Nestor Cohenca, DDS

Nestor  Cohenca, DDS

Dentistry

On staff since June 2008

Children's Title: Director of Endodontics and Traumatology, The Center for Pediatric Dentistry, University of Washington School of Dentistry and Seattle Children's Hospital

Academic Title: Professor, Endodontics; Adjunct Professor, Pediatric Dentistry

  • Dr. Cohenca received his dental degree from the National University of Asuncion, Paraguay. In 1994, he completed the endodontic program at the Hebrew University in Jerusalem cum laude and received the Ino Sciaky Best Graduate Student Award. He then served 11 years on faculty at the school while maintaining a private practice limited to endodontics. He is a Diplomate of and was an examiner for the Israel Board of Endodontics and past-president of the Israel Endodontic Society. From 2003 to 2005 he served as a clinical assistant professor and coordinator of Trauma and Sports Dentistry at University of Southern California. Thereafter, Dr. Cohenca joined the University of Washington where he completed his endodontic certificate in 2008 and is currently a Professor of Endodontics and Adjunct Professor of Pediatric Dentistry. He serves as Director of Endodontics and Traumatology at the Center for Pediatric Dentistry and Seattle Childrens Hospital. In 2010, Dr. Cohenca became a Diplomate of the American Board of Endodontics and received an honorary membership to Omicron Kappa Upsilon National Dental Honor Society. As a full-time faculty member, he is active in research, teaching and lectures both national and internationally. He has published more than 60 peer-reviewed articles and serves as Associate Editor of the Dental Traumatology Journal and Board Director of the International Association of Dental Traumatology. Dr. Cohenca was one of the pioneers in the use of Cone Beam Computed Tomography in Endodontics and is considered one of the experts on this field. He is also an Adjunct Professor of Pediatric Dentistry with a strong background in Dental Traumatology and Endo-Pedo related topics. Dr Cohenca is fluent in Spanish, Portuguese and Hebrew. Dr. Cohenca maintains a private practice limited to Endodontics in Bellevue, WA.

    CURRICULUM VITAE

    PRESENT POSITION
    - Dental Surgeon (DDS) 1990
    - Specialist in Endodontics 1994, 2008
    - Diplomate, Israeli Board of Endodontics and Israel Ministry of Health (1995)
    - Diplomate, American Board of Endodontics (2010)
    - Tenured Professor. Department of Endodontics. School of Dentistry.
    University of Washington.
    - Adjunct Professor. Department of Pediatric Dentistry. School of Dentistry.
    University of Washington.
    - Director of Endodontics and Traumatology. The Center for Pediatric Dentistry.
    University of Washington School of Dentistry and Seattle Childrens Hospital.
    - Director of the Multidisciplinary Trauma Unit. School of Dentistry.
    University of Washington.
    - Associate Endodontist. Redmond Endodontics. Bellevue WA.


    PROFESSIONAL CERTIFICATIONS
    1986 - 1990 Dental Studies, National University of Asuncion, Paraguay. Licensed
    1991 Dental Licensed. Israel Dental Association and Israel Ministry of
    Health.
    1991 - 1994 Postgraduate Specialty Program in Endodontics, Department of Endodontics, HUHFDM, Jerusalem, Israel.
    1995 Diplomate, Israel Board of Endodontics and Israel Ministry of
    Health.
    2003- ProCPR Certified for Health Care Providers (CPR annual re-certification).
    2004 Problem Based Learning (PBL) Certified. USC School of Dentistry. CA.
    2004 HIPPA Compliance Certified. USC School of Dentistry. CA.
    2005 - Blood Born Pathogen training. Annual re-certification. UW School of Dentistry. WA.
    2007 National Board Certification (part 1 and 2). American Dental Association.
    2007 Summer Institute for Clinical Research. University of Washington. WA.
    2006 - 2008 Postgraduate Specialty Program in Endodontics, Department of Endodontics, School of Dentistry, University of Washington. Seattle, WA. USA.
    2008 HIPPA Compliance Certified. University of Washington, WA
    2008 Western Regional Examination Boards (WREB)
    2008 Dental License. WA State. USA
    2010 Diplomate, American Board of Endodontics
    2013 Certification in Oral Conscious Sedation and Nitrous Oxide


    HOSPITAL APPOINTMENTS AND PRIVILEDGES
    Hadassah Medical Center Attending 1994-2003
    UW Medical Center Attending 2005 present
    UW Childrens Attending 2008- present




    LANGUAGES
    1. Spanish
    2. English
    3. Hebrew
    4. Portuguese


    ACADEMIC ACTIVITIES
    1996 - 2000 Clinical Instructor in Endodontics, HUHFDM, Jerusalem, Israel.
    1996 - 2003 Co-Director of Graduate Endodontics, HUHFDM, Jerusalem, Israel.
    1998 - 2001 Director of the Preclinical Endodontic Course.
    2000 - 2005 Clinical Lecturer in Endodontics, HUHFDM, Jerusalem, Israel.
    2002 - 2003 Director of the Clinical Endodontic - Undergraduate Course
    2003 - 2005 Assistant Professor of Clinical Dentistry. Division of Surgical,
    Therapeutic & Bioengineering Sciences. School of Dentistry. University
    of Southern California.
    2003 - 2005 Coordinator of Trauma at the Center for Urgent Care, Trauma and Sport Dentistry at the USC School of Dentistry.


    ACADEMIC ACTIVITIES. UNIVERSITY OF WASHINGTON
    2005 - Pre-Clinical Endodontics (ENDO 630A). School of Dentistry.
    University of Washington.
    2005 - Pre-Clinical Endodontics (ENDO 630B). School of Dentistry.
    University of Washington.
    2005 - Clinical Endodontics (ENDO 660A). School of Dentistry.
    University of Washington.
    2007 - 2008 Co-Director of Undergraduate Clinical Endodontics (Endo 534). School of D

  • Award Name Award Description Awarded By Award Date
    Honorary Membership Honorary Membership to Omicron Kappa Upsilon National Dental Honor Society. Omicron Kappa Upsilon National Dental Honor Society 2011
    Gold Medal Award Gold Medal Award for Academic achievements and contributions to Endodontics. Sociedad Paraguaya de Endodoncia. Sociedad Paraguaya de Endodoncia 2008
    Dentsply Award for Best Clinical Table Dentsply Award for Clinical Table. 2006 Annual Meeting of the American Association of Endodontists (AAE). Honolulu, Hawaii, USA. American Association of Endodontists 2006
    Dentsply Award for Best Research Poster Dentsply Award for Research Poster. 2011 Annual Meeting of the American Association of Endodontists (AAE). American Association of Endodontists 2001
    Ino Sciaky Best Graduate Student Award Award given to the best gradaute resident among all specialties within the Medical Center Hebrew IUniversity and Hadassah Medical Center
  • Other Publications

    • Silva EJ, Nejaim Y, Silva AI, Haiter-Neto F, Zaia AA, Cohenca N
      Evaluation of Root Canal Configuration of Maxillary Molars in a Brazilian Population Using Cone-beam Computed Tomographic Imaging: An In Vivo Study.
      24461399 Journal of endodontics, 2014 Feb. : 40(2)173-6
    • McRay B, Cox TC, Cohenca N, Johnson JD, Paranjpe A
      A micro-computed tomography-based comparison of the canal transportation and centering ability of ProTaper Universal rotary and WaveOne reciprocating files.
      24389561 Quintessence international (Berlin, Germany : 1985), 2014 Feb. : 45(2)101-8
    • Cohenca N, Silva LA, Silva RA, Nelson-Filho P, Heilborn C, Watanabe E, Saraiva MC
      Microbiological evaluation of different irrigation protocols on root canal disinfection in teeth with apical periodontitis: an in vivo study.
      24474286 Brazilian dental journal, 2013 Sept. : 24(5)467-73
    • Silva EJ, Nejaim Y, Silva AV, Haiter-Neto F, Cohenca N
      Evaluation of root canal configuration of mandibular molars in a Brazilian population by using cone-beam computed tomography: an in vivo study.
      23791250 Journal of endodontics, 2013 July : 39(7)849-52
    • Ball RL, Barbizam JV, Cohenca N
      Intraoperative endodontic applications of cone-beam computed tomography.
      23522555 Journal of endodontics, 2013 April : 39(4)548-57
    • May JJ, Cohenca N, Peters OA
      Contemporary management of horizontal root fractures to the permanent dentition: diagnosis--radiologic assessment to include cone-beam computed tomography.
      23635979 Pediatric dentistry, 2013 March : 35(2)120-4
    • May JJ, Cohenca N, Peters OA
      Contemporary management of horizontal root fractures to the permanent dentition: diagnosis--radiologic assessment to include cone-beam computed tomography.
      23439041 Journal of endodontics, 2013 March : 39(3 Suppl)S20-5
    • Ha JH, Kim SK, Cohenca N, Kim HC
      Effect of R-phase heat treatment on torsional resistance and cyclic fatigue fracture.
      23402513 Journal of endodontics, 2013 March : 39(3)389-93
    • Cohenca N, Berg J
      Diagnosis and conservative treatment of dens invaginatus type III using cone beam computed tomography: two case reports.
      23635895 Pediatric dentistry, 2013 Jan. : 35(1)E33-7
    • de Gregorio C, Arias A, Navarrete N, Del Rio V, Oltra E, Cohenca N
      Effect of apical size and taper on volume of irrigant delivered at working length with apical negative pressure at different root curvatures.
      23228270 Journal of endodontics, 2013 Jan. : 39(1)119-24
    • Cohenca N, Paranjpe A, Berg J
      Vital pulp therapy.
      23174610 Dental clinics of North America, 2013 Jan. : 57(1)59-73
    • Duddy FA, Weissman J, Lee RA Sr, Paranjpe A, Johnson JD, Cohenca N
      Influence of different types of mouthguards on strength and performance of collegiate athletes: a controlled-randomized trial.
      22272945 Dental traumatology : official publication of International Association for Dental Traumatology, 2012 Aug. : 28(4)263-7
    • Kwan SC, Johnson JD, Cohenca N
      The effect of splint material and thickness on tooth mobility after extraction and replantation using a human cadaveric model.
      22107132 Dental traumatology : official publication of International Association for Dental Traumatology, 2012 Aug. : 28(4)277-81
    • Malmgren B, Andreasen JO, Flores MT, Robertson A, DiAngelis AJ, Andersson L, Cavalleri G, Cohenca N, Day P, Hicks ML, Malmgren O, Moule AJ, Onetto J, Tsukiboshi M, International Association of Dental Traumatology
      International Association of Dental Traumatology guidelines for the management of traumatic dental injuries: 3. Injuries in the primary dentition.
      22583659 Dental traumatology : official publication of International Association for Dental Traumatology, 2012 June : 28(3)174-82
    • Paranjpe A, de Gregorio C, Gonzalez AM, Gomez A, Silva Herzog D, Piña AA, Cohenca N
      Efficacy of the self-adjusting file system on cleaning and shaping oval canals: a microbiological and microscopic evaluation.
      22244642 Journal of endodontics, 2012 Feb. : 38(2)226-31
    • de Pablo OV, Estevez R, Heilborn C, Cohenca N
      Root anatomy and canal configuration of the permanent mandibular first molar: clinical implications and recommendations.
      22259805 Quintessence international (Berlin, Germany : 1985), 2012 Jan. : 43(1)15-27
    • Gatten DL, Riedy CA, Hong SK, Johnson JD, Cohenca N
      Quality of life of endodontically treated versus implant treated patients: a University-based qualitative research study.
      21689542 Journal of endodontics, 2011 July : 37(7)903-9
    • Wiseman A, Cox TC, Paranjpe A, Flake NM, Cohenca N, Johnson JD
      Efficacy of sonic and ultrasonic activation for removal of calcium hydroxide from mesial canals of mandibular molars: a microtomographic study.
      21238809 Journal of endodontics, 2011 Feb. : 37(2)235-8
    • de Pablo OV, Estevez R, Péix Sánchez M, Heilborn C, Cohenca N
      Root anatomy and canal configuration of the permanent mandibular first molar: a systematic review.
      21092807 Journal of endodontics, 2010 Dec. : 36(12)1919-31
    • Heilborn C, Reynolds K, Johnson JD, Cohenca N
      Cleaning efficacy of an apical negative-pressure irrigation system at different exposure times.
      20806100 Quintessence international (Berlin, Germany : 1985), 2010 Oct. : 41(9)759-67
    • de Gregorio C, Estevez R, Cisneros R, Paranjpe A, Cohenca N
      Efficacy of different irrigation and activation systems on the penetration of sodium hypochlorite into simulated lateral canals and up to working length: an in vitro study.
      20630302 Journal of endodontics, 2010 July : 36(7)1216-21
    • da Silva LA, Nelson-Filho P, da Silva RA, Flores DS, Heilborn C, Johnson JD, Cohenca N
      Revascularization and periapical repair after endodontic treatment using apical negative pressure irrigation versus conventional irrigation plus triantibiotic intracanal dressing in dogs' teeth with apical periodontitis.
      20416538 Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics, 2010 May : 109(5)779-87
    • Brunson M, Heilborn C, Johnson DJ, Cohenca N
      Effect of apical preparation size and preparation taper on irrigant volume delivered by using negative pressure irrigation system.
      20307751 Journal of endodontics, 2010 April : 36(4)721-4
    • Cohenca N, Heilborn C, Johnson JD, Flores DS, Ito IY, da Silva LA
      Apical negative pressure irrigation versus conventional irrigation plus triantibiotic intracanal dressing on root canal disinfection in dog teeth.
      20123368 Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics, 2010 Jan. : 109(1)e42-6
    • Silberman A, Heilborn C, Cohenca N
      Endodontic therapy of a mandibular third molar with 5 canals: a case report.
      19587885 Quintessence international (Berlin, Germany : 1985), 2009 June : 40(6)453-5
    • de Gregorio C, Estevez R, Cisneros R, Heilborn C, Cohenca N
      Effect of EDTA, sonic, and ultrasonic activation on the penetration of sodium hypochlorite into simulated lateral canals: an in vitro study.
      19482193 Journal of endodontics, 2009 June : 35(6)891-5
    • Guzmán-Martínez N, Silva-Herzog FD, Méndez GV, Martín-Pérez S, Cerda-Cristerna BI, Cohenca N
      The effect of Emdogain and 24% EDTA root conditioning on periodontal healing of replanted dog's teeth.
      19208009 Dental traumatology : official publication of International Association for Dental Traumatology, 2009 Feb. : 25(1)43-50
    • Hockett JL, Dommisch JK, Johnson JD, Cohenca N
      Antimicrobial efficacy of two irrigation techniques in tapered and nontapered canal preparations: an in vitro study.
      18928850 Journal of endodontics, 2008 Nov. : 34(11)1374-7
    • Cohenca N, Roges RA, Roges R
      The incidence and severity of dental trauma in intercollegiate athletes.
      17670881 Journal of the American Dental Association (1939), 2007 Aug. : 138(8)1121-6
    • Cohenca N, Simon JH, Roges R, Morag Y, Malfaz JM
      Clinical indications for digital imaging in dento-alveolar trauma. Part 1: traumatic injuries.
      17367457 Dental traumatology : official publication of International Association for Dental Traumatology, 2007 April : 23(2)95-104
    • Cohenca N, Simon JH, Mathur A, Malfaz JM
      Clinical indications for digital imaging in dento-alveolar trauma. Part 2: root resorption.
      17367458 Dental traumatology : official publication of International Association for Dental Traumatology, 2007 April : 23(2)105-13
    • Cohenca N, Stabholz A
      Decoronation - a conservative method to treat ankylosed teeth for preservation of alveolar ridge prior to permanent prosthetic reconstruction: literature review and case presentation.
      17367456 Dental traumatology : official publication of International Association for Dental Traumatology, 2007 April : 23(2)87-94
    • Patel R, Cohenca N
      Maturogenesis of a cariously exposed immature permanent tooth using MTA for direct pulp capping: a case report.
      17073926 Dental traumatology : official publication of International Association for Dental Traumatology, 2006 Dec. : 22(6)328-33
    • Cohenca N, Forrest JL, Rotstein I
      Knowledge of oral health professionals of treatment of avulsed teeth.
      17073920 Dental traumatology : official publication of International Association for Dental Traumatology, 2006 Dec. : 22(6)296-301
    • Holan G, Cohenca N, Brin I, Sgan-Cohen H
      An oral health promotion program for the prevention of complications following avulsion: the effect on knowledge of physical education teachers.
      17073925 Dental traumatology : official publication of International Association for Dental Traumatology, 2006 Dec. : 22(6)323-7
    • Silberman A, Cohenca N, Simon JH
      Anatomical redesign for the treatment of dens invaginatus type III with open apexes: a literature review and case presentation.
      16521383 Journal of the American Dental Association (1939), 2006 Feb. : 137(2)180-5
    • Ram D, Cohenca N
      Therapeutic protocols for avulsed permanent teeth: review and clinical update.
      15185807 Pediatric dentistry, 2004 May : 26(3)251-5
    • Cohenca N, Karni S, Rotstein I
      Extraoral sinus tract misdiagnosed as an endodontic lesion.
      14686820 Journal of endodontics, 2003 Dec. : 29(12)841-3
    • Cohenca N, Karni S, Rotstein I
      Transient apical breakdown following tooth luxation.
      14708655 Dental traumatology : official publication of International Association for Dental Traumatology, 2003 Oct. : 19(5)289-91

Overview

Board Certification(s)

Dentistry, Endodontics