The impact of nocturnal wear of the prosthesis on the oral health-related quality of life of an apneic edentulous population

Résumé Problématique : La perte de dents est l’une des maladies chroniques associées à plusieurs altérations anatomiques et fonctionnelles de la cavité buccale et des voies respiratoires supérieures. Ces changements entraînent une détérioration de la qualité de vie liée à la santé bucco-dentaire (OHRQoL), en particulier chez les personnes âgées. Les prothèses complètes permettent d’améliorer l'apparence et peuvent restaurer certaines fonctions masticatoires altérées par l’édentement, créant ainsi un impact positif sur la qualité de vie liée à la santé buccodentaire. Cependant, le port continu des prothèses dentaires pendant la nuit, peut amener des problèmes de santé buccodentaires. Toutefois, certaines études ont montré que le fait de dormir avec une prothèse dentaire avait un impact positif sur la qualité du sommeil et la qualité de la vie. Objectifs : L’objet de ce projet de maîtrise est d’étudier l’impact du port nocturne des prothèses complètes sur l’OHRQoL, chez les patients âgés édentés et souffrant d’apnée obstructive du sommeil (AOS). Méthodologie : Ce projet de maîtrise est imbriqué dans un essai clinique croisé randomisé portant sur 70 patients âgés (65 ans et plus), complètement édentés et diagnostiqués avec une AOS modérée à sévère (IAH ≥ 10). Les participants ont été assignés au hasard à l'un des deux groupes (dormant avec ou sans les prothèses dentaires dans un ordre inverse), pendant deux périodes de 30 jours. Les données sur les effets du port nocturne des prothèses dentaires sur la qualité de vie liée à la santé et la qualité de vie liée à la santé buccodentaire ont été recueillies au début et au cours des deux visites de suivi, à l’aide du questionnaire Oral Health Impact Profil (OHIP-20) et du formulaire abrégé SF-36 respectivement. L'analyse des données a été réalisée à l'aide de modèles à effets mixtes pour les mesures répétées, considérant notamment le type d'intervention (dormir avec ou sans prothèses), la séquence d’intervention et la période. Résultats: Les résultats rapportés ci-dessous sont basés sur les données recueillies auprès de 63 patients. Le score global de l’OHIP-20 était légèrement plus élevé, mais non significatif (p=0.08), chez les patients qui dormaient avec leurs prothèses que chez ceux qui dormaient sans prothèses. Les scores de toutes les sous-échelles du questionnaire OHIP-20 ont augmenté chez les patients qui dormaient avec leurs prothèses, à l’exception de l’incapacité sociale, qui a légèrement diminué, et de handicap qui est resté inchangé. Cependant, l’impact négatif significatif n’a été signalé que pour deux scores de l’OHIP-20 : psycho-inconfort (p = 0,04) et incapacité physique (p = 0,05). Les scores OHIP-20 n’ont été influencés ni par la séquence de randomisation ni par le nombre de visites, à l’exception des scores de handicap, qui ont légèrement augmenté chez les sujets assignés à dormir avec leurs prothèses dentaires au cours de la première période de cette étude. En revanche, les résultats du SF-36 ont montré une amélioration des scores moyens de toutes les sous-échelles chez les personnes dormant avec leurs prothèses, mais les seuls impacts significatifs étaient constatés sur les aspects de la fonction sociale et du changement de l’état de santé (p <0,01 et p = 0,01 respectivement). La séquence d'attribution a eu un effet significatif sur la fonction physique (p = 0,03), la douleur (p = 0,02) et le changement de santé (p = 0,02). Le nombre de visites de suivi n'a eu un impact significatif que sur le domaine de la fonction physique (p = 0,03). Conclusion : Bien que dormir avec les prothèses dentaires puisse avoir un impact négatif sur les aspects psychiques et physiques d’OHRQoL, il pourrait également avoir un impact positif sur les aspects sociaux de la fonction et des changements de santé de la HRQoL. Les résultats de la recherche de ce travail de maitrise doivent être considérés comme préliminaires car l’analyse totale des données n’est pas encore terminée.Problematic: Tooth loss is one of the chronic diseases associated with several anatomical and functional alterations in the oral cavity and the upper airway tract. These changes result in the deterioration in oral health-related quality of life (OHRQoL), particularly among the elderly. Complete dentures can enhance the appearance and restore some impaired masticatory functions, creating a positive impact on OHRQoL. However, continuous nocturnal wear of dentures may raise oral health problems. In contrast, some studies have found that the impact of sleeping with dentures is positive with regard to the quality of sleep and quality of life. Objectives: The aim of this Master’s study is to investigate the impact of sleeping with dentures on OHRQoL in edentulous elderly patients who suffer from obstructive sleep apnea (OSA). Methodology: This master research project is nested in a randomized, crossover trial study of 70 edentulous elderly patients diagnosed with moderate to severe OSA (AHI ≥10). The participants were randomly assigned to one of two groups (sleeping with or without the prosthesis in opposite order), for two periods with a 30-day interval between them. Data on the effect of nocturnal wearing of dentures on OHRQoL and health-related quality of life (HRQoL) were collected at the baseline and during the two follow-up visits, using the Oral Health Impact Profile (OHIP-20) and Short form (SF-36) questionnaires respectively. Data analysis was performed using mixed effect models appropriate for repeated measures including types of intervention (sleeping with or without dentures), sequence and visit number. Results: Results reported below are based on data collected from 63 patients. The overall OHIP-20 score was slightly higher among patients who wore their dentures while sleeping than in those who did not, but not at a significant level (p=0.08). The scores of all OHIP-20 subscales were increased among patients who slept with prosthesis, except for the social disability which slightly decreased, and the handicap remained at the same average. However, the significant negative impact was reported only for two OHIP scores: psycho-discomfort (p=0.04) and physical disability (p=0.05). OHIP-20 scores were influenced neither by the assignment sequence nor by the period, with an exception for handicap scores which slightly increased among elders assigned to sleep with dentures in the first period of this study. In contrast, SF-36 results showed an improvement in the mean scores in all subscales among the elderly when participants were sleeping with dentures, but the only significant impacts were found on social function and health change aspects (p <0.01, and p=0.01, respectively). The assignment sequence had a significant effect on physical function (p=0.03), pain (p=0.02), and health change (p=0.02). The follow-up visit number had a significant impact only on the physical function domain (p=0.03). Conclusion: While sleeping with dentures could have a negative impact on psycho-discomfort and physical discomfort aspects of OHRQoL, it could have a positive impact on the social function and health change aspects of HRQoL. The results of this Master’s research should be considered as preliminary since the total data analysis has not completed yet

Closed Weak G-Supplemented Modules

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; يُدعى المقاس M بأنه مغلق ضعيف داعم من النمط g أذا كان لكل مقاس جزئي مغلق N من M, يوجد مقاس جزئي K من M بحيث ان&nbsp; &nbsp; و &nbsp;. في هذا العمل, العديد من الخواص المختلفة للمقاسات المغلقة الضعيفة الداعمة من النمط g قد تحققت. نحن سوف نبرهن أن المقاس M هو مغلق ضعيف داعم من النمط g أذا وفقط أذا كان &nbsp;هو مقاس مغلق ضعيف داعم من النمط g&nbsp; لكل مقاس جزئي مغلق X من M. كل حد مباشر من مقاس مغلق ضعيف داعم من النمط g يكون كذلك. كل صورة غير منفردة لمقاس مغلق ضعيف داعم من النمط g تكون مغلق ضعيف داعم من النمط g. نحن عرَفنا و درسنا أيضا المقاسات التي يكون فيها كل مقاس جزئي مضاد منتهي و مغلق يمتلك مقاس جزئي ضعيف داعم من النمط g, سُميت, بالمقاسات المضادة المنتهية المغلقة الضعيفة الداعمة من النمط g.&nbsp;&nbsp; A module M &nbsp;is called closed weak g-supplemented if for any closed submodule N of M, there is a submodule K of M such that&nbsp; &nbsp; and&nbsp; &nbsp;(i.e. K is a weak g-supplement of N in M). In this work many various properties of closed weak g-supplemented modules are investigated. We will prove a module M is closed weak g-supplemented if and only if &nbsp; &nbsp;is closed weak g-supplemented for any closed submodule X of M. So, any direct summand of closed weak g-supplemented module is also closed weak g-supplemented. Every nonsingular homomorphic image of a closed weak g-supplemented module is closed weak g-supplemented. We define and study also modules, in which every cofinite closed submodule of it have weak g-supplements, namely, cofinitely closed weak g-supplemented.&nbsp;&nbsp;&nbsp; &nbsp;&nbsp

Endo SS-Coprime Modules

The purpose of this paper is to introduce and investigate the notion of endo strongly S-coprime modules, where........

Some Connections About Rad_g-lifting Modules

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ناقشنا في هذا العمل علاقات معينة بين فكرة مقاسات الرفع من النمط -والعديد من أنواع المقاسات الأخرى ذات العلاقة، وضحنا تلك العلاقات، وقدمنا معايير تجعل هذه المقاسات قابلة للمقارنة مع مقاسات الرفع من النمط -.In this work, we discussed certain relationships between the idea of -lifting modules and many other related types of modules, explained these relationships and provided criteria that make these modules comparable to -lifting modules. CONCLUSION &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; It has addressed to the concept of -lifting and other related types of modules and analyze the relations between these different kinds of modules like g-local, ⨁-g-supplemented, g-supplemented, sgrs-modules, -module, ()-modules etc. The necessary conditions have been set to achieve equivalence between them and thus obtained equivalent definitions to the -lifting definition within certain conditions

Removal of Cibacron Blue 3G-A from industrial wastewater using agricultural waste products as adsorbents

في هذا البحث، تم اختبار فاعلية المخلفات الزراعية في إزالة لون Cibacron Blue 3G-A (CCB) من مياه الصرف الصحي الملوثة لمياه &nbsp;النسيج. في هذه الدراسة ، تم استخدام) Rhamnus pits (RP)نوى النبق ( كمواد نفايات يسهل الوصول إليها كمواد مازة عن طريق الكربنة والتحفيز بقاعدة قوية (KOH) وحمض قوي (HCL) . تم تنفيذ طريقة التحفيز بشكل منهجي. تضمنت عملية الكربنة تحريض نوى النبق RP عند درجة حرارة 300 درجة مئوية ، يليها تشريب بعض العينة بحمض الهيدروكلوريك HCL (حمض قوي) وبعضها بهيدروكسيد الصوديوم KOH (قاعدة قوية) ، وأخيراً حرق العينة عند درجة حرارة 600 درجة مئوية كجزء من عملية التنشيط. نوع واحد من الممتزات لم تتم معالجته بأي نوع من المحفزات ؛ نوع آخر عولج بحمض قوي ؛ والنوع الثالث عولج بقاعدة قوية. تم استخدام صبغة (CCB) كمادة ممتزة ، حيث تم تحديد سعة الامتزاز والحد الأقصى لمعدل الامتزاز بعد تحليل المتغيرات التي تؤثر على عملية الامتزاز. أظهرت النتائج أن العينات المشبعة بـ KOH- و HCL أزالت 96.6٪ و 88.24٪ من العينة ، على التوالي ، بشكل أكثر فاعلية من عينة نوى النبق غير المعالجة ، والتي أزيلت 62.42٪ فقط. تم إجراء الامتزاز عند 30 درجة مئوية (86 درجة فهرنهايت) ، 0.05 جم / 10 مل من محلول الصبغة ، 60 دقيقة ، وتركيز 25 مجم / لتر من محلول الصبغة. تم حساب منحنيات امتصاص التوازن باستخدام نموذجين متساويين للامتصاص مستخدمين على نطاق واسع. بالنسبة لنوى النبق RP التي يتم تنشيطها بواسطة KOH ، قدم نموذج متساوي الحرارة Langmuir ملاءمة جيدة للبيانات. في هذه الدراسة ، تم المقارنة والتباين وفقًا للنماذج الحركية من الدرجة الثانية والنماذج الحركية من pesodo first order . لقد ثبت أن معدل الامتصاص يرتفع بسرعة في البداية ولكنه ينخفض تدريجياً عند الوصول إلى التوازن. عند تطبيقه على البيانات ، أظهر نموذج pesodo second order &nbsp;ملاءمة ممتازة بمستوى ثقة يبلغ 0.999.RPHCL has a porous structure with a random distribution of distinct pore diameters. In this work, the efficacy of agricultural waste was tested in removing Cibacron Blue 3G-A (CCB) colour from contaminated textile wastewater. In this study, Rhamnus pits (RP) were used as a readily accessible waste material as an adsorbent by carbonizing and impregnating it with a strong base (KOH) and a strong acid (HCL), respectively. The method of impregnation was carried out systematically. The carbonization process involved inciting the RP pits at a temperature of 300 °C, followed by impregnating some of the sample with hydrochloric acid HCL (a strong acid) and some with sodium hydroxide KOH (a strong base), and finally inciting the sample at a temperature of 600 °C as part of the activation process. One kind of adsorbent was not treated with any kind of impregnation; another type was treated with a strong acid; and a third type was treated with a strong base. (CCB) dye used as adsorbed the adsorption capacity and maximum adsorption rate were determined after variables affecting the adsorption process were analyzed. Results showed that KOH- and HCL-impregnated samples removed 96.6% and 88.24% of the sample, respectively, more effectively than the untreated control sample, which removed just 62.42%. Adsorption was performed at 30 degrees Celsius (86 degrees Fahrenheit), 0.05 g/10 ml of dye solution, 60 minutes, and a concentration of 25 mg/l of dye solution. The equilibrium adsorption curves were calculated using two widely used adsorption isotherm models. For KOH-activated RP pits, the Langmuir isotherm model offered a good fit to the data. In this study, the comparison and contrast are according to the pseudo-second-order and pseudo-first-order kinetic models for adsorption. It has been shown that the adsorption rate rapidly rises initially but gradually reduces when equilibrium is reached. When applied to the data, the pseudo-second-order model demonstrated an excellent fit with a confidence level of 0.999

Optimal design parameters for hydraulic vertical flocculation in the package surface water treatment plant

After 2003, hundreds projects were completed to provide drinking water to rural areas in most governorates in Iraq. These projects consist of the package water treatment plant, which treats surface water from the Tigris and Euphrates rivers. All the package water treatment plant contains a mechanical flocculators, which suffers from continuous faults and needs periodic maintenance and needs electric energy to operate, which leads to an increase in the cost of water production and lack of quality of water produced. In this project, the possibility of changing the type of flocculators from mechanic to hydraulic was tested for a 100 m3·h–1 package water treatment plant in the Al-Eskan water treatment project in the south of Diwaniyah city in Iraq. There are many challenges facing the design involving findings ways to improve the effi ciency of the flocculation system. Computational Fluid Dynamics (CFD) package, ANSYS Fluent 16.1 software have been used to simulate turbulent fluid flow in hydraulic flocculators for Al-Eskan package water treatmen plants (EPWTP). The flocculator simulations in ANSYS Fluent are used to obtain turbulent kinetic energy dissipation rate to determine the distance between baffles, the quantity of baffles, velocity gradient, residence time, and flocculation performance. The results obtained from ANSYS Fluent simulation are used in designing a hydraulic flocculator, so our finding can be utilized to validate the hydraulic flocculator model. The results confi rmed that the method used to design certain parameters of the tank are fairly accurate. Overall the design of the flocculation tank produced reasonable results which match expected results of hydraulic fl occulation tanks found in literature. The results of the report suggest that a height to baffl e spacing ratio of 22.5 creates intersecting energy dissipation regions that produce the greatest formation of fl ocs per reactor volume

Phosphorus Availability as Indicated by Alfalfa Response to Applied Phosphorus on Soils with Low Soil-Test Values

A field experiment was conducted at two locations in Utah, one at Erda in Tooele County and the other at Minersville in Beaver County. Each experiment was designed as a randomized block design with five treatments and four replication s for each treatment. The test crop was alfalfa. Three cuttings were taken from each location to estimate the yield. Soil samples from the first 12 inches and subsoil samples from 12-24 inches were taken to determine the available NaHCO3-P in the soils. Plant samples were taken to determine the P content of the crop. The results showed that with 5 ppm soil-test P, P content in crop was above the critical level. There was no increase in yield resulting from adding different levels of P to the soil. This conclusion suggests that the criteria used at the soil -testing laboratory at Utah Stat e University should be modified. The criteria used had heen based on samples from the first 6 inches of the soil and from previous investigations. The limit used for low P status for the soil s was 8 ppm

Thermal and pressure stability of myrosinase enzymes from black mustard (Brassica nigra L. W.D.J Koch. var. nigra), brown mustard (Brassica juncea L. Czern. var. juncea) and yellow mustard (Sinapsis alba L. Subsp Maire) seeds

This study investigates the effects of temperature and pressure on inactivation of myrosinase extracted from black, brown and yellow mustard seeds. Brown mustard had higher myrosinase activity (2.75 un/mL) than black (1.50 un/mL) and yellow mustard (0.63 un/mL). The extent of enzyme inactivation increased with pressure (600-800 MPa) and temperature (30-70 °C) for all the mustard seeds. However, at combinations of lower pressures (200-400 MPa) and high temperatures (60-80 °C), there was less inactivation. For example, application of 300 MPa and 70 °C for 10 minutes retained 20%, 80% and 65% activity in yellow, black and brown mustard, respectively, whereas the corresponding activity retentions when applying only heat (70 °C, 10min) were 0%, 59% and 35%. Thus, application of moderate pressures (200-400 MPa) can potentially be used to retain myrosinase activity needed for subsequent glucosinolate hydrolysis