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Journal of Esthetic and Restorative Dentistry

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https://www.readbyqxmd.com/read/27935196/an-in-vitro-evaluation-of-human-enamel-surfaces-subjected-to-erosive-challenge-after-bleaching
#1
Maria de Fátima Carvalho Vasconcelos, Andréa Fonseca-Gonçalves, Adílis Kalina Alexandria de França, Urubatan Vieira de Medeiros, Lucianne Cople Maia, Celso Silva Queiroz
OBJECTIVES: This study aimed to evaluate whether tooth enamel bleached with hydrogen peroxide (H2 O2 ) is more susceptible to erosion when compared with unbleached tooth enamel; and whether the presence of calcium (Ca) in the bleaching gel influenced this process. MATERIALS AND METHODS: Enamel blocks were prepared from human molars, and submitted to surface microhardness analysis (baseline). Blocks were prepared and randomly divided into four treatment groups (n = 20): G1 and G2-bleached with 7...
December 9, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27935179/association-between-confidence-in-smiling-and-esthetic-characteristics
#2
Francisco Wilker Mustafa Gomes Muniz, Denise Juaçaba Cavalcante, Maria Mônica Studart Mendes Moreira, Lidiany Karla Azevedo Rodrigues, Carlos Augusto de Oliveira Fernandes, Paulo César de Almeida, Rosimary de Sousa Carvalho
OBJECTIVE: This study aimed to analyze which facial, gingival and dental characteristics are associated with confidence in smiling among 75 subjects seeking treatment in a northern Brazilian public dental university. MATERIALS AND METHODS: Clinical examinations and three standardized photographs of each subject were taken by one trained examiner. In addition, a questionnaire was applied to assess confidence in smiling. The subjects were dichotomized into two groups, non-confident (n = 36) and confident (n = 39) in smiling...
December 9, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27925387/microcomputed-tomography-evaluation-of-volumetric-shrinkage-of-bulk-fill-composites-in-class-ii-cavities
#3
Hamad Algamaiah, Camila S Sampaio, Lindiane C Rigo, Malvin N Janal, Marcelo Giannini, Estevam A Bonfante, Paulo G Coelho, Andre F Reis, Ronaldo Hirata
PURPOSE: This study aimed to quantify polymerization shrinkage of one conventional and three bulk-fill composites, under bonded and unbonded conditions, in Class II preparations using 3D microcomputed tomography (μCT) and report its location. MATERIALS AND METHODS: Preparations (2.5 mm occlusal depth × 4 mm wide × 4 mm mesial box and 1 mm beyond the CEJ distal box depth) were made in 48 human extracted molars (n = 6). Four composites were tested, one regular (Vitalescence/VIT) and three bulk-fill: SureFil SDR Flow (SDR), Tetric EvoCeram Bulk Fill (TET), and Filtek flowable Bulk Fill (FIL)...
December 7, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27792268/in-office-bleaching-during-orthodontic-treatment
#4
Mauricio Neves Gomes, Hélio Dutra, Alexandre Morais, Ricardo Sgura, André Guaraci Devito-Moraes
OBJECTIVE: To demonstrate that it is possible to pursue teeth whitening treatment protocols during orthodontic treatment with no esthetic loss. CLINICAL CONSIDERATIONS: Many patients undergoing orthodontic treatment desire to have a straight and well aligned dentition, but also whiter teeth. For many years, it was believed that carrying out a whitening treatment with positioned orthodontic brackets in place would result in localized spots on the enamel labial surfaces of teeth...
October 28, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27596715/fracture-resistance-of-premolars-restored-either-with-short-fiber-or-polyethylene-woven-fiber-reinforced-composite
#5
Mügem Asli Gürel, Bağdagül Helvacioğlu Kivanç, Adil Ekıcı, Tayfun Alaçam
OBJECTIVE: To compare the fracture resistance of endodontically treated maxillary premolars with one remaining cavity wall restored either with short fiber-reinforced composite or polyethylene woven fiber-reinforced composite. MATERIALS AND METHODS: Forty-eight maxillary premolars were endodontically treated and randomly assigned to four groups (n = 12). Palatal cusp was removed, buccal wall was remained. In groups 1 to 3, standardized cavities were prepared in the palatal canal entrances...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27562053/fracture-behavior-of-minimally-invasive-posterior-and-fixed-dental-prostheses-manufactured-from-monolithic-zirconia
#6
Wolfgang Bömicke, Stefan Rues, Verena Hlavacek, Peter Rammelsberg, Marc Schmitter
OBJECTIVES: To compare ultimate fracture load (Fu ), load at first damage (F1d ), and fracture pattern for posterior fixed dental prostheses (FDPs) manufactured from translucent, yttria-stabilized zirconia polycrystal. METHODS: Premolar-size FDPs in 4 test groups (n = 16/group) were constructed as veneered complete crown-retained (group 1), monolithic complete crown-retained (group 2), monolithic partial veneer crown-retained (group 3), or monolithic resin-bonded (group 4) prostheses with minimum zirconia wall thickness (0...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27439664/efficacy-of-diode-laser-and-gluma-on-post-preparation-sensitivity-a-randomized-split-mouth-clinical-study
#7
Haluk Baris Kara, Umut Cakan, Burcu Yilmaz, Pelin Inan Kurugol
OBJECTIVE: This study aimed to compare the efficacy of a 940-nm diode laser and Gluma desensitizer on post-preparation sensitivity of prepared teeth. MATERIALS AND METHODS: Twenty patients with 76 teeth participated in the study. For each patient, prepared molar or premolar in one quadrant were individually irradiated by laser. In the symmetrical quadrant, Gluma was applied onto the prepared teeth. No treatment was performed in the control group. Temporary crowns were placed after preparation...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27426275/a-protocol-for-treatment-of-minor-orthodontic-relapse-during-retention
#8
Damien Brezulier, Yann-Loïg Turpin, Olivier Sorel
OBJECTIVES: Successful orthodontic treatment presupposes that the esthetic and functional outcomes are maintained. Bonded retainers on the incisors and canines provide this stability. Failure of one or two units exposes the teeth to a relapse. This article describes the use of a retainer wire and an elastic device to provide rapid, effective and esthetic correction of incipient crowding. CLINICAL ASPECTS: After removing the retainer, a fixed appliance comprising a replacement retainer and a clear elastic are positioned...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27354182/no-prep-rehabilitation-of-fractured-maxillary-incisors-with-partial-veneers
#9
Mirco Vadini, Maurizio D'Amario, Francesco De Angelis, Antonello Falco, Camillo D'Arcangelo
OBJECTIVE: Therapeutic options for dental trauma depend on the injuries' features. For patients with uncomplicated tooth fractures, adhesive materials and composite partial veneers may be a therapeutic solution that completely preserves healthy tooth structure. CLINICAL CONSIDERATIONS: An ultra-conservative approach, using indirect composite partial veneers to restore fractured anterior teeth is described in these case reports. CONCLUSION: Despite the position of the finish line in the middle of the clinical crown, this solution offers functional and esthetic outcomes using an indirect composite technique, and appears to be a suitable alternative to direct composite restorations or less conservative indirect veneers...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27354089/3d-facial-effects-of-a-simulated-dental-build-up
#10
Bernadette A M M Sterenborg, Thomas J J Maal, Rinaldo D Vreeken, Bas A C Loomans, Marie-Charlotte D N J M Huysmans
OBJECTIVE: The purpose of this study was to evaluate the 3D-stereophotogrammetry technique to detect differences in facial appearance after a simulated rehabilitation. MATERIALS AND METHODS: Eleven volunteers without tooth wear participated. A 3D-stereophotograph was taken in five different situations: resting position, teeth in occlusion, and teeth in occlusion with a 1 mm-, 3 mm- or 5 mm resin block between the first molars. Cephalometric measurements were performed on the 3D-stereophotographs using the software program Maxilim(®) (Medicim NV Mechelen, Belgium)...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27264939/effect-of-finishing-and-polishing-on-the-surface-roughness-of-four-ceramic-materials-after-occlusal-adjustment
#11
Silvia P Amaya-Pajares, Andre V Ritter, Carolina Vera Resendiz, Brett R Henson, Lee Culp, Terence E Donovan
PROBLEM: Intraoral occlusal adjustment of ceramic restorations can create a significant increase in surface roughness that can produce wear of the opposing dentition. PURPOSE: To compare the surface roughness of glazed and polished monolithic ceramics with the surface roughness produced by different intraoral polishing systems on adjusted monolithic ceramics. MATERIALS AND METHODS: Milled ceramic discs (10 mm diameter × 2 mm thickness) were manufactured and distributed according to the following groups (n = 10): BruxZir (glazed and polished), Zenostar (glazed and polished), IPS Empress CAD, and IPS e...
November 12, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27767256/digital-evaluation-of-three-splinting-materials-used-to-fabricate-verification-jigs-for-full-arch-implant-prostheses-a-comparative-study
#12
Panos Papaspyridakos, Yong-Jeong Kim, Matthew Finkelman, Khaled El-Rafie, Hans-Peter Weber
PURPOSE: The primary aim of this study was to assess the accuracy of different splinting materials to make implant cast verification jigs. The secondary aim was to assess the effect of 20° implant angulation on the accuracy of casts. MATERIALS AND METHODS: An edentulous mandibular arch with five internal connection tissue level implants served as control. The three implants in the anterior region were parallel to each other and the two implants in the posterior region were distally tilted 20° bilaterally...
October 21, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27767236/morphological-simulation-of-different-incisal-embrasures-perception-of-laypersons-orthodontic-patients-general-dentists-and-orthodontists
#13
Maria Eduarda Assad Duarte, Ricardo Martins Machado, Andrea Fonseca Jardim da Motta, José Nelson Mucha, Alexandre Trindade Motta
OBJECTIVE: This study aimed to evaluate how different forms of incisal embrasures influence the esthetic perception of the smile, the preferences of each group of evaluators, and the influence of gingival display. MATERIAL AND METHODS: Two photographs of a broad male and female smiles were digitally manipulated to remove imperfections and asymmetries. A second manipulation was performed on the four maxillary incisors, creating 3 different forms of incisal embrasures: rounded, semi-rounded and squared...
October 21, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27699958/effects-of-additional-acid-etching-on-the-dentin-bond-strengths-of-one-step-self-etch-adhesives-applied-to-primary-teeth
#14
Yuhyun Kim, Shin Kim, Taesung Jeong, Sung-Ae Son, Jiyeon Kim
OBJECTIVES: The aim of this study was to evaluate the bond strengths of one-step self-etch adhesives applied to primary tooth dentin with and without additional acid etching. MATERIALS AND METHODS: In total, 154 specimens were prepared using 50 naturally exfoliated primary molars. Four commercial one-step self-etch adhesives were used in this study: Scotchbond™ Universal, All-Bond Universal™, Adper™ Prompt™ L-Pop™, and Clearfil S3 Bond™. Two etch-and-rinse adhesives, Prime & Bond® NT™ and Scotchbond™ Multi-Purpose, served as controls...
October 4, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27680508/micro-ct-evaluation-of-ceramic-inlays-comparison-of-the-marginal-and-internal-fit-of-five-and-three-axis-cam-systems-with-a-heat-press-technique
#15
Norah K Alajaji, David Bardwell, Matthew Finkelman, Ala Ali
OBJECTIVES: To evaluate the marginal and internal adaptation of CAD/CAM lithium-disilicate inlay restorations fabricated by two milling systems (Five and Three-axis), and a traditional heat-press technique. METHODS: Fifteen premolar teeth with an MOD cavity preparation were fabricated. Lithium-disilicate inlay restorations were obtained by three fabrication techniques and fitted to their dies (n = 15/gp) as follows: Group-1, three-axis milling system, Group-2, five-axis milling system, Group-3, conventional heat-press technique...
September 29, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27679981/short-term-prospective-clinical-evaluation-of-monolithic-and-partially-veneered-zirconia-single-crowns
#16
Wolfgang Bömicke, Peter Rammelsberg, Thomas Stober, Marc Schmitter
OBJECTIVES: The purpose of this study was to prospectively evaluate the short-term clinical performance and esthetics of monolithic and partially (i.e., facially) veneered zirconia single crowns (MZC and PZC, respectively). METHODS: Between September 2011 and June 2013, 68 participants received 90 MZCs and 72 PZCs. Clinical study documentation was performed at crown cementation (baseline), at the 6-month follow-up, and then yearly thereafter using standardized report forms...
September 29, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27673748/immediate-implant-placement-of-a-single-central-incisor-using-a-cad-cam-crown-root-form-technique-provisional-to-final-restoration
#17
Dean Vafiadis, Gary Goldstein, David Garber, Anthony Lambrakos, Bj Kowalski
OBJECTIVE: Preserving soft and hard tissues after extraction and implant placement is crucial for anterior esthetics. This technique will show how the information gathered from a cone-beam computed tomography (CBCT) scan of the maxillary left central incisor and an intra-oral digital impression can be merged to fabricate a CAD/CAM crown-root matrix to be used as an immediate provisional restoration that mimics the natural anatomy. CLINICAL CONSIDERATIONS: Due to trauma, a left central incisor appeared to be fractured and was scheduled for extraction and implant placement...
September 27, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27637379/a-comparison-of-the-discoloration-potential-for-endosequence-bioceramic-root-repair-material-fast-set-putty-and-proroot-mta-in-human-teeth-an-in-vitro-study
#18
S Alsubait, S Al-Haidar, N Al-Sharyan
OBJECTIVE: To compare the discoloration potential of Endosequence Bioceramic Root Repair Material fast set putty (ERRMF) and ProRoot MTA (PMTA) when placed coronally in human extracted teeth over a 4-month period. METHODOLOGY: Forty-eight premolars were sectioned 2 mm below the cementoenamel junction. The pulp chambers were cleaned chemo-mechanically. The specimens were randomly assigned to three groups: PMTA, ERRMF, and no fill (control). Tooth color was measured spectrophotometrically at six time points: after material placement, after 2, 4, 8, 12, and 16 weeks...
September 17, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27622771/appearance-differences-between-lots-and-brands-of-similar-shade-designations-of-dental-composite-resins
#19
Melody N Carney, William M Johnston
OBJECTIVES: The purposes of this study were to investigate differences in two inherent appearance characteristics between lots of an enamel dental composite resin of the same shade and brand, and to further compare these differences to those of similar shade designation of a different brand of dental composite resins. METHODS: Appearance analyses proceeded for three different lots of shades A1, B2, and D3 manufactured by one company and for one lot of shade EA1 manufactured by another...
September 13, 2016: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/27612323/microleakage-around-class-v-composite-restorations-after-ultrasonic-scaling-and-sonic-toothbrushing-around-their-margin
#20
Ronald E Goldstein, Suruchi Lamba, Nathaniel C Lawson, Preston Beck, Robert A Oster, John O Burgess
OBJECTIVES: To measure microleakage around class V composite restorations after piezoelectric ultrasonic scaling and sonic toothbrushing. METHODS: 3 mm × 2 mm × 1.5 mm boxes were prepared on buccal and lingual surfaces of extracted molars centered on the cementum-enamel junction. Half the preparations were beveled (0.5 mm). Preparations were restored with composite and polished. Restorations on one side of the teeth were either traced with an ultrasonic scaler (60 seconds, n = 16) or brushed in a sonic toothbrushing machine (2 hours, n = 16)...
September 9, 2016: Journal of Esthetic and Restorative Dentistry
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