Z46.3
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Patients with a need for treatment with removable partial dentures retained by telescopic crowns, attachments or clasps who were informed about different therapies and decided to be trated by one of the three possibilities - telescopic crowns can only be used if the teeth can be prepared in one inserting direction, that has to consider the orrientation of the alveolar bone - only situations with an anterior dentition are accepted with missing molars or missing morals and premolars in both sides of the treated jaw
Exclusion criteria
Exclusion criteria: - persisting craniomandibular dysfunctions - massive xerostomia - handicaps which avoid a minimal oral hygiene - patients who do not want to accept the follow up examination - patients older than 75 years - patients younger than 25 years - general anamnestic contraindications: chronical gastroesophageal reflux, bulimia, tuberculosis, hepatitis, therapy using a anticoagulant, immuno supression, alcohol or drug addiction, general medical problems avoiding the planned treatment, general medical problems avoiding a follow up examination for 5 years
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Final recall after 5 years of follow-up examination or loss of the dentures funktion e.g. by loss of teeth or dentures retention measured by a special device. | — |
Countries
Germany
Contacts
Department of Prosthodontics, Preclinical Education and Dental Materials Science, University of Bonn, Bonn, Germany