All Stories

  1. Differences in root canal system configuration in human permanent teeth within different age groups

    Article • International Endodontic Journal, February 2018, Wiley

    Dr Ronald Ordinola Zapata

  2. Micro–computed Tomographic Analysis of Mandibular Second Molars with C-shaped Root Canals

    Article • Journal of Endodontics, June 2015, Elsevier

    Dr Ronald Ordinola Zapata

  3. The effect of radiopacifiers agents on pH, calcium release, radiopacity, and antimicrobial properties of different calcium hydroxide dressings

    Article • Microscopy Research and Technique, May 2015, Wiley

    Dr Ronald Ordinola Zapata

  4. Micro–computed Tomographic Analysis of the Root Canal Morphology of the Distal Root of Mandibular First Molar

    Article • Journal of Endodontics, February 2015, Elsevier

    Dr Ronald Ordinola Zapata

  5. Rat subcutaneous tissue response to calcium silicate containing different arsenic concentrations

    Article • Journal of Applied Oral Science, February 2015, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  6. Shaping ability of Reciproc and TF Adaptive systems in severely curved canals of rapid microCT-based prototyping molar replicas

    Article • Journal of Applied Oral Science, December 2014, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  7. Antimicrobial Activity of a Sodium Hypochlorite/Etidronic Acid Irrigant Solution

    Article • Journal of Endodontics, December 2014, Elsevier

    Dr Ronald Ordinola Zapata

  8. The Effect of Larger Apical Preparations in the Danger Zone of Lower Molars Prepared Using the Mtwo and Reciproc Systems

    Article • Journal of Endodontics, November 2014, Elsevier

    Dr Ronald Ordinola Zapata

  9. Microscopic analysis of the quality of obturation and physical properties of MTAFillapex

    Article • Microscopy Research and Technique, September 2014, Wiley

    Dr Ronald Ordinola Zapata

  10. Efficacy of Reciprocating Instruments for Removing Filling Material in Curved Canals Obturated with a Single-cone Technique: A Micro–computed Tomographic Analysis

    Article • Journal of Endodontics, July 2014, Elsevier

    Dr Ronald Ordinola Zapata

  11. Influence of bismuth oxide concentration on the pH level and biocompatibility of white Portland cement

    Article • Journal of Applied Oral Science, July 2014, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  12. Detection of Various Anatomic Patterns of Root Canals in Mandibular Incisors Using Digital Periapical Radiography, 3 Cone-beam Computed Tomographic Scanners, and Micro–Computed Tomographic Imaging

    Article • Journal of Endodontics, January 2014, Elsevier

    Dr Ronald Ordinola Zapata

  13. Influence of the Method in Root Canal Filling Using Active Lateral Compaction Techniques

    Article • Brazilian Dental Journal, January 2014, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  14. Micro–Computed Tomography Analysis of the Root Canal Anatomy and Prevalence of Oval Canals in Mandibular Incisors

    Article • Journal of Endodontics, December 2013, Elsevier

    Dr Ronald Ordinola Zapata

  15. Morphologic Micro–Computed Tomography Analysis of Mandibular Premolars with Three Root Canals

    Article • Journal of Endodontics, September 2013, Elsevier

    Dr Ronald Ordinola Zapata

  16. In Vitro Alkaline pH Resistance of Enterococcus faecalis

    Article • Brazilian Dental Journal, September 2013, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  17. Analysis of the color alteration and radiopacity promoted by bismuth oxide in calcium silicate cement

    Article • Brazilian Oral Research, July 2013, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  18. Comparative Analysis of Enterococcus faecalis Biofilm Formation on Different Substrates

    Article • Journal of Endodontics, March 2013, Elsevier

    Dr Ronald Ordinola Zapata

  19. Biocompatibility and setting time of CPM-MTA and white Portland cement clinker with or without calcium sulfate

    Article • Journal of Applied Oral Science, January 2013, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  20. Antimicrobial Activity of Triantibiotic Paste, 2% Chlorhexidine Gel, and Calcium Hydroxide on an Intraoral-infected Dentin Biofilm Model

    Article • Journal of Endodontics, January 2013, Elsevier

    Dr Ronald Ordinola Zapata

  21. Effect of Ultrasonic Activation on pH and Calcium Released by Calcium Hydroxide Pastes in Simulated External Root Resorption

    Article • Journal of Endodontics, June 2012, Elsevier

    Dr Ronald Ordinola Zapata

  22. The antimicrobial effect of new and conventional endodontic irrigants on intra-orally infected dentin

    Article • Acta Odontologica Scandinavica, May 2012, Taylor & Francis

    Dr Ronald Ordinola Zapata

  23. Effect of Different Radiopacifying Agents on the Physicochemical Properties of White Portland Cement and White Mineral Trioxide Aggregate

    Article • Journal of Endodontics, March 2012, Elsevier

    Dr Ronald Ordinola Zapata

  24. Comparative study of cone beam computed tomography and intraoral periapical radiographs in diagnosis of lingual-simulated external root resorptions

    Article • Dental Traumatology, January 2012, Wiley

    Dr Ronald Ordinola Zapata

  25. Interfacial adaptation of an epoxy-resin sealer and a self-etch sealer to root canal dentin using the System B or the single cone technique

    Article • Brazilian Dental Journal, January 2012, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  26. Micro–Computed Tomography Study of the Internal Anatomy of Mesial Root Canals of Mandibular Molars

    Article • Journal of Endodontics, December 2011, Elsevier

    Dr Ronald Ordinola Zapata

  27. Physical Properties and Interfacial Adaptation of Three Epoxy Resin–based Sealers

    Article • Journal of Endodontics, October 2011, Elsevier

    Dr Ronald Ordinola Zapata

  28. Biofilm Dissolution and Cleaning Ability of Different Irrigant Solutions on Intraorally Infected Dentin

    Article • Journal of Endodontics, August 2011, Elsevier

    Dr Ronald Ordinola Zapata

  29. The influence of cone-beam computed tomography and periapical radiographic evaluation on the assessment of periapical bone destruction in dog's teeth

    Article • Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, August 2011, Elsevier

    Dr Ronald Ordinola Zapata

  30. Removal efficiency of propolis paste dressing from the root canal

    Article • Journal of Applied Oral Science, December 2010, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  31. Influence of Calcium Hydroxide Association on the Physical Properties of AH Plus

    Article • Journal of Endodontics, June 2010, Elsevier

    Dr Ronald Ordinola Zapata

  32. Bacterial leakage in obturated root canals—part 2: a comparative histologic and microbiologic analyses

    Article • Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, May 2010, Elsevier

    Dr Ronald Ordinola Zapata

  33. Evaluation of single root canals filled using the lateral compaction, tagger's hybrid, microseal and guttaflow techniques

    Article • Brazilian Dental Journal, January 2010, FapUNIFESP (SciELO)

    Dr Ronald Ordinola Zapata

  34. A preliminary study of the percentage of sealer penetration in roots obturated with the Thermafil and RealSeal-1 obturation techniques in mesial root canals of mandibular molars

    Article • Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, December 2009, Elsevier

    Dr Ronald Ordinola Zapata

  35. Influence of Preflaring on the Accuracy of Length Determination With Four Electronic Apex Locators

    Article • Journal of Endodontics, September 2009, Elsevier

    Dr Ronald Ordinola Zapata

  36. Depth and percentage of penetration of endodontic sealers into dentinal tubules after root canal obturation using a lateral compaction technique: A confocal laser scanning microscopy study

    Article • Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, September 2009, Elsevier

    Dr Ronald Ordinola Zapata

  37. Confocal Laser Scanning Microscopy Is Appropriate to Detect Viability of Enterococcus faecalis in Infected Dentin

    Article • Journal of Endodontics, October 2008, Elsevier

    Dr Ronald Ordinola Zapata