Jenni Hjerppe

• About the Speaker

Jenni Hjerppe
PD, Dr.med.dent, Ph.D.

Senior Research and Teaching Assistant
Clinic of Reconstructive Dentistry
Center for Dental Medicine
University of Zürich

EDUCATION

Habilitation: Docent Title (PD, Privat Dozentin), University of Zürich (2024)
Specialist in Reconstructive Dentistry (SSRD Examination for Fachzahnärztin Title 09/2024), University of Zürich, Switzerland (2020–2023)
Master of Advanced Sciences in Oral Implantology, University of Zürich, Switzerland (2020–2023)
Dr.med.dent. Title, University of Zürich, Switzerland (2022)
Habilitation: Docent Title, University of Turku, Finland (2022)
Specialist in Prosthodontics and stomatognathic physiology, University of Helsinki, Finland (2010–2013)
PhD degree, University of Turku, Finland (2010)
DDS degree, University of Oulu, Finland (2004)

WORK EXPERIENCE

Senior Research and Teaching assistant, 80% University of Zürich, Switzerland (2023 – present)
Specialist in Prosthodontics, 20% Private Practice, Zürich, Switzerland (2023 – present)
Resident Physician, Clinic of Reconstructive Dentistry, University of Zürich (2020–2023)
ITI (International Team for Implantology) Scholar, Clinic of Reconstructive Dentistry, University of Zürich, Switzerland (2019–2010)
Senior Prosthodontist, Department of Oral and Maxillofacial Diseases, Head and Neck Center, Helsinki University Hospital, Helsinki, Finland (2015–2018)
Assistant Professor, University of Turku, Finland (2015–2018)
Specializing dentist, in Prosthodontics and Stomatognathic Physiology, Helsinki University Hospital, Helsinki, Finland (2012–2014)
Specializing dentist, in Prosthodontics and Stomatognathic Physiology, Specialist Dental Care Unit, City of Helsinki, Helsinki, Finland (2010–2012)
University Assistant, Department of Biomaterial Sciences, University of Turku, Finland (2010)
Visiting Scholar, New York University, Department of Biomaterials and Biomimetics, New York, USA, 4 Months (2009)
Research Assistant, Department of Prosthodontics and Biomaterial Sciences, University of Turku, Finland, part time (20%) (2007–2009)
General Dentist, Public Health Care Center, Järvenpää, Finland (2004–2009)
Global Health Course, University of Dar es Salaam, Tanzania, 2 Months (2004)
Exchange Student, Università degli Studi di Siena, Siena, Italy, 3 Months (2002)
Exchange Student, Karolinska Institutet, Stockholm, Sweden, 1 year (1999–2000)

SUMMARY OF ACADEMIC WORK

16 years of teaching experience in under- and postgraduate education (2009–2025)
36 publications (18 first or last authorships), h-index of 12 (Web of Science)
Around 70’000 € of personal grants
https://www.researchgate.net/profile/Jenni-Hjerppe
Reviewer Board member: International Journal of Prosthodontics
Ad hoc Reviewer: Clinical Oral Implants Research, European Journal of Prosthetic and Restorative Dentistry, European Journal of Dentistry

POSITIONS OF RESPONSIBILITY IN PROFESSIONAL AND SCIENTIFIC ORGANIZATIONS

Chairperson, ITI Section Finland (International Team for Implantology) (2023 – present)
Coordinator, Consensus project, European Prosthodontic Association (EPA) (2021–2023)
Education Delegate, ITI Section Finland (2018–2022)
Member of Specialization Recognition Committee, European Prosthodontic Association (EPA) (2018 – present)
Chairperson, Finnish Dental Society Apollonia, Implantology Division (2017–2018)
Board member, Finnish Dental Society Apollonia, Implantology Division (2013–2017)
Board member, Helsinki Region Dentists Association (2013–2015)
Chairperson, Helsinki Region Dentists Association, Chairperson (2012–2013)
Secretary, Helsinki Region Dentists Association, Secretary (2008–2011)
Yearbook editor, Odontologiska Samfundet i Finland (2007–2009)
Board member, Keski-Uusimaa Dental society (2005–2008)
Several Activities at Finnish Dental Students’ Association and Oulu University Dental Students’ Association (2002–2004)

ACADEMIC AWARDS AND ACKNOWLEDGEMENTS

Best Oral Presentation, European Prosthodontic Association (EPA) congress (2023)
EPA-Recognized Prosthodontist, European Prosthodontic Association (EPA) (2018)
Specializing Student of the Year, University of Helsinki, Finland (2012)
Frechette Award Finalist, International Association of Dental Research (IADR) (2011)
Representing Finnish Dental Association in Global Health Project, Dar es Salaam, Tansania (2004)
Oriola-Sirona Award for Dental Student, University of Oulu, Finland

• Abstract

Considerations for personalized design and choice of material in single implant restorations

The development of CAD/CAM workflow was in a key role when gold-casted metalceramic restorations lost their popularity as material for implant restorations. Individual titanium and zirconia implant abutments were the first step in a new era of high accuracy, aesthetics, and strength, together with cheaper manufacturing methods. In clinical studies however, the individual zirconia abutments showed high failure rates. Additionally, the manufacturing of such individual abutments is often centralized which was prolonging the treatment time.

The development of prefabricated titanium base abutments enabled fully digital workflow for producing implant-supported restorations, however, long-term clinical evidence of these restorations does not exist yet. Questions have also been raised about the emergence profile of titanium base abutments possibly leading to biological problems. In the future, the key to success could be a fully personalized abutment-free implant restoration.

In this lecture the pros and cons of diOerent abutment / restoration combinations for single implant restorations are discussed in light of scientific evidence and clinical examples.

Learning objectives:

To understand the relevant properties, benefits and risks of diOerent restoration designs used for implant supported single prostheses.
To be able to select the most appropriate restoration combination for diOerent clinical situations.