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Journal of Esthetic and Restorative Dentistry

S H Q Quek, A U J Yap, V Rosa, K B C Tan, K H Teoh
This study investigated the color (ΔE) and translucency changes (ΔTP) of CAD/CAM composites after exposure to staining solutions using both spectrophotometer and shade-matching device. Direct (Filtek Z350XT [ZT]), indirect (Shofu Ceramage [CE]) and CAD/CAM (Shofu HC Block [HC], Lava Ultimate [LU], Vita Enamic [EN]) composite specimens measuring 12 × 14 × 1.5 mm were fabricated, divided into five groups (n = 8), and immersed in cola, tea, coffee, red wine, distilled water (control) at 37°C for 7 days...
January 17, 2018: Journal of Esthetic and Restorative Dentistry
Mohand ALBalkhi, Eyad Swed, Omar Hamadah
OBJECTIVE: To determine the efficiency of debonding porcelain laminate veneers (PLV) by using several laser parameters and two different application modes of Er:YAG laser [contact (CM) and non-contact (NCM)], by verification of the consumed PLV debonding time and the changes in dental pulp temperature. MATERIALS AND METHODS: Forty extracted non-carious human maxillary premolars were prepared for receiving PLV. Sixteen of them were divided into two groups, each of them comprised eight samples based on the application mode; group A with NCM, and group B with CM...
January 11, 2018: Journal of Esthetic and Restorative Dentistry
Cui Wang, Wen-Jie Hu, Ling-Zhi Liang, Yan-Ling Zhang, Kwok-Hung Chung
PURPOSE: This study aimed to identify the characteristics of full-smile images assessed by laypersons using visual analog scale measurement. MATERIALS AND METHODS: A total of 176 young Chinese subjects (88 males and 88 females; 20-35 years of age) with healthy dentogingival tissue were recruited to have their dynamic smiles captured using digital technology. A full-smile frame image of each subject was selected and evaluated by 22 laypersons (11 males and 11 females; 20-35 years of age) using visual analog scale measurement...
December 29, 2017: Journal of Esthetic and Restorative Dentistry
Ema Saltovic, Vlatka Lajnert, Sabina Saltovic, Daniela Kovacevic Pavicic, Andrej Pavlic, Stjepan Spalj
OBJECTIVE: Orofacial esthetics raises psychosocial issues. The purpose was to create and validate new short instrument for psychosocial impacts of altered smile esthetics. MATERIALS AND METHODS: A team of an orthodontist, two prosthodontists, psychologist, and a dental student generated items that could draw up specific hypothetical psychosocial dimensions (69 items initially, 39 in final analysis). The sample consisted of 261 Caucasian subjects attending local high schools and university (26% male) aged 14 to 28 years that have self-administrated the designed questionnaire...
December 29, 2017: Journal of Esthetic and Restorative Dentistry
Marc L Nevins, Sherif Said
OBJECTIVES: Extraction socket preservation procedures are critical to successful esthetic implant therapy. Conventional surgical approaches are technique sensitive and often result in alteration of the soft tissue architecture, which then requires additional corrective surgical procedures. This case series report presents the ability of flapless surgical techniques combined with a growth factor-enhanced bone matrix to provide esthetic ridge preservation at the time of extraction for compromised sockets...
December 28, 2017: Journal of Esthetic and Restorative Dentistry
Sergio Varela Kellesarian, Vanessa Ros Malignaggi, Khaled M Aldosary, Fawad Javed
OBJECTIVE: The aim of this comprehensive review was to assess the effectiveness of erbium lasers in the removal of all ceramic fixed dental prostheses (FDPs). OVERVIEW: Indexed databases were searched without language or time restriction up to and including December 2017 using different combinations of the following keywords: "lasers"; "phototherapy"; "crowns"; "prostheses and implants"; "inlays"; "ceramics"; "dental porcelain"; "zirconium"; "removal"; "debonding"; "fixed dental prostheses"; "veneers"; "laminates"; and "fixed bridge...
December 28, 2017: Journal of Esthetic and Restorative Dentistry
Hao Yu, Chang-Yuan Zhang, Yi-Ning Wang, Hui Cheng
OBJECTIVE: The purpose of this study was to evaluate the influence of study protocols on the effects of bleaching on the surface roughness, substance loss, flexural strength (FS), flexural modulus (FM), Weibull parameters, and color of 7 restorative materials. MATERIALS AND METHODS: The test materials included 4 composite resins, 1 glass-ionomer cement, 1 dental ceramic, and 1 polyacid-modified composite. The specimens were randomly divided into 4 groups (n = 20) according to different study protocols: a bleaching group at 25°C (group 25B), a bleaching group at 37°C (group 37B), a control group at 25°C (group 25C), and a control group at 37°C (group 37C)...
December 16, 2017: Journal of Esthetic and Restorative Dentistry
Morakot Piemjai, Spun Lenglerdphol
The purpose of this study was to evaluate the distance and/or thickness of dye penetration at enamel and cementum/dentin margins of restorations before and after vital bleaching. Class V cavities were prepared on extracted human premolars and restored with light-cured resin composite using either AQ-Bond or Single-Bond2 adhesives. Four conditions: no bleaching (control), restored before bleaching (RB), bleached and immediately restored (BIR), bleached and stored in artificial saliva for 7 days then restored (B7R), were used for each adhesive group...
December 15, 2017: Journal of Esthetic and Restorative Dentistry
Catherine O'Neill, Laurent Kreplak, Frederick A Rueggeberg, Daniel Labrie, Carlos Alberto Kenji Shimokawa, Richard Bengt Price
OBJECTIVES: To determine the effects of tooth brushing on five bulk-fill resin based composites (RBCs). METHOD: Ten samples of Filtek Supreme Enamel (control), Filtek One Bulk Fill, Tetric EvoCeram Bulk Fill, SonicFill 2, SDR flow+, and Admira Fusion X-tra were light cured for 20 seconds using the Valo Grand curing light. After 24 hours storage in air at 37°C, specimens were brushed in a random order using Colgate OpticWhite dentifrice and a soft toothbrush. Surface gloss was measured prior to brushing, after 5,000, 10,000 and 15,000 back and forth brushing cycles...
December 5, 2017: Journal of Esthetic and Restorative Dentistry
Noha A El-Wassefy, Rasha H El-Mahdy, Naglaa R El-Kholany
OBJECTIVES: To study the effect of silver nanoparticles incorporation to glass ionomer cement (GIC) on the Staphylococcus aureus biofilm in terms of bacterial growth and evaluate the incorporating effect on hardness and compressive strength. METHODS: Silver nanopowder was added in concentration 0, 1, 3, and 5 wt% to the conventional powder of GIC Fuji IX GP and then the powder is added to the liquid and mixed together with the recommended Powder/liquid ratio of 3...
December 2, 2017: Journal of Esthetic and Restorative Dentistry
Bright Chang, Ronald Goldstein, Chee Paul Lin, Sudha Byreddy, Nathaniel C Lawson
OBJECTIVES: To measure microleakage around zirconia crown margins cemented with self-adhesive resin or resin modified glass ionomer (RMGI) cement after ultrasonic scaling. METHODS: 16 molars were prepared for crowns (margin 0.5 mm coronal of cementum-enamel junction). Preparations were digitally scanned and zirconia crowns milled. Specimens were divided into two groups (n = 8): self-adhesive resin (RelyX Unicem 2) or resin modified glass ionomer (RMGI) (RelyX Luting Plus) cements...
December 1, 2017: Journal of Esthetic and Restorative Dentistry
Omnia K Tawfik, Hani E El-Nahass, Peter Shipman, Stephen W Looney, Christopher W Cutler, Mark Brunner
BACKGROUND: Lip repositioning is a conservative surgical technique used to treat excess gingival display. An array of modifications has been introduced to the technique over time and as studies show the technique and its modifications to be successful, there is little standardized information for clinicians to make informed decisions when choosing this technique for the treatment of patients with excessive gingival display (EGD). OBJECTIVES: To review the current literature on the topic of lip repositioning for the treatment of excessive EGD, exploring outcome, and result longevity...
November 27, 2017: Journal of Esthetic and Restorative Dentistry
Stephen C Berg, Jonathan Miles Stahl, Wen Lien, Casey M Slack, Kraig S Vandewalle
OBJECTIVE: The purpose of this study was to compare the effectiveness of detecting proximal carious lesions utilizing a new near-infrared transillumination (NIRTI) system (CariVu, Dexis) to traditional digital bitewing radiography (BWXR). MATERIALS AND METHODS: Thirty patients received four posterior BWXRs and all premolars and molars were individually imaged with the NIRTI device. Sixty-seven proximal carious lesions were classified based on their depth into enamel or dentin for both BWXR and NIRTI images...
November 24, 2017: Journal of Esthetic and Restorative Dentistry
Saijai Tanthanuch, Boonlert Kukiattrakoon, Kasidit Eiam-O-Pas, Kan Pokawattana, Nicha Pamanee, Wichachon Thongkamkaew, Asok Kochatung
OBJECTIVE: To evaluate surface roughness, hardness, and morphology changes of various bulk-fill resin composites eroded by different food-simulating liquids and beverages. MATERIALS AND METHODS: One hundred and thirteen specimens were fabricated in polytetrafluoroethylene cylindrical mold (10 mm in diameter and 4 mm in thickness). Before immersion, baseline data of roughness, Vicker's microhardness were recorded and surface characteristics were examined using scanning electron microscopy (SEM)...
November 24, 2017: Journal of Esthetic and Restorative Dentistry
Bruno Pereira Silva, Emilio Jiménez-Castellanos, Kyle Stanley, Eduardo Mahn, Christian Coachman, Sivan Finkel
OBJECTIVE: Asymmetric facial features such as a deviated nose and chin are common and known to affect smile esthetics. When presented with these asymmetries, the clinician must consider the impact they will have on the smile design parameters-especially the placement and angulation of the dental midline, which is a common starting point for a case involving smile design. The purpose of this article is to determine if the nose and chin deviations affect the perception of dental midline angulation...
November 24, 2017: Journal of Esthetic and Restorative Dentistry
Camillo D'Arcangelo, Mirco Vadini, Maurizio D'Amario, Zaccheo Chiavaroli, Francesco De Angelis
OBJECTIVES: No-prep veneers, although ideally considered the best option because of tooth structure maximum preservation, have been frequently criticized for some potential limitations including esthetic outcomes and periodontal complications. CLINICAL CONSIDERATIONS: A new protocol to optimize no-prep veneers restorations is presented. A key point of the proposed technique is to identify optimal margins' positions: margin is positioned in the point of maximum convexity of teeth, avoiding the over contouring of traditional no-prep veneers...
November 15, 2017: Journal of Esthetic and Restorative Dentistry
Amal Alharbi, Stefano Ardu, Tissiana Bortolotto, Ivo Krejci
OBJECTIVE: To evaluate the efficacy of in-office bleaching on stain removal from stained resin composite and ceramic computer-assisted design/computer-assisted manufacturing (CAD/CAM) blocks and direct resin composites. METHODS: Forty disk-shaped samples were fabricated from each of nine materials: six CAD/CAM (VITABLOCS Mark II, Paradigm MZ100, Exp Vita Hybrid Ceramic, VITA ENAMIC, Exp Kerr, and LAVA Ultimate) and three direct resin composites (Filtek Supreme, Venus Diamond, and Filtek Silorane)...
November 11, 2017: Journal of Esthetic and Restorative Dentistry
João Malta Barbosa, Adolf Brian Urtula, Ronaldo Hirata, João Caramês
Articulation and occlusion test materials are tools used in daily prosthodontic and restorative procedures that aid the clinicians in the evaluation of adjacent and opposing natural and/or artificial tooth contacts. A precision micrometer (Series 293, Mitutoyo, Japan) with a resolution of 0.001 mm was used to measure the thickness of five articulating papers and six articulation foils. Four of the articulating foils tested presented thicknesses inferior or equal to 21 μm, confirming their adequacy for the evaluation of natural dentitions...
November 3, 2017: Journal of Esthetic and Restorative Dentistry
Falk Schwendicke
OBJECTIVES: Based on a changed understanding of the disease caries and its pathogenesis, strategies for carious tissue removal have changed, too. This review aims to summarize these changes and to provide clinical recommendations. OVERVIEW: Removing all carious dentin from a cavity is not needed any longer to manage caries or the carious lesion. Instead, the carious lesion should be treated in a way allowing to arrest its activity, while preserving sound tooth tissue and pulp vitality...
November 12, 2017: Journal of Esthetic and Restorative Dentistry
Alexander J Hassel, Marvin Johanning, Sabine Grill, Johannes Schröder, Hans-Werner Wahl, Nicoleta Corcodel, Anna-Luisa Klotz, Peter Rammelsberg, Andreas Zenthöfer
OBJECTIVE: To evaluate changes in tooth color for 2 age cohorts (younger cohort, YC: 1950-1952; older cohort, OC: 1930-1932) over a mean observation period of 8 years. MATERIAL AND METHODS: Sixty-one participants with 106 upper central incisors were subjected to baseline and follow-up examinations (YC: n = 46/OC: n = 15). International Commission on Illumination color coordinates of 1 or 2 unrestored test teeth for each participant were recorded by use of a spectrophotometer (VITA Easyshade 1) during both measurement times...
November 12, 2017: Journal of Esthetic and Restorative Dentistry
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