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.

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
Interactive Carousel

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