1. Dental material
Course code: Dental Material
Methadology: presentation

3. Group names
 Abubakar Mouse Faarah
 Bilal abdi muse
 Nuradiin axmed Cabdi
 Mohmed abdulahi mohmed
 Xayaad mohmed cumar
 Samasma mohmed Cadi
 Haboon dayib abdirhaman
 Khalid muxumed cumar
 Cabdirixiin sheekh cilmi naxwe

4. Objective
1. Definition of Preventive materials
2. Why are used preventive dental material
3. Different types of preventive materials
4. Invasive Dental material.
5. Pit and fissure sealant.
6. Non-invasive dental material.
7. Tooth pastes and its functions

5. 8. Fluoride gels and its function.
9. Mouth wash and its function.
10. Tooth brushes and its function.
11. Mouth protectors and its function.
12. Dental floss and its function.
13. Interdental brushes.
14. what are ideal requirements of dental material?.

6. Presenter one

7. what do you know about preventive dental material?

8. What is preventive dental material?
Preventive is derived from the word preventio it means
forestalling to act before hand hider.
Preventive dental materials are tools and products used
to prevent cavities and tooth decay.

9. Why are they used?
To prevent caries, or pathogen.
To prevent tooth decay.
To prevent disease and injury.

10. Types of preventive dental material
 Invasive dental material : are material that are used after the
caries for treatment in order to preventive the caries which are
damaged the root cannel( it prevents RTC), e.g. pit and fissure
sealant.

11. What are dental sealant?
• Are thin liquid coating painted on to the chewing surface of your
back teeth
(premolars and molars).
• Ones applied, dentist cures and hardens the sealant to shield and
protect your teeth from harmful cavity causing bacteria.

13. Dental sealant made up
Manufactures uses a couple different materials to make sealants,
including medical grade:-
1. Resing (plants and synthesis).
2. Glass ionomers (glass powder and combined with water soluble
acid).

14. Presenter two

15. Resin-based sealants
May or may not contain filler particles or fluorides.
The setting reaction can be automatic(auto-polymerised) or ( light-
polymerised).
Retention rates 2%-80% better than the GIC sealants.
Low viscosity resin-based.

17. Glass ionomer sealant
Can adheres directly to tooth substance.
Release fluoride over time.
Less sensitive to moisture contamination than resin-based
materials.
Retention is a major problem with GIC sealant.

19. Ideal requirements
Adequate working time.
Rapid cure.
Low sorption and solubility.
Resistance to wear.
Minimum irritation to tissues.
Cariostatic action.

20. Indications
All permanent molar teeth cavitation.
Teeth that have deep and narrow pit and
fissures morphology.
Teeth with stained grooves.

21. Presenter three

22. Contraindications
Sealants should not be placed on partially erupted (i.e., once there
is gingival tissue on the crown).
Teeth with cavitation or caries of the dentin.
Wide and self cleansable pit and fissure.
Pit and fissure that have remained carious free for 4 year or longer.

23. Cont.….
• Non invasive dental material: are materials that are used before
caries for protection such as tooth pastes with fluorides, mouth
washes.
• Toothpastes:-

24. Toothpaste
Purpose :-
Cleaning.
Polishing.
Removal of stains.
Reduce incidence of tooth decay.
Reduction of oral malodors.

25. Tooth paste and its functions
Component and composition of tooth pastes
 Colloidal binding agent: sodium agnate methyl cellulose.
 And its function prevent separation of component in the tube during the
storage.
 Humectants: ( dilutes) glycenin and its function reducing water loss by
evaporation.
 Preservatives: used inhibited bacteria growth.

26. CONT.
DETERGENTS: major contributor to teeth cleaning process.
Should be tasteless, nontoxic, non-irritant, produce large volume
of non gigging foam.
Examples:
Sodium lauryl sulfate ( SLS).
Sodium lauryl sarcosinate.

27. Cont.
Anticaries active: fluoride ions reduce the incidence of carious
lesion by reducing the acid solubility of tooth enamel.
Examples:-
Sodium fluoride.
Stannous fluoride.

28. Presenter four

29. Cont.
Flavor: influence consumer acceptance.
Leaves a fresh clean feeling after brushing.
Considered highest cost ingredient in the toothpaste formulation.
Example:-
Methol, wintergreen, cinnamon.

30. Cont..
 abrasive : contains calcium carbonate hydrated- sillice, sodium
by carbonate, aluminum hydroxides and its function removal of
the plague stains, calculus.

31. Advantages
Easy to use.
Whitening toothpaste.
Special toothpaste for kids with fluoride and relatively low abrasion
value.
Desensitizing toothpaste.

32. Dis-advantages
Extended consumption of large volumes of fluoridated toothpaste
can result in fluorosis.
Fluoridated toothpaste can be either acutely toxic if swallowed in
large amounts.
Although in several studies whitening toothpaste show improve
tooth color they have side effect.
The most significant one is enamel and dentin abrasion which in
turn leads to increased tooth sensitivity.

33. Evaluation of toothpaste
Composition.
PH determination.
Determination fluoride ion.
Stability.

34. Fluorides and its function
Fluorides : is natural occurring mineral found in many foods and
water.
In dentistry, health provides used fluoride to strengthen teeth
and reduce the risk caries.

35. Fluorides

36. Presenter five

37. What does fluoride do?
Every day, your enamel ( the protective outer layer of your tooth) gains and
loss minerals. You loss minerals when acids –formed from bacteria, plaque
and sugars in your mouth- attack your enamel( this process is called
demineralization).
You gain minerals like fluoride, calcium and phosphate when you consume
food and water that contain.
You can also get purchase fluoride tooth pastes and mouth wash( this
process is called re mineralization).

38. Conti…
 A dentist can also applied fluoride to your teeth in form of:-
1) Foam:- which they will dispense into a custom tray, than the
place over your teeth.

39. Cont.….
• 2. Vanish:- which they paint directly on your teeth.

40. Cont..
• 3. Gel:- which they will either paint on your teeth or dispense in
custom terry.

41. Which age is fluoride intake most
important?
 Infant and children between age of 6 month up to 16years need
an appropriate amount of fluoride.

42. Does adult benefit from fluoride?
Yes, adults can benefit from fluoride.
If you have:-
Dry mouth:- certain medications( allergic medication)
side effect of some health care condition.
Gum disease: which exposes your teeth and gums to bacteria
and increase your risk of decay teeth .

43. Presenter six

44. cont.…
Crowns ,bridges, or removable partial denture:- which may
increase risk of cavities.

45. Mouth washes and its function
• Composition:-
1. Active agent –anti-caries, antimicrobial.
2. Solution - water, alcohol-preservative.
Children younger than the age of 6 year should not use mouth wash unless
directed by a dentist, because they may swallow.
PH 3.4-6.6
ETHANOL 0-27%

46. • Mouthwashes
Cont.

47. Tooth brushes
 Tooth brushes are made of natural or nylon bristles.
 Nylon bristles are better than natural bristles, for the remain straight, stiff for long time and dry out
quickly.
Types of nylon bristles :-
1. Hard.
2. Medium.
3. Soft.

48. Types of nylon bristles:-

49. Hard tooth brushes
1. Firm or hard bristles can acutely wear away at your tooth
enamel ( the teeth‘s protective layer ), which is something that can not
be replaced. Damaged tooth Enamel can result I n more bacteria sticking to
your teeth which can result in decay. Hard tooth brushes can also damages
your gums. Causing the gum line to recede, resulting in your teeth
becoming more vulnerable to decay.

50. Cont.…
Hard tooth brushes

51. Presenter seven

52. Soft tooth brushes
Soft brushes should be used for prevention abrasive wear of tooth
structure: also, soft tooth -brushes are actually more affective at
removing food and plaque build up than hard bristles tooth brushes,
and they are gentler you the teeth and gums. Soft-bristled brushes
are best for removing plaque and debris from your teeth and along the
gum line as they are not abrasive enough to cause erosion to the
enamel.

53. Cont…
Soft tooth brushes

54. Cont…
• Special toothbrushes are available for:-
1. Denture cleaning.
2. Orthodontic patient.
3. Mentally retarded patients.

55. Mouth protect or Mouth Guard
For maximum protection of mouth and the teeth from the sport
injuries.
The three types of Mouth protector :-
1. Custom made.
2. Stock.
3. Mouth formed.

56. • Custom made mouth protector.
• Uses of custom:-
Prevent tooth fracture.
Protect opposite teeth from contact with each other.
Protect your lower jaw from impact.

57. • Stock mouth protector.
• Uses of stock:-
 protect teeth from injury during sport.

58. Presenter eight

59. • Mouth formed mouth protector.
• Mouth formed mouth protector
are known as boil and bite.
• Softened in heated water ,
inserted into the mouth, and the
molded to fit the individual arch.

60. • Players prefer the custom the made due to:-
oCleanliness.
oComfort.
oLack of taste or odor.
oLaw speech impairment.
oDurability.

61. Advantages of mouth protector
 Reducing snoring.
 Reduce your risk for grinding your teeth.
 Reduce TMJ disorder.
 Protect chipped teeth during teeth.
 Protect damage to your tooth pulp.
 Protect soft tissue injury.

62. Disadvantages of mouth protector
 Time consuming.
 Doesn’t fit quite right it cause soreness in your teeth , gem and
jaw.

63. Presenter nine

64. Dental floss and its function
forms of dental floss
Multifilament-twisted/non-twisted.
Bonded/non bonded.
thick/thin.
Waxed/non waxed.
function
 Polishing of the tooth surface during removal of plaque and debris.
 Removal of adherent plaque and food debris from interproximal.

65. Cont.
Dis-advantages
It is time consuming.
Requires skill.
Carries the risk of tissue damage if not used properly.

66. Method of flossing

67. Interdental brushes
They are cone shaped or cylindrical brushes made of bristles
mounted on a handle.
function
Crowns.
Bridges.
Dental implants.
Interproximal surfaces.
Orthodontic appliances.

68. Non toxic for patient dentist and staff.
Non irritating to oral cavity and tooth tissues.
Non allergenic
Non carcinogenic.
The ideal requirements need to preventive dental material

69. References
1- Harry’s Cosmeticology, Volume 1.
2- Haward I. Maibach Hand book of
cosmetic science and Technology.

70. Questions?
What is preventive Dental Materials?