1. NANO TECNOLOGY IN RESTORATIVE DENTISTRY
MOVING TOWARDS A FINER WAY OF DOING DENTSTRY
DR.JAGADEESH K
P.G. STUDENT
GOVT.DENTAL COLLEGE & HOSPITAL
VIJAYAWADA

2. INTRODUCTION
“You have to be able to fabricate things,
you have to be able to analyze things, you
have to be able to handle things smaller
than ever imagined in ways not done
before.”
- William Philips
DEFINITION -Nanotechnology is the manipulation of matter on an atomic, molecular,
and supramolecular scale. The earliest, widespread description of nanotechnology
referred to the particular technological goal of precisely manipulating atoms and
molecules for fabrication of macroscale products
Richard .P Feynman

3. NANO DENTISTRY – ROBERT FREITAS
ADVANTAGES OF NANO MATERIALS
• More wear resistant
• More biocompatible
• Biomimetic
• Less polymerization shrinkage

4. NANO GLASS IONOMER
Surface finish more closely approximates hybrid composite
Improved wear resistance

5. NANO COMPOSITES
• Enhance the polishability of resin .
• High filler loading Increases hardness and wear resistance
• Reduced polymerization shrinkage and less staining.
• Superior hardness, translucency and esthetic appeal.
• Superior flexural strength

6. NANO BONDING AGENTS
Self etching ,one step materials
Silica nano filler technology
higher bond strength performance prevents particle settling.
Homogenous coat of bonding agent can be applied
Treatment time is minimal.

7. COATING AGENTS
• Used as a final coating over esthetic restorations.
• Nanotechnology uniformly disperses nanofillers for higher wear resistance,
preventing abrasion and discolouration
• Smooth high luster finish retained over time.
• Better wear and stain resistance

8. DENTIN HYPERSENSITIVITY
Many therapeutic agents provide temporary relief for this
common painful condition, but reconstructive dental
nanorobots, using native biological materials, could selectively
and precisely occlude specific tubules within minutes, offering
patients a quick and permanent cure.

9. ULTRAFINE POLISHING
Before nano particle polishing
after nano particle polishing
protect tooth surfaces against the damage caused by cariogenic bacteria
as the bacteria can be removed easily from such polished surfaces.
This also leads to less staining of the teeth and better aesthetics.

10. NANO METRIC BIO ACTIVE GLASS
T.E.M of bioactive glass nano particles
S.E.M of a dentine surface after treatment
with ultrafine bioactive glass
• Increased anti microbial efficacy by decreasing the size of glass particle size
and increasing the surface area
• Advantageous to be material to be used as dentin disinfectant

11. NANO TECHNOLOGY BASED ENDODONTIC SEALER
Endosequence Bc Sealer allows for the first time, to take advantage of all
the benefits associated with bioceramics but to limit its use to merely root
repairs and apical retrofills.
BC sealer is to improve the convenience and delivery method of an
excellent root canal sealer while simultaneously taking advantage of its
bioactive characteristics.

12. NANO TECHNOLOGY BASEDROOT END SEALANT
Drug-Releasing Root-End Sealant
Bioaggregate a white nanoparticle ceramic cement is a novel root-end filling material y
This NERP material significantly reduce the micro-leakage,seals effectively.
This provides better bond strength and adaptability to the tooth structure.

13. DEN BUR NANO BRUSH – disposable anatomically sensitive
endo applicator
Denbur Nano-Brush is a new standard in Endodontics
Thoroughly and effectively cleans the root canal and allows to apply materials
precisely
Whether to clean the pulp from the chamber, to clean the debris in the
canal, or to apply materials in the canal.
After using Nano-Brush resin sealers can penetrate deep into dentine tubules
and lateral canals

14. NANO PARTICLES AS ANTI MICROBIAL AGENTS
Broad spectrum of activity and biocompatibility.
polycationic or polyanionic in nature with higher surface area and charge
density.
Chistosan nanoparticles applied in the treatment of bacterial biofilms as
well as wound healing primarily.
Chitosan nanoparticles effectively eliminates the residual adherent
andnonadherent bacteria as well as increasing the diffusion of antibacterial
components from the root canal sealers.
significant antibacterial efficacy against planktonic Enterococcus faecalis.

15. BIO CERAMIC NANO PARTICULATE CEMENT
white mineral trioxide aggregate (MTA) possible to release of hazardous
substances.
DiaRoot BioAggregate, a laboratory synthesized water-based cement was
recently developed aiming to avoid the presence of such substances.
Bio aggregate has same indications for use and comparable characteristics
and composition similar to white MTA, differing mostly by being aluminium
free.
It is claimed to promote cementogenesis and form a hermetic seal inside the
root canal system.

16. NANO PARTICLES OF GOLD AND SILVER
Nano particles of silver and gold has anti bacterial and
Anti fungal properties
NANOCARE GOLD is the first dental material on the
market which allows the elimination of secondary
caries problem
NANOCARE GOLD dental material is used directly
before embedding dental fillings, ceramic or porcelain
crowns, porcelain veneers, bridges (also known as a
fixed partial denture), inlays or onlays
NANOCARE GOLDGOLD improves the adhesion of
composite materials to tooth tissues, which greatly
increases durability of dental restorations

17. NANO CARE PLUS
Bacterio static efect .
Used for final rinsing of root canal treatment
Based on the silver and gold nano particles
Low surface tension of the NANOCARE PLUS carrier substance allows
nanoparticles to get to the smallest fissures and dental ducts of the system.
As a result, even bacteria residing in the fissures in spore form after treatment
have no chances for growth and development.

18. NANOZON
Nano technology based ozone therapy
Provides high concentrations of ozone
Very effective in dental therapy
Facilitates the treatment of initial stages of
Caries in milk and permanent teeth
Reduces the risk of complications after surgical procedure
Improves results in root canal treatment

19. NANO TEC ENDO
Nano technology based endodontic irrigation system
Eliminates the disadvantages of traditional syringe
Ensures max. Safety
Does not require dental assistant
Reduces the risk of post –treatment complications
Prevents the accidental leakage of the liquids into patients
mouth and beyond root apex

20. Nano optimised mouldable ceramics
Nano fillers
enhance polishability
reduce wear
Nano pigments
adjust the shade of the restoration to the
surrounding tooth ( chameleon effect)
Nano modifiers
increases the stability non slump) of the material
prevents sticking to instruments

21. IMPRESSION MATERIAL
Nanofillers are integrated in vinyl polysiloxanes producing
a unique addition silicone impression material.
Thematerial has better flow, improved hydrophilic properties,
and enhanced detail precision.
Trade name – nanotech elite H-D plus

22. FUTURE ADVANCES
NANO ROBOTS
Interrupt or alter nerve-impulse traffic in individual nerve cells.
Induces local anaesthesia
Avoids discomfort to the patient

23. NANO SIZED DENTAL FILM BRINGS TEETH BACK TO LIFE
The scientists are reporting development of a multilayered, nano-sized film that could
help regenerate dental pulp.
Previous studies show that the substance, called alpha melanocyte stimulating
hormone, or alpha-MSH, has anti-inflammatory properties.
Nano-films containing alpha-MSH also increased the number of these cells. This could
help revitalize damaged teeth and reduce the need for a root canal procedure, the
scientists suggest.
Dentists may use a special nano-sized film in
the future to bring diseased teeth back to life
rather than remove them.

24. SAPPHIRE AND DIAMOND
Tooth durability and appearance improved
High hardness and failure strength
Can be used in nano composites
DENTIF ROBOTS ( NANO ROBOTIC DENTIFRICE )
Metabolises the trapped organic matter
Performs continuous caluculs debridement
Safely disactivates them selves

25. REFERENCES
What is Nanotechnology? By Zhong L. Wang
http://www.nanoscience.gatech.edu/zlwang/research/nano
A Nanotechnology Composite Author: N. Davis
Compendium/Sept. 2003, Vol. 24, No.9, 662-670
Dr. Ekta Ingle J Oral Health Comm Dent 2011;5(2)64-67
Dr. Manjula Mehta,Indian J Dent Res, 20(4), 2009
Ramandeep Singh Gambhir, G. M. Sogi, Ashutosh Nirola,Heena KakarJournal
of Orofacial Sciences
Vol. 5 Issue 1 January 2013
Saunders dovepress company 2013