Picture of                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Dr. Renata Grazziotin Soares

Dr. Renata Grazziotin Soares Assistant Professor

Dr. Grazziotin obtained her Dental Surgeon degree at the Federal University of Santa Maria, RS, Brazil (UFSM). After some years in private general dental practice she undertook graduate studies focused on Endodontics (Specialty Clinical degree, MSc and PhD) at the Brazilian Society of Dental Surgeons (Sobracid) and Lutheran University of Brazil (ULBRA). She worked as an Endodontist and as a part-time instructor (in two Universities) and, then, as a full time Assistant Professor of Endodontics at the Federal University of Rio Grande do Sul, Brazil (UFRGS). She had the opportunity to spent 2 years as a research fellow: 1 year-internship at the School of Dentistry, Cardiff University, U.K.; and 1 year doing Post-doctoral research at the University of California, San Francisco (UCSF), USA. Then, she moved to Canada to work at the College of Dentistry, University of Saskatchewan, working full time as an assistant professor in endodontics and research projects.

Room 307 - 105 Wiggins Road, Saskatoon, SK S7N 5E4

Research Interests

Technology, Endodontic Instruments, Dental Education, Diagnosis Methods in Endodontics


1: Vilas-Boas DA, Grazziotin-Soares R, Ardenghi DM, Bauer J, de Souza PO, de Miranda Candeiro GT, Maia-Filho EM, Carvalho CN. Effect of different endodontic sealers and time of cementation on push-out bond strength of fiber posts. Clin Oral Investig. 2017 Oct 11. doi: 10.1007/s00784-017-2230-z. [Epub ahead of print] PubMed PMID: 29022137.

2: Grazziotin-Soares R, Nekoofar MH, Davies T, Hübler R, Meraji N, Dummer PMH. Crystalline phases involved in the hydration of calcium silicate-based cements: Semi-quantitative Rietveld X-ray diffraction analysis. Aust Endod J. 2017 Aug 30. doi: 10.1111/aej.12226. [Epub ahead of print] PubMed PMID: 28857353.

3: Carvalho CN, Grazziotin-Soares R, de Miranda Candeiro GT, Gallego Martinez L,  de Souza JP, Santos Oliveira P, Bauer J, Gavini G. Micro Push-out Bond Strength and Bioactivity Analysis of a Bioceramic Root Canal Sealer. Iran Endod J. 2017 Summer;12(3):343-348. doi: 10.22037/iej.v12i3.16091. PubMed PMID: 28808463; PubMed Central PMCID: PMC5527212.

4: Grazziotin-Soares R, Lind SL, Ardenghi DM, Curtis DA. Misconceptions amongst dental students: How can they be identified? Eur J Dent Educ. 2017 Feb 28. doi: 10.1111/eje.12264. [Epub ahead of print] PubMed PMID: 28244629.

5: Zanesco C, Só MV, Schmidt S, Fontanella VR, Grazziotin-Soares R, Barletta FB.  Apical Transportation, Centering Ratio, and Volume Increase after Manual, Rotary, and Reciprocating Instrumentation in Curved Root Canals: Analysis by Micro-computed Tomographic and Digital Subtraction Radiography. J Endod. 2017 Mar;43(3):486-490. doi: 10.1016/j.joen.2016.11.006. PubMed PMID: 28231983.

6: Imgärtchen MRA, Grazziotin-Soares R, Ardenghi DM, Fontanella VRC. (2016) Developing and evaluation of a Learning Object focused on factors that might interfere in the radiographic image. Journal: Revista da ABENO - Journal of the Brazilian Dental Education Association 16 (4), 114 – 124 

7: Salles, A.A.; Grazziotin-Soares, R.; Ardenghi, D.M.; Dal-Farra, R.A.; Barletta, F.B. (2015). Dental students' performance and perceptions on canal preparation with Ni-Ti rotary vs. stainless steel manual instruments: a mixed methods study. Revista da ABENO – Journal of the Brazilian Dental Education Association 15 (1), 97 – 109

8: Suman JM, Kuga MC, Da Rosa RA, Santini MF, Grazziotin-Soares R, Montagner F, Só MV. Antibacterial activity of chlorhexidine after final irrigation with ethanol: CLSM and culture-based method analysis. Microsc Res Tech. 2015 Aug;78(8):682-7. doi: 10.1002/jemt.22525. Epub 2015 Jul 3. PubMed PMID: 26138134.

9: Stella JP, Barletta FB, Giovanella LB, Grazziotin-Soares R, Tovo MF, Felippe WT, Estrela C. Oxygen Saturation in Dental Pulp of Permanent Teeth: Difference between Children/Adolescents and Adults. J Endod. 2015 Sep;41(9):1445-9. doi: 10.1016/j.joen.2015.04.024. Epub 2015 Jun 18. PubMed PMID: 26093471.

10: Zanette F, Grazziotin-Soares R, Flores ME, Camargo Fontanella VR, Gavini G, Barletta FB. Apical root canal transportation and remaining dentin thickness associated with ProTaper Universal with and without PathFile. J Endod. 2014 May;40(5):688-93. doi: 10.1016/j.joen.2013.09.001. Epub 2013 Oct 7. PubMed PMID:  24767565.

11: Akisue E, Gratieri SD, Barletta FB, Caldeira CL, Grazziotin-Soares R, Gavini G. Not all electronic foramen locators are accurate in teeth with enlarged apical foramina: an in vitro comparison of 5 brands. J Endod. 2014 Jan;40(1):109-12. doi: 10.1016/j.joen.2013.09.032. Epub 2013 Oct 25. PubMed PMID: 24332000.

12: Grazziotin-Soares R, Nekoofar MH, Davies TE, Bafail A, Alhaddar E, Hübler R,  Busato AL, Dummer PM. Effect of bismuth oxide on white mineral trioxide aggregate: chemical characterization and physical properties. Int Endod J. 2014 Jun;47(6):520-33. doi: 10.1111/iej.12181. Epub 2013 Sep 12. PubMed PMID: 24025109.

13: Reis AG, Grazziotin-Soares R, Barletta FB, Fontanella VR, Mahl CR. Second canal in mesiobuccal root of maxillary molars is correlated with root third and patient age: a cone-beam computed tomographic study. J Endod. 2013 May;39(5):588-92. doi: 10.1016/j.joen.2013.01.003. Epub 2013 Mar 7. PubMed PMID:  23611373.

14: Rutsatz C, Baumhardt SG, Feldens CA, Rösing CK, Grazziotin-Soares R, Barletta FB. Response of pulp sensibility test is strongly influenced by periodontal attachment loss and gingival recession. J Endod. 2012 May;38(5):580-3. doi: 10.1016/j.joen.2012.01.011. Epub 2012 Mar 9. PubMed PMID: 22515882.

15: Renner D, Grazziotin-Soares R, Gavini G, Barletta FB. Influence of pulp condition on the accuracy of an electronic foramen locator in posterior teeth: an in vivo study. Braz Oral Res. 2012 Mar-Apr;26(2):106-11. PubMed PMID: 22473344.

16: Grazziotin-Soares R, Barato Filho F, Vanni JR, Almeida S, Oliveira EP, Barletta FB, Limongi O. Flexibility of K3 and ProTaper universal instruments. Braz Dent J. 2011;22(3):218-22. PubMed PMID: 21915519.

17: Irala LE, Grazziotin-Soares R, Salles AA, Munari AZ, Pereira JS. Dissolution  of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and combined with EDTA. Braz Oral Res. 2010 Jul-Sep;24(3):271-6. PubMed PMID: 20877962.

18: da Silva KT, Grazziotin-Soares R, Limongi O, Irala LE, Salles AA. Wear promoted in the apical third of simulated canals after instrumentation with ProTaper universal system. J Appl Oral Sci. 2009 Sep-Oct;17(5):501-7. PubMed PMID: 19936533; PubMed Central PMCID: PMC4327681.