MTA and Biodentine are bioactive dental materials used for various clinical applications. MTA is composed of Portland cement, bismuth oxide, calcium sulfate and has a long setting time of 2 hours and 45 minutes. Biodentine has a faster setting time of 12 minutes due to its composition containing calcium chloride and hydrosoluble polymers. Both materials have bioactive properties such as biocompatibility, sealing ability and promotion of mineralization. Clinical applications of MTA and Biodentine include pulp capping, repair of root perforations, apexification and as root-end fillings.
A simple presentation to guide a dentist to choose best irrigant for the case. types of irrigants, their properties, advantages and disadvantages and tips has been discussed through this presentation.
major advantages and unique features as well as its ability to overcome the disadvantages of other materials, biodentine has great potential to revolutionize the different aspects of managing both primary and permanent in endodontics as well as operative dentistry.
A simple presentation to guide a dentist to choose best irrigant for the case. types of irrigants, their properties, advantages and disadvantages and tips has been discussed through this presentation.
major advantages and unique features as well as its ability to overcome the disadvantages of other materials, biodentine has great potential to revolutionize the different aspects of managing both primary and permanent in endodontics as well as operative dentistry.
An inlay may cap none, or may cap all but one cusp.
Sturdevant’s 4th ed. page579
Inlays may be used as single-tooth restorations for proximo-occlusal or gingival lesions with minimal to moderate extensions
Shillingburg page 1
An inlay may be defined as a restoration which has been constructed out of mouth from gold, porcelain, or other material & then cemented into the prepared cavity of a tooth.
William McGehee pg410
Diagnosis and treatment planning in conservative dentistry and endodonticsIndian 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.
Smear layer is a controversial topic in the field of operative dentistry and endodontics. This presentation includes composition, concepts, structure, advantages, disadvantages, and removal methods of smear layer.
An inlay may cap none, or may cap all but one cusp.
Sturdevant’s 4th ed. page579
Inlays may be used as single-tooth restorations for proximo-occlusal or gingival lesions with minimal to moderate extensions
Shillingburg page 1
An inlay may be defined as a restoration which has been constructed out of mouth from gold, porcelain, or other material & then cemented into the prepared cavity of a tooth.
William McGehee pg410
Diagnosis and treatment planning in conservative dentistry and endodonticsIndian 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.
Smear layer is a controversial topic in the field of operative dentistry and endodontics. This presentation includes composition, concepts, structure, advantages, disadvantages, and removal methods of smear layer.
Concrete Construction: Batching of mixes; casting process, compaction and curing;
requirement of mix design and casting of test cubes – removing cubes from moulds and
curing for strength tests; bar-bending equipments and preparation of reinforcement for
R C C works
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
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Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
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These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
3. CONTENT
• INTRODUCTION
• BIOACTIVE MATERIALS
• CLASSIFICTION OF BIOACTIVE MATERIALS
• BIOACTIVE MATERIALS IN PRACTICE
• MTA –
1. HISTORY
2. LIST OF COMMERCIALLY AVAILABLE MTA
3. COMPOSITION
4. MANIPULATION
5. MIXING TIME
6. MECHANISM OF ACTION
7. CLINICAL APPLICATIONS
8. ADVANTAGES
9. DISADVANTAGES
4. • BIODENTINE-
1. COMPOSITION
2. MANIPULATION
3. MIXING TIME
4. SETTING TIME
5. MECHANISM OF ACTION
6. PROPERTIES
7. CLINICAL APPLICATION
8. SUMMERY
• CONCLUSION
• REFERENCES
5. • Many adhesive dental restorative materials were thought to
have a passive hard tissue interaction based on simple
infiltration with the enamel or dentin.
• However, there is increasing interest in studying the bioactivity
of the material.
INTRODUCTION
6. BIOACTIVE MATERIALS
“A bioactive material is one that elicits a specific
biological response at the interface of the material which
results in the formation of a bond between the tissues and the
material”.
(1969, Hench)
Hench LL, Splinter RJ, Allen WC, Greenlee TK Jr.; Bonding mechanisms at the
interface of ceramic prosthetic materials. J Biomed Mater Res., 1972; 2:117-141.
7. CLASSIFICATION OF BIOACTIVE
MATERIALS
Osteoproductive
Materials
• The bioactive surface is
colonized by osteogenic stem
cells.
• Occurs when a material
elicits both an intracellular
and an extracellular response
at its interface.
Osteoconductive
Materials
• Materials simply provide a
biocompatible interface along
which bone migrates.
• Occurs when a material
elicits only an extracellular
response at its interface.
8. BIOACTIVE MATERIALS IN
PRACTICE
• Mineral Trioxide Aggregate
• Biodentine
• Bioaggregate
• Endosequence Root Repair Material
• Bioactive Root Canal Sealers
• Bioactive luting agents
• Calcium enriched mixture
9. MTA
HISTORY:
• 1993: Introduced to endodontics by M Torabinejad -at loma
linda university,
• 1998: Took acceptance of U.S. Food and
drug administration,
• 1999: Commercially released as
ProRoot MTA (DENTSPLY Tulsa, USA)
10. • Most commonly recommended material for sealing
communications between the root canal system and the
periodontium.
• MTA was developed and recommended for endodontic
procedures:
1. Nontoxic,
2. Noncarcinogenic,
3. Nongenotoxic,
4. Biocompatible,
5. Insoluble in tissue fluids,
6. Dimensionally stable nature
18. Hydration of MTA
• Chemical reaction that leads to the setting of hydrophilic cement is
called “hydration”
• Components of MTA cement-are partially soluble in water
• Soluble components react at different speeds and rates
• Heat occurs during the reaction, and new products form
• The resulting new products cause the setting of MTA cement and
provide bonding to each other in the content of the components
20. • Calcium silicates (C3S,C2S), calcium aluminates (C3A, C4AF)
and calcium sulphate (CS2H) in the MTA’s structure directly
affects the hydration reaction
Tricalcium silicate (C3S)
• It comprises approximately 55% of the volume of MTA
• It provides rapid hydration and setting of the cement
• It is largely held responsible for initial setting and early strength
3CaO∙SiO2+ H2O CaO∙2SiO2∙3H2O+ Ca(OH)2
Silicates:
21. Dicalcium silicate (C2S)
• It comprises approximately 20% of the volume of MTA
• It provides slow hydration and setting
• It is largely held responsible for late strength
2CaO∙SiO2+ H2O 3CaO∙2SiO2∙3H2O+ Ca(OH)2
22. Aluminates
Tetracalcium aluminate (C3A)
• Alumina is the combination of calcium oxides with tricalcium
aluminate (C3A) and combination of iron oxides with
tetracalcium aluminoferrite (C4AF)
• Aluminites comprise approximately 20% of cement
• During hydration, C3A reacts too fast and resists to sulphate
(CS2H)
23. Tetracalcium aluminoferrite (C4AF)
• It balances and decreases the heat that occurs during the
setting
• Due to the iron component, it causes discoloration
24. Calcium sulphate
• It controls the effect of C3A which starts the setting reaction
quickly and reduces the reaction rate
• When there is no sulphate in cement (CS2H), the setting occurs
very early
• Initial setting of CS2H controls the rise in early strength
25. HYDRATION REACTION
1. Mixing Process
• Aluminate and gypsum (caso4∙4h2o) dissolve in water and
react within a few minutes
• As a result of Rapid dissolution of gypsum added to cement-
Aluminates dissociated from cement- forms a gel-like layer
around the powder particles by reacting with water
• Gel like layer prevents- quick reaction of aluminates- rapid
setting of cement
26. 2. Sleep Process
• During this process, cement-can be transported, placed or
processed.
• The duration might vary with chemical additives.
• Rate of heat generation remains almost constant- reaction still
continues.
• Cement components dissolve and saturate with water calcium
in the cement (Ca2
+) and hydroxyl (OH-) ions
27. 3. Setting Process
• When,water of cement is oversaturated with soluble calcium
ions, new hydration products begin to form- beginning of
setting
• The amount of new products formed in the setting period
increases constantly
• Resulting product is collected around the hydrophilic particles
that connect each other & surrounds the particles- the cement
starts to set and solidify
28. • Initial setting time: duration between the mixing of MTA
powder with water and the moment when the cement start
precipitation by showing physical changes
• Final setting time: duration between the mixing of MTA
powder with water and the moment when the cement solidifies
29. 4. Cooling Process
• During this process-“topochemical” reaction occures
• Cement has become saturated in terms of components.
• Hydration starts at the surface of cement particles (C3S), and
hydration products (C-S-H and CH) are formed at the surface.
• The process of cement gaining strength also begins in this
period
30. 5.Concentration Process
• The reaction slows down and the heat output is reduced
significantly.
• Hydration products continue to generate and develop slowly
• Cement reaches the most rigid and robust structural properties
that can be gained
31. • As a result of this reaction, crystal structure of hydrate is
weak which forms a porous solid.
• This structure is called “silica gel”. Ca ions in silica gel
combine with the OH ion and convert into Ca(OH)2
32.
33. • Once tricalcium aluminate (3CaAl2O4) is hydrated in the
presence of calcium sulphate (CaSO4), it forms ETTRINGITE
(or sulphoaluminat calcium) with high sulphate concentration
34. • Ettringite formation continues until all sulphate ions are used.
• Ettringite is converted to monosulphate once sulphate (SO2)
ions are depleted.
• The resulting ettringite is disintegrated on the surface of
cement particle and silicate hydrate coating is formed.
• After the destruction of the silicate hydrate coating, hydration
can take years.
35. PROPERTIES OF MTA
1.pH: initially-10.2,
after 3 hours- 12.5 (remains constant)
2. Radiopacity: 7-17 mm of equivalent thickness of aluminium
3. Setting time: about 2 hours and 45 minutes
4. Compressive strength: In 24 hours- 40 Mpa
after 21 days: 67Mpa
5. Solubility: no signs of solubility, but if more water is used
during mixing- results into solubility of material
36. 6. Biocompatibility: Promoters regeneration of dental and osseous
tissues, may induce cementoblasts to produce matrix for
cementum formation over MTA
7.Sealing ability: excellent sealing ability, because MTA expands
during setting reaction
• In presence of moist environment sealing ability of MTA is
increased
• Moistened cotton pellet should be placed in contact with MTA
before placement of the permanent restoration
37. • Acc. To Valois et al. (2004): about 4-mm thickness of MTA is
sufficient to ensure a good sealing
8. Antibacterial and antifungal property: according to Torabinejad
et al. (1995)MTA showed no antimicrobial action against any
of the anerobes
Al-Hazaimi et al. (2006): MTA has antibacterial effect
especially against Enterococcus faecalis and Streptococcus
sanguis
38. 9. Reaction with other dental materials: Acc. Nandini S et al.
(2006): MTA does not react or interfere with any other
restorative material
Acc. Srinivasan V et al (2009): residual calcium hydroxide may
interfere with the adaptation of MTA to dentinal wall- results in
reduced sealing ability which occurs by a mechanical obstacle
of CaOH2 particle by chemically reaction with MTA
39. 10. Biocompatibility : Application of MTA as a root end filling
material promoters regeneration of dental and osseous tissues,
and may induce cementoblasts to produce matrix for
cementum formation over MTA
11. Mineralization: similar to calcium hydroxide (CaOH2), induces
formation of dentin bridge
tricalcium oxide content of MTA interacts with tissue fluids and
form CaOH2, resulting in hard-tissue creation in a similar
manner to that of CaOH2
42. • MTA has been successfully used for the treatment
1. Strip and supracrestal perforations,
2. Horizontal root fractures,
3. Sealing Communications between the root canal space,
4. External root surfaces,
5. Filling root canals of teeth with mature and open apexes,
6. Management of dens invaginatus
46. • Was Commercially available in 2009 (septodont)
• Was specifically designed as a “dentine replacement” material
• Actually formulated using the MTA-based cement technology
and the improvement of some properties of these types of
cements
47. COMPOSITION
POWDER
• Tri-calcium silicate- main core
material.
• Di-calcium silicate-second core
material
• Calcium carbonate & oxide-acts
as a filler
• Iron oxide-colouring agent
• Zirconium oxide- radioopacifier
LIQUID
• Calcium chloride-
accelerator
•Hydrosoluble polymer-
water reducing agent
48. MANIPULATION
• Fine Hydrophilic powder composed of modified powder
composition of MTA
• Biodentine is available as powder in a capsule and liquid in a
pipette
49. Mixing time:
• The powder is mixed with the liquid in a capsule in the
triturator for 30 seconds
Setting time: Approximately 12 min
50. • The reaction of the powder with the liquid leads to the setting
and hardening of the cement.
• The hydration of the tri-calcium silicate leads to the formation
of a hydrated calcium silicate gel and calcium hydroxide
(Taylor et al, 1997).
• The cement located in inter
areas has a high level of
calcite content .
Mechanism Of Action
51. • The tri-calcium silicate hydration is achieved by dissolution of
tri-calcium silicate and precipitation of calcium silicate hydrate.
• Layers of calcium silicate hydrated gel surround the unreacted
tri-calcium silicate grains, which are relatively impermeable to
water.
• Due to permanent hydration of tri-calcium silicate the C-S-H
will form, which gradually fill the space between the grains of
tri-calcium silicate.
52. The following formula shows the complete hydration reaction
(Taylor et al, 1997; Allen et al, 2007).
2(3CaO.SiO2) + 6H2O 3CaO.2SiO2.3H2O + 3Ca (OH)2
53. PROPERTIES OF BIODENTINE
1. Tissue Regeneration & Early Mineralisation : Biodentine
induces early minerlization by increasing the secretion of
TGF-beta1 from pulpal cells after its application.
It also acts by odontoblasts stimulation and cell
differentiation-facilitating reactionary and tertiary dentin
formation.
2. Setting time : 12 mins.
54. 3. Anti bacterial properties : high alkaline pH –inhibitory effect
on microorganisms.
-the alkaline change leads to the disinfection of surrounding
hard and soft tissues.
4. Biocompatibility: preserves pulp vitality and promotes its
healing process.
55. 5. Push Out Bond Strength Of Biodentine: higher push-out bond
strength than MTA
6. Good material handling: ease of manuplation , better
consistency, safety handling with favourable setting kinetics –
about 12minutes
-Absence of post operative pain, when used as a dentin
substitute in class 1 & class 2 composite restorations
56. 7. Specific properties of Biodentine as Dentin Substitute:
Properties Biodentine Dentine
Elastic modulus 22 Gpa 18.5 Gpa
Compressive
strength
220 mpa 290 mpa
Microhardness 60 KHN 63.1 KHN
57. 8. Mariginal Adaptation and Sealing Ability:
• The micromechanical adhesion of biodentine -is caused by the
alkaline effect during the setting reaction.
• This high pH causes organic tissues to dissolve out of the
dentin tubule.
• The alkaline environment at the boundary area of contact
between biodentine and hard tooth substance opens a path via
which the dentin substitute mass can enter the exposed opening
of the dentin canaliculi.
58. • This enables biodentine to be keyed to the dentine by means of
innumerable microscopic cones, creating a stable anchorage
with a sealing-
“BACTERIA-TIGHT EFFECT”
59. CLINICAL IMPLICATIONS
• Pulp capping
• Repair of root perforations,
• Apexification
• Root-end filling
• As dentine substitute [base]
for posterior restorations
• Resorptive lesions
• Retrograde filling
63. MTA BIODENTINE
Advantages High biocompatibility
- Hydrophilic
Radio-opaque
- Highly alkaline ph
- Excellent sealing
ability (Low marginal
leakage)
- Low solubility
release of calcium, a
source of
hydroxyapatite
Sealing
ability
excellent Better than MTA
Solubility Less soluble More soluble
71. CONCLUSION
• Disadvantages of calcium hydroxide and MTA has given a
way for the use of biodentine with better results.
• Due to major advantages and appreciable properties and ability
to achieve biomimetic mineralisation, biodentine has great
potential to revolutionise the management of affected tooth in
the operative dentistry and endodontics.
• However further studies are required to extend the future
scope of this material regarding the clinical applications.
72. REFERENCES
• Macwan C, Deshpande A. Mineral trioxide aggregate (MTA) in
dentistry: A review of literature. Journal of Oral Research and
Review. 2014 Jul 1;6(2):71.
• Okiji T, Yoshiba K. Reparative dentinogenesis induced by
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