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https://www.readbyqxmd.com/read/29332815/single-particle-analysis-of-tio2-in-candy-products-using-triple-quadrupole-icp-ms
#1
S Candás-Zapico, D J Kutscher, M Montes-Bayón, J Bettmer
Titanium dioxide (TiO2) belongs to the materials that have gained great importance in many applications. In its particulate form (micro- or nanoparticles), it has entered a huge number of consumer products and food-grade TiO2, better known as E171 within the European Union, represents an important food additive. Thus, there is an increasing need for analytical methods able to detect and quantify such particles. In this regard, inductively coupled-mass spectrometry (ICP-MS), in particular single particle ICP-MS (spICP-MS), has gained importance due to its simplicity and ease of use...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29310881/comparison-between-masticatory-index-and-mixing-index-among-complete-denture-wearers-and-associated-factors-a-multivariate-analysis
#2
Hala A Elmoula, Nadia Khalifa, Mohammed Nasser Alhajj
STATEMENT OF PROBLEM: Masticatory performance is an important and complex multifactorial process in clinical practice. An exploration of the relationships and effects of the associated factors is lacking. PURPOSE: This clinical survey compared masticatory efficiency (mixing index) with perceived masticatory ability (masticatory index) among complete denture wearers and sought to clarify the relationship between these indices and other factors. MATERIALS AND METHODS: The study consisted of 58 complete denture wearers (37 men, 21 women) ranging between 37 and 80 years of age...
January 5, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29284954/effect-of-transcutaneous-electrical-nerve-stimulation-on-parotid-saliva-flow-in-patients-with-hyposalivation
#3
P Venkatalakshmi Aparna, S Leena Sankari, M Deivanayagi, A Priyadharshini, C K Vishnupriya, B Niveditha
Context: In recent days, we have come across an increase incidence of dry mouth as a side effects of drugs and in order to bring an awareness about a simple non- invasive method to increase the salivary flow, we have used TENS which in many way is beneficial to patients with metabolic disorders. Aims and Objectives: The aim is to assess the effectiveness of transcutaneous electrical nerve stimulation on salivary gland function in patients with hyposalivation. Subjects and Methods: The present study included total of 25 subjects with complaint of hyposalivation...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29251453/an-induced-extrinsic-tooth-stain-prevention-model-to-investigate-whitening-potential-of-sugar-free-chewing-gums
#4
Michael Wj Dodds, Minmin Tian, Lilian Ramirez, Jeffery L Milleman, Kimberly R Milleman, Howard M Proskin
PURPOSE: To establish an accelerated clinical test method to evaluate the effectiveness of sugar-free gums in prevention of the formation of extrinsic stains when chewed over a 2-week period in conjunction with daily tooth brushing. A secondary objective was to compare three methods for measuring extrinsic stain. METHODS: 25 healthy adult volunteers were enrolled in a single center, examiner blind, randomized 4-way crossover clinical study. Starting with a stain-free baseline, subjects rinsed five times daily with freshly brewed black tea, followed either by chewing one of three different gums for 12 minutes or not chewing (negative control)...
December 2017: American Journal of Dentistry
https://www.readbyqxmd.com/read/29230348/a-randomized-two-way-crossover-study-to-evaluate-the-pharmacokinetics-of-caffeine-delivered-using-caffeinated-chewing-gum-versus-a-marketed-caffeinated-beverage-in-healthy-adult-volunteers
#5
Paul Sadek, Xiao Pan, Phil Shepherd, Elise Malandain, John Carney, Hugh Coleman
Background: This study was conducted to compare the pharmacokinetics of caffeine delivered using caffeinated chewing gum to that delivered using a marketed caffeinated beverage (instant coffee) in 16 healthy adult volunteers. Materials and Methods: This was a controlled open-label, randomized, two-period crossover study. Caffeinated chewing gum and a serving of instant coffee, each containing ∼50 mg caffeine, were administered with blood samples collected before and up to 24 hours after administration starts...
December 1, 2017: Journal of Caffeine Research
https://www.readbyqxmd.com/read/29217358/lack-of-agreement-between-objective-and-subjective-measures-in-the-evaluation-of-masticatory-function-a-preliminary-study
#6
Aline Pedroni-Pereira, Maria Carolina Salomé Marquezin, Darlle Santos Araujo, Luciano José Pereira, Silvana Bommarito, Paula Midori Castelo
The evaluation of mastication is important to understand the masticatory behavior and diagnose feeding difficulties. The objective of this preliminary study was to verify if there is agreement between objective and subjective validated methods of chewing evaluation in a convenience sample which consisted of 32 adolescents (mean 15.5years), complete permanent dentition and free of tooth decay. The Quality of Masticatory Function Questionnaire with the Food-Mastication, Habits, Meat, Fruit and Vegetables domains was used in the subjective evaluation...
December 4, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29210957/the-physiological-and-performance-effects-of-caffeine-gum-consumed-during-a-simulated-half-time-by-professional-academy-rugby-union-players
#7
Russell M, Reynolds N A, Crewther B T, Cook C J, Kilduff L
Despite the prevalence of caffeine as an ergogenic aid, few studies have examined the use of caffeinated gums, especially during half-time in team sports. The physiological (blood lactate, salivary hormone concentrations) and performance (repeated sprints, cognitive function) effects of consuming caffeine gum during a simulated half-time were examined. Professional academy rugby union players (n=14) completed this double-blind, randomized, counterbalanced study. Following pre-exercise measurements , players chewed a placebo (PL) gum for five min before a standardized warm-up and completing repeated sprint testing (RSSA1)...
November 27, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29197439/halitosis-assessment-and-changes-in-volatile-sulfur-compounds-after-chewing-gum-a-study-performed-on-dentistry-students
#8
Mayra Schemel-Suárez, Eduardo Chimenos-Küstner, Albert Estrugo-Devesa, Enric Jané-Salas, José López-López
OBJECTIVE: The objective of this study is to estimate the prevalence of halitosis (with subjective and objective methods), evaluate the immediate effect of chewing gum on volatile sulfur compounds (VSCs), assess the perception of halitosis by dentistry students, and estimate the distribution of positive and negative frequencies, when comparing objective and subjective methods for the diagnosis of halitosis. METHODS: The study was performed on a sample of dentistry students attending the Faculty of Medicine and Health Sciences at the University of Barcelona...
December 2017: Journal of Evidence-based Dental Practice
https://www.readbyqxmd.com/read/29178768/a-global-approach-to-assess-the-economic-benefits-of-increased-consumption-of-sugar-free-chewing-gum
#9
Reinhard Rychlik, Fabian Kreimendahl, Cornelia Blaich, Hanny Calache, Franklin Garcia-Godoy, Elizabeth Kay, Yan Si, David Zilberman, Stefan Zimmer
PURPOSE: To analyze the influence of increasing the average consumption of sugar-free gum (SFG) in 25 industrialized countries on dental expenditures due to caries by the national health care systems. It was assumed that large cost savings were possible, because the regular consumption of SFG significantly reduces the relative risk of caries and therefore, improves dental health, which reduces expenditures on dental treatments. METHODS: A budget impact analysis (BIA) was performed to model the decrease in the relative risk of caries and the subsequent cost savings for dental care...
April 2017: American Journal of Dentistry
https://www.readbyqxmd.com/read/29173099/are-the-bite-force-and-electromyographic-activity-altered-in-muscle-tmd-patients-with-abfraction-lesions
#10
Ana Maria Bettoni Rodrigues da Silva, Laís Valencise Magri, Marco Antônio Moreira Rodrigues da Silva, Manoel Damião de Sousa Neto
OBJECTIVE: To verify if the maximal molar bite force (BF) and the electromyographic activity (EMG) are altered in TMD patients with abfraction lesions (AL) when compared to those without AL. METHODS: The sample was composed of 45 patients (18-60 years old), 30 diagnosed with TMD (RDC/TMD) (15 with AL and 15 without AL) and 15 controls. The BF and the EMG of the masticatory muscles (maximal voluntary contraction (MVC) and chewing gum) were measured. RESULTS: TMD patients showed decreased BF (p < 0...
November 24, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/29151456/characterization-of-specimens-obtained-by-different-sampling-methods-for-evaluation-of-periodontal-bacteria
#11
Ayako Okada, Kaoru Sogabe, Hiroaki Takeuchi, Masaaki Okamoto, Yoshiaki Nomura, Nobuhiro Hanada
Quantitative analysis of periodontal bacteria is considered useful for clinical diagnosis, evaluation and assessment of the risk of periodontal disease. The purpose of this study was to compare the effectiveness of sampling of saliva, supragingival and subgingival plaque for evaluation of periodontal bacteria. From each of 12 subjects, i) subgingival plaque was collected from the deepest pocket using a sterile paper point, ii) stimulated whole saliva was collected after chewing gum, and iii) supragingival plaque was collected using a tooth brush...
November 17, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29136816/simultaneous-determination-of-tert-butylhydroquinone-propyl-gallate-and-butylated-hydroxyanisole-by-flow-injection-analysis-with-multiple-pulse-amperometric-detection
#12
Dmytro Bavol, Anastasios Economou, Jiri Zima, Jiri Barek, Hana Dejmkova
We report the first amperometric method for the simultaneous determination of tert-butylhydroquinone (tBHQ), propyl gallate (PG), and butylated hydroxyanisole (BHA) using flow injection analysis coupled to multiple-pulse amperometry. A sequence of potential pulses was selected in order to detect tBHQ, PG, and BHA separately in a single injection step at a glassy carbon electrode without the need of a preliminary separation. A mixture of methanol and 0.040M Britton-Robinson buffer was used both as a carrier solution and for dilution of analyzed solutions before injection...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29126810/sensory-trick-splint-as-a-multimodal-therapy-for-oromandibular-dystonia
#13
Kazuya Yoshida
PURPOSE: Many patients with oromandibular dystonia, which is characterized by involuntary masticatory, lower facial, and/or tongue muscle contractions, experience relief of symptoms through sensory tricks such as eating chewing gum or candy. The aim of this study was to identify the factors influencing the effects of splints in patients with oromandibular dystonia. METHODS: Occlusal splints were inserted in 128 patients (89 women, 39 men) with oromandibular dystonia (102 with jaw closing dystonia, 20 with lingual dystonia, 5 with jaw deviation dystonia, 4 with jaw opening dystonia, 3 with lip dystonia, and 2 with jaw protrusion dystonia)...
November 7, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29112713/st-product-characteristics-and-relationships-with-perceptions-and-behaviors-among-rural-adolescent-males-a-qualitative-study
#14
Elizabeth T Couch, Ellen F Darius, Margaret M Walsh, Benjamin W Chaffee
Although smoking declines in the United States, the prevalence of male adolescent smokeless tobacco (ST; moist snuff and chewing tobacco) use remains unchanged. ST product characteristics, such as flavoring, packaging, and branding, could influence adolescents' ST initiation and continued use. This qualitative study examines the potential role of product characteristics in shaping ST-related perceptions and behaviors among rural adolescent males. Semi-structured individual interviews were conducted at three California rural high schools...
November 3, 2017: Health Education Research
https://www.readbyqxmd.com/read/29091470/acute-ingestion-of-caffeinated-chewing-gum-improves-repeated-sprint-performance-of-team-sports-athletes-with-low-habitual-caffeine-consumption
#15
Mark Evans, Peter Tierney, Nicola Gray, Greg Hawe, Maria Macken, Brendan Egan
The effects of acute ingestion of caffeine on short-duration high intensity performance are equivocal, while studies of novel modes of delivery and the efficacy of low doses of caffeine are warranted. The aims of the present study were to investigate the effect of acute ingestion of caffeinated chewing gum on repeated sprint performance (RSP) in team sport athletes, and whether habitual caffeine consumption alters the ergogenic effect, if any, on RSP. Eighteen male team sports athletes undertook four RSP trials using a 40 m maximum shuttle run test (MST), which incorporates 10x40 m sprints with 30 s between the start of each sprint...
November 1, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29091330/multicentre-observational-study-of-gastrointestinal-recovery-after-elective-colorectal-surgery
#16
(no author information available yet)
INTRODUCTION: Postoperative ileus (POI) is characterised by delayed gastrointestinal recovery and is common after colorectal surgery. Numerous strategies to optimise POI have been proposed but its management remains unclear. This study aimed to characterise the duration and management of gastrointestinal recovery in patients undergoing elective colorectal surgery. METHODS: A snapshot, prospective, observational study was undertaken between November 2016 and January 2017 at 10 regional hospitals in the United Kingdom...
November 1, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29081913/effect-of-maltitol-containing-chewing-gum-use-on-the-composition-of-dental-plaque-microbiota-in-subjects-with-active-dental-caries
#17
Erica M Prosdocimi, James O Kistler, Rebecca Moazzez, Clementine Thabuis, Caroline Perreau, William G Wade
Background: Sugar alcohols such as xylitol are incorporated in a number of oral hygiene products for their anti-cariogenic properties while chewing gum is known to be beneficial to oral hygiene. Objective: The aim of this study was to determine the composition of the dental plaque microbiota in patients with active caries before and after using a chewing gum supplemented with maltitol. Design : Forty subjects with active caries were randomly allocated to chew maltitol gum or gum base for two weeks. A healthy control group used gum base for two weeks...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/29081672/prevalence-and-factors-associated-with-dental-erosion-in-individuals-aged-12-30-years-in-a-northeastern-brazilian-city
#18
Luanda Cristina O Luciano, Meire Coelho Ferreira, Marco Aurelio Paschoal
BACKGROUND/PURPOSE: Dental erosion in young individuals has increased significantly in recent years, due to changes in lifestyle. Thus, the present study investigated the prevalence and factors associated with dental erosion in individuals aged 12-30 years in the city of Imperatriz of Maranhão, Brazil. MATERIALS AND METHODS: A cross-sectional study was conducted on 335 individuals who answered a questionnaire consisting of variables related to dental erosion. Afterwards, the individuals were subjected to clinical examinations and the basic erosive wear examination index was used to classify their teeth according to the presence and severity of dental erosion...
2017: Clinical, Cosmetic and Investigational Dentistry
https://www.readbyqxmd.com/read/29077816/effect-of-gum-chewing-on-gastric-volume-and-emptying-a-prospective-randomized-crossover-study
#19
L Bouvet, E Loubradou, F-P Desgranges, D Chassard
Background: Current fasting guidelines allow oral intake of water up to 2 h before induction of anaesthesia. We assessed whether gum chewing affects gastric emptying of 250 ml water and residual gastric fluid volume measured 2 h after ingestion of water. Methods: This prospective randomized observer-blind crossover trial was performed on 20 healthy volunteers who attended two separate study sessions: Control and Chewing gum (chlorophyll flavour, with 2.1 g carbohydrate)...
November 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29065366/social-capital-and-oral-health-the-association-of-social-capital-with-edentulism-and-chewing-ability-in-the-rural-elderly
#20
Eun-Kyong Kim, Yun-Sook Jung, Kyung-Hee Kim, Ki-Rim Kim, Gi-Hong Kwon, Youn-Hee Choi, Hee-Kyung Lee
OBJECTIVE: The association between social capital and oral health had been reported in various ways, but still remains unclear. We investigated the association between the social capital of the elderly living in a rural region and their edentulism and chewing ability. METHODS: A total of 241 elderly aged≥70years living in a rural city of Korea participated in this cross-sectional study. Their social capital was surveyed by questionnaire assessing its network and trust dimensions...
October 10, 2017: Archives of Gerontology and Geriatrics
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