School of Dentistry

Restorative Dentistry at OHSU

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The Department of Restorative Dentistry includes biomaterials, operative dentistry, implant dentistry, esthetic dentistry, and prosthodontics. Full- and part-time faculty members guide the development of student doctors in the classroom and in clinics through instruction and hands-on learning. Our faculty are involved in clinical research, either at the OHSU School of Dentistry or through external organizations. Many faculty members treat patients in the OHSU Dental Clinics.

Click HERE to get to know our Restorative Department Faculty.

Restorative Dentistry News

School of Dentistry Finalists for Outstanding Service

The Faculty Senate Service Award recognizes activities that one does related to their job related to being a dental academic.  Special thanks to Dr. Lisa Greene who chaired this event, and congratulations to the winner, Mark Mitchell, Associate Dean, Admissions and Student Affairs. Rose McPharlin, D.D.S. and Juliana da Costa, D.D.S., M.S., both faculty members in Restorative Dentistry, were finalists for this award. 

Juliana da Costa, D.D.S., M.S.
Juliana da Costa, D.D.S., M.S.

Juliana da Costa, D.D.S., M.S.
Professor, Restorative Dentistry

Dr. da Costa is currently the preclinical director and Vice-Chair of the department of restorative dentistry. She mentors students with research projects, and faculty in course development and professional development. Dr. da Costa works hand-in-hand with underperforming students to boost their skills and confidence in the "no student left behind" program that she created. She was the Chair of "Clinical Sciences Standard Committee" foSOD accreditation. She gathered information and wrote this section of the self-study. Dr. Da Costa serves the community seeing patients in faculty dental practice. In the last five years, she has served in 15 School of Dentistry and 6 OHSU committees. She has served at different roles in many national and international organizations. Dr. da Costa is part of an editorial board and a reviewer for many dental journals. And is proud to represent and be the OHSU liaison in several dental organizations.

Rose McPharlin, D.D.S.
Rose McPharlin, D.D.S.

Rose McPharlin, D.D.S.
Associate Professor, Clinical Restorative Dentistry.

Dr. McPharlin is an Associate Professor and Director of Clinical Restorative Dentistry. Joining the faculty in 2006 after first volunteering in the simulation preclinic, she has embarked in service from the beginning. She served the Faculty Senate from 2006-2012 and currently since 2015. Beside teaching and scholarly activity, she adds to the OHSU community through service on numerous committees and activities.

Internationally, she has supervised students in the provision of hundreds of dental services to multiple towns in the Philippines twice; the third trip scheduled this year was curtailed; supplies and goods raised were donated to those overseas. Nationally, she is a longtime participant in the Consortium of Operative Dentistry Educators and serves as Regional Chair to promote best practices in dental schools in two Canadian provinces and six states.

Her research in dental adverse events and patient safety led to presentations and consulting for the Oregon Health Authority. She contributes to multiple university committees that address interprofessional education, diversity and inclusion, assessment, and faculty affairs. She serves her school and department by contributing to, organizing, or leading committees; she has multiple appointments. She is consistently involved at the community level by volunteering dental services at the Mission of Mercy, Compassion Clinics, Saturday clinics, Special Olympics and is a volunteer or fundraiser for the Oregon Food Bank, the Pancreatic Cancer Association and the Children's Cancer Association. She does all this because she loves her work and people and her service facilitates knowing people and improving conditions for everyone.

Despoina Bompolaki,D.D.S., M.S.
Despoina Bompolaki,D.D.S., M.S.

Despoina Bompolaki, D.D.S., M.S., F.A.C.P.
Associate Professor, Restorative Dentistry

Dr. Despoina Bompolaki, Associate Professor at the Department of Restorative Dentistry, and her team shared their findings on the clinical outcomes of implant restorations that have been completed by our OHSU predoctoral students in the last decade. For the complete article that was published in the Journal of Prosthodontics, click here.

The same team investigated the effects of interproximal contact loss that occurs between implants and adjacent natural teeth, a topic of high interest in the field of Implant Dentistry. Their work was published in the Journal of Prosthetic Dentistry. Read the full article here.

These projects were partially funded by the American Academy of Implant Dentistry.

Jens Kreth Ph.D.
Jens Kreth Ph.D.

Project Title: Streptococcal secretion of pyruvate – a novel antioxidant strategy in the oral biofilm
PI: Jens Kreth
Effort: 25% (3 Calendar Months)
Funding Agency: NIH
Grant Number: 1R21DE029612
Project Dates: September 2020 – August 2022

Project Title: Pyruvate oxidase: a molecular determinant of commensalism among the oral microbiome
PI: Jens Kreth
Effort: 25% (3 Calendar Months); Funding Agency: NIH
Grant Number: R01DE029492
Project Dates: April 2020 – March 2025

Justin L. Merritt Ph.D.
Justin L. Merritt Ph.D.
  • Appointed member of the Oral Dental and Craniofacial Sciences (ODCS) study section at the NIH. This is the study section that reviews all of the dental R01 and R21 grants for the NIH. Term runs through 2023.
  • Guest presenter at Nationwide Children's Hospital in Columbus, Ohio.  Lecture entitled: "From stimulus to response: How Streptotoccus mutans coordinates environmental stress perception with structural remodeling of extant biofilms." 
Carmem Pfeifer, DDS, PhD

Acta Biomaterialia, Volume 115, 1 October 2020, Pages 148-159  Synthesis of di- and triacrylamides with tertiary amine cores and their evaluation as monomers in dental adhesive interfaces.

Fugolin, A.P.P., Navarro, O., Logan, M.G., Huynh, V., França, C.M., Ferracane, J.L., Pfeifer, C.S.  Biomaterials and Biomechanics, Department of Restorative Dentistry, Oregon Health & Science University, Portland, OR 97239, United States

In an attempt to increase the service life of dental adhesive interfaces, more hydrolytically and enzymatically-stable methacrylate alternatives, such as methacrylamides, have been proposed. The aim of this study was to investigate polymerization behavior, as well as mechanical and biological properties of experimental adhesives containing multi-functional acrylamides. In general, the pure methacrylate mixture polymerized faster and to a greater extent than the acrylamides. Interfacial bond strength was greater and more stable long-term for the newly synthesized acrylamide formulations (less than 4% reduction at 6 months) compared to the methacrylate experimental control (42% reduction at 6 months). HEMA (the control) degraded by almost 90%, while the acrylamides showed no degradation in acidic conditions. The main conclusions were: despite demonstrating high water sorption, the acrylamide-containing materials had similar mechanical and biological properties and enhanced interfacial bond strength stability compared to the methacrylate control. Future directions: we have already used these materials in a simulated restoration tested in vitro in the bioreactor, and even in the presence of bacteria and simulated chewing, these adhesives keep the margin of the restoration sealed, while the control material does not. Super cool!

Amit Punj, B.D.S., D.M.D., M.C.R.
Amit Punj, B.D.S., D.M.D., M.C.R.

Dr. Amit Punj contributed and published multiple articles in various dental journals. One of them being a case-report on an interdisciplinary treatment involving a young lady with congenitally missing teeth:  Punj A, Yih J, Rogoff GS. Interdisciplinary management of nonsyndromic tooth agenesis in the digital age. J Am Dent Assoc. 2020 Dec 12.

Another being a cross-sectional study on the dentist-dental laboratory communication in Oregon:  Punj A, Bompolaki D, Kurtz KS. Dentist-laboratory communication and quality assessment of removable prostheses in Oregon: A cross-sectional pilot study. J Prosthet Dent. 2020 Aug 10

congenitally missing teeth before after (Punj)