Draft:Didier Dietschi
Swiss dentist; creator of Natural Layering Concept
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Didier Dietschi is a Swiss dentist and academic known for his research in restorative and aesthetic dentistry. He is a Senior Lecturer at the University of Geneva and as of 2026, serves as the President of the European Academy of Esthetic Dentistry (EAED)[1]. Dietschi is best known for the development of the "Natural Layering Concept"[2] for composite restorations and for introducing protocols for indirect adhesive posterior restorations.
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Immediate Dentin Sealing
Cervical Margin Relocation
Cavity Design Optimization
Didier Dietschi | |
|---|---|
| Born | |
| Occupations | Dentist, academic |
| Known for | Natural Layering Concept Immediate Dentin Sealing Cervical Margin Relocation Cavity Design Optimization |
| Notes | |
Current President of the European Academy of Esthetic Dentistry (EAED) | |
Education and Academic Career
Dietschi completed his dental studies at the University of Geneva, where he earned his license in 1984 and a doctorate in 1988[3]. In 2003, he received a PhD in biomaterials science from the Academic Centre for Dentistry Amsterdam (ACTA), which is part of the University of Amsterdam[3].
In 2004, the University of Geneva appointed him as a Privat-Docent[3]. Throughout his academic career, he has held several teaching positions at the University of Geneva, rising to the rank of Senior Lecturer. He also serves as an adjunct professor at Case Western Reserve University in Cleveland, Ohio[3].
Publications and Research
Dietschi has authored or co-authored over 100 publications in peer-reviewed journals, focusing on the topics of adhesive and aesthetic restorations. As of 2026, he has 86 articles indexed in PubMed[4]. According to Google Scholar, his research has received over 9,600 citations, with an h-index of 49[5].
His primary contribution to the field is the Natural Layering Concept, a direct restorative technique first introduced in 1995 and formally published in 1997[2].
He is the co-author of the book Adhesive Metal-free Restorations, published by Quintessence in 1997 and translated into seven languages[6], and the author of the book Tooth Wear - Interceptive treatment approach with minimally invasive protocols, published by Quintessence in 2023[7].
The Natural Layering Concept
The Natural Layering Concept is a direct restorative technique developed by Dietschi and first introduced in 1995. Utilizing a biomimetic approach, the concept aims to replicate the natural anatomical structure and optical properties of human teeth[8].
The method simplified previous multi-layering techniques into a bilaminar system:
- Dentin Layer: Used to provide the restoration's base color and opacity.
- Enamel Layer: Used to manage the restoration's brightness and translucency.
Following its formal publication in 1997[2], the concept became a widely adopted protocol in restorative dentistry.
The Modern Approach to Indirect Posterior Restorations
In 1997 and 1998, Dietschi and Spreafico introduced a treatment protocol for partial indirect posterior restorations[6][9]. Subsequent research and studies provided support for these concepts, which comprise three core elements intended to address clinical challenges:
1) Immediate Dentin Sealing (IDS)
This concept concerns substrate treatment and was described by Dietschi and Spreafico in 1997 and 1998[9] and by Dietschi and co-workers[10][11] for class II indirect restorations. The procedure involves sealing dentin surfaces with a full adhesive system while the cavity remains isolated (typically with a rubber dam dam). Clinical advantages include reduced dentin dehydration (particularly when treating multiple cavities), minimized dentin contamination, protection against sensitivity during the provisional phase, and improvements in bond strength and stability of the adhesive interface.
2) Cavity Design Optimization (CDO)[9]
Developed in parallel with IDS, this protocol is intended to minimize tissue removal when adapting cavity design for indirect techniques, whether parallel or tapered. After applying a flowable composite liner to fill undercuts, the cavity geometry is regularized for the indirect restoration.
3) Cervical Margin Relocation (CMR)
CMR was introduced by Dietschi and Spreafico[9] for deep proximal preparations, specifically those that are intra-sulcular or have limited biological width violation, where impression-taking and cavity isolation during cementation are challenging.
Since these initial publications, scientific and clinical evidence has supported these concepts, which are currently recognized as a standard approach for indirect adhesive posterior restorations.
Professional Engagements and Affiliations
In addition to his academic roles, Dietschi's career includes several professional engagements and affiliations:
• Clinical Practice: Since 1990, he has maintained a private practice in Geneva, Switzerland, focused on restorative, aesthetic, implant, and periodontic dentistry[12]. The practice is known as the Geneva Smile Center[13].
• Teaching: Dietschi has delivered lectures and continuing education courses internationally on adhesive and aesthetic restorations. He conducts master programs through his educational center, Edudent International[14]. His external teaching engagements include the Interdisciplinary Dental Education Academy (IDEA) in the United States[15] and CEO Dental Seminars in Australia[16].
• Professional Leadership: He serves as the current president of the European Academy of Esthetic Dentistry (EAED)[1].
• Material Development: Dietschi collaborated with the dental manufacturer Edelweiss DR on the development of the Inspiro composite system[17]. The restorative material was designed specifically to implement the bilaminar principles of the Natural Layering Concept.
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