Ulrich Helfenstein
University of Zurich
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Ulrich Helfenstein.
Sozial-und Praventivmedizin | 1980
Z. Curilović; Ulrich Helfenstein; H. H. Renggli; U. P. Saxer; M. O. Schmid; Felix Lutz
A clinical epidemiological examination of the health status of the teeth and supporting structures of 1084 recruits at a summer recruits-school was conducted. With one exception all of the Swiss cantons were represented among the recruits. Only one recruit had a clinically healthy periodontium; all of the others showed inflammatory changes of the gingivae. The average PDI was 3.58. In the majority of the recruits signs of early bone loss around one or more sites was observable. Teeth with markedly abraded chewing surfaces did not show an increased prevalence of bone loss. An examination of existing fillings and crowns revealed a large number of unsatisfactory filling margins. The average DMFT value of 14.5 was mainly the result of the high number of filled teeth.
Community Dentistry and Oral Epidemiology | 1994
Ulrich Helfenstein; Marcel Steiner
Statistical Methods in Medical Research | 1996
Ulrich Helfenstein
Statistics in Medicine | 1986
Ulrich Helfenstein
International Journal of Epidemiology | 1991
Ulrich Helfenstein
Dermatology | 1990
Brunello Wüthrich; Helen I. Joller-Jemelka; Ulrich Helfenstein; P.J. Grob
American Journal of Dentistry | 2004
Marcel Steiner; Ulrich Helfenstein; Giorgio Menghini
Community Dentistry and Oral Epidemiology | 1994
Ulrich Helfenstein; Marcel Steiner
Statistics in Medicine | 1991
Ulrich Helfenstein; Ursula Ackermann-Liebrich; Charlotte Braun-Fahrländer; Hans Urs Wanner
Accident Analysis & Prevention | 1990
Ulrich Helfenstein
Collaboration
Dive into the Ulrich Helfenstein's collaboration.
