A penta circle educed from the key restorative materials gi cs , composites, ceramics

 RESTORATION-WHY IS IT
IMPORTANT?
 CARIES CONTROL-IS IT A TOUGH
ONE?
 WHY MICROLEAKAGE OCCURS?
 PATIENT TOLERANCE…WILL A
RESTORATION CONSUME MORE
TIME ?
 ARE IMPLANTS SAFE?
 FUNCTIONAL RESTORATION OF
TOOTH--CAN IT BE ACHIEVED TO
MATCH THE NATURAL TOOTH?
2 Saturday, November 29, 2014
A PENTA CIRCLE EDUCED FROM THE KEY
RESTORATIVE MATERIALS

Highly aesthetic
Time saving
PATIENT
DENTIST TOOTH
Better
handling
properties
Anticariogenic
High strength

Giomer
Ormocer
Ceromer
Smart materials
Nanobioceramic
modified GICs

PRG
FILLER
PARTICLES
GIC +
COMPOSITE
POLYALKENOIC
ACID IS A PART
OF RESIN
MATRIX
PROTECTION
FROM
MOISTURE
LIGHT
ACTIVATED
REQUIRES
BONDING
AGENT
CONVENTIONAL
GICs(FLUORIDE
RELEASE AND
RECHARGE)
RESIN
COMPOSITE
(EXCELLENT
AESTHETICS,EASY
POLISHABILITY &
BIOCOMPATIBILITY)

GLASS IONOMER
AS THE BASE
MODIFICATIONS
RESIN-MODIFIED
GICs -- which
discoloured
overtime
COMPOMERS--
which released much
less fluoride and
lacked recharge
ability
GIOMERS ---contained
resin-based pre-reacted
glass ionomer particles

EASY
POLISHABILITY
STRENGTH
OF
COMPOSITE
FLUORIDE
RELEASE
FLUORIDE
RECHARGE
Appealing
appearance
HIGHLY
AESTHETIC
Retains smooth surface,
minimal surface staining
Fracture
resistant
Fluoride
reservoir
anticariogenic

ACID
REACTIVE
FLUORIDE
CONTAINING
GLASS
POLY
ACID
LIQUID
A GLASS CORE SURROUNDED BY A
GLASS IONOMER PHASE ENCLOSED
WITHIN A POLYACID MATRIX
FLUORIDE
RESERVOIR(ANTI-PLAQUE
EFFECT)

FLUORIDE
• Improves acid resistance through the formation of fluorapatite, remineralizes
decalcified tooth substance and is antibacterial
STRONTIUM
• Improves acid resistance by forming strontiumapatite, inhibits dentin
hypersensitivity and accelerates bone formation
ALUMINIUM
• Inhibits dentin hypersensitivity
SILICATE
• Aids in the calcification of bone

RESTORATION OF
ROOT CARIES,NON-CARIOUS
CERVICAL
LESIONS,CLASS V
CAVITIES,CLASS III
CAVITIES
BONDING OF
ORTHODONTIC
BRACKETS
PEDIATRIC
CARE AND
DECIDUOUS
CARIES
INDICATIONS

OR----Organically
MO----Modified
CER---Ceramic
IT COMPRISES
ORGANIC UNIT(ORGANIC POLYMER)
INORGANIC UNIT(GLASS CERAMIC)
INORGANIC-ORGANIC UNIT(POLYSILOXANE)

ORMOCER
CORROSION
PROTECTION
ANTI-REFLECTIVE
AND SCRATCH
COATINGS
DECORATIVE COATINGS
NON-STICK
COATINGS
FIBRE
PASSIVATION COATINGS
LAYERS

WHY ORMOCERS ARE USED IN DENTISTRY?
 MECHANICALLY STABLE
 RESISTANT TO MASTICATORY STRESS LOAD
 CHEMICALLY RESISTANT
 HIGHLY AESTHETIC
 BIOCOMPATIBLE
MONOMER RELEASE
 LESS MONOMER RELEASE
 FULLY POLYMERISED MATERIAL
 SHRINKAGE IS REDUCED

POLYMERISATION
SHRIKAGE IS
REDUCED TO
1.97%
HIGH
MARGINAL
INTEGRITY
SECONDARY
CARIES IS
PREVENTED
INDICATIONS:
 DIRECT RESTORATION FOR ALL TYPES OF
CAVITIES
 COSMETIC VENEERS
 PROTECTIVE SEALANT FOR CHILD TEETH
 PROTECTIVE VARNISH AS CARIES
PROPHYLAXIS
 ORTHODONTIC BONDING ADHESIVE
 RESTORATION OF ATRAUMATIZED ANTERIOR
TEETH
 PROCEDURES FOR ENHANCING AESTHETICS
 REPAIR OF PORCELAIN OR ACRYLIC FACINGS

AESTHETIC
METAL-FREE
DURABLE
 They are composed of specially developed, conditioned,
homogenous, 3-D fine particle ceramic fillers of sub-micrometer
size which are densely packed and embedded in
an advanced organic matrix with optimum light and heat
curing potential.
 Polyfunctional groups contained in it provides high
level of cross-linking, resulting in enhanced strength of
the material.

CERAMIC(INORGANIC)
PHASE
RESIN(ORGANIC)
PHASE
 DURABLE AESTHETIC
QUALITY
 ABRASION RESISTANCE
 HIGH STABILITY
 ENHANCED POLISHABILITY
 EFFECTIVE BOND WITH THE
LUTING AGENT
 LOW DEGREE OF
BRITTLENESS

CERAMICS
 EVENTHOUGH IT HAS
MANY ADVANTAGES, IT IS
EXCESSIVELY HARD.
THUS,BEING
RESPONSIBLE FOR
UNDUE TRANSFER OF
FORCES TO THE IMPLANT
 AS THE WEAR VALUE OF
CEROMER IS VERY CLOSE
TO NATURAL TOOTH,
AND MODULUS OF
ELASTICITY BEING
SIMILAR TO DENTIN,
 IT DOES NOT ABRADE THE
NATURAL TOOTH AS THE
CERAMIC DOES.
CEROMER

 It combines the aesthetics of ceramics with
the flexural strength and shade control of a
resin.
 As the restoration is being fabricated
indirectly, polymerization shrinkage is easily
controlled. Also, interproximal form and
contacts are more accurately established.

INDICATIONS  POSTERIOR BRIDGES
 CROWNS
 INLAYS
 ONLAYS
 VENEERS
CHOICE OF INDIRECT RESTORATIVE
MATERIAL-??
CEROMER
 The metal-free restoration with the flexural strength of a
PFM(1000Mpa).
 99% polymerized.
 Smooth self-polishing surface.
 Safe over the implants.
 Minimizes tooth intrusion in tooth-implant partial fixed
prosthesis.

NANOBIOCERAMIC
MODIFIED GICs
Bioactive glass
Incorporation of
bioactive Nano-silica
to GIC
Introduction of
TiO2
nanoparticles
Addition of
Hydroxyapatite(HA)
powders to GICs
 Mechanical properties
and bond strength to
dentin were improved.

 Glass Ionomer containing TiO2 nanoparticles possess a
potent antibacterial effect.
 These components enable them to be used as a
posterior filling material.

EFFECT OF INCORPORATION OF TiO2 NANOPARTICLES IN GICs
 TiO2 nanoparticles along with the glass
powder containing GLASS IONOMER
exhibits a higher degree of integrity,
 Quicker intracellular damage of bacteria.
 NO interference with the
fluoride releasing property
of GIC.

SMART
MATERIALS
 SMART BEHAVIOUR WAS
REPORTED FOR THE FIRST TIME IN
GICs
 BIOACTIVE GLASS CONTAINING
GIC IS EFFECTIVE FOR PATIENTS AT
HIGH CARIES RISK
 TETRACALCIUM PHOSPHATE(TTCP)
RELEASES CARIES-INHIBITING
IONS(Ca AND P) AT A REDUCED pH
 ACP HAS EFFECTIVE ACTION WHEN
BINDED INTO A RESIN MATRIX
 BONE CEMENTS
 TISSUE
ENGINEERING
SCAFFOLDS
 DENTAL
MATERIALS
 EXTRAORDINARY AESTHETICS
IS ACHIEVED USING SMART
CERAMIC SYSTEM

SMART COMPOSITES SMART CERAMICS

Many advancements have been made in restorative
dentistry so far. Every new material represents the state-of-the
art science . Improvised technologies have provided
satisfaction for both the patient as well as the dentist , but
the perfect replacement of tooth is still questionable …hence
alterations are being done to improve its longevity and
some of
those modifications are aforementioned by me.

REFERENCES:
KN Jyothi, S Annapurna, Anil S Kumar, P Venugopal, CM Jayashankara
Clinical evaluation of giomer- and resin-modified glass ionomer cement in class V noncarious cervical lesions: An in vivo
study
Year : 2011 | Volume : 14 | Issue : 4 | Page : 409-413(original article)
Leonardo Gonçalves Cunha, DDS, MScI; Roberta Caroline Bruschi Alonso, DDS, MScII; Paulo Henrique dos Santos, DDS,
MScIII; Mário Alexandre Coelho Sinhoreti, DDS, MSc, PhDIV. Comparative study of the surface roughness of Ormocer-based
and conventional composites(original article) J. Appl. Oral Sci. vol.11 no.4 Bauru Oct./Dec. 2003
Ibrahim M. Hamouda and Salah H. Shehata Shear Bond Strength of Ormocer-Based Restorative Material (research article)
ISRN Materials Science ,Volume 2011 (2011), Article ID 376097, 4 pages
Chul-Whoi Ku, DDS, MSDa, Sang-Won Park, DDS, PhDb, Hong-So Yang, DDS, PhDc
Comparison of the fracture strengths of metal-ceramic crowns and three ceromer crowns Journal of Prosthetic Dentistry
Volume 88, Issue 2, Pages 170–175, August 2002
Srivatsa G1*, Rahul Kotaria, Rohit Shetty, and Narendra Padiyar, and Roshan Kumar, Ceromer as an Implant Superstructure
Material: A Review Year: 2013
Shaymaa E. Elsaka , Ibrahim M. Hamouda , Michael V. Swain Titanium dioxide nanoparticles addition to a conventional
glass-ionomer restorative: Influence on physical and antibacterial properties, Elsevier , Year:2011
Pawan Gautam and Ashima Valiathan ,Bio-smart dentistry: stepping into the future ,Year :2008
Saturday, November 29, 2014
S. M. Abdul Quader, M. Shamsul Alam, A K M Bashar, Abdul Gafur, M A Al-Mansur
Compressive Strength, Fluoride Release and Recharge of Giomer
Year:2012 (original article)
RESTORATIVE MATERIAL
28

A penta circle educed from the key restorative materials gi cs , composites, ceramics

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