K

Klaus, Peter; Krieger, Winfried

doi:10.1007/978-3-663-10125-3_11

Cited by 4 publications

(2 citation statements)

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“…16 The two types of bracket exhibited statistical differences in counts of 8 periodontal pathogen species: metallic bracket showed significant increased levels of T. denticola, A. actinomycetemcomitans, F. nucleatum, S. anginosus and E. nodatum, while in ceramic ones E. corrodens, Capnocytophaga, Selenomonas noxia were most increased species. 17 The consistent quantitative and qualitative changes in the plaque one month after the start of orthodontic treatment were confirmed by a systematic review; 12 different orthodontic appliances tended indiscriminately to alter the oral microbiota during treatment, but fixed appliances reported a greater and significant cariogenic and periodontal pathogen effect than removable appliances. In this situation, Müller et al, concluded that reversibility of periodontal changes and permanence of enamel demineralization and white spots suggesting the use of antibacterial orthodontic bonding systems as an adjunct in maintenance of proper dental health in orthodontic patients.…”

Section: Introductionmentioning

confidence: 77%

“…18,20 Brackets bonding alter the ecology of the oral cavity, by the collection of biofilm at retentive areas; complexity of the orthodontic appliances represents difficulty to perform proper tooth cleaning by patients. 17,19 This study was carried out longitudinally on a group of 28 patients indicated to have orthodontic treatment. Their oral hygiene status was evaluated clinically and radiographically prior to treatment initiation as well as after treatment completion.…”

Section: Discussionmentioning

confidence: 99%

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Longitudinal Evaluation of Oral Health Among Orthodontic Patients Prior Treatment, During Treatment and Post-Treatment

Abozaid

Amer²

2021

Al-Azhar Assiut Dental Journal

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Aim: to evaluate oral health status among orthodontic patients: before, during, post treatment completion. Subjects & methods: Twenty-eight patients were selected from Outpatient clinics seeking Orthodontic treatment, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt. A self-administrated questionnaire was prepared covering oral hygiene practice, oral hygiene cleaning aids and previous oral prophylaxis. Oral health status of each patient was assessed using: Gingival bleeding index (GBI), Plaque index (PI), Oral Hygiene Index (OHI-S) which performed for each patient 3; prior to, during and after orthodontic treatment termination. Measurement of probing pocket depth (PPD) and radiographic examination were done before treatment and 3 months following treatment termination. Results: No significant difference was observed between mean PI & GBI recorded before orthodontic treatment(T1) and that measured three months (T4) following treatment completion but there were significant differences between these measurements during treatment with both before and after treatment; no significant difference between males and females. PPD recorded no differences between any evaluation times. OHI-S recorded higher scores during treatment period with statistically significant difference when compared with recorded scores initially; however, it did not differ significantly with that of at after 3 from orthodontic termination. Conclusion: Dental plaque accumulation among orthodontic patients can aid in development of gingival and dental effects, as it seems likely that orthodontic appliances have potentiality to increase oral microbial population. Orthodontic patients should be monitored and motivated for proper oral hygiene to avoid risk of new caries and periodontal diseases.

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Section: Introductionmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Longitudinal Evaluation of Oral Health Among Orthodontic Patients Prior Treatment, During Treatment and Post-Treatment

Abozaid

Amer²

2021

Al-Azhar Assiut Dental Journal

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Characterisation of the bonding zone of co‐extruded aluminium‐titanium‐compounds

Striewe¹,

Grittner²,

Hehl

et al. 2012

Materialwissenschaft Werkst

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The combination of different metallic materials enables the design of lightweight structures with tailor‐made properties at global as well as local scale and offers great potential for advanced solutions especially for the aircraft and automobile sector. However, after conventional fusion joining, e. g. after laser beam welding, heat affected zones, porosity or grain growth may occur and impair the local properties. In contrast, by solid‐state joining techniques like co‐extrusion these disadvantages can be avoided. Therefore co‐extrusion exhibits an attractive solution for long products combining aluminium and titanium based alloys. Current investigations have been focused on the co‐extrusion of aluminium and titanium, where titanium is the reinforcing element that is inserted in aluminium profiles. In the context of a current research project the formation of the intermetallic layer and the mechanical properties were investigated in detail. In addition to that the influence on the intermetallic layer and the mechanical properties on heat treatment were investigated. The mechanical properties were determined by tensile tests. The intermetallic layers were analysed with light optical microscope, scanning electron microscope and electron probe micro analysis. During the co‐extruding an intermetallic layer with a thickness of 1 μm to 3 μm arises in the bonding zone between aluminium and titanium partner. Alloying elements from the aluminium alloy enrich in this layer. A subsequent heat treatment leads to an age hardening of the aluminium, however, it does not affect the layer thickness. The tensile tests specimen show different failure locations. The heat treatment leads to increased tensile strength values, but also to a decreased yield strength level.

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Die Stadt Lucca

Höhn¹

2004

Heine-Handbuch

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K

Cited by 4 publications

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Longitudinal Evaluation of Oral Health Among Orthodontic Patients Prior Treatment, During Treatment and Post-Treatment

Longitudinal Evaluation of Oral Health Among Orthodontic Patients Prior Treatment, During Treatment and Post-Treatment

Characterisation of the bonding zone of co‐extruded aluminium‐titanium‐compounds

Die Stadt Lucca

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