Objective: This study was performed to determine the feasibility of digital virtual positioning of braces in clinical applications.
Methods: We determined the positions of brackets in 28 teeth of 15 cases according to positioning methods that use bracket height or root information. Final status was generated by OrthoRx software. Treatment results were assessed with American board of orthodontics objective grading system (ABO-OGS).
Results: The deduction points in the marginal ridge height were significantly decreased after treatment using the two methods (P<0.05). However, no statistically significant difference was found in the deduction points in the marginal ridge height between the two methods (P>0.05). No improvement was found in the deduction points in root parallelism with both methods. No statistical significance was found in the deduction points in root parallelism before and after treatments using both methods. The deduction points in alignment and the three scoring components were significantly decreased after treatment using the two positioning methods. In addition, statistically significant differences were found in the deduction points in alignment between two methods (P<0.05).
Conclusion: By using OrthoRx software, we achieved effective therapeutic treatment in reconstructing three-dimensional digital modes using two different bracket-positioning methods. The positioning method that used root information is more accurate compared with the bracket height positioning method. This study provides an experimental basis for bracket accuracy in the mouth.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7030329 | PMC |
http://dx.doi.org/10.7518/hxkq.2015.05.013 | DOI Listing |
BMC Geriatr
December 2024
Department of Health and Sport Sciences, Technical University of Munich, Georg-Brauchle-Ring 62, 80992, Munich, Germany.
Background: Everyday life in residential long-term care is widely portrayed as boring. However, empirical evidence on this topic remains limited, particularly for the vulnerable group of people living with dementia. A better understanding of everyday life and the associated experiences of boredom could facilitate the development of practical strategies to reduce boredom in this target group.
View Article and Find Full Text PDFStud Hist Philos Sci
December 2024
Department of Mathematics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany. Electronic address:
This paper combines mathematical, philosophical, and historical analyses in a comprehensive investigation of the dynamical foundations of the formalism of orthodox quantum mechanics. The results obtained include: (i) A deduction of the canonical commutation relations (CCR) from the tenets of Matrix Mechanics; (ii) A discussion of the meaning of Schrödinger's first derivation of the wave equation that not only improves on Joas and Lehner's 2009 investigation on the subject, but also demonstrates that the CCR follow of necessity from Schrödinger's first derivation of the wave equation, thus correcting the common misconception that the CCR were only posited by Schrödinger to pursue equivalence with Matrix Mechanics; (iii) A discussion of the mathematical facts and requirements involved in the equivalence of Matrix and Wave Mechanics that improves on F. A.
View Article and Find Full Text PDFMalar J
December 2024
Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil.
Background: To eliminate malaria by 2035, Brazil must address Plasmodium vivax. Previously, first-line treatment was chloroquine plus 7-day primaquine (PQ) without glucose-6-phosphate dehydrogenase (G6PD) deficiency testing. In 2021, point-of-care quantitative G6PD testing and single-dose tafenoquine (TQ) were piloted in two municipalities.
View Article and Find Full Text PDFBMC Nurs
December 2024
Department of Community Health and Clinical Sciences, Njala University, Bo, Sierra Leone.
Background: Bullying can have profound negative effects on nursing students who often contend with psychological trauma because of repeated acts of mistreatment. This study was done to explore the effects of bullying behaviours among nursing students with above average and below average academic performance in two nursing schools in Sierra Leone.
Methods: A qualitative exploratory study involved six rounds of data collection and analysis over a one month period.
SAGE Open Nurs
December 2024
School of Nursing and Midwifery, Queen's University Belfast, Belfast, Northern Ireland.
Introduction: Supporting persons living with advanced dementia in long-term care (LTC) homes requires strong collaborative partnerships between staff, family members, and residents. Yet, relational tensions-such as differing expectations around care decisions-can inhibit the implementation of collaborative partnerships at this critical point in the trajectory of care.
Objective: This study aims to explore the emotional experiences of families and staff during shared decision-making processes for individuals with advanced dementia in LTC.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!