this contains the steps for the class 1 cavity preparation for amalgam in detail. also contains the difference between composite and amalgam cavity preparation.
this contains the steps for the class 1 cavity preparation for amalgam in detail. also contains the difference between composite and amalgam cavity preparation.
A number of theories have been put forward for impressions. each having its own advantage and disadvantage.
Different spacers guide and aid in in making the desired impression with adequate pressure in the desired region of the arch in maxilla and mandible. different materials are used for spacers depending on the need.
Bevels and flares are very important components of resin restoration procedure. This presentation focuses on bevels and flares in restorative procedure.
An introductory and simple guide assembled by dental students and reviewed by Dr. Hasannin Al-Namel. our seminar about impression trays used in prosthodontics
A number of theories have been put forward for impressions. each having its own advantage and disadvantage.
Different spacers guide and aid in in making the desired impression with adequate pressure in the desired region of the arch in maxilla and mandible. different materials are used for spacers depending on the need.
Bevels and flares are very important components of resin restoration procedure. This presentation focuses on bevels and flares in restorative procedure.
An introductory and simple guide assembled by dental students and reviewed by Dr. Hasannin Al-Namel. our seminar about impression trays used in prosthodontics
Techniques of dental impression making/ dental education in indiaIndian dental academy
Indian Dental Academy: will be one of the most relevant and exciting
training center with best faculty and flexible training programs
for dental professionals who wish to advance in their dental
practice,Offers certified courses in Dental
implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic
Dentistry, Periodontics and General Dentistry.
this powerpoint slide show is about the process by which a dentist can maintain an acceptable and ideal first impression of the edentulous patient in order to start the process of making dentures.
Gypsum products-a topic of dental materials for dental students....
lots of knowledge...includes classification,uses,manufacturing processes etc.
COURTESY: My college friends....
Title: Notes on Engineering Practice
Engineering practice encompasses a broad spectrum of activities, ranging from conceptualization and design to implementation and maintenance. These notes delve into various aspects of engineering practice, highlighting key principles, methodologies, and challenges faced by engineers in their professional endeavors.
1. **Design Process**:
- Engineering practice often begins with problem identification and requirement analysis. This stage involves understanding client needs, constraints, and project objectives.
- Following requirement analysis, engineers proceed to conceptualize solutions through brainstorming, research, and feasibility studies.
- The design phase involves translating conceptual ideas into detailed plans, employing tools such as CAD software, simulations, and prototypes to refine designs.
2. **Collaboration and Communication**:
- Effective communication is paramount in engineering practice, facilitating collaboration among multidisciplinary teams, clients, and stakeholders.
- Engineers must convey technical information clearly and concisely, utilizing visual aids, reports, and presentations to communicate complex concepts to diverse audiences.
3. **Ethical Considerations**:
- Engineering practice is guided by ethical principles that prioritize safety, sustainability, and social responsibility.
- Engineers must adhere to codes of conduct, regulations, and standards to ensure the integrity and quality of their work, considering the potential impacts on society and the environment.
4. **Project Management**:
- Project management skills are essential for overseeing engineering projects, including budgeting, scheduling, resource allocation, and risk management.
- Effective project management entails setting realistic goals, monitoring progress, and adapting to changing circumstances to ensure project success.
5. **Innovation and Continuous Learning**:
- Engineering practice thrives on innovation, fostering creativity and ingenuity to develop novel solutions to complex problems.
- Engineers must embrace lifelong learning, staying abreast of advancements in technology, techniques, and best practices to remain competitive in a rapidly evolving field.
6. **Quality Assurance and Testing**:
- Quality assurance processes are integral to engineering practice, ensuring that products and systems meet specified standards and requirements.
- Testing and validation procedures are conducted throughout the development lifecycle to identify and rectify defects, minimizing risks and optimizing performance.
7. **Sustainability and Environmental Impact**:
- Engineers play a crucial role in promoting sustainability by designing environmentally friendly solutions, minimizing resource consumption, and mitigating pollution and waste.
- Consideration of lifecycle assessments and eco-design principles is essential to minimize the environmental footprint of engineering pro
A User's guide to corrugated packaging from paper to carton styles to printing and graphic options for corrugated buyers, product designers, and packaging supervisors
6 points about ejector pins help your injection molding work increase 50%!JasmineHL
What is the function of the ejector pin?
Ejector pins help safely remove parts from molds after they have been made. Here are some tips on how to properly locate and use those pins. Ejector pins are the “bouncers” of the injection molding world. They let technicians apply a force to eject a part from the mold, and, in some cases, can leave marks.
A custom made device prepared for a particular patient which is used to confine and control an impression material making an impression.
It makes on the cast obtained from primary impression.
It is used for making final impression.
Edentulous ridge shows variations in shape and size.
It shows the type of impression technique
1, Selective pressure technique
2, Minimal pressure technique
A cyst is an epithelium-lined sac containing fluid or semisolid material. In the formation of a cyst, the epithelial cells first proliferate and later undergo degeneration and liquefaction. The liquefied material exerts equal pressure on the walls of the cyst from within. Cysts grow by expansion and thus displace the adjacent teeth by pressure. May can produce expansion of the cortical bone. On a radiograph, the radiolucency of a cyst is usually bordered by a radiopaque periphery of dense sclerotic bone. The radiolucency may be unilocular or multilocular. Odontogenic cysts are those which arise from the epithelium associated with the development of teeth. The source of epithelium is from the enamel organ, the reduced enamel epithelium, the cell rests of Malassez or the remnants of the dental lamina.
2. Impression tray
• It is a device used to carry & control impression
material while making an impression
stock tray
• The tray we use in the primary impression
4. 1. The tray should be rigid and strong but not
too thick.
2. The tray should simulate the finished denture
in size and shape.
3. The border extension of the tray should be
2mm short of the vestibular depth with no
interference with muscle or frenal
attachment.
Requirements Of Impression Trays
5. Cont…
4. The entire borders of the tray should be
smooth and rounded.
5. The tray should retain its shape throughout
the impression procedure and pouring of
impression.
6. The handle of the tray should be angulated.
6. Types of stock trays
A. Metallic it can be aluminum or stainless steel.
B. Non metallic:
1. Plastic tray which can be sterilized.
2. Disposable plastic trays.
10. Adhesives & Perforations
• t is essential that impression
materials adhere firmly to the
impression trays. This can be
achieved by either perforations
or by the use of adhesives.
Adhesive solutions are needed
for alginates, polysulphides and
silicones. Adhesives for alginates
are solutions of resins in alcohol,
they are supplied in a bottle with
a brush or an aerosol spray.
Tray adhesive being applied to a
metal stock tray for an alginate
impression
