Loma Linda University

Enrollment Information
Call us at: 909-558-1000

Faculty Directory
Robert Handysides, DDS
Associate Dean, Academic Affairs, School of Dentistry
School of Dentistry
Associate Professor, Endodontics
School of Dentistry
Publications    Scholarly Journals--Published

  • Torabinejad M., Dinsbach N., Turman M., Handysides R.A., Bahjri K., White S., Survival of Intentionally Replanted Teeth and Implant-supported Single Crowns: A Systematic Review. J Endod, 2015 Jul;41(7): 992-998 ( 7/2015 )
  • Torabinejad M, Corr R, Handysides R, & Shabahang S. (2009). Outcomes of Nonsurgical Retreatment and Endodontic Surgery: A Systematic Review. Journal of Endodontics, 35(7), 930-937. ( 7/2009 ) Link...
    Introduction: The purpose of this systematic review was to compare the clinical and radiographic outcomes of nonsurgical retreatment with those of endodontic surgery to determine which modality offers more favorable outcomes. Methods: The study began with targeted electronic searches of MEDLINE, PubMed, and Cochrane databases, followed with exhaustive hand searching and citation mining for all articles reporting clinical and/or radiographic outcomes for at least a mean follow-up of 2 years for these procedures. Pooled and weighted success rates were determined from a meta-analysis of the data abstracted from the articles. Results: A significantly higher success rate was found for endodontic surgery at 2-4 years (77.8%) compared with nonsurgical retreatment for the same follow-up period (70.9%; P <.05). At 4-6 years, however, this relationship was reversed, with nonsurgical retreatment showing a higher success rate of 83.0% compared with 71.8% for endodontic surgery (P <.05). Insufficient numbers of articles were available to make comparisons after 6 years of follow-up period. Endodontic surgery studies showed a statistically significant decrease in success with each increasing follow-up interval (P <.05). The weighted success for 2-4 years was 77.8%, which declined at 4-6 years to 71.8% and further declined at 6+ years to 62.9% (P <.05). Conversely, the nonsurgical retreatment success rates demonstrated a statistically significant increase in weighted success from 2-4 years (70.9%) to 4-6 years (83.0%; P <.05). Conclusions: On the basis of these results it appears that endodontic surgery offers more favorable initial success, but nonsurgical retreatment offers a more favorable long-term outcome. (J Endod 2009;35:930-937)
  • Ordinola-Zapata R, Bramante C M, Aprecio R M, Handysides R, & Jaramillo D E. (2014). Biofilm removal by 6% sodium hypochlorite activated by different irrigation techniques. Int Endod J, 47(7), 659-666. ( 7/2014 - Present ) Link...
    Aim To compare the removal of biofilm utilizing four irrigation techniques on a bovine root canal model. Methodology Fifty dentine specimens (2 x 2 mm) were infected with biofilm. The samples were then adapted to previously created cavities in the bovine model. The root canals were irrigated twice with 2 mL of 6% sodium hypochlorite for 2 min (4 min total). Following initial irrigation, the different treatment modalities were introduced for 60 s (3 x 20 s intervals). The evaluated techniques were needle irrigation, Endoactivator (Dentsply Tulsa Dental, Tulsa, OK, USA), passive ultrasonic irrigation and laser-activated irrigation (photon-induced photoacoustic streaming). The controls were irrigated with distilled water and conventional needle irrigation. Subsequently, the dentine samples were separated from the model and analysed using a scanning electron microscope (SEM). Fifteen operative fields were scanned per block, and SEM pictures were captured. Two calibrated evaluators examined the images and collected data using a four-degree scale. Nonparametric tests were used to evaluate for statistical significance amongst the groups. Results The group undergoing laser-activated irrigation using photon-induced photoacoustic streaming exhibited the most favourable results in the removal of biofilm. Passive ultrasonic irrigation scores were significantly lower than both the Endoactivator and needle irrigation scores. Sonic and needle irrigation were not significantly different. The least favourable results were found in the control group. Conclusions Laser activation of 6% sodium hypochlorite significantly improved the cleaning of biofilm-infected dentine followed by passive ultrasonic irrigation.
  • Brodie A J, Crow H C, Eber R M, Handysides R, Holexa R, Kiat-amnuay S, & Spallek H. (2011). Evaluating Postdoctoral Dental Candidates: Assessing the Need and Recommendations for a National Qualifying Examination. Journal of Dental Education, 75(6), 719-725. ( 6/2011 - Present )
    Increasingly, U.S. dental schools report pass/fail grades and do not rank students. In addition, the Joint Commission on National Dental Examinations will report National Board Dental Examination (NBDE) scores as pass/fail after January 1, 2012. This article discusses how these changes will force postdoctoral dental program directors to modify how they assess candidates and how noncognitive evaluations might enhance those assessments. The authors propose developing a national qualifying examination for postdoctoral dental programs that will measure knowledge, decision making, and noncognitive traits including empathy, self-confidence, integrity, and emotional intelligence. Without NBDE scores, class rank, and GPA as a basis for decision making, a single national qualifying examination would assist postdoctoral programs in selecting high-quality candidates based on knowledge, critical thinking skills, and noncognitive traits.
  Books and Chapters
  • Handysides R, Jaramillo D, Ingle J. Chapter 14, Endodontic Examination. Ingle and Bakland, 6th Ed., 2008 ( 7/2007 )
  Non-Scholarly Journals
  • Advance in clinical endodontic instruments:  The ever evolving endodontic instruments.  LLU Dentistry Journal, pg 24-27. ( 6/2010 - 7/2011 )
  • R. Handysides"Root Canals: Facts and Fiction." San Bernardino Sun 01 01 2007: ( 1/2007 )