Background
Predictive models and assessment tools for disease susceptibility and progression are necessary to enhance personalized medicine. The aim of this study is to assess the predictive accuracy of using the 2018 classification to predict likelihood of tooth loss.
Methods
A total of 134 patients were screened 10 years after periodontal therapy. Data were extracted from 82 patients’ records and periodontal diagnoses were assigned according to the 1999 and 2018 classifications at baseline, whereas patient‐ and tooth‐related parameters were documented at baseline and at reexamination. Statistical analysis included descriptive statistics, hurdle regression with a zero and count model as well as logistic regression.
Results
Significantly more teeth were lost during SPT in patients with Stage IV or Grade C (P < 0.05). Patients’ adherence seems to have an impact on the predictability of the 2018 classification (P < 0.001). In comparison, neither classification system alone (1999 vs 2018) showed a high predictive value for tooth loss (area under the curve [AUC] = 59.2% vs 58.2%).
Conclusion
Class III and IV/Grade C of the 2018 classification of periodontal diseases show similar predictive accuracy for tooth loss as severe cases in the former classification. Patients adherence seems to influence the prognostic value of the classification.
IPF patients under the age of 50 years have similar features and clinical course compared to older IPF patients. These patients should be diagnosed by adopting a multidisciplinary team approach, potentially benefitting from earlier intervention with effective antifibrotic therapy.
Even though the market and development for concrete screws has been increasingly rising in recent years, the load transfer mechanism of concrete screws has not yet been fully investigated. Therefore, different tests of concrete screws made of galvanized and stainless steel were performed in concrete C20/25 and C50/60. The main aim is to measure the strain along the embedment depth. This will be achieved by using strain gauges that get placed in a centrically drilled borehole through the concrete screw. To get a comparison to the mechanism of the screws the same process will be executed in threaded rods used as a part of bonded anchors. Due to the fact that the threaded cuts of concrete screws have geometrical similarities to bonded anchors, it was examined if the load transfer of both fasteners is related and may be compared. The results of the testing have shown that the load transfer mechanism of both fastener types is similar in low-strength concrete showing a concrete cone failure. In high strength concrete due to the mainly occurring steel failure the maximum measured strains at the maximum load step are not comparable. However, at lower load steps where the steel does not exceed the yield strength the results show a similar load transfer mechanism, too.
Dunkle Kirchenräume der Romanik sind geheimnisvoll, die heutige Erwartung an den Kirchenraum erfordert jedoch ein einladendes sakrales Licht. Will der Geist sich weiten, unterstützt ihn dabei eine Gestaltung, die für individuelle Empfindungen Raum lässt. Der Beitrag beschreibt die räumliche Neukonzeption der katholischen Kirche St. Andreas in Weinstadt-Endersbach, erläutert das Farb- und Materialkonzept sowie den Entwurf der liturgischen Ausstattungselemente.
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