Skip to main content
Title Sort ascending Pub Year Author SearchLink
Effect of enamel laser irradiation at different pulse settings on shear bond strength of orthodontic brackets 2013 a Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Angle Orthodontist
Periodical, Abbrev.
Angle Orthod.
Pub Date Free Form
Nov
Volume
83
Issue
6
Start Page
973
Other Pages
980
Notes
JID: 0370550; 0 (Resin Cements); 0 (Transbond XT); 2013/06/13 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1945-7103; 0003-3219
Accession Number
PMID: 23763542
Language
eng
SubFile
Comparative Study; Journal Article; D; IM
DOI
10.2319/111412-872.1 [doi]
Output Language
Unknown(0)
PMID
23763542
Abstract
OBJECTIVE: To compare the effect of laser irradiation at two different pulse settings and acid etching on the shear bond strength (SBS) of orthodontic brackets to enamel. MATERIALS AND METHODS: Thirty-six premolars were allocated to three groups (n = 12): (1) 37% phosphoric acid etching, (2) erbium-doped yttrium aluminum garnet (Er:YAG) laser etching with medium-short pulse mode (MSP; 100 micros, 120 mj, 10 Hz, 1.2 W), and (3) Er:YAG laser etching with quantum-square pulse mode (QSP; 120 mj, 10 Hz, 1.2 W). Metallic brackets were bonded with Transbond XT. After photopolymerization, the samples were subjected to 5000 thermal cycles and debonded with a universal testing machine, and the SBS values were recorded. Surface morphology was evaluated with profilometric examination, scanning electron microscopy, and atomic force microscopy. The adhesive remnant index (ARI) was evaluated to assess the remaining adhesive. RESULTS: The results of SBS testing were analyzed by one-way analysis of variance and Tukey honestly significant diffference tests. The mean SBS values of QSP and MSP laser groups were 11.80 +/- 2.7 MPa and 10.10 +/- 4.5 MPa, respectively, and the QSP group demonstrated significantly higher SBS (P
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Sagir,S., Usumez,A., Ademci,E., Usumez,S.
Original/Translated Title
URL
Date of Electronic
20130613
PMCID
Editors
Effect of Ebola progression on transmission and control in Liberia 2015
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Annals of Internal Medicine
Periodical, Abbrev.
Ann.Intern.Med.
Pub Date Free Form
6-Jan
Volume
162
Issue
1
Start Page
11
Other Pages
17
Notes
LR: 20160106; GR: K24 DA017072/DA/NIDA NIH HHS/United States; GR: U01 GM087719/GM/NIGMS NIH HHS/United States; GR: U01 GM087719/GM/NIGMS NIH HHS/United States; GR: U01 GM105627/GM/NIGMS NIH HHS/United States; JID: 0372351; CIN: Ann Intern Med. 2015 May 19
Place of Publication
United States
ISSN/ISBN
1539-3704; 0003-4819
Accession Number
PMID: 25347321
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; AIM; IM
DOI
10.7326/M14-2255 [doi]
Output Language
Unknown(0)
PMID
25347321
Abstract
BACKGROUND: The Ebola outbreak that is sweeping across West Africa is the largest, most volatile, and deadliest Ebola epidemic ever recorded. Liberia is the most profoundly affected country, with more than 3500 infections and 2000 deaths recorded in the past 3 months. OBJECTIVE: To evaluate the contribution of disease progression and case fatality on transmission and to examine the potential for targeted interventions to eliminate the disease. DESIGN: Stochastic transmission model that integrates epidemiologic and clinical data on incidence and case fatality, daily viral load among survivors and nonsurvivors evaluated on the basis of the 2000-2001 outbreak in Uganda, and primary data on contacts of patients with Ebola in Liberia. SETTING: Montserrado County, Liberia, July to September 2014. MEASUREMENTS: Ebola incidence and case-fatality records from 2014 Liberian Ministry of Health and Social Welfare. RESULTS: The average number of secondary infections generated throughout the entire infectious period of a single infected case, R, was estimated as 1.73 (95% CI, 1.66 to 1.83). There was substantial stratification between survivors (RSurvivors), for whom the estimate was 0.66 (CI, 0.10 to 1.69), and nonsurvivors (RNonsurvivors), for whom the estimate was 2.36 (CI, 1.72 to 2.80). The nonsurvivors had the highest risk for transmitting the virus later in the course of disease progression. Consequently, the isolation of 75% of infected individuals in critical condition within 4 days from symptom onset has a high chance of eliminating the disease. LIMITATION: Projections are based on the initial dynamics of the epidemic, which may change as the outbreak and interventions evolve. CONCLUSION: These results underscore the importance of isolating the most severely ill patients with Ebola within the first few days of their symptomatic phase. PRIMARY FUNDING SOURCE: National Institutes of Health.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Yamin,D., Gertler,S., Ndeffo-Mbah,M.L., Skrip,L.A., Fallah,M., Nyenswah,T.G., Altice,F.L., Galvani,A.P.
Original/Translated Title
URL
Date of Electronic
20141028
PMCID
PMC4402942
Editors
Effect of disinfectant, water age, and pipe material on occurrence and persistence of Legionella, mycobacteria, Pseudomonas aeruginosa, and two amoebas 2012 Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Environmental science & technology
Periodical, Abbrev.
Environ.Sci.Technol.
Pub Date Free Form
6-Nov
Volume
46
Issue
21
Start Page
11566
Other Pages
11574
Notes
LR: 20131121; JID: 0213155; 0 (Chloramines); 0 (Disinfectants); 0 (Drinking Water); 0 (RNA, Bacterial); 0 (RNA, Ribosomal, 16S); 0 (Water Pollutants); 10599-90-3 (chloramine); 4R7X1O2820 (Chlorine); 9002-86-2 (Polyvinyl Chloride); E1UOL152H7 (Iron); 2012/
Place of Publication
United States
ISSN/ISBN
1520-5851; 0013-936X
Accession Number
PMID: 23046164
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; IM
DOI
10.1021/es303212a [doi]
Output Language
Unknown(0)
PMID
23046164
Abstract
Opportunistic pathogens represent a unique challenge because they establish and grow within drinking water systems, yet the factors stimulating their proliferation are largely unknown. The purpose of this study was to examine the influence of pipe materials, disinfectant type, and water age on occurrence and persistence of three opportunistic pathogens (Legionella pneumophila, Mycobacterium avium, and Pseudomonas aeruginosa), broader genera (Legionella and mycobacteria), and two amoeba hosts (Acanthamoeba spp. and Hartmanella vermiformis). Triplicate simulated distribution systems (SDSs) compared iron, cement, and PVC pipe materials fed either chlorinated or chloraminated tap water and were sampled at water ages ranging from 1 day to 5.7 days. Quantitative polymerase chain reaction quantified gene copies of target microorganisms in both biofilm and bulk water. Legionella, mycobacteria, P. aeruginosa, and both amoebas naturally colonized the six SDSs, but L. pneumophila and M. avium were not detected. Disinfectant type and dose was observed to have the strongest influence on the microbiota. Disinfectant decay was noted with water age, particularly in chloraminated SDSs (due to nitrification), generally resulting in increased microbial detection frequencies and densities with water age. The influence of pipe material became apparent at water ages corresponding to low disinfectant residual. Each target microbe appeared to display a distinct response to disinfectant type, pipe materials, water age, and their interactions. Differences between the first and the second samplings (e.g., appearance of Legionella, reduction in P. aeruginosa and Acanthamoeba) suggest a temporally dynamic drinking water microbial community.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Wang,H., Masters,S., Hong,Y., Stallings,J., Falkinham,J.O.,3rd, Edwards,M.A., Pruden,A.
Original/Translated Title
URL
Date of Electronic
20121025
PMCID
Editors
Effect of different bonding agents on shear bond strengths of composite-bonded porcelain to enamel 2003 Department of Prosthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey. cenkcura@hotmail.com
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Journal of prosthetic dentistry
Periodical, Abbrev.
J.Prosthet.Dent.
Pub Date Free Form
Apr
Volume
89
Issue
4
Start Page
394
Other Pages
399
Notes
LR: 20131121; JID: 0376364; 0 (Acrylates); 0 (Aluminum Silicates); 0 (Clearfil SE Bond); 0 (Composite Resins); 0 (Dentin-Bonding Agents); 0 (IPS-Empress ceramic); 0 (PermaQuik); 0 (Polymethacrylic Acids); 0 (Prime and Bond NT); 0 (Prompt L-Pop); 0 (Resin
Place of Publication
United States
ISSN/ISBN
0022-3913; 0022-3913
Accession Number
PMID: 12690353
Language
eng
SubFile
Clinical Trial; Journal Article; D; IM
DOI
10.1067/mpr.2003.58 [doi]
Output Language
Unknown(0)
PMID
12690353
Abstract
STATEMENT OF PROBLEM: The use of bonding agents in the luting procedure for porcelain laminate restorations to enamel is not clear. PURPOSE: This study evaluated the shear bond strength differences between an enamel-luting composite and a heat-pressed ceramic with 6 different bonding systems. MATERIAL AND METHODS: Seventy standardized heat-pressed IPS Empress ceramic discs (4-mm diameter, 3-mm height) were prepared. A vertical planar enamel-bonding surface was prepared on the buccal or lingual enamel of 70 freshly extracted sound human molars and premolars. The teeth were oriented to maintain a parallel relationship between the bonding plane and the shear loading axis of a universal testing machine. Tooth specimens were divided into 7 groups (n=10) comprising equal numbers of molars and premolars. The enamel surfaces of specimens in groups 1 through 6 were prepared with 1 of 6 bonding agents (Scotchbond Multi Purpose Plus, Heliobond, PQ1, SE Bond, Prime&Bond NT, and Prompt L-Pop). Finally, the specimens were luted to the ceramic discs with the composite cement (Opal Luting Composite). Ceramic discs in the seventh group (Control) were luted to the etched enamel with the composite cement without using bonding material. Enamel-ceramic specimens were kept in distilled water at room temperature for 30 days after cementation. All specimens were shear loaded axially in a universal testing machine with a crosshead speed of 0.05 mm/min until fracture. Shear bond strength was measured and recorded for each group in MPa. To determine the statistical significance of the differences between the mean shear bond strength values, a 1-way analysis of variance was used (alpha=.05). Post-hoc multiple comparisons were made with Duncan's multiple range analysis. Fractured surfaces of each specimen were also inspected with a stereomicroscope to evaluate failure modes. RESULTS: A 1-way analysis of variance revealed significant differences between the test groups (P=.00). Bond strength values (MPa) from the highest to the lowest were as follows: Prompt L-Pop, 25.46 +/- 5.6; Prime&Bond NT, 18.99 +/- 4.93; Heliobond, 17.28 +/- 4.0; SE Bond, 16.21 +/- 2.6; PQ1, 15.60 +/- 2.8; Scotchbond MPP, 14.82 +/- 2.4; and Control, 10.55 +/- 1.6. Duncan's multiple range post hoc analysis exhibited significant differences between the control group and the adhesive bonding agent groups (P<.05). There were also significant differences between the bonding agent groups (P<.05). Prompt L-Pop showed the highest bond strength values. CONCLUSION: Within the limitations of this study, bonding agents appear to have a strengthening effect on the shear bond strengths of the enamel/composite/porcelain interface of the materials tested. Bonding agents used in this study showed similar bond strength values except for Prompt L-Pop, which demonstrated the highest bond strength values.
Descriptors
Acrylates/chemistry, Adhesiveness, Adult, Aluminum Silicates/chemistry, Analysis of Variance, Composite Resins/chemistry, Dental Bonding, Dental Enamel/ultrastructure, Dental Porcelain/chemistry, Dentin-Bonding Agents/chemistry, Humans, Materials Testing, Middle Aged, Polymethacrylic Acids/chemistry, Resin Cements/chemistry, Statistics as Topic, Stress, Mechanical, Temperature, Time Factors, Water/chemistry
Links
Book Title
Database
Publisher
Data Source
Authors
Cura,C., Saracoglu,A., Cotert,H. S.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of deposits in water pipes on the quality of water and its 1949 Sapozhnikov, M.M.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Higiene y salubridad
Periodical, Abbrev.
Hig Salubr
Pub Date Free Form
1949/
Volume
14
Issue
1
Start Page
19
Other Pages
22
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Descriptors
article, water management
Links
Book Title
Vliyanie otlozhenii vnutri vodoprovodnykh trub na kachestvo vody i
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Sapozhnikov,M. M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of dentin primer on shear bond strength of composite resin to moist and dry enamel 2000 Section of Operative Dentistry, Department of Restorative Dentistry, Southern Illinois University-School of Dental Medicine, Alton, IL 62002, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Operative dentistry
Periodical, Abbrev.
Oper.Dent.
Pub Date Free Form
Jan-Feb
Volume
25
Issue
1
Start Page
51
Other Pages
58
Notes
LR: 20131121; JID: 7605679; 0 (Composite Resins); 0 (Dentin-Bonding Agents); 0 (Optibond); 0 (Resin Cements); 0 (Scotchbond Multi-Purpose); 0 (Z100 composite resin); 0 (single bond); 059QF0KO0R (Water); 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate); 7631
Place of Publication
United States
ISSN/ISBN
0361-7734; 0361-7734
Accession Number
PMID: 11203791
Language
eng
SubFile
Comparative Study; Journal Article; D
DOI
Output Language
Unknown(0)
PMID
11203791
Abstract
The etched enamel-composite resin bond is the most reliable bond known to us. Moisture and dentin primers are the two most important variables that can interfere with this bond. This study investigated the effect of dentin primer on bond strengths of composite resin to moist and dry enamel. One hundred freshly extracted molar teeth were used for shear bond strength testing. The teeth were mounted in phenolic rings with an approximal enamel surface exposed. The exposed enamel surface on each tooth was flattened using 320- 400- and 600-grit silicon carbide papers and etched using 34-38% phosphoric acid gel. The teeth were then divided into 10 groups (n = 10). Four groups were assigned to each of the two dentin bonding systems, Scotchbond Multi-Purpose and OptiBond FL. Two groups were assigned to the single-bottle bonding agent (Single Bond). Each bonding system was tested on moist and dry enamel. OptiBond FL and Scotchbond MP were tested with and without the use of primer. All samples were thermocycled and tested in shear. Fracture analysis was performed using a binocular microscope. For scanning electron microscopy, approximal samples of enamel (1 mm thick) were flattened, etched, and bonded with and without primer on moist and dry enamel. A 1 mm-thick layer of Z100 was bonded to the specimens, which were then immersed in 10% HCl for 24 hours to dissolve the enamel. The specimens were viewed under a scanning electron microscope. Results indicated that the use of primer on dry enamel did not significantly affect (P > 0.05) shear bond strengths for the two bonding systems, Scotchbond MP (primed 24.10 +/- 4.83 MPa, unprimed 29.57 +/- 7.49 MPa) and OptiBond FL (primed 26.82 +/- 4.44, unprimed 25.66 +/- 2.95). However, the use of primer was found to be essential on moist enamel to obtain acceptable bond strengths with both Scotchbond MP (primed 25.61 +/- 10.29 MPa, unprimed 3.26 +/- 0.95 MPa) and OptiBond FL (primed 30.28 +/- 3.49 MPa, unprimed 8.37 +/- 3.31 MPa). Moisture on enamel did not significantly affect (P > 0.05) bond strengths for the single-bottle bonding agent, Single Bond (moist enamel 31.34 +/- 9.03 MPa, dry enamel 27.93 +/- 5.41 MPa). Fracture analysis revealed that most fractures were adhesive or mixed, with a greater percentage being cohesive for the groups with dry enamel or with primer on moist enamel. Scanning electron micrographs corroborated the shear bond strength data. The specimens without primer on moist enamel showed very poor penetration of adhesive and composite resin into the etched enamel microporosities.
Descriptors
Analysis of Variance, Bisphenol A-Glycidyl Methacrylate, Composite Resins, Dental Bonding, Dental Enamel/chemistry, Dental Enamel Permeability, Dental Stress Analysis, Dentin-Bonding Agents, Desiccation, Humans, Materials Testing, Microscopy, Electron, Scanning, Molar, Resin Cements, Silicon Dioxide, Statistics, Nonparametric, Tensile Strength, Water, Zirconium
Links
Book Title
Database
Publisher
Data Source
Authors
Jain,P., Stewart,G. P.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of cigarette smoking on periodontal status of healthy young adults 2000 Department of Oral Medicine and Periodontics, School of Dentistry, University of Seville, Spain.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of periodontology
Periodical, Abbrev.
J.Periodontol.
Pub Date Free Form
Jan
Volume
71
Issue
1
Start Page
73
Other Pages
78
Notes
LR: 20151119; JID: 8000345; ppublish
Place of Publication
UNITED STATES
ISSN/ISBN
0022-3492; 0022-3492
Accession Number
PMID: 10695941
Language
eng
SubFile
Comparative Study; Journal Article; D; IM
DOI
10.1902/jop.2000.71.1.73 [doi]
Output Language
Unknown(0)
PMID
10695941
Abstract
BACKGROUND: It has been shown that tobacco is a significant risk factor for periodontal disease; however, there have been few studies on young populations where problems of general health can be discounted. The purpose of this study was to examine the influence of tobacco consumption on the periodontal condition of a young, healthy population. METHODS: The study population consisted of 304 young Caucasian males (average age 19.38 +/- 0.72 years) entering the Armed Forces. All the subjects completed a self-administered questionnaire on age, oral hygiene habits, previous dental examinations, and quantity and length of tobacco use. The periodontal examination consisted of the plaque index (PI); periodontal bleeding index (PBI); probing depth (PD); and clinical attachment level (CAL). One- and 2-way ANOVA was used to compare data recorded between smokers and non-smokers. RESULTS: Forty-six percent of subjects reported that they brushed their teeth at least once a day, but only 13% visited a dentist at least once a year. Over half (53%) were habitual smokers, 43% smoking between 5 and 20 cigarettes per day; 39% of the smokers had been smoking for less than 5 years. Mean PI was 31.24 +/- 14.88 (27.19 +/- 15.93 for smokers and 35.78 +/- 12.17 for non-smokers), with significant differences between non-smokers and those who smoked 5 to 20 cigarettes per day (26.85 +/- 16.11, P<0.0001). Mean PBI was 42.29 +/- 8.43 (non-smokers 44.67 +/- 6.53 and smokers 40.17 +/- 9.46). Significant differences were found between the PBI of the non-smokers and of those who smoked 5 to 20 cigarettes per day (39.90 +/- 9.64, P <0.0001). There were also differences in the PBI between those who brushed their teeth once (40.53 +/- 9.61) and twice (44.86 +/- 5.9) a day (P<0.0001). Mean PD was 1.62 +/- 0.43 mm (non-smokers 1.56 +/- 0.36 and smokers 1.68 +/- 0.49). Deeper probing depths were recorded among smokers than among non-smokers, with statistically significant differences (P<0.049); statistically significant differences were also found between those who attended (1.49 +/- 0.50) and those who did not attend (1.65 +/- 0.42) regular dental check-ups (P<0.031). Mean CAL 1.75 +/- 0.41 (non-smokers 1.64 +/- 0.32 and smokers 1.82 +/- 0.44). CONCLUSIONS: It may be concluded that, even at such an early age, tobacco consumption affects the periodontal health. It is necessary to inform young smokers of the risk of tobacco use regarding periodontal health.
Descriptors
Adult, Age Factors, Analysis of Variance, Attitude to Health, Dental Care, Dental Plaque Index, Gingival Hemorrhage/classification, Health Behavior, Humans, Male, Military Personnel, Oral Hygiene, Periodontal Attachment Loss/classification, Periodontal Diseases/etiology, Periodontal Pocket/classification, Periodontium/physiopathology, Risk Factors, Smoking/adverse effects/physiopathology, Surveys and Questionnaires, Time Factors, Toothbrushing
Links
Book Title
Database
Publisher
Data Source
Authors
Machuca,G., Rosales,I., Lacalle,J. R., Machuca,C., Bullon,P.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of cigarette promotions on smoking uptake among adolescents 2000 Department of Pediatrics, Norris Cotton Cancer Center, Dartmouth Medical School, New Hampshire, USA. James.D.Sargent@Hitchcock.org
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Preventive medicine
Periodical, Abbrev.
Prev.Med.
Pub Date Free Form
Apr
Volume
30
Issue
4
Start Page
320
Other Pages
327
Notes
LR: 20130705; CI: Copyright 2000; GR: CA-23108/CA/NCI NIH HHS/United States; GR: CA-67538/CA/NCI NIH HHS/United States; GR: P30 CA023108/CA/NCI NIH HHS/United States; JID: 0322116; CIN: Prev Med. 2001 Nov;33(5):514-5. PMID: 11676594; ppublish
Place of Publication
UNITED STATES
ISSN/ISBN
0091-7435; 0091-7435
Accession Number
PMID: 10731461
Language
eng
SubFile
Journal Article; Research Support, U.S. Gov't, P.H.S.; IM
DOI
10.1006/pmed.1999.0629 [doi]
Output Language
Unknown(0)
PMID
10731461
Abstract
BACKGROUND: The purpose of this study was to evaluate the association between receptivity to cigarette promotions and smoking uptake in a cohort of adolescents. METHODS AND MEASURES: This was a prospective cohort study of 480 4th- to 11th-grade students conducted in three rural Vermont K-12 schools. Cigarette use was determined by self-report at baseline, 12 months (survey 2), and 21 months (survey 3). Proportional odds models were used to evaluate smoking uptake as a function of baseline measures of cigarette use, receptivity to cigarette promotions, and confounding factors, including grade, parental education, peer smoking, and family smoking. Adolescents were receptive to cigarette promotions if they owned or were willing to use a personal item bearing a cigarette brand logo [cigarette promotional item (CPI)]. Smoking status was measured using a 6-point ordinal index that combined experience and attitudes: 0 = never smoker/not susceptible to smoking, 1 = never smoker/susceptible to smoking, 2 = puffer (1 cigarette or less in lifetime), 3 = non-current experimenter (2-99 cigarettes in lifetime/none in past 30 days), 4 = current experimenter, and 5 = smoker (> or =100 cigarettes in lifetime). RESULTS: The 480 students were equally distributed across grade at baseline. Environmental exposure to smoking was high, and 30% were receptive to cigarette promotions at baseline. Higher levels on the smoking index at baseline were associated with higher grade in school, peer smoking, and receptivity to cigarette promotions. One hundred eighty-five students (38.5%) had moved to a higher category on the smoking index by survey 3, of whom 30 had become smokers. Receptivity to cigarette promotions at baseline was significantly associated with higher smoking uptake, with 48.7% of receptive students moving up one or more categories on the smoking index [adjusted proportional odds 1.9 (95% CI 1.3, 2.9)]. Acquisition of receptivity to cigarette promotions was also associated with increased smoking uptake, with those becoming receptive in surveys 2 or 3 having significantly higher odds of progression [3.6 (1.8, 7.0) and 2.9 (1.5, 5.5), respectively] compared with those who did not change. Conversely, those who were receptive at one point but became non-receptive in surveys 2 or 3 had lower odds of progression [0.4 (0.2, 0.9) and 0.5 (0.3, 1.1), respectively]. CONCLUSIONS: This study supports a close linkage between tobacco promotional activities and uptake of smoking among adolescents beyond baseline descriptions of receptivity to cigarette promotions. Over time, the likelihood of smoking uptake is increased when an adolescent acquires a CPI or becomes willing to use one and is decreased when an adolescent who owns a CPI loses it or becomes unwilling to use it. This provides strong evidence that elimination of cigarette promotional campaigns could reduce adolescent smoking.
Descriptors
Adolescent, Adolescent Behavior, Advertising as Topic, Cohort Studies, Data Collection, Female, Humans, Incidence, Male, New Hampshire/epidemiology, Odds Ratio, Plants, Toxic, Prospective Studies, Reproducibility of Results, Sex Distribution, Smoking/epidemiology, Tobacco
Links
Book Title
Database
Publisher
American Health Foundation and Academic Press
Data Source
Authors
Sargent,J. D., Dalton,M., Beach,M., Bernhardt,A., Heatherton,T., Stevens,M.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Effect of cigarette design on biomarkers of exposure, puffing topography and respiratory parameters 2015 Altria Client Services Inc. , Richmond, VA , USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Inhalation toxicology
Periodical, Abbrev.
Inhal.Toxicol.
Pub Date Free Form
Feb
Volume
27
Issue
3
Start Page
174
Other Pages
180
Notes
LR: 20150729; JID: 8910739; 0 (Biomarkers); 6M3C89ZY6R (Nicotine); 9061-29-4 (Carboxyhemoglobin); OID: NLM: PMC4496805; OTO: NOTNLM; 2015/04/01 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1091-7691; 0895-8378
Accession Number
PMID: 25830813
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; IM
DOI
10.3109/08958378.2015.1021980 [doi]
Output Language
Unknown(0)
PMID
25830813
Abstract
Despite the lack of evidence, many reports exist which have implied that smokers inhale low-yield cigarette smoke more deeply than that of high-yield cigarettes. The objective of this study was to investigate the effect of short-term switching between smoker's own brand and test cigarettes with different smoke yields on puffing topography, respiratory parameters and biomarkers of exposure. Participants were randomly assigned to smoke either a Test Cigarette-High Tar (TCH), for two days, and then switched to a Test Cigarette-Low Tar (TCL), for two days or the reverse order (n = 10 each sequence). Puffing topography (CReSS microdevice), respiratory parameters (inductive plethysmography) and biomarkers of exposure (BOE, urinary nicotine equivalents - NE and blood carboxyhemoglobin - COHb) were measured at baseline and on days 2 and 4. The average puffs per cigarette, puff volume and puff durations were statistically significantly lower, and inter-puff interval was significantly longer for the TCH compared to the TCL groups. Respiratory parameters were not statistically significantly different between the TCH and TCL groups. Post-baseline NE and COHb were statistically significantly lower in the TCL compared to the TCH groups. Under the conditions of this study, we found no indication of changes in respiratory parameters, particularly inhalation time and volume, between study participants smoking lower versus higher yield cigarettes. Likewise, the BOE provides no indication of deeper inhalation when smoking low- versus high-yield cigarettes. These findings are consistent with the published literature indicating smoking low-yield cigarettes does not increase the depth of inhalation.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Appleton,S., Liu,J., Lipowicz,P.J., Sarkar,M.
Original/Translated Title
URL
Date of Electronic
20150401
PMCID
PMC4496805
Editors
Effect of cessation interventions on hookah smoking: post-hoc analysis of a cluster-randomized controlled trial 2014
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Nicotine Tob Res
Periodical, Abbrev.
Nicotine Tob.Res.
Pub Date Free Form
Volume
16
Issue
6
Start Page
682
Other Pages
8
Notes
ID: 24376277
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
INTRODUCTION: We explored the differential effect of cessation interventions (behavioral support sessions with BSS+] and without BSS] bupropion) between hookah and cigarette smokers. METHODS: We reanalyzed the data from a major cluster-randomized controlled trial, ASSIST (Action to Stop Smoking In Suspected Tuberculosis), which consisted of 3 conditions: (a) behavioral support sessions (BSS), (b) behavioral support sessions plus 7 weeks of bupropion therapy (BSS+), and (c) controls receiving usual care. The trial originally recruited 1,955 adult smokers with suspected tuberculosis from 33 health centers in the Jhang and Sargodha districts of Pakistan between 2010 and 2011. The primary endpoint was continuous 6-month smoking abstinence, which was determined by carbon monoxide levels. Subgroup-specific relative risks (RRs) of smoking abstinence were computed and tested for differential intervention effect using log binomial regression (generalized linear model) between 3 subgroups (cigarette-only: 1,255; mixed: 485; and hookah-only: 215). RESULTS: The test result for homogeneity of intervention effects between the smoking forms was statistically significant (p-value for BSS+: .04 and for BSS: .02). Compared to the control, both interventions appeared to be effective among hookah smokers (RR = 2.5; 95% CI = 1.3-4.7 and RR = 2.2; 95% CI = 1.3-3.8, respectively) but less effective among cigarette smokers (RR = 6.6; 95% CI = 4.6-9.6 and RR = 5.8; 95% CI = 4.0-8.5), respectively. CONCLUSIONS: The differential intervention effects on hookah and cigarette smokers were seen (a) because the behavioral support intervention was designed primarily for cigarette smokers; (b) because of differences in demographic characteristics, behavioral, and sociocultural determinants; or (c) because of differences in nicotine dependency levels between the 2 groups.
Descriptors
Links
http://dx.doi.org/10.1093/ntr/ntt211
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Dogar,Omara, Jawad,Mohammed, Shah,Sarwat K., Newell,James N., Kanaan,Mona, Khan,Muhammad A., Siddiqi,Kamran
Original/Translated Title
URL
Date of Electronic
PMCID
Editors