Root canal filling lenka.roubalikova@tiscali.cz.

Prezentace na téma: "Root canal filling lenka.roubalikova@tiscali.cz."— Transkript prezentace:

1 Root canal filling

2 Root canal filling Good coronal, Middle Apical seal.
1 Good coronal, Middle Apical seal. 2 3 Quality guidelines for endodontic treatment, European Society of of Endodontology (ESE), 1994

3 Root canal fillings

4 Ideal root canal filling (Grossman 1988)
Easy mixing Sufficient working time Good seal X- ray contrast Easy removal No shrinkage Long term volume stability No bacterial growing No permeability for fluids Biocompatibility No staining

5 Classification of root canal fillings
Solid Semisolid Pastes

6 Guttapercha Dried juice of the Taban tree (Isonandra percha) (gutta)
1,4 - polyisoprene Crystallin structure (60%) Brittle

7 Guttapercha Beta phase Alpha phase 42 – 49 °C plastic
Gamma phase 56 – 62° (amorphous) Cooling process very slowly (less than 0,5°C) – alpha phase normal cooling– beta phase

8 Sealers Chemically curing plastic materiáls
Good adhesion to root canal walls as well as solid cones X- ray contrast Biocompatibility

9 Sealers Zinc Oxide-Eugenol Chloropercha Calciumhydroxide Resins
Glasionomer Silicone

10 Sealers Importance Filling of the spaces between the solid cones
Seal of the root canal filling

11 Zinc - Oxid Eugenol Powder: Zinc oxide Liquid: Eugenol Acidic resins
Good adhesivity, antimikrobial effect, cytotoxic. resorbable)

12 Zink Oxid Eugenol sealers
Pulp Canal Sealer (Kerr, USA)) Tubuli- Seal (Kerr, USA) Caryosan (Spofa Dental, ČR)

13 Chloropercha Powder Canadian balsam Resins Guttapercha Zinc oxide
Liquid: Chloroform

14 Chloropercha Vlastnosti: Good adhesivity Shrinkage Toxicity

15 Calciumhydroxide sealers
Base ( powder) Calcium hydroxide Zinc oxide Other components and vehicula

16 Kalciumhydroxidové sealery
Catalystr (paste) Zinc stearat Titanium dioxide Baryum sulphate or Eugenol,. Eukalypt others

17 Kalciumhydroxide sealers
Increase of the healig potential of periapical tissues Antibacterial effect Easy manipulation But! Resorbable if not homogeneus Not suitable for the single cone technique

18 Resins Rezorcin formaldehyd Epoxide Polyketone Metacrylate

19 Rezorcin – formaldehyd resins
Toxicity N2, Endomethason, Riebler´s paste, Foredent

20 Epoxide resin Base (powder, paste) Bismuth oxid Titanium dioxide
Hexametylentetramine (Silver) Catalyst (liquide, paste) Bisphenoldiglycidylether

21 Epoxid resin (advantages)
Long working time Hydrophilic (good penetration) Good adhesion to the root canal walls Volume stability No dissolution Antibacterial

22 Epoxidové pryskyřice (disadvantages)
Difficult removal Staining Initiatiory roxicity No suitable for the single cone technique !

23 Polyketone Base Zinc oxide Bismuth phosphate Hexametylentetramine
Liquid Bisphenolglycidylether and other components

24 Polyketon resins Advantages Good adhesion No contraction
No dissolution Disadvantages High stickness Not removable Products: Diaket, Diaket A (3M ESPE)

25 Methacrylate resins Endo ReZ (Ultradent) – UDMA
For injection – single cone technique Epiphany (Pentron) Bis- GMA, etoxy bif- GMA, hydrophilic bifunctional methacrylates Calcium hydroxide, baryum sulphate, baryum glass silica. Sealer in combination with Resilon

26 Glasionomer sealers Base (powder) Aluminium silicate glass Liquid
Polyacrylic acid, polymaleic acid, tartaric acid

27 Glasionomer sealers (Advantages and disadvantages)
Curing under wett conditions, chemical bonding to hard dental tissues, no staining Disadvantages Short working time, difficult removal, porous Products Ketac Endo (3M ESPE), Endion (VOCO)

28 Silicon based sealers Polyvinylsiloxane (ev. in mixture with powdered
guttapercha Biocompatibility Hydrofillic Further investigation desirable.

29 Root canal filling A cone inside the sealer – core material
Guttapercha Resilon Silver cones Custom cones

30 Root canal filling Guttapercha Trans isomer of polyisoprene
2 crystalline forms (alpha, beta) Beta – room temperature Alpha after heating Various process of cooling Extremly slow cooling: Aplha phase recrystalize. 65°. Less shrinkage, more dimensionally stable

31 Root canal filling Guttapercha 20% gutta-percha 65% zink oxide
10% radioopacifiers 5% plasticizers

32 Root canal filling Guttapercha
Cones: conventional and standardized sizes Conventional: dimension of the tip and body Standardized cones are designed to match the taper of the instrument.

33 Root canal fillings - forms
Points (Cones) Materials for injection Plastic materials

34 Instruments Lentulo Compactors Compactors - carriers Others

35 Lentulo delivers pastes 1,5 – 2 mm ahead at most for Ca (OH)2

36 Compactors Spreader Pointed Vertical introduction Lateral condensation
technique

37 Compactors Plugger Not pointed Vertical introduction
Vertical condensatuion - compaction

38 Filling techniques Cold Warm

39 Single cone technique Easy Fast Good control of WL
Standard round preparation – risk of leakage Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

40 Shrinkage, difficult removal
Paste only Shrinkage, difficult removal

41

42 Lateral condensation Lateral compaction
Standard cold technique Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

43 Warm lateral condensation

44

45

46 Laterální kondenzace Centrální čep

47 Vertical condensation

48

49 Injection Rychlá technika Možná extruze sealeru Teplo

50 Perfektní hermetický uzávěr i u kanálků s nepravidelným tvarem

51 Fáze plnění 2. Backfill BeeFillem hermeticky uzavřeme a zaplníme zbývající část kanálku kulatého i oválného a uzavřeme postranní ramifikace ve vrchních částech kanálku.

52 Root canal filling Methods

53 Filling Always combination Plastic material – sealer Guttapercha

54 Paste only No good seal, today only temporary filling
using calcium hydroxide

55 Cold techniques Single cone technique Lateral condensation
Guttapercha cone (cones) and sealer

56 Single cone Lateral condensation

57 Compactor for lateral condensation Spreader

58

59 Vertical compaction (condensation) gutaperča sealer

60 Injection guttapercha sealer

61 Vertical compaction guttapercha sealer

62 Warm techniques – using heated guttapercha
Compactor - plugger

63 Paste carrier -Lentulo
Delivers the plastic material forward 1,5 – 2 mm before the front Most often for Ca (OH)2

64 Kompaktory Kořenové cpátko - spreader Hladký povrch, špička
Zasunutí do kořenového kanálku vertikálně Laterální kondenzace gutaperčových čepů

65 Kompaktory Kořenové cpátko - plugger Hladký povrch, rovné čelo
Zasunutí do kořenového kanálku vertikálně Vertikální kondenzace kondenzace gutaperči

66 Technika jednoho čepu Jednoduchá Rychlá Dobrá kontrola délky
Standardní,okrouhlá preparace, riziko netěsnosti u oválných kanálků Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

67 Technika jednoho čepu Jednoduchá Rychlá Dobrá kontrola délky
Standardní,okrouhlá preparace, riziko netěsnosti u oválných kanálků Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

68 Laterální kondenzace Dobrá kontrola pracovní délky
Masa gutaperči není kompaktní Časově náročnější Možné riziko fraktury kořene Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

69 Teplá laterální kondenzace
Horší kontrola pracovní délky Časová náročnost Teplo

70 Vertikální kondenzace
Obtížnější kontrola pracovní délky Možná extruze sealeru Teplo

71

72 Injekční aplikace rozehřáté gutaperči
Rychlá technika Možná extruze sealeru Teplo

73 Root canal filling Methods

74 Filling Plastic material – sealer Guttapercha

75 Paste only

76

77 Cold techniques Single cone technique Lateral condensation

78 Single cone technique lenka.roubalikova@tiscali.cz
Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

79 Lateral condensation lenka.roubalikova@tiscali.cz
Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

80 Laterální kondenzace Centrální čep

81 Compactor Sperader

82 Warm techniques Vertical condensation Injection Thermafil
Thermomechanical condensation – Mc Spadden

83

84 Vertical compaction (condensation) guttapercha sealer

85 Injection guttapercha sealer

86 Vertical compaction after injection guttapercha sealer

87 Warm lateral condensation

88 Vertical condensation

89

90 Injection of heated guttapercha

91 Thermomechanical condensation
Guttapercha is heated using a special compactor Wesselink, P.: Root filling techniques, Textbook of Endodontology; p , Blackwell Munksgaard 2003, Oxford

92 Thermafil Guttapercha on plastic carrier is heated ina special oven and put into the root canal.

93 Compactor for vertical condensation - plugger

94 Power driven filling - lentulo
Delivers the paste forward 1,5 – 2 mm before the front Mostly for Ca (OH)2

95 Compactors Spreader Pointed instrument Lateral condensation

96 Compactors Plugger Straight front Vertical action - condensation