Mastering Composite Artistry to Create Anterior Masterpieces: Step-by-Step Approaches for Anterior Direct Restorative Challenges, with Newton Fahl, Jr., DDS
Techniques of direct composite restorationMrinaliniDr
Techniques of the direct composite restoration. Includes different instruments, matrix system, wedges, bevel, etching, bonding, and placement of composite along with finishing and polishing and clinical management
Mastering Composite Artistry to Create Anterior Masterpieces: Step-by-Step Approaches for Anterior Direct Restorative Challenges, with Newton Fahl, Jr., DDS
Techniques of direct composite restorationMrinaliniDr
Techniques of the direct composite restoration. Includes different instruments, matrix system, wedges, bevel, etching, bonding, and placement of composite along with finishing and polishing and clinical management
Major challenges in cosmetic dentistry are to accomplish appropriate and satisfactory reproduction of natural shade of teeth.1
The kind of shade guide, individual ability to choose shades and conditions the choice is made under, all have influence on reliability and accuracy of the procedure.
Shade selection in dental practice is an important but difficult task.
Dentists are challenged to satisfy the aesthetic requirement of patients when they select the shades for fabrication of prosthesis. Most dentists are usually not trained for shade selection.2
Major challenges in cosmetic dentistry are to accomplish appropriate and satisfactory reproduction of natural shade of teeth.1
The kind of shade guide, individual ability to choose shades and conditions the choice is made under, all have influence on reliability and accuracy of the procedure.
Shade selection in dental practice is an important but difficult task.
Dentists are challenged to satisfy the aesthetic requirement of patients when they select the shades for fabrication of prosthesis. Most dentists are usually not trained for shade selection.2
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
11. The tooth is compose of two layers : Enamel and
Dentine
Dentine is opaque while the Enamel is
translucent
And according to these we have three type of
composite:
Enamel , Universal dentine and Opaque dentine.
Enamel trans Dentin-universalMedium
opacity
Opaque-dentin High
opacity
12. The layering system in composite
Two layer of
composite
Enamel trans
As deep layer
Final
layer
Three layer system composite
Enamel trans
As middle layer
Final
layer
Opaque-dentin High
opacity
As deep layer
14. Restoration of CL III
Class III- Smooth surface, involves proximal
surface of anterior tooth.
Clinical Technique for Class III
Direct Composite Restoration
- Cavity preparation
- Isolation
- Etching
- Bonding
- Composite application
- Finishing and polishing
15. Cl III Cavity Preparation
1-Conventional Class III Tooth Preparation
primary indication for this type of Class III preparation is for the restoration of root surfaces,
preparation the portion on the root surface that has no enamel.
Box-like design
placement of a retention groove (if necessary)
16. Cl III Cavity Preparation
2-Beveled conventional Class III Tooth Preparation
The beveled conventional tooth preparation for composite
restorations is indicated primarily for replacing an existing defective
restoration in the crown portion of the tooth.
3-Modified Class III tooth Preparation
A modified tooth preparation is the most used type of
Class III tooth preparation. It is indicated for small and
moderate lesions or faults and is designed to be as
conservative as possible
The preparation design appears to be "scooped" or
concave, the cavosurface margins in a beveled
configuration
17. According to studies
Beveling the enamel margin has benefits as well. It
increases the surface area for retention, improves
esthetics, and enhances the marginal seal
Soliman S, Preidl R, Karl S, Hofmann N,
Krastl G, Klaiber B. Influence of cavity
margin design and restorative material on
marginal quality and seal of extended class II
resin composite restorations in vitro. J Adhes
Dent. 2016 Jan 1;18(1):7-16.
The interface between the composite restoration material and
tooth structure showed maximum tensile stresses during
simulated occlusal forces when tooth was prepared without the
bevel. This could potentially lead to bond failure between resin
composite and tooth structure. Whereas by using the bevel the
tensile stresses were eliminated in the tooth structure dental
material interface.
Apel Z, Vafaeian B, Apel DB, Hussain A.
Occlusal stresses in beveled versus non-
beveled tooth preparation. Biomedical
Engineering Advances. 2021 Dec
1;2:100010.
22. To get the best anatomical fit to the
proximal area, the matrix can be
modified.
23.
24. A flowable composite is placed
in a thin layer and we press the
matrix with the finger on the
buccal side before light-curing.
Then, a small amount of enamel
composite is placed to restore the
proximal wall.
25. Then the rest of the cavity can be filled.
Although, in this case, only an enamel shade
was used, a body material can be very useful
for this kind of cavities
26. Next we go with the centrals. For a good
management of the space between the
centrals, two matrices are placed at the same
time. The position is very important in order
to create a restoration as close as possible to
the natural shape of the proximal area.
The first central was restored
starting with enamel as
composite. Also a body
material could have worked
very nicely.
27. Both matrices were removed to finish the
first restoration. At this stage finishing of the
first restoration is better than doing it at the
end, because we have a plenty of room and
also to manage the proximal shape properly.
The proximal is finished. If the proximal area
of the neighboring tooth is well designed,
creating the contact point and fitting the
matrix will be easier.
30. Cl III Cavity Preparation
Case 2
Unica is the simple and ideal matrix for anterior
restorations such as class III, IV, V, direct
stratification composite veneers, and shape
modifications.
31.
32.
33.
34.
35.
36.
37.
38. Restoration of CL IV
Class IV tooth preparation is indicated for
restoring proximal areas that also include the
incisal surface of an anterior tooth.
1-Beveled Conventional Class IV Tooth Preparation:
The beveled conventional Class IV tooth preparation is
indicated for restoring large Class IV areas
2-Modified Class IV Tooth Preparation:
The modified Class IV preparation for composite is
indicated for small or moderate Class IV lesions or
traumatic defects.
Clinical Technique for
Class III Direct
Composite Restoration
- Cavity preparation
- Isolation
- Etching
- Bonding
- Composite application
- Finishing and polishing
73. Restoration of CL V
Class V tooth preparations, by definition, are in the
gingival one third of the facial and lingual tooth
surfaces.
Conventional Class V tooth preparation:
A lesion entirely on root surface.
Beveled Conventional Class V Tooth reparation:
The beveled conventional Class V tooth preparation
ha margins and is indicated either for: (1) The
replacement of defective Class V restoration or (2)
For a large, new carious lesion
Modified Class V retention form Tooth Preparation:
The modified Class V tooth preparation is indicated
for the restoration of small and moderate Class V
lesions or defects.