38,644 research outputs found
Effects of active reminders and motivational techniques on oral hygiene and gingival health in orthodontic patients: a randomized clinical trial
Purpose: To compare repeated oral hygiene instructions and motivation to text message reminders in improving oral hygiene compliance
Methods: For this prospective, randomized controlled clinical trial, 60 patients were assigned to one of four groups. Group 1 served as a control. Group 2 received weekly text message for oral hygiene. Group 3 received in-person oral hygiene instructions at each visit. Group 4 received both text messages and in person oral hygiene instructions. Oral hygiene was measured with Bleeding Index (BI), Modified Gingival Index (MGI), and Plaque Index (PI). Baseline measurements were obtained at the day of bonding (T0) and then at the subsequent 3 adjustment visits (T1, T2, T3).
Results: Repeated measures ANOVA was used to determine the effect of the intervention groups on the change in oral hygiene across the visits. The average age was 15 and 43% were male. Based on the data from 242 total visits, intervention group was not associated with a significant change in plaque index (p=0.26), modified gingival index (p=0.78), or bleeding index (p=0.12).
Conclusions: Patients who presented with good oral hygiene initially were able to maintain it during the first four months of treatment regardless of the intervention. Practitioners should highly consider a patient’s pretreatment oral hygiene status before starting orthodontic treatment
Dirac Coupled-channel Analyses of Polarized Proton Scatterings to the 2 Gamma Vibrational Band in Mg and Mg
Dirac coupled channel calculations are performed phenomenologically for the
high-lying excited states that belong to the 2 gamma vibrational band at
the 800-MeV polarized proton inelastic scatterings from the s-d shell nuclei,
Mg and Mg. Optical potential model is used and scalar and
time-like vector potentials are considered as direct potentials. First-order
vibrational collective models are used to obtain the transition optical
potentials in order to accommodate the high-lying excited vibrational
collective states. The complicated Dirac coupled channel equations are solved
phenomenologically to reproduce the differential cross section and analyzing
power data by varying the optical potential and deformation parameters.
It is found that the relativistic Dirac coupled channel calculation could
describe the high-lying excited states of the 2 gamma vibrational band at
the 800-MeV polarized proton inelastic scatterings from s-d shell nuclei
Mg and Mg reasonably well, showing better agreement with the
experimental data compared to the results obtained from the nonrelativistic
calculations. Calculated deformation parameters for the excited states are
analyzed and compared with those of nonrelativistic calculations.Comment: 13pages, 6 figures. arXiv admin note: text overlap with
arXiv:1501.00650, arXiv:1407.5441, arXiv:1511.0172
Conserved system with limited number of entities obeying non-Maxwellian, non-Gaussian and non-chi-square distributions
We demonstrate that the most probable state of a conserved system with
limited number of entities is the state where non-Maxwellian, non-Gaussian and
non-chi-square distributions govern. We have used the following setup of a
thought experiment where a conserved system consists of limited number of
entities or molecules. We have verified the mathematical derivation correctly
predict the results obtained by computer simulations. The derived distributions
approach the Maxwellian and the chi-square distributions as the number of
entities approaches infinity. The derived distributions will have an important
role in the fields of medical research where the number of entities in the
system of interest is limited. Especially, the non-chi-square distribution can
be interpreted by an asset distribution achieved after a repetitive game where
an arbitrary portion of one's asset is transferred to other arbitrary entity
among a number of entities whose abilities are equal.Comment: 13 pages, 6 figure
Preaching the presence of God: a homiletic from an Asian American perspective
Kim, Eunjoo Mary. Preaching the presence of God: a homiletic from an Asian American perspective. Valley Forge: Judson Press, 1999
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