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  1. 1481
    “…An ethyl­ene group of the 18-crown-6 mol­ecule is disordered over three sites with occupancies of 0.50, 0.25 and 0.25.…”
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    (5,10,15,20-Tetra­phenyl­porphyrinato-κ(4) N)zinc–18-crown-6 (1/1)
  2. 1482
    “…This treatment option for complicated subgingival crown-root fracture depicts the involvement of periodontal surgical exposure, endodontic management and ultimately the fragment reattachment.…”
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    Reattachment of a Vertical Complicated Subgingival Crown Root Fracture in a 10-Year Old Child: A Case Report
  3. 1483
    “…The fracture load and failure pattern of the tested groups were investigated by applying axial load to the ceramic crowns (n=10). Data were analyzed statistically by one-way ANOVA and Tukey’s post-hoc test was used for pair-wise comparisons (α=0.05). …”
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    Effect of different ferrule designs on the fracture resistance and failure pattern of endodontically treated teeth restored with fiber posts and allceramic crowns
  4. 1484
    “…OBJECTIVES: There are no international standards for relating fetal crown–rump length (CRL) to gestational age (GA), and most existing charts have considerable methodological limitations. …”
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    International standards for early fetal size and pregnancy dating based on ultrasound measurement of crown–rump length in the first trimester of pregnancy
  5. 1485
    “…In this case report, an approach combining platelet-rich fibrin for the treatment of osseous defect and a modified crown preparation technique to reposition the crown was done on a pathologically migrated right lateral incisor.…”
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    Management of a pathologically migrated upper anterior tooth using platelet-rich fibrin and a modified crown preparation technique
  6. 1486
    “…OBJECTIVE: The purpose of this study was to investigate the influence of (1) exposed lingual zirconia with veneered zirconia crowns, and (2) reduced lingual thickness of monolithic lithium disilicate crowns on the fracture resistance of the crowns after cyclic loading. …”
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    Fracture resistance of porcelain veneered zirconia crowns with exposed lingual zirconia for anterior teeth after thermal cycling: An in vitro study
  7. 1487
    “…MATERIALS AND METHODS: Manual searches followed by a MEDLINE search were conducted to select prospective and retrospective cohort studies on single crowns (SCs), fixed partial denture (FPD), and tooth implant connected prostheses with a mean follow-up time of minimum of 5 years. …”
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    Meta-analysis of Failure and Survival Rate of Implant-supported Single Crowns, Fixed Partial Denture, and Implant Tooth-supported Prostheses
  8. 1488
    por Coutrot, Frédéric
    Publicado 2015
    “…In the very recent past, the triazolium moiety proved to interact with crown ethers in interlocked molecules, so that it could be used as an ideal molecular station. …”
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    A Focus on Triazolium as a Multipurpose Molecular Station for pH-Sensitive Interlocked Crown-Ether-Based Molecular Machines
  9. 1489
    “…Here we compare the hormonal profiles and morphometrics from Gambel’s white-crowned sparrows (Zonotrichia leucophrys gambelii) breeding at the northern limit of the population’s range to those birds breeding within the historic population range. …”
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    Breeding on the leading edge of a northward range expansion: differences in morphology and the stress response in the arctic Gambel’s white-crowned sparrow
  10. 1490
    “…Y-TZP crowns were produced using computer-aided design and computer-aided manufacturing (CAD-CAM) technology. …”
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    The Retentive Strength of Cemented Zirconium Oxide Crowns after Dentin Pretreatment with Desensitizing Paste Containing 8% Arginine and Calcium Carbonate
  11. 1491
    “…We studied song characteristics of white-crowned sparrows (Zonotrichia leucophrys nuttalli) across a noise gradient that includes both anthropogenic and natural sources of noise in San Francisco and Marin counties, California, USA. …”
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    Patterns of Song across Natural and Anthropogenic Soundscapes Suggest That White-Crowned Sparrows Minimize Acoustic Masking and Maximize Signal Content
  12. 1492
    “…Another QTL for crown width (qtCW-2) was detected at 1.0 cM on LG13, with a logarithm of odds value of 3.15, and explained 31.7 % of the total variation of crown width. …”
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    Genetic linkage map construction and QTL mapping of seedling height, basal diameter and crown width of Taxodium ‘Zhongshanshan 302’ × T. mucronatum
  13. 1493
    “…OBJECTIVES: This study aimed to compare the shear bond strength (SBS) of composite to stainless steel crowns (SSC) using two mechanical surface treatments (MSTs) and two bonding systems. …”
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    Comparison of Shear Bond Strength of Composite to Stainless Steel Crowns Using Two Mechanical Surface Treatments and Two Bonding Systems
  14. 1494
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    Unilateral spontaneous ankylosis of the C1/C2 joint with “crowned dens syndrome”: Computed tomography scan is imperative in diagnosis
  15. 1495
    “…AIMS: To assess and compare the retentive strength of two dual-polymerized self-adhesive resin cements (RelyX U200, 3M ESPE & SmartCem2, Dentsply Caulk) and a resin-modified glass ionomer cement (RMGIC; RelyX Luting 2, 3M ESPE) on stainless steel crown (SSC). MATERIALS AND METHODS: Thirty extracted teeth were mounted on cold cured acrylic resin blocks exposing the crown till the cemento-enamel junction. …”
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    In vitro Evaluation of Stainless Steel Crowns cemented with Resin-modified Glass Ionomer and Two New Self-adhesive Resin Cements
  16. 1496
    “…White-crowned sparrows demonstrated significant phenotypic flexibility throughout the seasonal transition, including changes in prealternate moult status, lipid fuelling, body condition and flight muscle morphology. …”
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    Altered expression of pectoral myosin heavy chain isoforms corresponds to migration status in the white-crowned sparrow (Zonotrichia leucophrys gambelii)
  17. 1497
    “…OBJECTIVES: Fracture strength is an important factor influencing the clinical long-term success of implant-supported prostheses especially in high stress situations like excessive crown height space (CHS). The purpose of this study was to compare the fracture strength of implant-supported fixed partial dentures (FPDs) with excessive crown height, fabricated from three different materials. …”
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    Fracture Strength of Three-Unit Implant Supported Fixed Partial Dentures with Excessive Crown Height Fabricated from Different Materials
  18. 1498
    “…We report from there uniquely well-preserved fossils interpreted as probable crown-group rhodophytes (red algae). The filamentous form Rafatazmia chitrakootensis n. gen, n. sp. has uniserial rows of large cells and grows through diffusely distributed septation. …”
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    Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae
  19. 1499
    “…The relative increase in embryonic volume (EV) is much larger than that of the crown-rump length (CRL) over the same time period. …”
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    First-Trimester Crown-Rump Length and Embryonic Volume of Fetuses with Structural Congenital Abnormalities Measured in Virtual Reality: An Observational Study
  20. 1500
    “…Each of the 10 participants took part in the study tried three artificial crowns in different sequences according to a computer generated randomization list. …”
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    Occlusion and Disocclusion Time Changes in Single Unit Crowns Designed by Functional Generated Path Technique: A Randomised Clinical Trial
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