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Journal of Esthetic and Restorative Dentistry

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https://www.readbyqxmd.com/read/28734081/whitening-dependent-changes-of-fluorescence-of-extracted-human-teeth
#1
Natalie Pereira Sanchez, Aleksandar Aleksic, Miroslav Dramicanin, Rade D Paravina
OBJECTIVE: To evaluate in vitro the fluorescence properties of extracted human teeth whitened with 40% hydrogen peroxide. MATERIALS AND METHODS: A total of 28 extracted human teeth were pumiced for 1 minute using a low-speed dental handpiece and a disposable rubber cup. Pre-whitening fluorescence measurements (T0), maximum excitation (Exmax ), maximum emission (Emmax ), and maximum intensity (Imax 10(8) ), were performed using a spectrofluorometer. After T0 measurements, the teeth were whitened using the in-office method with 40% hydrogen peroxide, three times for 20 minutes...
July 22, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28734061/evaluation-of-a-technique-for-color-correction-in-restoring-anterior-teeth
#2
Gabrielle Branco Rauber, Jussara Karina Bernardon, Luiz Clovis Cardoso Vieira, Luiz Narciso Baratieri
OBJECTIVE: This study aimed to evaluate the ability of the proposed technique in producing restorations that exhibit mimesis with tooth structure and to define a restorative clinical protocol. MATERIALS AND METHODS: For this study a typodont was used. The right upper central incisor with Class IV lesion was restored with the layering technique (reference tooth, RT). For the left upper central incisor with Class IV lesion, six teeth were restored monochromatically (test teeth, TT), using DA3...
July 22, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28712152/teeth-bleaching-with-low-concentrations-of-hydrogen-peroxide-6-and-catalyzed-by-led-blue-450%C3%A2-%C3%A2-%C3%A2-10-nm-and-laser-infrared-808%C3%A2-%C3%A2-%C3%A2-10-nm-light-for-in-office-treatment-randomized-clinical-trial-1-year-follow-up
#3
Patricio Vildósola, Jessica Bottner, Francisca Avalos, Isidora Godoy, Javier Martín, Eduardo Fernández
OBJECTIVES: The aim of this study was to evaluate color longevity after a year of in-office bleaching with gel (6% hydrogen peroxide HP, LED blue/laser infrared activation system) compared to a 35% control concentration in a split-mouth study model. MATERIALS AND METHODS: Thirty-one patients were initially treated. The bleaching procedure with 6% or 35% gel HP was performed randomly in the upper half arcade of each patient. The color was measured at baseline and at 1 week, 1 month, and 1 year using the spectrophotometer Vita Easyshade, Vita Bleached, and Vita classical Shade guide organized by value...
July 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28681501/systematic-development-of-esthetics-and-function-in-a-young-patient-with-maxillary-dental-aplasia
#4
D Edelhoff, O Prandtner, R Saeidi Pour, A Wichelhaus, A Liebermann
OBJECTIVES: Full-arch rehabilitations in young patients suffering from dental agenesis should compensate for the reduced vertical dimension of occlusion and restore both esthetics and function at minimal biological cost. This requires precise planning and maximum patient compliance during the preprosthetic phase. The pretreatment period with tooth-colored splints promotes a predictable outcome of the final restorations. Clinical considerations: Thanks to better restorative materials and adhesive techniques and increased knowledge of how to preserve sound tooth structures, prosthetic dentistry has increasingly turned toward minimally invasive procedures...
July 6, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28681488/endodontic-treatment-of-dens-evaginatus-by-performing-a-splint-guided-access-cavity
#5
Jesús Mena-Álvarez, Cristina Rico-Romano, Ana Belén Lobo-Galindo, Álvaro Zubizarreta-Macho
AIM: Dens evaginatus (DE) is described as an unusual dental malformation. Tooth structure variations attached to this anatomical disturbance complicates the performance of a conservative access cavity for a conventional root canal treatment. Author's purpose is to describe the treatment of a type V DE by using splits as guides to perform access cavity. CLINICAL CONSIDERATIONS: This clinical case shows a root canal treatment of a type V DE diagnosed by using a cone beam computed tomography (CBCT)...
July 6, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28654721/comparative-evaluation-of-esthetic-changes-in-nonpitted-fluorosis-stains-when-treated-with-resin-infiltration-in-office-bleaching-and-combination-therapies
#6
Neeraj Gugnani, I K Pandit, Monika Gupta, Shalini Gugnani, Sugandhi Soni, Virender Goyal
OBJECTIVES: Dental fluorosis leads to esthetic deviation and varies from nonpitted white opacities, dark brown stains to pitting or structural breakdown of enamel surface. Treatment for fluorosis depends on the severity of condition and includes both noninvasive methods and invasive methods. Recently resin infiltration has been proposed as an alternative treatment for nonpitted fluorosis. This study was done to evaluate the esthetic changes in nonpitted fluorosis stains when treated with resin infiltration, in-office bleaching and combination therapies...
June 27, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28653808/a-novel-technique-for-reference-point-generation-to-aid-in-intraoral-scan-alignment
#7
Walter G Renne, Zachary P Evans, Anthony Mennito, Mark Ludlow
OBJECTIVE: When using a completely digital workflow on larger prosthetic cases it is often difficult to communicate to the laboratory or chairside Computer Aided Design and Computer Aided Manufacturing system the provisional prosthetic information. The problem arises when common hard tissue data points are limited or non-existent such as in complete arch cases in which the 3D model of the complete arch provisional restorations must be aligned perfectly with the 3D model of the complete arch preparations...
June 27, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28628735/effect-of-shade-opacity-and-layer-thickness-on-light-transmission-through-a-nano-hybrid-dental-composite-during-curing
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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