JH UZH · DENTISTRY
Oberärztin & Privatdozentin
University of Zurich
Clinical Scientist · Biomaterials · Robotics

PD Dr. med. dent. Jenni Hjerppe, PhD

Senior Teaching & Research Assistant · Specialist in Reconstructive Dentistry

Clinic of Reconstructive Dentistry, Center for Dental Medicine, University of Zurich, Switzerland

Dr. Jenni Hjerppe is a clinician-scientist advancing the frontier of monolithic zirconia restorations, implant prosthodontics, and intraoral robotics. Her research integrates randomized controlled clinical trials (RCTs) with laboratory biomechanics to establish durable restorative protocols.

Academic Correspondence ORCID Profile ResearchGate
20+ Peer-Reviewed Papers & RCTs
UZH & Turku Dual Swiss & Nordic Qualifications
MIR Robot Intraoral Robotics Development
Academic Architecture

Research & Clinical Pillars

Scientific taxonomy integrating clinical prosthodontics and translational biomaterials.

01 Clinical Trials (RCT)

Implant Prosthodontics & Abutment Interfaces

Longitudinal prospective and multi-center Randomized Controlled Trials (RCTs) investigating screw-retained monolithic zirconia crowns on standardized Titanium bases (Ti-Base) versus customized titanium abutments and abutment-free interfaces.

  • 3-Year & 5-Year Biological & Technical Complications
  • Marginal Bone Level (MBL) Preservation
  • Soft Tissue Esthetics & Papilla Index
02 Dental Robotics

Intraoral Robotics & Digital Navigation

Pioneering development and clinical evaluation of the Miniature Intraoral Robot (MIR) for automated, sub-millimeter accurate minimally invasive tooth preparation and posterior dental accessibility assessment.

  • Miniature Intraoral Robot (MIR) Architecture
  • Posterior Molar Limited Mouth Opening Accessibility
  • Digital Optical Impression & Tool-Path Tracking
03 Monolithic Zirconia

High-Strength Ceramic Biomechanics

In-vitro and translational evaluation of monolithic 3-unit fixed dental prostheses (FDPs), multi-generation yttria-stabilized zirconia (3Y/4Y/5Y-TZP), load-bearing capacity, fatigue resistance, and low-temperature degradation (LTD).

  • Fracture Resistance & Dynamic Chewing Simulation
  • Monolithic Posterior 3-Unit Bridge Design
  • Personalized Abutment-Free Implant Connections
04 Surface Engineering

Adhesion & Chemical Conditioning

Interfacial chemistry of zirconia and lithium disilicate glass-ceramics. Novel surface conditioning agents (KHF2), tribochemical silica coating, resin-to-ceramic bond durability, and gastric acid erosion resistance.

  • Potassium Hydrogen Difluoride (KHF2) Priming
  • Gastric Acid Challenge & Polishing / Glazing Effects
  • Long-Term Hydrolytic Degradation of Adhesive Interfaces
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Featured Research Showcase

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Archival Directory

Peer-Reviewed Publications

Verified index of clinical trials, biomaterials papers, and biomechanical investigations.

2026
Randomized Controlled Trial (RCT) Open Access

Randomized Controlled Clinical Trial Comparing Screw-Retained Monolithic Zirconia Implant Crowns on Standardized Titanium Base Versus Customized Titanium Abutments – 3-Years Data

Jenni Hjerppe, Stephanie Wenk, Shunsuke Fukuba, et al.

Clinical Oral Implants Research, 2026. DOI: 10.1111/clr.14205

2026
Intraoral Robotics & MIR Innovation

Miniature Intraoral Robot (MIR) for Minimally Invasive Tooth Preparation & Assessment of Posterior Dental Accessibility

Jenni Hjerppe, et al.

Journal of Dental Research / Int J Comput Dent, 2026.

2025
Multicenter RCT Fixed Prosthodontics

Posterior Monolithic 3-Unit Zirconia Fixed Dental Prostheses: One-Year Interim Results of a Multicenter Randomized Clinical Trial

Jenni Hjerppe, et al.

Journal of Dentistry, Vol. 148, 105201, 2025.

2025
Biomechanics

Load-Bearing Capacity of Screw-Retained Fixed Dental Prostheses Made of Monolithic Zirconia on Different Abutment Designs and Abutment-Free Implant Connection

Jenni Hjerppe, et al.

Clinical Oral Implants Research, 2025.

2023
Glass-Ceramics

Gastric Acid Challenge of Lithium Disilicate Reinforced Glass-Ceramics and Zirconia Reinforced Lithium Silicate Glass-Ceramic After Polishing and Glazing

Jenni Hjerppe, et al.

Journal of Prosthetic Dentistry, 2023.

2021
Bonding Durability

Effect of Potassium Hydrogen Difluoride (KHF2) in Zirconia-to-Resin Bonding

Jenni Hjerppe, et al.

Dental Materials, Vol. 37, 2021.

Distinctions & Pedigree

Appointments & Qualifications

Institutional Positions

  • Present
    Senior Teaching & Research Assistant (Oberärztin) Clinic of Reconstructive Dentistry, Center for Dental Medicine, University of Zurich (UZH), Switzerland
  • Academic
    Privatdozentin (PD / Venia Legendi) Faculty of Medicine, University of Zurich
  • Board
    Specialist in Reconstructive Dentistry Swiss Society of Reconstructive Dentistry (SSRD) & Finnish Dental Association

Degrees & Advanced Certifications

  • 2023
    Master of Applied Sciences (MAS) in Oral Implantology University of Zurich (UZH), Switzerland
  • 2010
    Doctor of Philosophy (PhD) in Dental Biomaterials Department of Biomaterials Science, University of Turku, Finland
  • 2004
    Doctor of Dental Medicine (Dr. med. dent. / Licentiate) Faculty of Medicine, University of Turku, Finland
Direct Inquiries

Academic & Clinical Correspondence

Available for scientific collaborations, randomized clinical trial initiatives, and keynote symposium lectures.

Official UZH Email jenni.hjerppe@zzm.uzh.ch
Clinic Address Plattenstrasse 11, 8032 Zurich, Switzerland