Page last updated: 2024-10-21

urea and Smear Layer

urea has been researched along with Smear Layer in 12 studies

pseudourea: clinical use; structure
isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives.

Smear Layer: Adherent debris produced when cutting the enamel or dentin in cavity preparation. It is about 1 micron thick and its composition reflects the underlying dentin, although different quantities and qualities of smear layer can be produced by the various instrumentation techniques. Its function is presumed to be protective, as it lowers dentin permeability. However, it masks the underlying dentin and interferes with attempts to bond dental material to the dentin.

Research Excerpts

ExcerptRelevanceReference
"To test an aqueous gel containing 1-hydroxyethylidene-1, 1-bisphosphonate (HEBP) regarding its interactions with sodium hypochlorite, its calcium binding capacity, and its potential in preventing the formation of a smear layer when used in conjunction with rotary root canal preparation."3.73Assessment of a gel-type chelating preparation containing 1-hydroxyethylidene-1, 1-bisphosphonate. ( Badertscher, M; Girard, S; Paqué, F; Sener, B; Zehnder, M, 2005)

Research

Studies (12)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's9 (75.00)29.6817
2010's3 (25.00)24.3611
2020's0 (0.00)2.80

Authors

AuthorsStudies
Kim, HJ1
Park, SJ1
Park, SH1
Hwang, YC1
Yu, MK1
Min, KS1
Adebayo, OA1
Burrow, MF1
Tyas, MJ1
Cavalli, V1
Shinohara, MS1
Ambrose, W1
Malafaia, FM1
Pereira, PN1
Giannini, M1
Tunga, U1
Parlak, E1
Bodrumlu, E1
Aydemir, H1
Yeşilsoy, C1
Pinheiro, SL1
Araujo, G1
Bincelli, I1
Cunha, R1
Bueno, C1
Hülsmann, M3
Heckendorff, M1
Schäfers, F3
Gressmann, G1
Herbst, U1
Girard, S1
Paqué, F1
Badertscher, M1
Sener, B1
Zehnder, M1
Dogan Buzoglu, H1
Calt, S1
Gümüsderelioglu, M1
Fu, B1
Hoth-Hannig, W1
Hannig, M1
Moss, HD1
Allemang, JD1
Johnson, JD1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Evaluation of Mechanized Instrumentation for Endodontic Treatment of Primary Teeth - Randomized Clinical Trial[NCT03453658]151 participants (Actual)Interventional2017-11-08Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trials

3 trials available for urea and Smear Layer

ArticleYear
Effect of F-File on removal of the smear layer: a scanning electron microscope study.
    Australian endodontic journal : the journal of the Australian Society of Endodontology Inc, 2011, Volume: 37, Issue:2

    Topics: Citric Acid; Dental Pulp Cavity; Dentin; Diamond; Doxycycline; Edetic Acid; Equipment Design; Humans

2011
Evaluation of cleaning capacity and instrumentation time of manual, hybrid and rotary instrumentation techniques in primary molars.
    International endodontic journal, 2012, Volume: 45, Issue:4

    Topics: Bacterial Load; Carbamide Peroxide; Dental Alloys; Dental Pulp Cavity; Dentin; Enterococcus faecalis

2012
Effects of dental bleaching on micro- and nano-morphological alterations of the enamel surface.
    American journal of dentistry, 2007, Volume: 20, Issue:1

    Topics: Carbamide Peroxide; Dental Enamel; Drug Combinations; Humans; Humidity; Hydrogen Peroxide; Microscop

2007

Other Studies

9 other studies available for urea and Smear Layer

ArticleYear
Efficacy of flowable gel-type EDTA at removing the smear layer and inorganic debris under manual dynamic activation.
    Journal of endodontics, 2013, Volume: 39, Issue:7

    Topics: Acrylic Resins; Carbamide Peroxide; Dental Pulp Cavity; Dentin; Edetic Acid; Gels; Humans; Materials

2013
An SEM evaluation of conditioned and bonded enamel following carbamide peroxide bleaching and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) treatment.
    Journal of dentistry, 2009, Volume: 37, Issue:4

    Topics: Acid Etching, Dental; Calcium Phosphates; Carbamide Peroxide; Caseins; Dental Bonding; Dental Enamel

2009
Influence of intracoronal bleaching agents on the ultimate strength and ultrastructure morphology of dentine.
    International endodontic journal, 2009, Volume: 42, Issue:7

    Topics: Acid Etching, Dental; Animals; Apatites; Borates; Carbamide Peroxide; Cattle; Collagen; Dental Pulp

2009
Comparative in-vitro evaluation of three chelator pastes.
    International endodontic journal, 2002, Volume: 35, Issue:8

    Topics: Carbamide Peroxide; Chelating Agents; Chi-Square Distribution; Dental Pulp Cavity; Dentin; Drug Comb

2002
A comparative study of root canal preparation using FlexMaster and HERO 642 rotary Ni-Ti instruments.
    International endodontic journal, 2003, Volume: 36, Issue:5

    Topics: Chelating Agents; Dental Alloys; Dental Pulp Cavity; Dentin; Disinfectants; Edetic Acid; Equipment D

2003
Comparative study of root-canal preparation using Lightspeed and Quantec SC rotary NiTi instruments.
    International endodontic journal, 2003, Volume: 36, Issue:11

    Topics: Chelating Agents; Dental Alloys; Dental High-Speed Equipment; Dental Pulp Cavity; Disinfectants; Ede

2003
Assessment of a gel-type chelating preparation containing 1-hydroxyethylidene-1, 1-bisphosphonate.
    International endodontic journal, 2005, Volume: 38, Issue:11

    Topics: Calcium; Chelating Agents; Dental Pulp Cavity; Edetic Acid; Etidronic Acid; Gels; Humans; Materials

2005
Evaluation of the surface free energy on root canal dentine walls treated with chelating agents and NaOCl.
    International endodontic journal, 2007, Volume: 40, Issue:1

    Topics: Bicuspid; Chelating Agents; Dental Pulp Cavity; Dentin; Edetic Acid; Humans; Peroxides; Root Canal I

2007
Philosophies and practices regarding the management of the endodontic smear layer: results from two surveys.
    Journal of endodontics, 2001, Volume: 27, Issue:8

    Topics: Data Collection; Edetic Acid; Education, Dental; Endodontics; Humans; Peroxides; Practice Patterns,

2001