Open Access-Zeitschriften an der WWU Münster (Westfälische Wilhelms-Universität)
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Diana
No full textThe Story of a character who meets the goddess Diana, an encounter that profoundly transforms the person in question
Success Rates of Different Traction Methods for Impacted Canines
No full textAIM: To compare the clinical success rates, biomechanical efficiency and biological safety of orthodontic traction methods for impacted maxillary canines by synthesising available clinical and finite element evidence to inform optimal treatment selection.
METHODS: A systematic literature review of PubMed was performed for clinical and finite element method (FEM)-based studies published from 2000 to 2025. Inclusion criteria required quantitative data on eruption success, force application, root resorption and treatment duration. Sixteen studies met the criteria and were analysed using thematic synthesis and comparative tables.
RESULTS: Traction methods using temporary anchorage devices (TADs), TMA cantilevers, corticotomy-assisted protocols and double-wire techniques demonstrated consistently high success rates (up to 100\%) and superior biomechanical control. These approaches were associated with reduced root resorption, improved anchorage stability and shorter treatment duration. Conversely, Kilroy springs and clear aligners exhibited biomechanical limitations and generated elevated stress on adjacent teeth. Patient factors, notably age, impaction depth and compliance, were significant predictors of outcome. FEM studies supported the mechanical advantages of TAD-based and corticotomy-assisted strategies when combined with three-dimensional planning.
CONCLUSION: Individually tailored traction strategies informed by CBCT imaging and biomechanical planning achieve the most favourable outcomes. TAD-based systems and corticotomy-assisted approaches are particularly effective in adult or complex cases. Further randomised controlled trials using standardised force systems and outcome metrics are needed to strengthen clinical guidelines for impacted canine management
Grøn, Arne: Thinking with Kierkegaard Existential Philosophy, Phenomenology, and Ethics, hg. v. Bjarke Mørkøre Stigel Hansen / René Rosfort
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Theological Anthropology in Interreligious Perspective, hg. v. Lejla Demiri / Mujadad Zaman / Tim Winter
Full text linkVon bierbrauenden Mönchen und kriegerischen Nonnen. Klöster und Klerus in analogen und digitalen Spielen, hg. v. Lukas Boch / Anna Klara Falke / Yvonne Püttmann
Full text linkComparative Analysis of Durability and Failure Rates in Feldspathic, Lithium Disilicate, and Alumina Veneers - Long-term Results
Full text linkAIM: The objective of this study is to compare the durability and failure rates of feldspathic, lithium disilicate, and alumina veneers following treatment.
METHODS: A comprehensive search of the dental literature was conducted via the Pubmed database. From the selected studies, survival rates of feldspathic, lithium disilicate, and alumina veneers were extracted, along with failure rates of fracture, chipping, debonding, marginal adaptation, discoloration, staining, and secondary caries.
RESULTS: The average observation period was 10 years. The estimated survival rates were 95.3% for feldspathic, 95% for lithium disilicate, and 93% for alumina. The analysis of failure rates revealed the following: fractures occurred at rates ranging from 0.9% over 3.4 years to 5% after 11 years for feldspathic veneers. Lithium disilicate showed an average fracture rate of 3.6% over 9.8 years, whereas alumina had a 6.6% fracture rate over the same period. Chipping was higher for alumina veneers (16.5%) compared to feldspathic (4%) and lithium disilicate (3.6%). All three types of veneers experienced low debonding rates (1-2%). Marginal adaptation issues were more prevalent in alumina and feldspathic veneers than in lithium disilicate. Marginal discoloration was higher in alumina veneers compared to other types. Staining and secondary caries were observed at low average percentages across all veneer types.
CONCLUSION: Feldspathic, lithium disilicate, and alumina veneers exhibit high survival rates and durability. The most frequent failures are fractures, chipping, and marginal discoloration, while debonding, staining, and secondary caries are rare complications