Background: This clinical trial aims to evaluate the color changes of direct resin composite veneer (DCV) restorations based on spectrophotometric analysis of 4 different types of resin composites between the baseline immediately after polishing and after one year of follow-up. Materials and methods: 28 patients were assessed for eligibility for participation, aged between 18 and 38 years old, who indicated for DCV restorations in anterior maxillary teeth were considered for participation in this study. In total, 25 patients who met the inclusion criteria were selected (6 males and 19 females, mean age: 20.9 at the time of restoration placement), and 3 patients were excluded. Participants were divided into four groups based on the type of composite resin used for restorations. Group 1 nanohybrid Ips Empress direct (Ivoclar Vivadent)](IPS) (13 restorations/6 patients), group 2 microfilled [Essentia (GC cooperation Japan)](ES) (14 restorations / 7 patients), group 3 supra-nano filled [ Estelite ∑ Quick (Tokuyama, Tokyo, Japan)](EQ) (17 restorations / 7 patients) and group 4 nanofill [Filtek Ultimate (3M ESPE)](FU) (13 restorations / 5 patients). Baseline Color measurements were performed with a spectrophotometer immediately after finishing and polishing (baseline), and after one year of recall, color change (ΔE) from baseline values and after one year of follow-up of DCVs were calculated according to CIELab color coordinates. For this, a silicone mold was fabricated for each patient and used as a guide for each measurement to standardize the site of the readings. Statistical analysis of the data was applied using the Kruskal-Wallis test with Dunn-Bonferroni posthoc test after controlling the distribution of data in terms of normality with the Shapiro Wilk test. Results: At the end of one year,25 participants(57restorations) were followed up. The mean ΔE of IPS, EQ, and FU composites were higher than the ES composite resin, but there was no statically significant difference between all types of composites (P> 0.05). There was no statistically significant difference in the mean ΔL* between any types of composite resin (p> 0.05). There was a significant change in Δa* and Δb* after a one-year recall for all the types of DCV restorations (p < 0.05). Conclusion: After one year of follow-up, the spectrophotometer measurements of direct resin composite veneer restorations, it was concluded no difference between the mean ΔE of ES, IPS, FU, and EQ resin composite. ES (Microfilled hybrid) showed a lower mean ΔE value compared to the other groups. All groups of resin composite showed color changes within clinically acceptable levels after a one-year follow-up.
This research deals with a disease of the diseases our Muslim society, which works in the
body operate deadly epidemics in the bodies and of bodies, but it is extravagant; has spread
and rampant in our uncle everything which threatens significant damage in this life and the
afterlife, as well as that it shows that Alasirafla limited to extravagant in wasting money and
with this blessing should not have, and not be used as created him .
Excessive linked to all aspects of life, physical and moral it has many pictures and various
forms, came at the forefront of research and five sections:
The first topic: the meaning of truth and extravagant.
The second topic: Photos extravagant reprehensible contained in the Koran.<
The present study aims to shed light on psychological intentions in some prophetic hadiths and present practical models and realistic applications that reveal the aim behind Prophet Mohammed’s actions and speech. This study relied on a descriptive and deductive approach. It included three demands. The first demand provided a glimpse of the theoretical and conceptual framework of psychological intentions and their most important classifications. The second request tackled the history of Makassed thought in the Prophet’s hadiths. The third requirement dealt with the presentation of the physical, mental, and psychological intentions in Sunnah. The results revealed that The Islamic religion seeks to achieve happiness for the human being
... Show MoreThe aim of this research is to find approaches between the communicative process and the teaching of art education. Postgraduate/Masters studies for the academic year 2022-2023.
In the light of this tool, the researcher reached a number of results, most notably: The art education teacher performs his communicative role correctly, as well as his ability to use verbal and non-verbal expressions and positive reinforcement clearly for the benefit of his students, and stimulates the largest number of their senses
This research concerned with studying act in contemporary painting , based on the role played by the act in achieving the structure of plastic art work artistically and aesthetically . The study consisted of three chapters: In the first one (the methodological framework) the problem has been displayed and the research aimed to detect : 1. The concept of the act in the structure of contemporary painting . 2. The impact of the act in the formation of the artistic style . as well as putting its boundaries represented in artistic movements : Abstract Expressionism , Pop Art and Conceptual Art within the period between 1945 and until the end of the seventh decade of the twentieth century. The Chapter II (theoretical framework) consisted of th
... Show MoreBackground: Shock is a common clinical state, we face chocked patients in causality, surgical and gynecological specialties like stab wounds, road traffic accidents, placenta preavia, placenta accrete, placenta pericreta, ectopic pregnancy, perforated viscus etc. All such patients undergo surgical exploration and majority of them are shifted to ICU to complete monitoring and support. High percent of them they develop acute kidney injury intra and postoperatively and carry high mortality rate because of not so good nursing care in ICU in Iraq.
Objective: to clarify that Furosemide can protect kidney function during shock and reduce ICU admission and mortality rate.
Method: 100 shocked patient were enrolled in t
... Show MoreSchemata are the underlying connections that allow new experience and information to be aligned with previous knowledge. When one reads a text he usually uses all his levels of schemata. Schemata enable us to make sense of what is perceived and experienced in the world.
In poetry, readers usually examine carefully and deeply what they are reading in comparison with other sorts of discourse. Coherence is achieved when a reader perceives connections among schemata. It is a connection between linguistic and textual features of the text, and reader's mental expectations as well as stored knowledge of the world. This paper discusses the role of schematic correlation in poetry, and the effect of different schematic background and diffe
... Show MoreWhen Romanticism had passed since its appearance at the end of the eighteenth century, it seemed that this important intellectual and philosophical development had been absent but not really lost. Romanticism remained in the poems of poets, philosophers and writers even after they had escaped cultural life in general. If it is difficult to itemize all the principles of romance, the apparent is the assertion of individualism and the love of autism with nature and its potential with its mysteries as well as the glorification of emotion, compared to the mental orientation of the writers in the seventeenth century in their classical approach. The language is the most important to what the Romans have proven in their poetry and their artistic wo
... Show MoreEnvy is a heart disease, a serious disease and a great evil that hurts its owner before it hurts others. The first crime that occurred in the creation was because of the envy between Abel and Cain.
Medical image security is possible using digital watermarking techniques. Important information is included in a host medical image in order to provide integrity, consistency, and authentication in the healthcare information system. This paper introduces a proposed method for embedding invisible watermarking in the 3D medical image. The cover medical image used is DICOM which consists of a number of slices, each one representing a sense, firstly must separate the ROI (Region of Interest) and NROI (Not Region Of Interest) for each slice, the separation process performed by the particular person who selected by hand the ROI. The embedding process is based on a key generated from Arnold's chaotic map used as the position of a pixel in
... Show MoreVisual discourse in cinema and television is an expressive medium that carries its audio and visual elements and is effective in influencing the memory of the recipient, according to multiple patterns of forms and representations aimed at persuasion, influence, entertainment, enjoyment and knowledge. This speech will not pass by the recipient without difficulty, as the multiplicity of forms and techniques of image presentation and the diversity of contents derived from different beliefs, concepts, ideas and perceptions may sometimes reach intersections and conflicts, which is reflected in the form of the screen and the theory of television. This motivates us to know the ways in which audio-visual discourse is produced on television, whic
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