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Journal of Dentistry

Sonia K Makhija, Michael E Robinson, James D Bader, Daniel A Shugars, Mark S Litaker, Hong R Im, D Brad Rindal, Daniel J Pihlstrom, Cyril Meyerowitz, Valeria V Gordan, Meredith K Buchberg, Gregg H Gilbert
OBJECTIVE: Case presentations (vignettes) were completed by dentists in the National Dental Practice-Based Research Network study "Decision Aids for the Management of Suspicious Occlusal Caries Lesions (SOCLs)". The objective was to determine dentists' decision strategies for SOCLs). METHODS: 107 dentists viewed a series of 16 vignettes that represented all combinations of 4 clinical cues: color, luster, lesion roughness, and patient-level caries risk. Each vignette included a patient description and a photograph of a tooth presenting the 4 cues...
November 11, 2017: Journal of Dentistry
Sara Wallace, Stefanie Samietz, Meriem Abbas, Gerald McKenna, Jayne V Woodside, Martin Schimmel
OBJECTIVES: With a decreased number of teeth, a reduction in chewing function can contribute to changes in food choices and ultimately impact on overall nutritional status. This study compared the impact of two tooth replacement strategies for partially dentate older patients on masticatory performance and nutritional status. METHODS: Patients aged 65 years and older were randomly allocated to two different treatment groups. For the RPDP-group (removable partial dental prostheses) each participant was restored to complete dental arches with cobalt-chromium removable prostheses...
November 10, 2017: Journal of Dentistry
Felipe Weidenbach Degrazia, Bruna Genari, Vicente Castelo Branco Leitune, Rodrigo Alex Arthur, Santiago Arias Luxan, Susana Maria Werner Samuel, Fabrício Mezzomo Collares, Salvatore Sauro
OBJECTIVE: To evaluate the immediate enamel bond strength, in situ degree of conversion and the polymerisation rate of three experimental orthodontic adhesives containing triclosan-loaded halloysite nanotubes. The antibacterial and bioactivity properties of such experimental materials were also assessed. MATERIALS AND METHODS: Three experimental orthodontic adhesives were formulated by incorporating triclosan-loaded halloysite nanotubes (TCN-HNT) at different concentrations (5wt%, 10wt% and 20wt%) into a resin blend (Control)...
November 7, 2017: Journal of Dentistry
Marta Mazur, Stephen Westland, Fabrizio Guerra, Denise Corridore, Maurizio Vichi, Atonello Maruotti, Gianna Maria Nardi, Livia Ottolenghi
OBJECTIVES: An evaluation method is proposed to qualitatively and quantitatively evaluate the clinical outcome of the enamel hypomineralization treatment with infiltrative resin in young adolescents. The aesthetic outcome is assessed before and after treatment by visual evaluation using FDI-colour match criteria and by spectrophotometric analysis using the CIEDE2000 colour difference formula. The visual (subjective) results are compared with the spectrophotometric (objective) approach...
November 2, 2017: Journal of Dentistry
Kristina Bertl, Arlinda Parllaku, Nikolaos Pandis, Kåre Buhlin, Björn Klinge, Andreas Stavropoulos
OBJECTIVES: To evaluate the effect of local and/or systemic statin use as an adjunct to non-surgical and/or surgical periodontal therapy. DATA: Literature search according to PRISMA guidelines with the following eligibility criteria: (a) English or German language; (b) interventional studies; (c) statins as monotherapy or as an adjunct to non-surgical and/or surgical treatment of periodontitis; (d) clinical and/or radiographic treatment effect size of statin intake reported...
November 1, 2017: Journal of Dentistry
Piyada Gaewkhiew, Wael Sabbah, Eduardo Bernabé
INTRODUCTION/OBJECTIVE: A systematic review was conducted to explore whether tooth loss affects dietary intake and nutritional status among adults. DATA: Longitudinal studies of population-based or clinical samples of adults exploring the effect of tooth loss on food/dietary/nutrient intake and/or nutritional status were included for consideration. The risk of bias was assessed using the Newcastle-Ottawa Scale for cohort studies. SOURCES: A search strategy was designed to find published studies on MEDLINE, EMBASE and LILACS up to March 2017...
October 31, 2017: Journal of Dentistry
Sara Tiemi Felipe Akabane, Alberto Carlos Botazzo Delbem, Juliano Pelim Pessan, Luhana Santos Gonzales Garcia, Nayara Gonçalves Emerenciano, Diego Felipe Mardegan Gonçalves, Marcelle Danelon
OBJECTIVE: This in situ study evaluated the effect of the association of low-F (4,500μg F/g) gel containing TMP and FT (1,100μg F/g) on enamel demineralization. METHODS: This crossover and double-blind study consisted of five phases of seven days each. Volunteers (n=12) wore palatal appliances containing four enamel blocks. The cariogenic challenge was performed with 30% sucrose solution (six times/day). Treatments were: placebo toothpaste (PT, no fluoride/TMP); 1,100μg F/g toothpaste (FT); FT+4,500μg F/g+5%TMP gel (FT+TMP gel); FT+9,000μg F/g gel (FT+9,000 gel) and FT+12,300μg F/g (FT+Acid gel)...
October 30, 2017: Journal of Dentistry
Nasima Kanwal, Delia S Brauer, Jonathan Earl, Rory M Wilson, Natalia Karpukhina, Robert G Hill
OBJECTIVES: The in-vitro dissolution of bioactive glass-based toothpastes and their capacity to form apatite-like phases in buffer solutions have been investigated. MATERIALS AND METHODS: The commercial toothpaste samples were tested on immersion in artificial saliva, Earle's solution and Tris buffer for duration from 10minutes to four days. The powder samples collected at the end of the immersion were studied using solid-state (31)P and (19)F nuclear magnetic resonance spectroscopy (NMR), X-ray powder diffraction and Fourier transform infrared (FTIR) spectroscopy...
October 30, 2017: Journal of Dentistry
Nélio Bairros Dornelles, Fabrício Mezzomo Collares, Bruna Genari, Gabriela de Souza Balbinot, Susana Maria Werner Samuel, Rodrigo Alex Arthur, Fernanda Visioli, Silvia Stanisçuaski Guterres, Vicente Castelo Branco Leitune
AIM: To develop an endodontic sealer with amoxicillin-loaded microsphere and to evaluate its properties. METHODS: Experimental sealer was obtained by mixing 70wt% UDMA, 15wt% GDMA and 15wt% BISEMA. In addition, CQ, DHEPT and PB were incorporated at 1 mol% and 0.01wt% BHT and 10wt% YbF3. Microspheres were produced by drying in spray dryer. Two experimental groups (10 and 15wt% of microspheres) and one control group (without microspheres) were formulated. The sealers were evaluated for the degree of conversion (n=3), degradation in solvent (n=3), drug release profile (n=3), antimicrobial activity (n=3), flow (n=3), film thickness (n=3) and cytotoxicity (n=3)...
October 26, 2017: Journal of Dentistry
G T Rocca, R Daher, C M Saratti, R Sedlacek, T Suchy, A J Feilzer, I Krejci
OBJECTIVES: to explore fatigue limits of ceramic endocrowns for premolars. METHODS: Forty-eight devitalized premolars were cut at the CEJ. They were restored with standardized CAD-CAM lithium disilicate reinforced ceramic restorations (IPS e.max CAD, Ivoclar-Vivadent) and divided into four Groups (n=12): overlays (Group A, no endo-core, negative control), endocrowns with an endo-core of 2mm (Group B), 4mm (GroupC) and crowns with post and core (Group D, positive control)...
October 26, 2017: Journal of Dentistry
Rafael Simões Gonçalves, Polliana Mendes Candia Scaffa, Marina Ciccone Giacomini, Marília Afonso Rabelo Buzalaf, Heitor Marques Honório, Linda Wang
OBJECTIVES: Because of its ability to act as an antiproteolytic agent, the effect of sodium trimetaphosphate (STMP) against specific enzymes extracted from sound dentin and its performance under acidic challenge on demineralized dentin were investigated. METHODS: The antiproteolytic potential of STMP (0.5%, 1.0%, and 1.5%) was assessed in triplicate by zymography. For the evaluation of remineralization activity, 50 bovine-root dentin specimens were selected and randomly divided into 5 groups (n=10)...
October 24, 2017: Journal of Dentistry
Marco Ferrari, Serhat Koken, Simone Grandini, Edoardo Ferrari Cagidiaco, Tim Joda, Nicola Discepoli
OBJECTIVES: The concept of Cervical Margin Relocation (CMR) consists on placing a base layer of direct resin composite to elevate supra-gingivally the proximal indirect bonded restorations. The aims of this clinical study were to evaluate 1. Bleeding on Probing (BoP) on posterior indirect restorations with one interproximal margin relocated cervically, and 2. possible correlation between depth of the interproximal margins and BoP. METHODS: CMR (Group 1) and shoulder preparations (Group 2) were performed in 35 posterior teeth and evaluated after 12 months (T12)...
October 20, 2017: Journal of Dentistry
Marquillier Thomas, Doméjean Sophie, Le Clerc Justine, Chemla Florence, Gritsch Kerstin, Maurin Jean-Christophe, Millet Pierre, Pérard Matthieu, Grosgogeat Brigitte, Dursun Elisabeth
OBJECTIVES: A scoping review was conducted to explore the use of FDI criteria 10 years after their introduction. The first aim was to compare the amount of studies using the FDI and/or the modified USPHS criteria. The second aim was to analyse the use of the FDI criteria in clinical trials evaluating direct dental restorations. DATA: Listing of studies using FDI and/or USPHS criteria per year since 2007. Clinical studies related to the assessment of direct restorations using FDI criteria...
October 18, 2017: Journal of Dentistry
Anna Miyayasu, Manabu Kanazawa, Ayami Jo, Yusuke Sato, Shunsuke Minakuchi
OBJECTIVES: To compare the cost and to evaluate cost-effectiveness of fabricating mandibular complete dentures (CDs) using two different impression methods. METHODS: A crossover randomized controlled trial including 27 edentulous participants was performed. Mandibular CDs were fabricated using two different impression methods, as follows: (i) conventional method using a custom tray border moulded with impression compound and silicone and (ii) simplified method using a stock tray and alginate...
October 17, 2017: Journal of Dentistry
J F Esquivel-Upshaw, M J Kim, S M Hsu, N Abdulhameed, R Jenkins, D Neal, F Ren, A E Clark
OBJECTIVES: To test the hypothesis that there is no difference in the in vivo maximum wear of enamel opposing monolithic zirconia crowns, enamel opposing porcelain fused to metal crowns and enamel opposing enamel. METHODS: Thirty patients needing single crowns were randomized to receive either a monolithic zirconia or metal-ceramic crown. Two non-restored opposing teeth in the same quadrants were identified to serve as enamel controls. After cementation, quadrants were scanned for baseline data...
October 16, 2017: Journal of Dentistry
Suhaym Mubeen, Kunal Patel, Ziba Cunningham, Niamh O'Rourke, Nikolaos Pandis, Martyn T Cobourne, Jadbinder Seehra
OBJECTIVES: The primary aim of this study was to evaluate the quality of published dental clinical guidelines using the AGREE II instrument. METHODS: Online searching of a wide range of organisations (national and International) was undertaken to identify dental clinical practice guidelines published between 2000-2014. The quality of each included guideline was assessed in relation to the AGREE II instrument by four assessors independently. Inter-rater agreement was assessed...
October 11, 2017: Journal of Dentistry
Manikandan Ekambaram, Robert P Anthonappa, Sharaschandra R Govindool, Cynthia Ky Yiu
OBJECTIVE: To compare bonding of dental adhesive to hypomineralized enamel (HE) after pre-treatment with either 5% sodium hypochlorite (NaOCl) solution or papain-based papacarie gel. METHODS: Normal enamel (NE) and HE obtained from hypomineralized first permanent molars were acid-etched with 32% phosphoric acid and randomly allocated into no deproteinization, deproteinization using 5% NaOCl, or deproteinization usping papacarie gel groups. Subsequently, the specimens were bonded, packed with composite resins and subjected to micro-shear bond strength (MSBS) testing and the data analysed using 2-way ANOVA and Tukey tests...
October 11, 2017: Journal of Dentistry
Saoirse O'Toole, David Bartlett
OBJECTIVES: To assess the interplay between dietary acid intake, toothbrushing and erosive tooth wear as aetiological factors in self-reported DH MATERIALS AND METHODS: This is a secondary analysis on previously collected data from 600 participants with (n=300) and without (n=300) severe erosive tooth wear. Participants recruited from restorative clinics of King's College London Dental Institute (REC Ref 14/EM/1171) were questioned on their self-reported DH, frequency and timing of dietary acid intake, habits associated with consumption of dietary acids and tooth brushing habits...
October 7, 2017: Journal of Dentistry
Ching-Chang Ko, Dong-Ho Yi, Dong Joon Lee, Jane Kwon, Franklin Garcia-Godoy, Yong Hoon Kwon
OBJECTIVE: The aim of this study was to identify the factors derived from the 405nm laser-induced autofluorescence (AF) spectra that could be used to diagnose and stage caries. MATERIALS AND METHODS: Teeth (20 teeth per stage) were classified as sound, stage II, III, and IV based on a visual and tactile inspection. The specimens were re-examined and reclassified based on micro-CT analysis. From the teeth, the AF was obtained using a 405nm laser. Three spectral factors (spectral slope at 550-600nm, area under the curve at 500-590nm, and two-peak ratio between 625 and 667nm) were derived from the AF spectra...
October 6, 2017: Journal of Dentistry
Yiyuan Xue, Qian Lu, Yuan Tian, Xuedong Zhou, Lei Cheng, Biao Ren
OBJECTIVES: To evaluate the effects of 8% arginine-containing toothpaste on the dental plaque of no caries (NC) and high caries (HC) individuals in situ. METHODS: 6 no caries (DMFT=0) and 6 high caries (DMFT≥6) individuals wearing a self-developed in situ dental plaque acquisition device were involved in a randomized double-blinded crossover study for 6 weeks: including lead-in (1 week), arginine-free (2 weeks), washout (1 week) and arginine-active (2 weeks) stages...
October 5, 2017: Journal of Dentistry
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