This document provides an overview of esthetic biomaterials and principles for clinical steps in restorative dentistry. It lists materials used, cavity preparation techniques, and factors affecting polymerization. It then discusses direct resin composites indications and contraindications, basic instruments used, clinical procedures for class III, IV and V cavities. These include preparation details, matrix and wedge use, adhesive placement, composite insertion and curing techniques. Finishing and polishing of restorations is also covered. The document concludes by mentioning pre-heating of composite to lower viscosity for improved adaptation.
The presentation depicts in a very simplified manner the steps of cavity preparation and restoration of class 3 and class 5 composite restoration. It is well supported with illustrations that further provide a better understanding of the topic.
The presentation depicts in a very simplified manner the steps of cavity preparation and restoration of class 3 and class 5 composite restoration. It is well supported with illustrations that further provide a better understanding of the topic.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Copy of fundamentals of cavity preparations / dental implant coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Provisional restorations finalised /certified fixed orthodontic courses by In...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Provisional restorations finalised /certified fixed orthodontic courses by In...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Copy of fundamentals of cavity preparations / dental implant coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Provisional restorations finalised /certified fixed orthodontic courses by In...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Provisional restorations finalised /certified fixed orthodontic courses by In...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Can AI do good? at 'offtheCanvas' India HCI preludeAlan Dix
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https://www.alandix.com/academic/talks/offtheCanvas-IndiaHCI2024/
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Figma is a cloud-based design tool widely used by designers for prototyping, UI/UX design, and real-time collaboration. With features such as precision pen tools, grid system, and reusable components, Figma makes it easy for teams to work together on design projects. Its flexibility and accessibility make Figma a top choice in the digital age.
White wonder, Work developed by Eva TschoppMansi Shah
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In this slides I explain how I have used storytelling techniques to elevate websites and brands and create memorable user experiences. You can discover practical tips as I showcase the elements of good storytelling and its applied to some examples of diverse brands/projects..
Hello everyone! I am thrilled to present my latest portfolio on LinkedIn, marking the culmination of my architectural journey thus far. Over the span of five years, I've been fortunate to acquire a wealth of knowledge under the guidance of esteemed professors and industry mentors. From rigorous academic pursuits to practical engagements, each experience has contributed to my growth and refinement as an architecture student. This portfolio not only showcases my projects but also underscores my attention to detail and to innovative architecture as a profession.
Book Formatting: Quality Control Checks for DesignersConfidence Ago
This presentation was made to help designers who work in publishing houses or format books for printing ensure quality.
Quality control is vital to every industry. This is why every department in a company need create a method they use in ensuring quality. This, perhaps, will not only improve the quality of products and bring errors to the barest minimum, but take it to a near perfect finish.
It is beyond a moot point that a good book will somewhat be judged by its cover, but the content of the book remains king. No matter how beautiful the cover, if the quality of writing or presentation is off, that will be a reason for readers not to come back to the book or recommend it.
So, this presentation points designers to some important things that may be missed by an editor that they could eventually discover and call the attention of the editor.
PPSX Esthetic Biomaterials and Principles of Clinical steps.ppsx
1. Esthetic Biomaterials &
Principles of Clinical Steps - 1
Muhammad Amber Fareed
BDS (Lahore), MSc (London), PhD (Birmingham),
FRACDS (Sydney), FDSRCPS (Glasgow), DipMedEdu (Cardiff)
Professor of Restorative Dentistry
College of Dentistry, Gulf Medical University
Ajman, United Arab Emirates
1
2. Learning Content
• List of esthetic restorative materials
• Cavity preparation
• Oral environment
• Selection of the esthetic restorative material and its properties
• Material application or placement
• Polymerization technique
• Factors affecting polymerization
• Light polymerization unit
• Finishing and polishing of restoration
Prof MA Fareed 2
3. Learning Outcomes
• Discuss the different esthetic restorative materials
• Determine the different features for cavity preparations in the
esthetic zone
• Define polymerization reaction of composite and its sequelae
• Illustrate different strategies used to reduce polymerization shrinkage
stress
• Discuss the interaction between the restorative materials and the oral
environment
Prof MA Fareed 3
4. Cavity Preparation Principles
Esthetic restoration procedure either involves the cavity preparation:
• Class III cavity preparation
• Class IV cavity preparation
• Class V cavity preparation
Prof MA Fareed 4
5. Direct Resin Composites Restoration
Indications Contraindications
• Class I, II, III, IV, V, and VI restorations
• Foundations and core buildups
• Sealants and preventive resin restorations
(conservative composite restorations)
• Esthetic enhancement procedures: Partial
veneers, Full veneers, Tooth contour
modifications, Diastema closures
• Temporary or provisional restorations
• Periodontal splinting
• Luting of indirect esthetic restorations
(when used in flowable form, or when
heated to increase low)
• Inability to obtain adequate
isolation
• Occlusal considerations related
to wear and fracture of the
composite material
• Extension of the restoration on
root surface
• Operator factor
Prof MA Fareed 5
7. Class-III Composite – Initial Clinical Procedures
Initial Clinial Procedure involves the following steps:
• Anesthesia For patient comfort and to decrease salivary low
• Occlusal assessments to determine the tooth preparation design
• Composite shade must be selected before the tooth dehydrates
• Rubber dam isolation facilitate access and effective bonding
• Wedge placement should be placed beforehand as it may assist in
the reestablishment of the proximal contact with composite
Prof MA Fareed 7
8. Class-III Composite – Tooth Preparation
• The tooth preparation for Class III direct composites involves
1. Creating access to the faulty structure (caries, defective restoration, non-
carious tooth surface lesion)
2. Removal of faulty structures (the caries lesion, defective restoration, and
base material, if present)
3. Creating the convenience form for the restoration.
4. Retention, primarily obtained by bonding, so it is not necessary to use
mechanical retention features in the tooth preparation
5. Obtaining access to the defect may include removal of sound enamel to
access the caries lesion.
6. The extension of the preparation is therefore ultimately dictated by the
extension of the fault or defect
Prof MA Fareed 8
9. Class-III Composite Cavity Preparation – Bavel
• In class-II composite No bevels are placed as beveled composite
margins may be more difficult to finish.
• In class-III composite Enamel bevel is used on the facial cavo-
surface margin to provide a gradual color transition from the
restoration to the tooth structure
• Additional retention form if needed is achieved either by
increasing the surface area with a wider enamel bevel or by adding
retentive features in the preparation internal dentin walls.
Prof MA Fareed 9
10. Class-III Composite – Lingual Preparation
• A choice between facial or lingual entry for class-III cavity preparation
• Lingual approach always preferred due to following advantages
1. Facial enamel is conserved to enhance esthetics
2. Shade matching is less crucial in lingual approach
3. Discolored lingual restoration is less visible
• Facial approach sometime preferred if
1. Caries is position facially and caries removal is necessary
2. Faulty composite restoration replacement which was placed facially
Prof MA Fareed 10
12. Class-III Composite – Final Preparation Stage
• Selective removal of carious dentin by round carbide bur or
excavator
• Pulp protection
• Bevel placement on accessible enamel margins
• Outline form of the final preparation should NOT…
1. Include the entire proximal contact area
2. Extend onto the facial surface
3. Extend too much sub-gingivally
Prof MA Fareed 12
14. Class-III Composite – Key Points
Prof MA Fareed 14
• In approximating caries lesions or faulty
restorations on adjacent teeth:
• If one of the lesions is larger than the other, then
the larger outline form is developed first.
• The second preparation can be more conservative
because of the improved access provided by the
larger preparation.
• The reverse order would be followed when the
restorative material is inserted.
15. Class-IV Composite Restoration – Principles
• Preparation is similar to class III except that the
preparation for class IV is extended to the incisal angles
• Preoperative assessment of occlusion is very important
• Placement of margin in noncontact areas
• Shade selection is more challenging
• An enamel bevel On the facial cavo-surface margin
to provide a gradual color transition
Prof MA Fareed 15
16. Class-IV Composite – Marix Application
• A commercially available preformed plastic or
celluloid crown form may be used but usually too
thick as a matrix.
• A custom lingual matrix may be used for large
Class IV preparations
• Lingual matrix is prepared with polyvinyl siloxane
or fabricated from a quickly inserted mockup
restoration or waxed study model for more
complex cases
Prof MA Fareed 16
17. Class-V Composite Restoratins
• Occlusal evaluation is not required for Class V restorations
unless there are concerns about occlusal factors as an
etiology for non-carious cervical lesions
• Abfraction may also cause cervical non-carious cavities
• Shade selection tooth is more darker and opaque in
cervical 1/3
• Isolation with rubber dam/cotton roll / retraction cord
Prof MA Fareed 17
18. Class-V Composite – Cavity Prepartion
• The lesion or defect is conservatively
prepared resulting in a form that may have
a divergent wall configuration and an axial
surface that usually is not uniform in depth
• Small or moderate lesions extend onto
the root surface
Prof MA Fareed 18
19. Class V – Non-carious Cervical Lesions (NCCL)
• It requires only surface debridement of any exposed dentin and
roughening/beveling all enamel margins with a diamond instrument
because of the inherent form of an abraded or eroded lesion, further
preparation of root surface cavosurface margins is not needed.
Prof MA Fareed 19
20. Common Restorative Procedures
• Outline form assessment of expected cavity preparation
• Keep as much as possible sound tooth structure, especially at the
gingival margin
• Peripheral enamel presence strengthen the composite restoration
• Enamel bonding is more predictable than dentine bonding
• Isolation problem and potentional problem to achieve adhesion if
gingival margin of Class-II extend onto the root surface
• Contraindication Deep sub-gingival margin of Class-II cavity to the
root surface site due to problems with composite adhesion
Prof MA Fareed 20
22. Anterior Composite – Adhesive Placement
• Acid-etching is done before the total-etch adhesive application
• For self-etch adhesive no etching is required (follow instruction)
• The dental adhesive is applied to the entire preparation with a micro-
brush, in accordance with the manufacturer’s instructions.
• After application, the adhesive is polymerized with a light-curing unit,
as recommended by the manufacturer.
• Necessary pulp protection is done before etching and bonding
• Remaining dentin thickness is clinically judged to to be less than 0.5
mm, a calcium hydroxide liner should be used in the deepest cavity
Prof MA Fareed 22
23. Anterior Composite Insertion and Light Curing
• First, the proximal box portion of the preparation is restored
• Place composite incrementally to maximize the curing potential
• Oblique incremental build-up reduce the polymerization shrinkage
• First increment should be placed along the gingival floor (<2 mm)
• Second increment (2 mm) lingual (or facial) wall to restore box
• Final increment is to develop the marginal ridge
• After proximal box, occlusal restoration by anatomic layering technique
Prof MA Fareed 23
25. Resin Composite – Pre-heating
• Composite resin placement may be stiffness and stickiness
• Heating the composite material prior to insertion may help
• Commercial “composite warmers” are available (e.g., Calset,
AdDent) to pre-heat the composite resin up to 68°C (155°F)
• The increased temperature lowers the viscosity of composite,
resulting in better marginal adaptation and reduced microleakage
• When a stiffer or “packable” high-viscosity composite, a very small
increment of a flowable composite may be first placed in the
proximal box to improve marginal adaptation of the restoration.
Prof MA Fareed 25