School of Dentistry
Chair and Department of Periodontology
Our experts for long-term tooth maintenance and optimal dental care
The Department of Periodontology focuses on advising and treating patients with the aim of establishing a rational longevity of natural dentition, reconstructing the oral health and promoting good oral hygiene. During the rehabilitation phase, the emphasis is put on avoiding removable prosthetic restorations whenever possible and using the dental implants, amongst other methods, to support fixed partial or complete dentures.

Chair holder

Prof. Dr. med. dent.
Anton Friedmann
Chair Holder
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Department Management
Dental clinic | Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 Witten
Room number: 2.184
Research
In our research, we are interested in following-up the outcome form new treatment methods and certified biomaterials in clinical practice in long-term. Besides the clinical research, our laboratory carries out in vitro studies which help us to gain insights into tissue reactions at the cellular or immunological level.
Research specification:
- Protein expression patterns of various cell types on different substrates used as membranes for tissue and bone regeneration (GTR/GBR) in clinical applications
- Animal models for GBR and soft tissue regeneration
- Clinical investigations into various techniques for reducing remodeling process following tooth extraction
- Soft tissue conditioning using tissue expanders
- Epidemiological studies on the prevalence and diagnosis of gingival morphotypes
- Use of xenogenic substitute materials for soft tissue augmentation
- Clinical studies on implant integration in systemically compromised patients
- Clinical studies with bio-materials for regenerative periodontal therapy and bone regeneration
Publications
Teaching
The aim of the department is to provide students with the following knowledge and skills:
- comprehensive theoretical basic knowledge of periodontology,
- comprehensive knowledge of clinical medicine and surgery, with particular emphasis on the interplay between periodontal diseases and general medical conditions (individual periodontitis risk profile),
- comprehensive knowledge of the prevalence of periodontitis and its relationship with healthcare systems,
- sound knowledge of diagnostics, the disease definition and clinical treatment approaches,
- clinical experience in the assessment, diagnosis and treatment of simple and less severe cases of periodontitis, and
- clinical experience in the assessment and diagnosis of more complex cases suffering from periodontitis.
Our teaching activities include lectures, seminars and ‘problem-based learning’ (PBL). We also offer practical exercises in surgery as well as training in minimally invasive periodontal surgery using pig jaw models. Teaching is delivered by a professor and an associated professor, specialised in the field of periodontology. Furthermore, the practical focus is transported by involving highly skilled and experienced external specialists for contract lecturing.
Further training to become a specialist in periodontology
Degree
The Department of Periodontology offers an opportunity to complete a three-year specialist training becoming a specialist in periodontology, recognised by the Westfalen-Lippe Dental Association. A prerequisite for participating in the programme is the completion of one year’s general dental practice.
First year
The first year of the training focuses on the fundamentals of pathological anatomy, the fundamentals of prevention, clinical, radiological and microbiological diagnostics, initial treatment, the unassisted execution of simple periodontal surgical procedures, the fundamentals of implantology and perioprosthetic, and assisting in complex surgical procedures.
Second and third years
The curriculum for the second and third year covers the unassisted execution of advanced and complex surgical procedures, taking into account regenerative techniques, mucogingival and plastic surgery techniques, the treatment of oral mucosal diseases, and the planning, execution, management and post-operative analysis of complex treatment cases.
Theoretical further training
Besides the clinical part for generating practical skills, mandatory active participation in weekly seminars and discussion of the literature in English provide theoretical knowledge in periodontology at international level. Furthermore, case planning sessions and case discussions are held weekly.
Further information
Further information on how to become a specialist in periodontology within the Westfalen-Lippe Dental Association
Information for patients
Our range of services
These are the services we offer to patients:
- We offer a consultation hour once a week for new patients, which is used for diagnostic assessment and advice: by telephone appointment only.
- For those interested in treatment, a comprehensive, personalised and multidisciplinary treatment plan for the management of advanced periodontitis will be introduced. We are happy to do this in agreement and collaboration with patients’ regular dentists and specialist colleagues within our clinic. The aim is a long-term tooth maintenance, if necessary, with the additional help from using dental implants.
- Complex treatment for patients diagnosed with so-called “aggressive periodontitis” is based on a solid expertise in this field of periodontitis treatment.
- We offer the planning and treatment of periodontitis patients using dental implants executing both, the surgical and reconstructive part.
- Our services also include bone augmentation procedures as part of pre-implant or pre-prosthetic treatment.
Individual procedures and treatment methods:
- Non-surgical periodontitis treatment
- Surgical periodontitis treatment
- Guided tissue regeneration using enamel matrix proteins or membrane-supported techniques
- Pre-prosthetic surgery (e.g. crown lengthening)
- Plastic periodontal surgery (e.g. covering exposed root surfaces)
- Bone augmentation procedures for periodontitis patients following tooth loss in conjunction with implant-supported dentures
- Soft tissue and bone reinforcement prior to orthodontic treatment and, where necessary, coverage of recessions following orthodontic treatment
- Supportive periodontitis therapy (SPT)
Not every case of periodontitis needs to be treated by a specialist. We are happy to work in collaboration with your general practitioner. If you have any questions about your periodontal health or a specific treatment, or if you would like to book an appointment with us, you will find the necessary contact details below.
What is periodontitis?
Periodontitis – often incorrectly referred to as ‘periodontosis’ in everyday language – is widespread in Germany. According to the penultimate ‘German Oral Health Study’ (DMS IV), over 70 per cent of adults up to the age of 65 and over 85 per cent of older people suffer from periodontitis. Among young people, around ten per cent are affected by aggressive periodontitis.
The occurrence of receding gums – technically known as recession – is not always caused by periodontitis. Particularly in visible areas, non-inflammatory causalities are often the reason for such changes. The individual dental history must be meticulously studied to allow for a personified therapy selection.
The problem is that, despite the high prevalence of periodontal diseases in Germany, there are only a small number of dentists who completed the specialisation training in this field: ‘specialist dentists in periodontology’ registered with the Westphalia-Lippe Dental Association (ZÄKWL) and the ‘specialists in periodontology’ recognised by the DGParo e.V.
Symptoms of periodontitis
Periodontitis can be diagnosed and treated even in its early stages. If, initially, only the outer part of the periodontium is affected, the gums will first become red and swollen, and may bleed when you brush your teeth. Other symptoms may include an unpleasant taste or bad breath. If the inflammation progresses further, it can lead to receding gums and loose teeth.
Symptoms of gum recession
Receding gums not associated with an inflammation will be recognised by those individuals who are deeply concerned about their health and care about their appearance. Age plays a minor role in these changes. Adolescents and young adults may already detect such recession in their gums; in such cases, professional consultation is recommended. For all approaches aiming to correct the gum's appearance: the earlier a change is noticed, the simpler the treatment will be.
Appointments for patients
To book an appointment, please call
Telephone: +49 (0)2302/926-608 (please leave a message and we will call you back)
or email us: parodontologie@uni-wh.de
The team at the Chair and Department of Periodontology

Dr. med. dent.
Daniel Diehl
Senior Consultant
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 WittenRoom number: 1.OG

Maria Cara Allemann
Doctor in Specialist Training
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 45
58455 WittenRoom number: 1. OG

Dr. med. dent.
Charlotte Brauer
Training Assistant
Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 WittenRoom number: 1. OG

Rebekka Janzen
Doctor in Specialist Training
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 WittenRoom number: 1. OG

Priv. Doz. Dr.
Hakan Bilhan
Lecturer
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 45
58455 WittenRoom number: 1. OG

PD Dr. med. dent.
Dogan Kaner
Lecturer
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 45
58455 WittenRoom number: 1.OG

Em.Univ.-Prof. Dr. med. dent.
Wolf-Dieter Grimm
Professor Emeritus
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 Witten
Beatrice Fricke
Lead Dental Nurse
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 WittenRoom number: 1. OG

Larissa Petrich
Dental Assistant
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 45
58455 Witten
Julia Erdelmann
Dental Assistant
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 44
58455 WittenRoom number: 1.OG

Lea Maria Leimbach
Dental Assistant
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 45
58455 WittenRoom number: 1. OG

Sabrina Richter
Dental Assistant
Faculty of Health (School of Dentistry, Oral and Maxillofacial Medicine) | Chair of Periodontology
Alfred-Herrhausen-Straße 45
58455 WittenRoom number: 1. OG