Johannes Angermair

University Medical Center Freiburg · Department of Oral and Maxillofacial Surgery

Background The stability of implant-abutment connection is crucial to minimize mechanical and biological complications. Therefore, an assessment of the microgap behavior and abutment displacement in different implant-abutment designs was performed. Methods Four implant systems were tested, three with a conical implant-abutment connection based on...

Aims: The aim of this prospective, clinical study was to evaluate the clinical performance and histological outcome of a new equine hydroxyapatite collagenated bone block (eHAC) for horizontal bone grafting prior to implant placement. Materials and methods: Five patients (two male/three female) with a mean age of 51.6 years (range 22-66 years) a...

Objectives Cryopreservation is discussed as a viable method of preserving teeth for determined autogenous tooth transplantation. Unchanged physical properties of hard tooth tissues are crucial for functional healing. Due to different thermal expansion coefficients of enamel and dentin or the crystallization process, the freezing process may lead to...

As a possible reason for mechanical and microbiological complications, the stability of conical implant-abutment and butt-joint connections is crucial for the long-term prognosis of dental implants.Therefore, the present study quantitatively assessed microgap formation and abutment displacement in different implant-abutment designs. Three implant s...

Objective: Premolar autotransplantation represents an effective therapeutic option for the treatment of juvenile dentition with either aquired or congenital hypodontia. The objective of this prospective clinical study was to quantitatively assess bone and soft tissue levels after autogenous premolar transplantation by clinical and radiographic par...

Background: To present a new idea for rapid management of tooth avulsion in young children and adolescents (age: 6 to 16) by this case report. Case presentation: A nine-year-old boy presented with loss of upper permanent central incisor in early mixed dentition (6 to 10 years, phase I). The not yet fully resorbed primary canine was used as tooth tr...

Die implantologische Versorgung mit Zirkonimplantaten wird auf Grund verbesserter Materialeigenschaften wie niedriger Plaqueaffinität und guter Biokompatibilität als Alternative zu Titanimplantaten diskutiert. Dieser Fallbericht beschreibt eine ästhetisch ansprechende Versorgung im Prämolarenbereich eines jungen Mannes. Trotz leichter Knochen- und...

This case report demonstrates the ablation of a dermal nevus using a diode laser in the aesthetically very demanding facial area of the nasal tip. The clinical outcome shows good results and a high level of patient satisfaction. Due to effective wound granulation and healing, elaborate skin grafts could be avoided. The application of the contact la...

Objective The aim of this study was to investigate whether the growth of soft and bone tissue in children with traumatic tooth loss or agenesis of teeth can be developed reliably, using a new technique of autogenous primary canine transplantation. Materials and methods A total of 10 patients (age 7-13 years) were treated either for trauma or for a...

To study differences between aspirin-tolerant patients and aspirin-intolerant patients concerning vascular endothelial growth factor (VEGF) expression. Recent publications strongly suggest the involvement of VEGF and its receptors in the pathophysiologic process of nasal polyps. We subjected 43 polyp specimens to semiquantitative immunohistochemica...