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Journal of Esthetic and Restorative Dentistry

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https://www.readbyqxmd.com/read/28628735/effect-of-shade-opacity-and-layer-thickness-on-light-transmission-through-a-nano-hybrid-dental-composite-during-curing
#1
Hong-Keun Hyun, Carly K Christoferson, Carmem S Pfeifer, Chris Felix, Jack L Ferracane
OBJECTIVE: The aim of this study was to investigate the effect of shade and opacity on the change in light transmission through different thicknesses of a nano-hybrid composite during curing. MATERIALS AND METHODS: Twelve different shades of Venus Diamond (Heraeus Kulzer) were placed in disk shaped molds with thickness of 1, 2, and 3 mm (n = 3 per group) and cured with an LED light-curing unit. Initial, final and average irradiance, and the total amount of energy passing through the specimen were measured using the MARC Resin Calibrator at every 10s for a total of 40s...
June 19, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28618104/effect-of-two-different-polishing-systems-on-fluoride-release-surface-roughness-and-bacterial-adhesion-of-newly-developed-restorative-materials
#2
Gokcen Deniz Bayrak, Nuket Sandalli, Senem Selvi-Kuvvetli, Nursen Topcuoglu, Guven Kulekci
OBJECTIVES: To evaluate the effects of two different polishing systems on fluoride release, surface roughness and bacterial adhesion of five restorative materials MATERIALS AND METHODS: The study groups were comprised of five different restorative materials, Beautifil II (B); GCP Glass Fill (G); Amalgomer CR (A); Dyract XP (D); Fuji IX GP (F) and 21 specimens were prepared from each material. Each group was divided into three subgroups according to the polishing system: Mylar (control) (C), Sof-lex (S), and Enhance-Pogo (EP)...
June 15, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28581693/a-prospective-clinical-trial-to-assess-the-optical-efficacy-of-pink-neck-implants-and-pink-abutments-on-soft-tissue-esthetics
#3
Mindy S Gil, Shigemi Ishikawa-Nagai, Hawazin W Elani, John D Da Silva, David M Kim, Dennis Tarnow, Ulrike Schulze-Späte, Nurit Bittner
OBJECTIVE: The purpose of this prospective, randomized, controlled, multicenter clinical study was to analyze the optical effects of an anodized pink colored implant shoulder/abutment system in the peri-implant mucosa of immediately placed dental implants. MATERIALS AND METHOD: Forty subjects with a restoratively hopeless tooth in the maxillary esthetic zone, were recruited and randomized to receive either a pink-neck implant, or a conventional gray implant. All patients received an immediate implant and immediate provisional and two identical CAD/CAM titanium abutments with different surface colors: pink and gray, and one zirconia all-ceramic crown...
June 5, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28568745/effect-of-resin-infiltration-on-the-color-and-microhardness-of-bleached-white-spot-lesions-in-bovine-enamel-an-in-vitro-study
#4
Sidika Aynur Horuztepe, Meserret Baseren
OBJECTIVES: The aim of this study was to investigate both the effect of resin infiltration on the color and microhardness of white spot lesions (WSLs) that treated with bleaching and to analyze the penetration of the infiltrant. MATERIALS AND METHODS: In each of 135 bovine enamel specimens, WSLs were produced. The samples were then randomly divided into three groups (n = 45): group I, bleached; group II, resin-infiltrated; group III, bleached and resin-infiltrated...
June 1, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28560844/evaluation-of-the-skeletal-and-dental-effects-in-orthodontic-patients-with-maxillary-lateral-incisor-agenesis
#5
Suleyman K Buyuk, Serkan Ozkan, Y Atakan Benkli, Akif Arslan, Ersan Celik
OBJECTIVE: The purpose of this study was to evaluate the transverse dimension of the dentoalveolar and skeletal widths in both unilateral (UMLIA) and bilateral (BMLIA) maxillary lateral incisor agenesis groups. MATERIALS AND METHODS: The study sample consisted of 59 patients (34 females and 25 males) divided into three groups as UMLIA group (16 patients; 14.94 ± 1.37 years), BMLIA group (21 patients; 14.46 ± 1.53 years) and control group (22 patients; 15...
May 31, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28560842/three-dimensional-stereophotogrammetric-analysis-of-50-smiles-a-study-of-dento-facial-proportions
#6
R Ceinos, L Lupi, A Tellier, M F Bertrand
OBJECTIVES: The purpose of this study was to analyze 50 smiles using 3D stereophotogrammetry (3D-spg)-based facial reconstruction, to calculate ratios involving measurements of the distances between dental and facial landmarks and to compare these ratios with the golden ratio φ (1.618). MATERIALS AND METHODS: Fifty subjects with no obvious malocclusion participated in this study. For each subject, 4 photographs were acquired using the LifeViz Mini™, an absolute calibration 3D-spg system...
May 31, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28560816/scan-layered-reconstructions-a-pilot-study-of-a-nondestructive-dental-histoanatomical-analysis-method-and-digital-workflow-to-create-restorations-driven-by-natural-dentin-and-enamel-morphology
#7
João Malta Barbosa, Nick Tovar, Pablo A Tuesta, Ronaldo Hirata, Nuno Guimarães, José C Romanini, Marjan Moghadam, Paulo G Coelho, Leila Jahangiri
OBJECTIVE: This work aims to present a pilot study of a non-destructive dental histo-anatomical analysis technique as well as to push the boundaries of the presently available restorative workflows for the fabrication of highly customized ceramic restorations. MATERIALS AND METHODS: An extracted human maxillary central incisor was subject to a micro computed tomography scan and the acquired data was transferred into a workstation, reconstructed, segmented, evaluated and later imported into a Computer-Aided Design/Computer-Aided Manufacturing software for the fabrication of a ceramic resin-bonded prosthesis...
May 31, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28556604/loosening-of-the-fixing-screw-in-single-implant-crowns-predisposing-factors-prevention-and-treatment-options
#8
Stefanos Kourtis, Mariana Damanaki, Sofia Kaitatzidou, Aikaterini Kaitatzidou, Vasiliki Roussou
The problem of technical complications in implants and implant-supported restorations has existed for decades. The most frequent complication is the loosening of the fixing screw, which although is not catastrophic, if it occurs repeatedly, it may affect the success of the implant therapy and the patient satisfaction. Factors that affect the frequency of prosthetic complications include: the implant-abutment connection, para-functional habits, cantilevers, and the type of restoration. Regarding the implant-abutment connection, the first systems were those with an external hexagon...
May 27, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28556552/does-the-presence-of-unilateral-maxillary-incisor-edge-asymmetries-influence-the-perception-of-smile-esthetics
#9
Joanna Betrine Ribeiro, Bruna Alecrim Figueiredo, Andre Wilson Machado
OBJECTIVE: Determine orthodontists and laypersons' perception of maxillary central and lateral incisor edge asymmetries in full-face and close-up smiles. MATERIAL AND METHODS: Four smile photos were selected for this study: two full-face and two close-up smile photos of two male subjects, a white man and an Afro-descendant man. Both were considered pleasant smiles, following some principles of an ideal smile. Images were digitally altered to create tooth wear asymmetries on the maxillary left central and lateral incisor in 0...
May 27, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28544578/clinical-assessment-of-interdental-papilla-competency-parameters-in-the-esthetic-zone
#10
Karuna Joshi, C S Baiju, Himanshu Khashu, Sumidha Bansal, Isha B Maheswari
BACKGROUND: Interdental papilla occupies the space between two adjacent teeth. Its contour and health are regarded with utmost importance in esthetic dental therapy. The loss of papillary height can result in open gingival embrasures, phonetic problems, food impaction, and esthetic concerns: therefore in order to prevent its loss and to better understand the challenges of regenerating the lost gingival papillae, it is crucial to recognize the factors that influence papilla form. AIM: The purpose of this study is to evaluate various factors associated with the fill of interdental spaces by gingival papillae MATERIAL AND METHODS: 150 interdental papillae in 30 patients were assessed with clinical and study models...
May 25, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28509361/prevalence-of-dental-developmental-anomalies-of-permanent-teeth-in-children-and-their-influence-on-esthetics
#11
Anita Fekonja
OBJECTIVE: The aim of this study was to determine the prevalence of dental developmental anomalies in permanent teeth and their influence on esthetics. MATERIALS AND METHODS: The records of 473 subjects, which comprised of orthopantomograms, clinical examination, and anamnestic data, were explored for dental developmental anomalies. Subjects with dental anomalies completed the modified questionnaire. Data on reasons for seeking the treatment as well as factors affecting the patients' satisfaction were collected...
May 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28429875/effect-of-untreated-zirconium-oxide-nanofiller-on-the-flexural-strength-and-surface-hardness-of-autopolymerized-interim-fixed-restoration-resins
#12
Abdolhamid Alhavaz, Maryam Rezaei Dastjerdi, Arman Ghasemi, Azade Ghasemi, Abolfazl Alizadeh Sahraei
OBJECTIVE: Autopolymerized poly methyl methacrylate (PMMA) resin is commonly used for the construction of interim restorations; however, it has less than optimal mechanical properties. In this article, we evaluated the reinforcing effect of adding untreated zirconia nanoparticles on the flexural strength and surface hardness of this resin. METHODS: A total of 80 specimens were fabricated. Forty each were used for the flexural strength test and for the surface hardness test...
April 21, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28417581/radiopacity-of-resin-cements-using-digital-radiography
#13
Sherif Hosney, Hanan K Abouelseoud, Omar El-Mowafy
STATEMENT OF PROBLEM: Monitoring performance of glass-ceramic based indirect restorations using radiographic imaging might be difficult due to their low radiopacity. Therefore, materials used for their cementation must possess adequate radiopacity. PURPOSE: This study determined radiopacity of a group of resin-cements used for adhesive-cementation of glass-ceramic-based restorations using digital radiography. METHODS: Two specimens were prepared from a group of resin cements (VariolinkII-opaque, VariolinkII-opaque (base), VariolinkII-Transparent, VariolinkII-Transparent (base), Nexus, RelyX Unicem, RelyX ultimate, Duolink, Monocem and Resinomer) and longitudinal sections of same thickness were obtained from molar and premolar...
April 18, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28343370/the-esthetic-and-psychologic-benefits-of-an-intraoperative-provisional-restoration
#14
Robert D Walter, Charles J Goodacre
OBJECTIVE: When multiple visible teeth are prepared, the prolonged treatment time may lead to patients needing a break that requires them to leave the operatory. Such a situation allows the patient to view their prepared teeth, a process that can be disconcerting to some patients. CLINICAL CONSIDERATIONS: An intraoperative provisional restoration can be made by using a thermoplastic vacuum-formed matrix of the patient's teeth that is filled with white-colored impression material and then placed over the prepared teeth to form a provisional restoration...
March 26, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28371095/performance-of-dental-students-in-shade-matching-impact-of-training
#15
Adriana P Buhrer Samra, Marcella G Moro, Rui F Mazur, Sergio Vieira, Evelise M De Souza, Andrea Freire, Rodrigo N Rached
OBJECTIVE: The present study evaluated the effect of training on dental students' ability for matching two different shade guides. MATERIALS AND METHODS: The study was conducted in 2012. The participants were 88 male and female undergraduate dental students from Brazil and Portugal, with or without previous color education and vision refractive errors (response rate of 73.33%). They were asked to match a pair set of the shade guides Vita Classical (VC) and Vitapan 3D Master (3DM), with a 20-minutes' rest between each match...
April 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28198163/color-education-and-training-in-dentistry-a-first-hand-perspective
#16
EDITORIAL
Stephen F Bergen, Rade D Paravina
No abstract text is available yet for this article.
April 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28194869/the-effect-of-brushing-and-aging-on-the-staining-and-smoothness-of-resin-composites
#17
Lisandra R Mozzaquatro, Camila S Rodrigues, Marina R Kaizer, Maristela Lago, André Mallmann, Letícia B Jacques
OBJECTIVES: To evaluate the staining and smoothness of resin composites undergoing aging in water or red wine and simulated brushing with or without dentifrice. METHODS: The resin composites (Z250 microfilled and Z350XT nanofilled) were tested according to aging media (deionized water or red wine) and surface treatment (no brushing, brushed with water, or brushed with dentifrice). Specimens (n = 10) were subjected to three aging cycles (5 days) of continuous immersion in the aging media; each followed by simulated brushing (585 strokes)...
April 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28190299/characterization-of-chitosan-tio2-nano-powder-modified-glass-ionomer-cement-for-restorative-dental-applications
#18
Marrwa A Ibrahim, Balasankar Meera Priyadarshini, Jennifer Neo, Amr S Fawzy
OBJECTIVES: We are introducing novel glass-ionomer cement (GIC) dually-modified with chitosan (CH) in the liquid phase and titanium-dioxide nano-powder (TiO2 /NP) in the powder phase. The aim was to investigate the effect of this dual-modification on the antibacterial properties against S. mutans biofilms and on the bulk and surface mechanical properties. METHODS: Commercially available powder/liquid restorative GIC was used in this study. The GIC specimens were modified with 3% (w/w) TiO2 /NP, 10% (v/v) CH solution, or dually-modified with TiO2 /CH...
April 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28190282/clinical-benefits-of-the-immediate-implant-socket-shield-technique
#19
Reza Saeidi Pour, Otto Zuhr, Markus Hürzeler, Otto Prandtner, Caroline Freitas Rafael, Daniel Edelhoff, Anja Liebermann
OBJECTIVE: Extraction-socket resorption is considered a major problem that can limit implantological rehabilitation options and compromise the esthetic outcome. Surgical techniques to reduce remodeling are of restricted predictability and commonly require several surgical interventions and grafting. This increases the treatment cost and places a physical and psychological strain on the patient. This clinical case report presents a replacement of an upper canine using the socket-shield technique (SST) with a CAD/CAM surgical guide, resulting in a predictable, high esthetic, and functional result...
April 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28185440/influence-of-gender-on-visual-shade-matching-in-dentistry
#20
Oscar E Pecho, Razvan Ghinea, Maria M Perez, Alvaro Della Bona
OBJECTIVE: Accuracy on visual shade matching (VSM) is one of the most difficult procedures in esthetic dentistry. Some variables can influence on this process and gender is one of the most controversial. This observational study evaluated the influence of gender on accuracy of VSM. MATERIALS AND METHODS: One-hundred observers (65 females and 35 males) shade matched four human upper central incisors (UCI) to shade tabs from Vita Classical (VC) shade guide. In addition, the spectral reflectance values from the four UCI and from the 16 VC shade tabs were measured using a spectroradiometer (SP)...
April 2017: Journal of Esthetic and Restorative Dentistry
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