2,081 research outputs found
Heinrich Straumann Dr. phil., Honorarprofessor für engl. Sprache u. Literatur an d. Univ. Zürich ; Bibliogr.
No full textMarginal fit of cemented and screw-retained crowns incorporated on the Straumann (ITI) Dental Implant System: an in vitro study
No full textAIM: The aim of this study was to assess the marginal fit of crowns on the Straumann (ITI) Dental Implant System with special consideration of different casting dental materials. MATERIAL AND METHODS: Sixty porcelain-fused-to-metal crowns were fabricated: 18 crowns on standard cone abutments with an impression cylinder, partially prefabricated analogs, no coping and screw-retained (A); 18 crowns on solid abutments without an impression device, no analogs, no coping and cemented (B); and 18 crowns on solid abutments using an impression transfer cap, an analog with a shoulder, no coping and cemented (C). In each group, six crowns were made on epoxy mastercasts (Bluestar), six on synthetic plaster (Moldasynt) and six on super hard stone (Fujirock). Six additional crowns were fabricated with the transversal screw retention system onto the Octa system with impression transfer caps, metal analogs, gold copings and screw-retained (D). Impregum was used as impression material. Crowns of B and C were cemented with KetacCem. Crowns of A and D were fixed with an occlusal screw torqued at 15 N cm. Crowns were embedded, cut and polished. Under a light microscope using a magnification of x 100, the distance between the crown margin (CM) and the shoulder (marginal gap, MG) and the distance between the CM and the end of the shoulder (crown length, CL) was measured. RESULTS: MGs were 15.4+/-13.2 microm (A), 21.2+/-23.1 microm (B), 11+/-12.1 microm (C) and 10.4+/-9.3 microm (D). No statistically significantly differences using either of the casting materials were observed. CLs were -21.3+/-24.8 microm (A), 3+/-28.9 microm (B), 0.5+/-22 microm (C) and 0.1+/-15.8 microm (D). Crowns were shorter on synthetic casting materials compared with stone casts (P<0.005). CONCLUSIONS: CMs fit precisely with both cemented and screw-retained versions as well as when using no, partial or full analogs
Implant survival after sinus elevation with Straumann(®) BoneCeramic in clinical practice: ad-interim results of a prospective study at a 15-month follow-up.
No full textAbstract: Objectives
Elevation of the sinus floor with Straumann (R) BoneCeramic gave promising results in some recent clinical studies. However, no study has evaluated the long-term survival of implants after this surgical procedure. We are conducting a prospective, observational study to evaluate the long-term implant survival after this surgical procedure in clinical practice. We present here an ad-interim report of this study, including only patients with >= 12-month follow-up after implant placement.
Methods
This prospective cohort study will last until a follow-up of 5 years will be achieved in at least 50 patients. Inclusion criteria are: age >= 18 years; presence of a maxillary partial unilateral or bilateral edentulism involving the premolar/molar areas; elective rehabilitation with oral implants; and physical capability to tolerate conventional surgical and restorative procedures. Patients are treated according to the two-stage technique and the preparation is filled with Straumann (R) BoneCeramic. Implant survival is evaluated every 3 months for the first 2 years, and then every 6 months up to 5 years.
Results
Fifteen patients are considered in this ad-interim analysis. Mean follow-up was 14.9 +/- 3.1 (range: 6-18 months). In total, three implants failed, in one single patient, 6 months after insertion. The cumulative implant survival rate was 92.5% (95% confidence interval: 83.0-100%).
Conclusions
This ad-interim analysis suggests that the elevation of the sinus floor with Straumann (R) BoneCeramic may be an effective clinical option over > 1-year follow-up. A longer term follow-up will allow a deeper characterization of these preliminary findings
To cite this article:Covani U, Orlando B, Giacomelli L, Cornelini R, Barone A.Implant survival after sinus elevation with Straumann (R) BoneCeramic in clinical practice: ad-interim results of a prospective study at a 15-month follow-up.Clin. Oral Impl. Res. 22, 2011; 481-484doi: 10.1111/j.1600-0501.2010.02042.x
Anti-IL-5 (mepolizumab) therapy does not alter IL-5 receptor alpha levels in patients with eosinophilic esophagitis
No full textRelative lack of T regulatory cells in adult eosinophilic esophagitis - no normalization after corticosteroid therapy
No full textEsophageal strictures in Eosinophilic Esophagitis: Dilation is an Effective and Safe Therapeutic Alternative after Failure of Topical Corticosteroids
No full textStrictures are a frequent complication of eosinophilic esophagitis. The efficacy and safety of topical corticosteroids and of dilation of eosinophilic esophagitis-associated strictures have not yet been thoroughly clarified. We present a retrospective analysis of 10 adult patients with eosinophilic esophagitis who had symptomatic esophageal stenosis that was unresponsive to topical corticosteroids, and who were treated using bougienage. Eight patients had one single stricture, one patient had two, and another had three strictures; mean stricture length was 2.1 cm (range 1 - 6 cm). Bougienage led to prompt symptom relief. Apart from transient postprocedural odynophagia, no severe complications occurred. During the follow-up (mean 6 months; range 2 - 11 months), all patients enjoyed sustained treatment response
Frequent sensitization to Candida albicans and profilins in adult eosinophilic esophagitis
No full textBACKGROUND:
Eosinophilic esophagitis (EoE) is often associated with atopic airway and skin diseases. More than 80% of EoE patients are sensitized to aero- and/or food allergens. Immunoglobulin (Ig)E-mediated immune responses to microbes have been reported to be deleterious in connection with atopic diseases.
AIM:
The aim of this study was to obtain a comprehensive overview about the sensitization spectrum of adult EoE patients.
METHODS:
IgE in sera of 35 patients with active EoE were analyzed for reactivity to Candida albicans, as well as to a panel of recombinant and purified natural allergen components, using a microarray.
RESULTS:
IgE sensitization to Candida albicans was found in 43% of EoE patients. More than 80% of EoE patients were sensitized to aeroallergens and 22% to food-specific allergen components, whereas 69% of the patients exhibited specific IgE to cross-reactive allergens. Among the latter, profilins were identified as most frequent IgE cross-reactive allergen components. Interestingly, dysphagia, the main symptom of adult EoE patients following rice and/or bread ingestion, was associated with sensitization to cross-reactive allergens such as profilins, pathogenesis-related (PR) 10 and lipid transfer proteins (LTP). Intolerance toward meat rarely correlated with sensitization to animal food allergens.
CONCLUSION:
Candida albicans and cross-reactive plant allergen components, in particular profilins, were identified as frequent sensitizers in adult EoE patients. Specific elimination therapies are suggested to reveal their actual roles in the pathogenesis of EoE
Status of the LHCb experiment
No full textLHCb is a second generation experiment on b physics which runs from the beginning of the LHC operation. The goals of the experiment are systematic measurements of CP violation and rare decays in the B- meson system with unprecedented precisions. By measuring CP violation in many different decay modes of B/sub d/ and B/sub s/, mesons and comparing the results with the predictions from the standard model, the experiment searches for new physics. This talk summarises the present status of the preparation and construction of the LHCb experiment. Details are found in the technical design reports of the respective subsystems. (12 refs)
- …
