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American Journal of Dentistry

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https://www.readbyqxmd.com/read/27505997/intratubular-penetration-in-post-cementing-a-comparative-study-between-a-total-etching-system-and-a-self-etching-cement
#1
COMPARATIVE STUDY
Maria García-Gallart, Carmen Llena, Leopoldo Forner, Marco Ferrari
PURPOSE: To analyze the penetration depth and percentage perimeter with penetration of two fiber post cementing systems using confocal laser scanning microscopy (CLSM). METHODS: 20 maxillary incisors were shaped with the Mtwo system and filled using lateral condensation and TopSeal mixed with fluorescein. Fiber posts were cemented. The samples were divided into two groups of 10 teeth each, according to the post cementing technique used: Prime&Bond NT combined with Rebilda DC using a total dentin etching technique (Group 1); or BisCem a self-adhesive cement (Group 2)...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505996/bond-strength-of-resin-cements-to-dentin-using-universal-bonding-agents
#2
Christopher J Raimondi, Jeffrey P Jessup, Deborah Ashcraft-Olmscheid, Kraig S Vandewalle
PURPOSE: To determine the effect of new universal bonding agents on the bond strength of dual-cure resin cements to dentin. METHODS: 140 extracted human third molars were mounted in dental stone and sectioned with a saw to remove coronal tooth structure. The teeth were randomly divided into seven groups of 20, based on the use of five universal bonding agents (All-Bond Universal; FuturaBond U; Prime&Bond Elect; Scotchbond Universal; Clearfil Universal) compared to two self-etch bonding agents (Clearfil SE Bond and Clearfil SE Bond 2)...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505995/wear-of-an-enhanced-resin-modified-glass-ionomer-restorative-material
#3
Ritika Bansal, John Burgess, Nathaniel C Lawson
PURPOSE: To compare the wear of an enhanced resin-modified glass-ionomer (RMGI) restorative material (ACTIVA BioACTIVE Restorative) to a resin composite (Filtek Supreme Ultra), RMGI (Fuji II LC), and glass-ionomer (GI) (Fuji IX) material. METHODS: Specimens of each material (n = 8) were prepared in a silicone mold. All specimens other than the GI material were light polymerized for 40 seconds. After 24-hour storage (H2O, 37 degrees C), the specimens were loaded into the modified Alabama wear testing device...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505994/an-ion-extract-obtained-from-mineral-trioxide-aggregate-induced-dentin-remineralization-and-dentin-tubule-occlusion-in-artificially-demineralized-bovine-dentin
#4
Linlin Han, Takashi Okiji
PURPOSE: To investigate the ability of a mineral trioxide aggregate (MTA) extract mixed with a phosphate buffered saline (PBS) system to induce remineralization and dentin tubule occlusion in artificially demineralized bovine dentin. METHODS: The MTA extract solution was prepared by mixing white ProRoot MTA with distilled water (1:2) for 48 hours, before subjecting it to centrifugation. The elemental composition of the MTA extract solution was analyzed with inductively coupled plasma atomic emission spectrometry...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505993/headache-and-jaw-locking-comorbidity-with-daytime-sleepiness
#5
Steven R Olmos, Franklin Garcia-Godoy, Timothy L Hottel, Nhu Quynh T Tran
PURPOSE: To investigate the relationship between craniofacial pain symptoms (painful conditions present in the cranium and face, including jaw joint-related pathology and primary headache conditions) and daytime sleepiness, determined by the Epworth sleepiness scale (ESS), to correlate comorbidity as well as potential predictive factors. METHODS: 1,171 patients seeking care for chronic pain and/or sleep-related breathing disorders (SRBDs) at 11 international treatment centers were included in the study...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505992/effect-of-mechanical-toothbrushing-combined-with-different-denture-cleansers-in-reducing-the-viability-of-a-multispecies-biofilm-on-acrylic-resins
#6
Beatriz Helena Dias Panariello, Fernanda Emiko Izumida, Eduardo Buozi Moffa, Ana Claudia Pavarina, Janaina Habib Jorge, Eunive Teresinha Giampaolo
PURPOSE: To investigate the efficacy of immersion and brushing with different cleansing agents in reducing the viability of multispecies biofilm on acrylic resins. METHODS: Lucitone 550 (L) and Tokuyama Rebase Fast II (T) specimens (10 x 2 mm) were prepared, sterilized, and inoculated with a suspension of Candida albicans, Candida glabrata, and Streptococcus mutans. Specimens were incubated for 48 hours at 37 degrees C for biofilm formation. Then, they were divided into groups (n = 12) and subjected to brushing or immersion for 10 seconds in distilled water (W), 0...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505991/antimicrobial-efficacy-of-complete-denture-cleansers
#7
Flávia Cristina Targa Coimbra, Marcela Moreira Salles, Viviane Cássia De Oliveira, Ana Paula Macedo, Cláudia Helena Lovato Da Silva, Valéria Oliveira Pagnano, Helena de Freitas Oliveira Paranhos
PURPOSE: To evaluate the in vitro antimicrobial efficacy of alkaline peroxides against microbial biofilms on acrylic resin surfaces. METHODS: Denture base acrylic resin (Lucitone 550; n= 360) circular specimens (15 x 3 mm) were obtained from a circular metal matrix and sterilized with microwave irradiation (650 W, 6 minutes). The specimens were then contaminated with suspensions [106 colony-forming units (CFU)/mL] of Candida albicans (Ca), Candida glabrata (Cg), Staphylococcus aureus (Sa), Streptococcus mutans (Sm), Bacillus subtilis (Bs), Enterococcus faecalis (Ef), Escherichia coli (Ec), and Pseudomonas aeruginosa (Pa)...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505990/consumption-of-baked-nuts-or-seeds-reduces-dental-plaque-acidogenicity-after-sucrose-challenge
#8
Xiaoling Wang, Chuoyue Cheng, Chunling Ge, Bing Wang, Ye-Hua Gan
PURPOSE: To assess the acidogenic potential of eight different types of baked nuts or seeds eaten alone and after a sucrose challenge using in-dwelling electrode telemetry. METHODS: Six participants wearing a mandibular partial prosthesis incorporated with a miniature glass pH electrode were enrolled. The plaque pH was measured after 5 or 6 days of plaque accumulation. To establish a control, the subjects were instructed to rinse with sucrose, without any subsequent treatment, at the first visit...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505989/potential-of-desensitizing-toothpastes-to-reduce-the-hydrogen-peroxide-diffusion-in-teeth-with-cervical-lesions
#9
Andrés Dávila-Sánchez, Andrés Fernando Montenegro, Arana-Gordillo Alfonso, Paulo Vitor Farago, Alessandro D Loguercio, Alessandra Reis
PURPOSE: To evaluate the occlusive potential of four toothpastes by atomic force microscopy (AFM) before and after bleaching and quantify the hydrogen peroxide (HP) diffusion into the pulp chamber after application of desensitizing toothpastes in teeth with cervical lesions. METHODS: In 52 human extracted premolars, 2-mm deep artificial cervical lesions (ACL) were prepared and rinsed with EDTA for 10 seconds. Then teeth were adapted in a brushing machine and brushed with one of the following toothpastes [Regular toothpaste with no occlusive compounds Colgate Cavity Protection (CP), Oral-B Pro Health (OB), Colgate ProRelief (PR) and Sensodyne Rapid Relief (RR)] under constant loading (250 g; 4...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505988/health-concerns-of-heterotrophic-plate-count-hpc-bacteria-in-dental-equipment-water-lines
#10
Martin J Allen, Stephen C Edberg
There is an unsubstantiated concern as to the health relevance of HPC (heterotrophic plate count) bacteria in dental equipment waterlines. The American Dental Association (ADA) web site includes guidelines for controlling HPC populations and implies that HPC populations >500 CFU/mL as a "health" benchmark. The world-wide published literature including the United Nations fully examined this situation and concluded that HPC bacteria are not a health risk, but merely a general water quality parameter for all waters including dental water lines...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505987/a-spectroscopic-and-surface-microhardness-study-of-enamel-exposed-to-beverages-supplemented-with-ferrous-fumarate-and-ferrous-sulfate-a-randomized-in-vitro-trial
#11
RANDOMIZED CONTROLLED TRIAL
Arun M Xavier, Kavita Rai, Amitha M Hegde, Suchetha Shetty
PURPOSE: To compare the efficacy between supplementing ferrous fumarate and ferrous sulfate to carbonated beverages by recording the in vitro mineral loss and surface microhardness (SMH) changes in human enamel. METHODS: 120 enamel blocks each (from primary and permanent teeth) were uniformly prepared and the initial SMH was recorded. These enamel specimens were equally divided (n = 60) for their respective beverage treatment in Group 1 (2 mmol/L ferrous sulfate) and Group 2 (2 mmol/L ferrous fumarate)...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27505986/prevention-of-caries-with-probiotic-bacteria-during-early-childhood-promising-but-inconsistent-findings
#12
REVIEW
Mette Rose Jørgensen, Gina Castiblanco, Svante Twetman, Mette Kirstine Keller
PURPOSE: This review summarized the available literature on the prevention of childhood caries through biofilm engineering with probiotic bacteria in early childhood. METHODS: Three databases (PubMed, Cochrane Library and Trip) were searched through January, 2016 for randomized controlled trials published in English. Out of 144 abstracts, seven studies fulfilled the predetermined inclusion criteria and were quality assessed with respect to risk of bias independently by two examiners...
June 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295871/a-randomized-clinical-trial-to-assess-anti-plaque-effects-of-an-oral-hygiene-regimen-with-a-stannous-containing-sodium-fluoride-dentifrice-advanced-manual-toothbrush-and-cpc-rinse
#13
RANDOMIZED CONTROLLED TRIAL
Xiping Feng, Tao He, Michelle Cao, Yanyan He, Nelson Ji
PURPOSE: To assess the anti-plaque efficacy of an oral hygiene regimen comprised of a stannous-containing sodium fluoride dentifrice, advanced manual toothbrush, and a cetylpyridinium chloride (CPC) rinse compared to a negative control regimen. METHODS: This was a 4-week randomized and controlled, parallel group, single-center, single- blind, clinical trial in generally healthy Chinese adults with existing dental plaque. Following a 1-week acclimation period and cessation of overnight oral hygiene prior to the baseline examination, overnight pre-brushing plaque levels were assessed via digital plaque imaging analysis (DPIA)...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295870/demineralization-of-resin-sealed-enamel-by-soft-drinks-in-a-clinically-relevant-ph-cycling-model
#14
Agata A Bartels, Carla A Evans, Grace Viana, Ana K Bedran-Russo
PURPOSE: To compare the in vitro protective effect of orthodontic sealants on the enamel demineralization under a soft drink-induced erosive challenge. METHODS: The facial surfaces of bovine incisors were sectioned into 5 mm x 4 mm x 4 mm enamel blocks. Specimens were randomly assigned to three surface protection measures: control (exposed enamel), coating with Transbond XT (unfilled resin primer), or coating with Opal Seal (filled and fluoride releasing primer)...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295869/chemical-and-mechanical-degradation-of-nano-ionomer-after-two-different-surface-protections-an-in-vitro-study
#15
Iman Ibrahim ElSayad, Eman Aly Abou Auf
PURPOSE: To evaluate the effect of food-simulating liquids prior to brushing on surface roughness of a nano-ionomer restorative protected with two surface protection agents. METHODS: 90 specimens were divided into three groups according to surface protection; the first group: no surface protection; the second group: copal varnish; the third group: light cure Ketac Glaze. Each group was subdivided into three subgroups relative to the immersion solution: artificial saliva; citric acid 0...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295868/efficacy-of-an-experimental-toothpaste-containing-5-calcium-sodium-phosphosilicate-in-the-relief-of-dentin-hypersensitivity-an-8-week-randomized-study-study-2
#16
RANDOMIZED CONTROLLED TRIAL
Farzana Sufi, Claire Hall, Stephen Mason, David Shaw, Jeffery Milleman, Kimberly Milleman
PURPOSE: To compare the efficacy of an experimental toothpaste containing 5% (w/w) calcium sodium phosphosilicate (CSPS) in relieving dentin hypersensitivity (DH) with that of control toothpastes containing no known anti-sensitivity ingredients. METHODS: This was the second of two exploratory, randomized, four-treatment, examiner-blind, parallel-design, single-site, 8-week studies in healthy subjects with self-reported and clinically diagnosed DH. After an initial lead-in period, subjects were randomized to one of four study treatments: the experimental toothpaste containing 5% CSPS with a modified surfactant system, developed to enhance its organoleptic properties; an abrasivity-matched placebo formulation (0% CSPS) with additional abrasive silica replacing the CSPS; or one of two commercially available fluoride toothpastes as controls...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295867/efficacy-of-an-experimental-toothpaste-containing-5-calcium-sodium-phosphosilicate-in-the-relief-of-dentin-hypersensitivity-an-8-week-randomized-study-study-1
#17
RANDOMIZED CONTROLLED TRIAL
Farzana Sufi, Claire Hall, Stephen Mason, David Shaw, Liam Kennedy, John T Gallob
PURPOSE: To evaluate the efficacy of an experimental toothpaste containing 5% (w/w) calcium sodium phosphosilicate (CSPS) in relieving dentin hypersensitivity (DH) compared with control toothpastes containing no known anti-sensitivity ingredients. METHODS: This was the first of two exploratory, randomized, four-treatment, examiner-blind, parallel-design, single-site, 8-week studies in healthy subjects with self-reported and clinically diagnosed DH. The experimental toothpaste contained 5% CSPS with a modified surfactant system, developed to enhance its organoleptic properties...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295866/the-antimicrobial-potential-of-stevia-in-an-in-vitro-microbial-caries-model
#18
Kishta-, Maryam Derani, Gisele F Neiva, James R Boynton, Youngjoo E Kim, Margherita Fontana
PURPOSE: To determine the effect of stevia on caries development when incorporated into a cariogenic diet in a controlled microbial caries model. METHODS: 56 bovine tooth specimens (4 x 4 mm) were divided into four groups, each secured in a caries-forming vessel. All vessels were placed on an electric stirrer inside a 37°C incubator. The specimens were inoculated with Streptococcus mutans, and exposed for 4 days to circulating cycles of tryptic soy broth supplemented with 5% sucrose-TSBS (three x/day), and a mineral wash solution...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295865/in-situ-anticariogenic-activity-of-free-fatty-acids-after-sucrose-exposure-to-oral-biofilms-formed-on-enamel
#19
RANDOMIZED CONTROLLED TRIAL
Rodrigo A Giacaman, Ricardo Valenzuela-Ramos, Cecilia Muñoz-Sandoval
PURPOSE: To test whether the effect of sucrose on enamel is hampered by immediate free fatty acids exposure to the oral biofilm formed under a highly cariogenic environment, in situ. METHODS: A split-mouth, cross-over and double-blind in situ experiment was carried out with 11 volunteers who wore palatal appliances containing bovine enamel slabs. In two 15-day phases, volunteers dripped 20% sucrose onto the slabs eight times per/day for 5 minutes followed by 5 additional minutes with suspensions of 10 mM oleic, linoleic or stearic acid or sucrose (caries-positive control), four times/day...
April 2016: American Journal of Dentistry
https://www.readbyqxmd.com/read/27295864/clinical-and-spectrophotometric-evaluation-after-chlorhexidine-use-in-periodontal-flap-surgery-a-prospective-randomized-clinical-trial
#20
Lorenzo Bevilacqua, Giuliana Liani, Gaetano Castronovo, Fulvia Costantinides
PURPOSE: To evaluate by a clinical spectrophotometric analysis the staining side effect of a 0.2% chlorhexidine (CHX) mouthrinse containing an anti-discoloration system (ADS) compared with a 0.12% and a 0.2% CHX mouthrinse, after periodontal surgery. The efficacy of the products and the patient's opinion and acceptance were also assessed. METHODS: The study was carried out on 60 subjects scheduled for periodontal flap surgery at the Unit of Periodontology and Dental Hygiene (University of Trieste, Italy)...
April 2016: American Journal of Dentistry
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