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Guided by: Department of pedodontics
Submitted by : Aditi Gupta
Dharmendra Bijapari
DEFINITIONS
INTRODUCTION
HISTORY
MORPHOLOGY
CLASSIFICATION
IDEAL REQUIREMENTS
MATERIALS USED
INDICATIONS AND CONTRAINDICATIONS
WHICH TEETH SHOULD BE SEALED?
AGE RANGES FOR SEALANT APPLICATION
TECHNIQUE OF APPLICATION
CONCLUSION
PIT : It is defined as a small pinpoint depression located at a
junction of developmental grooves or at terminals of
those grooves. The central pit describes a landmark in the
central fossae of molars where developmental grooves
join. (ash 1993)
FISSURE : It is defined as deep clefts between adjoining
cusps. They provide areas for retention of caries producing
agents. These defects occur on occlusal surfaces of molars
and premolars, with tortuous configurations that are
difficult to assess from the surfaces. These areas are
impossible to keep clean and highly susceptible to
advancement of caries lesion. (Orbans 1990)
The high susceptibility of pit and fissure to caries presents a
major dental problem and provide the rationale for caries
control of these areas.
Although only 12.5% of all tooth surfaces are occlusal, these
surfaces develop more than 2/3rd of total caries experience
of children.
Caries potential is directly related to the shape and depth of
the pits and fissure.
With this understanding ,the eradication of pit and fissure
would eliminate them as caries opportunity sites.
 A thin plastic coating placed in the pit and fissures
of the teeth to act as
a physical barrier
to decay.
As a way to prevent caries and protect the
tooth .
 The molar teeth have many fissures and pits, which
can be very difficult to keep clean.
 These are the sites most susceptible to developing
decay
Hyatt (1923) : proposed technique called as
prophylactic odontotomy.
Bodecker(1929): proposed technique called
fissure eradication.
Bunocore(1955): advocated the filling of pit
and fissure with bonded resins.
Bowen(1965): reported BIS-GMA material
development.
Mitchell and Gordan (1990) stated that the sealants can be
differentiated in the following ways:
1. Polymerization methods
a) Self activation (mixing two components)
b) Light activation:
- First generation: Ultraviolet light
- Second generation: Self cure
- Third generation: Visible light
- Fourth generation: Fluoride releasing
2. Resin systems
BIS-GMA
Urethane acrylate
3. Filled and unfilled
4. Clear or tinted
1. A viscosity allowing penetration into deep and
narrow fissures even in maxillary teeth.
2. Adequate working time
3. Rapid cure
4. Good and prolonged adhesion to the enamel
5. Low sorption and solubility
6. Resistence to wear
7. Minimum irritation to tissues
8. Cariostatic action
Resin based sealants
Glass ionomer sealants
o May or may not contain filler particles or fluoride.
o The setting reaction can be automatic(auto-
polymerised) or light activated (light-
polymerised). .
o Low viscosity resin-based RM (flowable
composite) have also been used as fissure sealant.
o retention rates 2%–80% better than the GIC
sealants.
 glass ionomer sealants :
o can adhere directly to tooth substance.
o release fluoride over time.
o Less sensitive to moisture contamination than
resin-based materials.
o Retention is a major problem with GIC
sealants, but if this concern can be resolved, there
maybe advantages to the GIC sealants through the
release of fluoride.
 all permanent molar teeth without cavitation
(i.e., free of caries or incipient caries).
 early (non- cavitated) carious lesions in children,
adolescents and young adults to reduce the
percentage of lesions that progress (Griffin et al. 2008).
 teeth that have deep and narrow pit and fissure
morphology (the caries risk is increased because of
difficulties to clean the tooth).
 teeth with stained grooves
 on the primary molars of children who are
susceptible to caries (i.e., high caries risk).
 Sealants should be placed on first and second
permanent molar teeth within 4 years after
eruption.
 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 fissures that have remained carious
free for 4 years or longer.
 the most important teeth for sealant
application are the first and second
permanent molar teeth.
 Other teeth, such as premolars, third molars or the
palatal surfaces of incisor teeth, may be considered
for sealant application, based on:
o caries risk status.
o and assessment of the tooth surface.
1. Child with occlusal caries on one of the first
permanent molar.
Seal the remaining sound first permanent molars.
2. Occlusal caries affecting one or more first
permanent molars
Need to seal the second permanent molar as soon as
they have erupted sufficiently.
3. Tooth should be sealed within 2 years of eruption.
 for some children, such as those with medical or
other conditions where the development of
caries or its treatment could put the child’s general
health at risk, sealing primary molar teeth should
be considered as part of a comprehensive caries-
preventive program .
As soon as the tooth is sufficiently erupted to
be isolated.
Time of eruption:
Primary molars
3-4 years
first permanent molars:
6-7 years
second permanent molars and premolars:
11–13 years
 it is very important to adequately isolate the teeth
because the salivary contamination is the major
cause of loss of sealants in the first year.
 Just remember
Isolate the tooth to be sealed with either a
dental dam or cotton wool rolls/isolation
shields combined with effective aspiration
Application Technique
 Sealant retention should be checked with a probe
after polymerisation to ensure that all fissures are
completely sealed.
 If any material is dislodged, the sealant should be
reapplied after re-cleaning (if necessary.
 the recall interval for high caries risk children
should not exceed 12 months.
 if isolation has been difficult to achieve or the
sealant has been applied over a suspicious
lesion, recall within 6 months.
Pit and Fissure sealants

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Pit and Fissure sealants

  • 1. Guided by: Department of pedodontics Submitted by : Aditi Gupta Dharmendra Bijapari
  • 2. DEFINITIONS INTRODUCTION HISTORY MORPHOLOGY CLASSIFICATION IDEAL REQUIREMENTS MATERIALS USED INDICATIONS AND CONTRAINDICATIONS WHICH TEETH SHOULD BE SEALED? AGE RANGES FOR SEALANT APPLICATION TECHNIQUE OF APPLICATION CONCLUSION
  • 3. PIT : It is defined as a small pinpoint depression located at a junction of developmental grooves or at terminals of those grooves. The central pit describes a landmark in the central fossae of molars where developmental grooves join. (ash 1993) FISSURE : It is defined as deep clefts between adjoining cusps. They provide areas for retention of caries producing agents. These defects occur on occlusal surfaces of molars and premolars, with tortuous configurations that are difficult to assess from the surfaces. These areas are impossible to keep clean and highly susceptible to advancement of caries lesion. (Orbans 1990)
  • 4. The high susceptibility of pit and fissure to caries presents a major dental problem and provide the rationale for caries control of these areas. Although only 12.5% of all tooth surfaces are occlusal, these surfaces develop more than 2/3rd of total caries experience of children. Caries potential is directly related to the shape and depth of the pits and fissure. With this understanding ,the eradication of pit and fissure would eliminate them as caries opportunity sites.
  • 5.  A thin plastic coating placed in the pit and fissures of the teeth to act as a physical barrier to decay. As a way to prevent caries and protect the tooth .
  • 6.  The molar teeth have many fissures and pits, which can be very difficult to keep clean.  These are the sites most susceptible to developing decay
  • 7. Hyatt (1923) : proposed technique called as prophylactic odontotomy. Bodecker(1929): proposed technique called fissure eradication. Bunocore(1955): advocated the filling of pit and fissure with bonded resins. Bowen(1965): reported BIS-GMA material development.
  • 8.
  • 9. Mitchell and Gordan (1990) stated that the sealants can be differentiated in the following ways: 1. Polymerization methods a) Self activation (mixing two components) b) Light activation: - First generation: Ultraviolet light - Second generation: Self cure - Third generation: Visible light - Fourth generation: Fluoride releasing 2. Resin systems BIS-GMA Urethane acrylate 3. Filled and unfilled 4. Clear or tinted
  • 10. 1. A viscosity allowing penetration into deep and narrow fissures even in maxillary teeth. 2. Adequate working time 3. Rapid cure 4. Good and prolonged adhesion to the enamel 5. Low sorption and solubility 6. Resistence to wear 7. Minimum irritation to tissues 8. Cariostatic action
  • 11. Resin based sealants Glass ionomer sealants
  • 12. o May or may not contain filler particles or fluoride. o The setting reaction can be automatic(auto- polymerised) or light activated (light- polymerised). . o Low viscosity resin-based RM (flowable composite) have also been used as fissure sealant. o retention rates 2%–80% better than the GIC sealants.
  • 13.  glass ionomer sealants : o can adhere directly to tooth substance. o release fluoride over time. o Less sensitive to moisture contamination than resin-based materials. o Retention is a major problem with GIC sealants, but if this concern can be resolved, there maybe advantages to the GIC sealants through the release of fluoride.
  • 14.
  • 15.  all permanent molar teeth without cavitation (i.e., free of caries or incipient caries).  early (non- cavitated) carious lesions in children, adolescents and young adults to reduce the percentage of lesions that progress (Griffin et al. 2008).  teeth that have deep and narrow pit and fissure morphology (the caries risk is increased because of difficulties to clean the tooth).  teeth with stained grooves
  • 16.  on the primary molars of children who are susceptible to caries (i.e., high caries risk).  Sealants should be placed on first and second permanent molar teeth within 4 years after eruption.
  • 17.  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 fissures that have remained carious free for 4 years or longer.
  • 18.
  • 19.  the most important teeth for sealant application are the first and second permanent molar teeth.  Other teeth, such as premolars, third molars or the palatal surfaces of incisor teeth, may be considered for sealant application, based on: o caries risk status. o and assessment of the tooth surface.
  • 20. 1. Child with occlusal caries on one of the first permanent molar. Seal the remaining sound first permanent molars. 2. Occlusal caries affecting one or more first permanent molars Need to seal the second permanent molar as soon as they have erupted sufficiently. 3. Tooth should be sealed within 2 years of eruption.
  • 21.  for some children, such as those with medical or other conditions where the development of caries or its treatment could put the child’s general health at risk, sealing primary molar teeth should be considered as part of a comprehensive caries- preventive program .
  • 22. As soon as the tooth is sufficiently erupted to be isolated. Time of eruption: Primary molars 3-4 years first permanent molars: 6-7 years second permanent molars and premolars: 11–13 years
  • 23.  it is very important to adequately isolate the teeth because the salivary contamination is the major cause of loss of sealants in the first year.  Just remember Isolate the tooth to be sealed with either a dental dam or cotton wool rolls/isolation shields combined with effective aspiration
  • 25.
  • 26.
  • 27.
  • 28.  Sealant retention should be checked with a probe after polymerisation to ensure that all fissures are completely sealed.  If any material is dislodged, the sealant should be reapplied after re-cleaning (if necessary.
  • 29.  the recall interval for high caries risk children should not exceed 12 months.  if isolation has been difficult to achieve or the sealant has been applied over a suspicious lesion, recall within 6 months.

Editor's Notes

  1. Resin-based sealants are based on acrylic (methacrylate), may or may not contain filler particles or fluoride, and the setting reaction can be automatic (auto-polymerised) or light activated (light-polymerised). Low-viscosity resin-based restorative materials (flowable composites) have also been used as fissure sealants. Glass ionomer sealants have evolved from glass ionomer cements, which can adhere directly to tooth substance.15 Glass ionomer materials release fluoride over time and have the advantage of being less sensitive to moisture contamination than resin-based materials, making them a potential alternative to resin-based sealants when moisture control is an issue
  2. Glass ionomer sealants have evolved from glass ionomer cements, which can adhere directly to tooth substance.15 Glass ionomer materials release fluoride over time and have the advantage of being less sensitive to moisture contamination than resin-based materials, making them a potential alternative to resin-based sealants when moisture control is an issue
  3. the impact of fissure sealants alone on reducing caries is likely to be less for primary teeth than for permanent teeth.