Y L Ng

Summary

Affiliation: University College London
Country: UK

Publications

  1. ncbi request reprint Outcome of primary root canal treatment: systematic review of the literature -- Part 2. Influence of clinical factors
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:6-31. 2008
  2. doi request reprint A prospective study of the factors affecting outcomes of non-surgical root canal treatment: part 2: tooth survival
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:610-25. 2011
  3. doi request reprint A prospective study of the factors affecting outcomes of nonsurgical root canal treatment: part 1: periapical health
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:583-609. 2011
  4. ncbi request reprint Outcome of primary root canal treatment: systematic review of the literature - part 1. Effects of study characteristics on probability of success
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 40:921-39. 2007
  5. doi request reprint Outcome of secondary root canal treatment: a systematic review of the literature
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:1026-46. 2008
  6. doi request reprint Tooth survival following non-surgical root canal treatment: a systematic review of the literature
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London
    Int Endod J 43:171-89. 2010
  7. ncbi request reprint Root and canal morphology of Thai maxillary molars
    A M Alavi
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 35:478-85. 2002
  8. ncbi request reprint Prevalence of yeasts in saliva and root canals of teeth associated with apical periodontitis
    M W Egan
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 35:321-9. 2002
  9. ncbi request reprint Prevalence of and factors affecting postpreparation pain in patients undergoing two-visit root canal treatment
    J P Glennon
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:29-37. 2004
  10. doi request reprint The effect of irrigation time, root morphology and dentine thickness on tooth surface strain when using 5% sodium hypochlorite and 17% EDTA
    O E Sobhani
    Unit of Endodontology, Divisions of Restorative Dental Sciences, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 43:190-9. 2010

Collaborators

  • K Gulabivala
  • D A Spratt
  • D Ready
  • D R Moles
  • J C Knowles
  • J Pratten
  • J D Lewsey
  • G C Bailey
  • L L Wei
  • A Kapalas
  • D J Setchell
  • S M Ardeshna
  • R Rajasingham
  • T Alsunaien
  • R Philpott
  • O E Sobhani
  • M Flanagan
  • N Richardson
  • S McGill
  • A Al-Bulushi
  • T Y Huang
  • S P van Zyl
  • N Polycarpou
  • R S Hems
  • N Mordan
  • J P Glennon
  • V Adib
  • S A Cunnington
  • G J Seal
  • A M Alavi
  • M W Egan
  • D Grigoratos
  • S Frais
  • S Matharu
  • K Gellynck
  • P Buxton
  • J A P Figueiredo
  • N J Mordan
  • M Levinkind
  • D Canavan
  • P Barber
  • A Opasanon
  • M Bhatti
  • J M Lam
  • M Wilson

Detail Information

Publications37

  1. ncbi request reprint Outcome of primary root canal treatment: systematic review of the literature -- Part 2. Influence of clinical factors
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:6-31. 2008
    ..i) To carry out meta-analyses to quantify the influence of the clinical factors on the efficacy of primary root canal treatment and (ii) to identify the best treatment protocol based on the current evidence...
  2. doi request reprint A prospective study of the factors affecting outcomes of non-surgical root canal treatment: part 2: tooth survival
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:610-25. 2011
    ..To investigate the probability of and factors influencing tooth survival following primary (1°RCTx) or secondary (2°RCTx) root canal treatment...
  3. doi request reprint A prospective study of the factors affecting outcomes of nonsurgical root canal treatment: part 1: periapical health
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:583-609. 2011
    ..To investigate the probability of and factors influencing periapical status of teeth following primary (1°RCTx) or secondary (2°RCTx) root canal treatment...
  4. ncbi request reprint Outcome of primary root canal treatment: systematic review of the literature - part 1. Effects of study characteristics on probability of success
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 40:921-39. 2007
    ....
  5. doi request reprint Outcome of secondary root canal treatment: a systematic review of the literature
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:1026-46. 2008
    ....
  6. doi request reprint Tooth survival following non-surgical root canal treatment: a systematic review of the literature
    Y L Ng
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London
    Int Endod J 43:171-89. 2010
    ..To investigate (i) the effect of study characteristics on reported tooth survival after root canal treatment (RCTx) and (ii) the effect of clinical factors on the proportion of root filled teeth surviving after RCTx...
  7. ncbi request reprint Root and canal morphology of Thai maxillary molars
    A M Alavi
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 35:478-85. 2002
    ..To investigate the root and canal morphology of 268 maxillary permanent molars collected from an indigenous Thai population...
  8. ncbi request reprint Prevalence of yeasts in saliva and root canals of teeth associated with apical periodontitis
    M W Egan
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 35:321-9. 2002
    ..To determine: (i) the relative prevalence and diversity of yeasts in salivary and root canal samples from the same patients; and (ii) the clinical factors associated with their presence in saliva and root canals...
  9. ncbi request reprint Prevalence of and factors affecting postpreparation pain in patients undergoing two-visit root canal treatment
    J P Glennon
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:29-37. 2004
    ..This longitudinal, prospective study (i) investigated the prevalence of postpreparation pain during root canal treatment and (ii) evaluated the influence of factors affecting the pain experience...
  10. doi request reprint The effect of irrigation time, root morphology and dentine thickness on tooth surface strain when using 5% sodium hypochlorite and 17% EDTA
    O E Sobhani
    Unit of Endodontology, Divisions of Restorative Dental Sciences, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 43:190-9. 2010
    ....
  11. doi request reprint Effect of canal preparation and residual root filling material on root impedance
    A Al-Bulushi
    UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:892-904. 2008
    ..To investigate the effect of root canal preparation and residual root filling material on the impedance characteristics of extracted human roots...
  12. ncbi request reprint Root and canal morphology of Burmese mandibular molars
    K Gulabivala
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, UK
    Int Endod J 34:359-70. 2001
    ..To study the root canal morphology of Burmese mandibular molars using a canal staining and tooth clearing technique...
  13. ncbi request reprint Ultrasonic condensation of gutta-percha: the effect of power setting and activation time on temperature rise at the root surface - an in vitro study
    G C Bailey
    Unit of Endodontics, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:447-54. 2004
    ..To determine the effect of power setting and duration of activation on the temperature rise at the root surface during root canal obturation by ultrasonic condensation of gutta-percha...
  14. ncbi request reprint An in vitro evaluation of the ability of ozone to kill a strain of Enterococcus faecalis
    R S Hems
    Unit of Endodontology, Eastman Dental Institute for Oral Health Care Sciences, University College London, London WC1X 8LD, UK
    Int Endod J 38:22-9. 2005
    ..To evaluate the potential of ozone as an antibacterial agent using Enterococcus faecalis as the test species...
  15. doi request reprint The effect of sodium hypochlorite and ethylenediaminetetraacetic acid irrigation, individually and in alternation, on tooth surface strain
    R Rajasingham
    University College London, UK
    Int Endod J 43:31-40. 2010
    ..To evaluate the effect of irrigation regimens on tooth surface strain using saline, sodium hypochlorite (3% and 5% NaOCl) and ethylenediaminetetraacetic acid (17% EDTA), individually and in alternating combinations...
  16. doi request reprint An investigation of a potential confounder in ex vivo microbiological studies--the bulk flow of fluid through apical foramina during tooth extraction
    A Kapalas
    Department of Restorative Dentistry, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:534-42. 2011
    ..To investigate the factors affecting bulk flow of dye and bacterial suspensions into and out of apical foramina during simulated tooth extraction, using an ex vivo model...
  17. doi request reprint The efficacy of dynamic irrigation using a commercially available system (RinsEndo) determined by removal of a collagen 'bio-molecular film' from an ex vivo model
    S McGill
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 41:602-8. 2008
    ..To compare the efficacy of three irrigation protocols using an established ex vivo bio-molecular film model...
  18. ncbi request reprint A bio-molecular film ex-vivo model to evaluate the influence of canal dimensions and irrigation variables on the efficacy of irrigation
    T Y Huang
    Unit of Endodontology, UCL Eastman Dental Institute, London, UK
    Int Endod J 41:60-71. 2008
    ..To devise an ex vivo model to test the efficacy of irrigation (static/dynamic) in removing a bio-molecular film from root canal walls...
  19. ncbi request reprint Effect of customization of master gutta-percha cone on apical control of root filling using different techniques: an ex vivo study
    S P van Zyl
    Unit of Endodontology, Eastman Dental Institute, University College London, London, UK
    Int Endod J 38:658-66. 2005
    ....
  20. ncbi request reprint Effectiveness of electrochemically activated water as an irrigant in an infected tooth model
    K Gulabivala
    Unit of Endodontology, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:624-31. 2004
    ..To test the effectiveness of electrochemically activated aqueous solutions in the debridement of Enterococcus faecalis biofilms in root canals of extracted teeth...
  21. doi request reprint An ex vivo investigation of the relationship between apical root impedance and canal anatomy
    S M Ardeshna
    Unit of Endodontology, Department of Restorative Dentistry, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:525-33. 2011
    ..To investigate a possible relationship between apical root impedance and canal anatomy...
  22. doi request reprint Microflora in teeth associated with apical periodontitis: a methodological observational study comparing two protocols and three microscopy techniques
    N Richardson
    Unit of Endodontology, Division of Restorative Dental Science, UCL Eastman Dental Institute, University College London, London WC1X 8LD, UK
    Int Endod J 42:908-21. 2009
    ....
  23. ncbi request reprint Prevalence of persistent pain after endodontic treatment and factors affecting its occurrence in cases with complete radiographic healing
    N Polycarpou
    Unit of Endodontology, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 38:169-78. 2005
    ....
  24. ncbi request reprint Prevalence of and factors affecting post-obturation pain in patients undergoing root canal treatment
    Y L Ng
    Department of Endodontology, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:381-91. 2004
    ..This longitudinal, prospective study (1) investigated the prevalence of post-obturation pain after root canal treatment and (2) evaluated the influence of factors affecting the pain experience...
  25. ncbi request reprint An in vitro comparison of the bactericidal efficacy of lethal photosensitization or sodium hyphochlorite irrigation on Streptococcus intermedius biofilms in root canals
    G J Seal
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, UK
    Int Endod J 35:268-74. 2002
    ....
  26. ncbi request reprint Root and canal morphology of Burmese maxillary molars
    Y L Ng
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Healthcare Sciences, University College London, UK
    Int Endod J 34:620-30. 2001
    ..The palatal and disto-buccal canals mainly had type I canals. Lateral canals were equally prevalent in all tooth types but were most common in the apical third...
  27. ncbi request reprint Cultivable microbial flora associated with persistent periapical disease and coronal leakage after root canal treatment: a preliminary study
    V Adib
    Unit of Endodontology, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:542-51. 2004
    ..To identify the cultivable bacterial flora in root filled teeth with persistent periapical lesions and to locate their distribution within the root canal system using an in vitro sampling protocol...
  28. ncbi request reprint Effect of exposing dentine to sodium hypochlorite and calcium hydroxide on its flexural strength and elastic modulus
    D Grigoratos
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, 256 Grays Inn Road, London WC1 8LD, England, UK
    Int Endod J 34:113-9. 2001
    ..Saturated Ca(OH)2 reduced the flexural strength of dentine but not the modulus of elasticity. Sequential use of NaOCl and Ca(OH)2 has no additional weakening effect...
  29. ncbi request reprint Root canal obturation by ultrasonic condensation of gutta-percha. Part II: an in vitro investigation of the quality of obturation
    G C Bailey
    Endodontology Unit, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, UK
    Int Endod J 37:694-8. 2004
    ..To compare the quality of root canal obturation using ultrasonic or cold condensation of gutta-percha and to determine the effect of power setting and activation time on the quality of obturation using the former technique...
  30. doi request reprint The fluid mechanics of root canal irrigation
    K Gulabivala
    UCL Eastman Dental Institute, University College London, 256 Grays Inn Road, London, UK
    Physiol Meas 31:R49-84. 2010
    ..This review highlights a way forward by understanding the physical processes involved through physical models, mathematical modelling and numerical computations...
  31. ncbi request reprint A new in vitro model for the study of microbial microleakage around dental restorations: a preliminary qualitative evaluation
    S Matharu
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, UK
    Int Endod J 34:547-53. 2001
    ..CONCLUSION: This preliminary investigation showed that the CDFF may be a valuable tool for the in vitro study of the dynamics of microbial microleakage around dental restorations...
  32. ncbi request reprint The probability of and factors influencing tooth survival following non-surgical root canal treatment - a prospective study
    Y L Ng
    UCL Eastman Dental Institute, UCL, London, UK
    Int Endod J 43:352. 2010
    ..0; P = 0.003). Conclusions The 4-year tooth survival following primary or secondary root canal treatment was 95%; with fourteen prognostic factors common to both...
  33. ncbi request reprint Effect of transport and storage conditions on recovery of root canal isolates
    T Alsunaien
    Division of Restorative Dental Sciences Unit of Endodontology, UCL Eastman Dental Institute, London, UK
    Int Endod J 43:353. 2010
    ....
  34. ncbi request reprint Some factors affecting the concentration of available chlorine in commercial sources of sodium hypochlorite
    S Frais
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, London, England, UK
    Int Endod J 34:206-15. 2001
    ..Heating solutions of NaOCl may cause unpredictable changes to the concentration, depending upon conditions...
  35. doi request reprint The influence of a bisphosphonate on bone generation determined using a chick-femur model
    L L Wei
    Unit of Endodontology, UCL Eastman Dental Institute, University College London, London, UK
    Int Endod J 44:550-9. 2011
    ..To determine the direct influence of a bisphosphonate (pamidronate) delivered by one of two carriers, on bone generation in chick-femurs supported by chick egg chorio-allantoic membranes...
  36. ncbi request reprint Root and canal morphology of Thai mandibular molars
    K Gulabivala
    Department of Conservative Dentistry, Eastman Dental Institute for Oral Health Care Sciences, University College London, UK
    Int Endod J 35:56-62. 2002
    ..To investigate the root and canal morphology of 351 mandibular permanent molars collected from an indigenous Thai population...
  37. ncbi request reprint The influence of pain catastrophising on the experience of persistent pain/discomfort following non-surgical root canal treatment
    R Philpott
    Unit of Endodontology, UCL Eastman Dental Institute, UCL, London, UK
    Int Endod J 43:351-2. 2010
    ..Further monitoring of the clinical course of prevalent pain/discomfort associated with periapical healing should inform future decision-making on further management...