Management of incomplete root apex for vital tooth

Endodontic lecture

1. Management of
incomplete for vitaltooth
Supervisors : Dr.BasemAbu Qubi’
Dr.ShurooqAl-Bakri
Presented By :CezarE. Laham

2. Outline :
•1-Embryology “ Tooth development “ ---3 min’s
•2-Factors influence root development ---1 min
•3-Management of open apex for vital tooth
“Apexogenesis”
•4-Techniques & Materials
•5-Conclusion
•6-References
8 mins
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3. 1-Embryology

5. Title and Content Layout with Chart
Prognosis
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6. 2-Factors influence
root development

7. •1-Dental Caries
•2-Trauma
•3-Iatrogenic “ Ortho. / Over-instrumentation”
•4-Others
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8. 3-Management of
open apex for vital
tooth “Apexogenesis”

9. Definition
•Apexogenesis
:
•-
Physiologic process
•-
Formation of apex in vital, young, permanent teeth with
appropriate vital pulp therapy
The Goals
1-development of root length for favourablecrown:rootratio
2-preserving pulp vitality to secure further root development
and tooth maturation
.
3-Promoting a root end closure
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11. 4-Techniques & Materials
1-Indirect pulp capping
2-Direct pulp capping
3-Pulpotomy
1-Ca(OH)2
2-MTA
Vital Pulp therapy
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12. 1-Indirect pulp capping
Deep Carious lesion WITHOUT pulp exposure or any signs or
symptoms of pulp degeneration
OBJECTIVE: Preserve the vitality of the pulp by completely
removing the carious infected dentin followed by placement of a
materialthat would enable the affected dentin to remineralizeby
stimulating the underlying ododntoblasts to form tertiary dentin.
INDICATIONS:Thin residual dentinal tissue “less than 2 mm “ with
normal pulp or with reversible pulpitis !
CONTRAINDICATIONS: pulp exposure, root resorption, irreversible
pulpitis , necrotic pulp .
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13. Add a Slide Title -4
PULP CAPPING AGENT ADVANTAGES DISADVANTAGES
1)Calcium hydroxide. 1)Excellent antibacterial properties.
2)Induction of mineralization.
3)Low cytotoxicity.
1)Highly soluble in oral fluids.
2)Subject to dissolution over time.
3)Presence of tunnels in reparative
dentin.(tunnel defect.)
4)Lack of adhesion.
PULPCAPPING
AGENT
ADVANTAGES DISADVANTAGES.
2)Mineral trioxide aggregate.1)Good biocompatibility.
2)Lesspulpal inflammation.
3)More predictable hard tissue barrier formation in
comparison to calcium hydroxide.
4)Radiopacity.
1)More expensive.
2)Poor handling characteristics.
3)Two step procedure .
4)High solubility.
MATERIALS USED AS PULP CAPPING AGENT….
3 powder : 1 Liquid
Setting time : 5mins
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14. DEEP CARIOUS LESION..
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15. Tertiary Dentin
formation
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16. Procedure :-
It could be performed as a single or two step approach.
asymptomatic symptomatic
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17. a)Use of local Anesthesiaand isolate with rubber dam.
b)A slow speed hand piece with round burs is used to
remove the superficial debris and majority of soft
infected dentin without exposing the pulp.
c)Deepest layer of infected dentin is covered with a
hard setting calcium hydroxide preparation and sealed
with an overlying base of reinforced zinc-oxide eugenol
preparation.
d)This sealed cavity is not disturbed for6-8 weeks.
FIRST APPOINTMENT…
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18. A bitewing radiograph of the treated tooth is
obtained.
Use local Anesthesiaand isolate with rubber dam.
The previous remaining soft, deep, brownish red
affected dentin will have changed to lighter brownish
graycolour and most importantly harder in nature.
The entire floor is covered with calcium hydroxide
preparation.
When clinical and radiographic findings are negative
the final restoration is placed.
SECOND APPOINTMENT.
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20. Defined as a procedure in which the exposed vital pulp is
covered with a protective dressing or base placed directly
over the site of exposure in an attempt to preserve the pulp
vitality.
OBJECTIVES:
a) preservation of vitality of the radicular pulp.
b) relief of pain in patients with acute pulpagia.
c) ensuring the continuity of normal apexogenesis
in immature permanent teeth.
2-Direct pulp capping
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21. Tinalbridge
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22. INDICATIONS:
a) asymptomatic conditions.
b) small exposure less than 0.5mm in diameter
c)haemorrhage from the exposure site is easily controlled.
d) the exposure occurred is clean
CONTRAINDICATION:
Large carious exposure ,irreversible pulpitis, necrotic pulp
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23. First appointment:
-Anesthetize and isolate with rubber dam.
-Clean the cavity with chlorhexidinesolution.
-Rinse with anesthetic or sterile saline.
-using a sterile cotton pellet control the bleeding.
-Mix the capping agent & apply it to exposure site.
-Temporize and observe for 5-10 days.
Second appointment
: “after 10-14 day”
-check signs+ symptoms
-P.A radiograph
-remove TF
-Permanent restoration -->Then follow up
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25. 3-Pulpotomy
Total removal of coronal pulp tissue
Partial removal of coronal pulp tissue =Cvek
defined as a procedure in which a portion of
exposed vital pulp is surgically removed as a
means of preserving the vitality and function of the
remaining radicular portion. “so root development
continues”
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26. Indications
-Mechanical or carious exposures in permanent teeth with
incomplete root formation.
-Traumatic exposures of longer duration where coronal
pulp is inflamed in young permanent teeth.
-Pulpallyinvolved children’s permanent teeth in which the
root apex is not completely formed.
-Carious pulp, exposure in an asymptomatic primary tooth;
e.xa child’s posterior tooth with wide open apices that has
a small, asymptomatic carious exposure.
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27. Contraindications
-Patients with irreversible pulpitis.
-Abnormal sensitivity to heat and cold.
-Chronic pulpalgia.
-Tenderness to percussion or palpation because of pulp
disease.
-Periradicularradiographic changes.
-Marked constriction of pulp chamber or root canals
(calcifications)
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28. Clinical Procedure
-Anesthetize.
-Caries removal.
-Isolation.
-Access: 1-For cervical pulpotomythe access cavity
should be large enough to expose the
entire chamber.
2-For a partial pulpotomy( Cvek’spulpotomy) only
the pulp horns or superficial chamber tissue is
exposed with access preparation.
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29. -Control bleeding.
-Placement of medicaments:
_ Calcium hydroxide.
_ MTA.
_ Formacresol.
-Coronal seal.
-Recall
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31. Treatment outcome
-The hard tissue barrier over the pulp may be
observed as early as 6 weeks.
-The apexogenesisor completion of root may
take unto 2-4 years.
When is pulpotomyconsidered successful:
1-Clinically the tooth should be asymptomatic
without tenderness and mobility.
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32. 2-The periodontiumshould remain healthy
without pockets or sinus.
3-The tooth should respond normally to the pulp
vitality tests.
4-Radiographicallya calcific barrier should be seen .
5-There should not be external or internal resorption.
6-The root formation should have been completed
with the apex closed.
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References:
1-McDonald “Pediatric dentistry”
2-Principles and practice “by M. Torbinejad
3-Art and sience
4-Lecture notes

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