., Macleod,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
|
|||
| A web-based program to increase knowledge and reduce cigarette and nargila smoking among Arab university students in Israel: mixed-methods study to test acceptability | 2015 | Bar Ilan University, Faculty of Medicine in the Galilee, Safed, Israel. jamanh.essa-hadad@mail.biu.ac.il. | Read more... |
|
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of medical Internet research
Periodical, Abbrev.
J.Med.Internet Res.
Pub Date Free Form
20-Feb
Volume
17
Issue
2
Start Page
e39
Other Pages
Notes
LR: 20151119; ISRCTN/ISRCTN59207794; JID: 100959882; OID: NLM: PMC4376148; OTO: NOTNLM; 2013/09/29 [received]; 2014/12/06 [accepted]; 2014/01/13 [revised]; epublish
Place of Publication
Canada
ISSN/ISBN
1438-8871; 1438-8871
Accession Number
PMID: 25707034
Language
eng
SubFile
Clinical Trial; Journal Article; IM
DOI
10.2196/jmir.2988 [doi]
Output Language
Unknown(0)
PMID
25707034
Abstract
BACKGROUND: Among Arab citizens in Israel, cigarette and nargila (hookah, waterpipe) smoking is a serious public health problem, particularly among the young adult population. With the dramatic increase of Internet and computer use among Arab college and university students, a Web-based program may provide an easy, accessible tool to reduce smoking rates without heavy resource demands required by traditional methods. OBJECTIVE: The purpose of this research was to examine the acceptability and feasibility of a pilot Web-based program that provides tailored feedback to increase smoking knowledge and reduce cigarette and nargila smoking behaviors among Arab college/university students in Israel. METHODS: A pilot Web-based program was developed, consisting of a self-administered questionnaire and feedback system on cigarette and nargila smoking. Arab university students were recruited to participate in a mixed-methods study, using both quantitative (pre-/posttest study design) and qualitative tools. A posttest was implemented at 1 month following participation in the intervention to assess any changes in smoking knowledge and behaviors. Focus group sessions were implemented to assess acceptability and preferences related to the Web-based program. RESULTS: A total of 225 participants-response rate of 63.2% (225/356)-completed the intervention at baseline and at 1-month poststudy, and were used for the comparative analysis. Statistically significant reductions in nargila smoking among participants (P=.001) were found. The intervention did not result in reductions in cigarette smoking. However, the tailored Web intervention resulted in statistically significant increases in the intention to quit smoking (P=.021). No statistically significant increases in knowledge were seen at 1-month poststudy. Participants expressed high satisfaction with the intervention and 93.8% (211/225) of those who completed the intervention at both time intervals reported that they would recommend the program to their friends, indicating excellent acceptability and feasibility of the intervention. This was further emphasized in the focus group sessions. CONCLUSIONS: A tailored Web-based program may be a promising tool to reduce nargila smoking among Arab university students in Israel. The tailored Web intervention was not successful at significantly reducing cigarette smoking or increasing knowledge. However, the intervention did increase participants' intention to quit smoking. Participants considered the Web-based tool to be an interesting, feasible, and highly acceptable strategy. TRIAL REGISTRATION: TRIAL REGISTRATION: ISRCTN registry ISRCTN59207794; http://www.isrctn.com/ISRCTN59207794 (Archived by WebCite at http://www.webcitation.org/6VkYOBNOJ).
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Essa-Hadad,J., Linn,S., Rafaeli,S.
Original/Translated Title
URL
Date of Electronic
20150220
PMCID
PMC4376148
Editors
|
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| The Epidemiology of Tobacco Use among Khat Users: A Systematic Review | 2015 | Barts and The London School of Medicine and Dentistry and Institute of Dentistry, Queen Mary University of London, London E1 2AT, UK.; Department of Primary Care and Public Health, Imperial College London, London W6 8RP, UK ; Academic Unit of Primary Care | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
BioMed research international
Periodical, Abbrev.
Biomed.Res.Int.
Pub Date Free Form
Volume
2015
Issue
Start Page
313692
Other Pages
Notes
LR: 20150816; JID: 101600173; OID: NLM: PMC4529904; 2015/01/19 [received]; 2015/04/30 [accepted]; 2015/07/26 [epublish]; ppublish
Place of Publication
United States
ISSN/ISBN
2314-6141
Accession Number
PMID: 26273606
Language
eng
SubFile
Journal Article; Review; IM
DOI
10.1155/2015/313692 [doi]
Output Language
Unknown(0)
PMID
26273606
Abstract
Khat, an "amphetamine-like green leaf," may influence the consumption of tobacco. This study reviews the epidemiology of tobacco use among khat users. Electronic database searches using appropriate keywords/terms were conducted to identify observational studies of khat use. Assessment of quality and risk of bias of all included studies was conducted, and the results were synthesised descriptively. Nine eligible cross-sectional studies were identified. All assessed self-reported tobacco among khat users and were carried out in Africa and the Middle East. Eight reported cigarettes and one reported waterpipes as the mode of use. Methods of tobacco use prevalence assessment varied. Prevalence of "current" tobacco use among students and university teachers ranged from 29 to 37%; "lifetime" tobacco use in university teachers was 58% and "undefined" tobacco use in nonspecific adults and students ranged from 17 to 78%. Daily tobacco use among adults was reported as 17% whilst simultaneous tobacco and khat use was reported as between 14 and 30% in students. In conclusion, tobacco prevalence among khat users appears significant. Findings should be interpreted cautiously due to self-reported tobacco use, diversity in questions assessing tobacco use, and type of tobacco consumption. Future research should address the methodological shortcomings identified in this review before appropriate policy interventions can be developed.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Kassim,S., Jawad,M., Croucher,R., Akl,E.A.
Original/Translated Title
URL
Date of Electronic
20150726
PMCID
PMC4529904
Editors
|
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| Smoke-free air laws and quit attempts: Evidence for a moderating role of spontaneous self-affirmation | 2015 | Basic Biobehavioral and Psychological Sciences Branch, Behavioral Research Program, National Cancer Institute, USA. Electronic address: persoskie@gmail.com.; Basic Biobehavioral and Psychological Sciences Branch, Behavioral Research Program, National Canc | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Social science & medicine (1982)
Periodical, Abbrev.
Soc.Sci.Med.
Pub Date Free Form
Sep
Volume
141
Issue
Start Page
46
Other Pages
55
Notes
CI: Published by Elsevier Ltd.; JID: 8303205; 0 (Tobacco Smoke Pollution); OTO: NOTNLM; 2014/10/27 [received]; 2015/07/15 [revised]; 2015/07/17 [accepted]; 2015/07/20 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1873-5347; 0277-9536
Accession Number
PMID: 26246033
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.socscimed.2015.07.015 [doi]
Output Language
Unknown(0)
PMID
26246033
Abstract
BACKGROUND: In addition to their primary goal of protecting nonsmokers from secondhand smoke, smoke-free air laws may also encourage intentions to quit smoking, quit attempts, and cessation among smokers. However, laws may not encourage quitting if smokers feel threatened by them and react defensively. OBJECTIVE: This study examined whether spontaneous self-affirmation - the extent to which people think about their values or strengths when they feel threatened - may reduce smokers' reactance to smoke-free laws, enhancing the ability of the laws to encourage quitting. METHOD: We linked state-level information on the comprehensiveness of U.S. smoke-free laws (compiled in January, 2013 by the American Lung Association) with data from a U.S. health survey (Health Information National Trends Survey) collected from September-December, 2013 (N = 345 current smokers; 587 former smokers). RESULTS: Smoke-free laws interacted with self-affirmation to predict quit attempts in the past year and intentions to quit in the next six months: Smokers higher in self-affirmation reported more quit attempts and quit intentions if they lived in states with more comprehensive smoke-free laws. There was some evidence of a "boomerang" effect (i.e., less likelihood of making a quit attempt) among smokers low in self-affirmation if living in states with more comprehensive smoke-free laws, but this effect was significant only among smokers extremely low in self-affirmation. For quit intentions, there was no evidence for a boomerang effect of smoke-free laws even among smokers extremely low in self-affirmation. More comprehensive smoke-free laws were not associated with smoking status (former vs. current smoker) or average amount smoked per day, nor did they interact with self-affirmation to predict these outcomes. CONCLUSIONS: The impact of smoke-free policies on quit attempts and quit intentions may be moderated by psychological characteristics such as the tendency to spontaneously self-affirm. Follow-ups should experimentally manipulate self-affirmation and examine effects of smoke-free laws in controlled contexts.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Persoskie,A., Ferrer,R.A., Taber,J.M., Klein,W.M., Parascandola,M., Harris,P.R.
Original/Translated Title
URL
Date of Electronic
20150720
PMCID
Editors
|
|||
| Effect of bleaching on staining susceptibility of resin composite restorative materials | 2009 | Baskent University, School of Dentistry, Department of Conservative Dentistry, 06490, Bahcelievler, Ankara, Turkey. ccivelek@hotmail.com | Read more... |
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Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ...[et al.]
Periodical, Abbrev.
J.Esthet.Restor.Dent.
Pub Date Free Form
Volume
21
Issue
6
Start Page
407
Other Pages
414
Notes
LR: 20131121; JID: 101096515; 0 (Aelite LS); 0 (CeramX); 0 (Coffee); 0 (Composite Resins); 0 (Dental Materials); 0 (Drug Combinations); 0 (Filtek Supreme); 0 (Oxidants); 0 (Peroxides); 0 (Tea); 059QF0KO0R (Water); 31PZ2VAU81 (carbamide peroxide); 8W8T1784
Place of Publication
England
ISSN/ISBN
1708-8240; 1496-4155
Accession Number
PMID: 20002929
Language
eng
SubFile
Comparative Study; Journal Article; Randomized Controlled Trial; D
DOI
10.1111/j.1708-8240.2009.00299.x [doi]
Output Language
Unknown(0)
PMID
20002929
Abstract
STATEMENT OF THE PROBLEM: Effect of bleaching procedures on staining susceptibility of resin restorative materials is still questionable. PURPOSE: The aim of this study was to evaluate the staining susceptibility of restorative materials bleached with 20% carbamide peroxide home bleaching agent and subsequently immersed in coffee and tea. MATERIALS AND METHODS: Forty-two disk-shaped specimens were fabricated for each of the resin composites (Filtek Supreme XT [3M ESPE, St. Paul, MN, USA], Ceram-X Mono [Dentsply, Konstanz, Germany], and Aelite All Purpose Body [BISCO, Inc., Shaumburg, IL, USA]). The baseline color values were measured with a spectrophotometer. The specimens of each restorative material were randomly divided into two groups (N = 21). While the first group specimens were stored in distilled water (nonbleaching group-control), bleaching agent (Opalescence PF 20% [Ultradent Poducts, South Jordan, UT, USA]) was applied on the top surface of each specimen of the second group (bleaching group). After color change values were measured, the specimens were randomly divided into three subgroups (N = 7) according to the staining solutions. The color change values (DeltaE*ab) were calculated and the data were subjected to analysis of variance. Statistical significance was declared if the p value was 0.05 or less. RESULTS: There was no statistically significant difference within each restorative material's DeltaE*ab values after bleaching (p = 0.714). Also, the staining solutions did not cause a statistically significant difference between DeltaE*ab values of bleaching compared with nonbleaching groups (p = 0.146). Significant interaction was found only between restorative materials and staining solutions (p = 0.000). CONCLUSION: Bleaching of the tested resin composites did not increase their susceptibility to extrinsic staining in vitro. CLINICAL SIGNIFICANCE Bleaching did not affect staining susceptibility of the tested resin composite restorative materials. (J Esthet Restor Dent 21:407-415, 2009).
Descriptors
Coffee, Color, Composite Resins/chemistry, Dental Materials/chemistry, Dental Restoration, Permanent, Drug Combinations, Humans, Materials Testing, Oxidants/chemistry, Peroxides/chemistry, Spectrophotometry, Surface Properties, Tea, Temperature, Time Factors, Tooth Bleaching/methods, Urea/analogs & derivatives/chemistry, Water/chemistry
Links
Book Title
Database
Publisher
Data Source
Authors
Celik,C., Yuzugullu,B., Erkut,S., Yazici,A. R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
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