Dr.med.dent. Gunnar Seidler, Dr.med.Dr.med.dent. Friedrich Deussen MMSc. Kieferorthopäden is located in Biel, Switzerland on Neuengasse 5. Dr.med.dent. Gunnar Seidler, Dr.med.Dr.med.dent. Friedrich Deussen MMSc. Kieferorthopäden is rated 4.1 out of 5 in the category orthodontist in Switzerland.