polyethers and polysulfides
DESCRIPTION
Polyethers and polysulfides for dental usesTRANSCRIPT
Dr Alfredo Nevaacuterez Rascoacuten
Polyethers and polysulfides
To make individual impressions
for the procedures of prosthetic restorations
partial prints
In
preparation
of single or
multiple
deposit
Printing for fixed
bridgework
In total impressions
(totally or partially
edentulous patients)
For high
accuracy
and fidelity
of detail
polysulfide
bullfoundation
Low molecular weight (4000 approx)
Presence of reactive groups SH mercaptans in the polymer chain
FILLING
bullTo give consistency
Fill best known is titanium dioxide zinc sulfide
and silica in proportion 12 to 50
Lithopone is a white pigment mixture consisting of
zinc sulfide and barium sulfate
THROTTLE
Using 3 types of accelerators
Dioxide or lead peroxide (T rapidly reactivates and environment
curing reaction is maintained for a longer than others
Shortening occurs lead peroxide in the polymer chain by
oxidation of the terminal groups SH
Hidroxiperoacutexido colorless organic t-butyl or amine activator with
In order to remove the brown color of lead dioxide
These compounds have little dimensional stability and contract by the
Evaporation of the volatile constituent of hidroxiperoacutexido
Another type is the Cu hydroxide gives a blue-green is better
dimensional stability but may be more toxic than the PbO2 and its product
end is unstable
SULFUR
To facilitate the polymerization of the poly sulfides sulfur is added
as an advocate
Which facilitates the chemical reaction
and stearic acid to assist the polymerization
DIBUTYLPHTHALATE
Is used as a plasticizer
Is made between the mercaptan or paste and lead dioxide or accelerator
To give a polysulfide
polysulfide
Lead Dioxide
polysulfide+ lead sulfide+ water (base) (acelerador)
(material totalmente polimerizado)
Good dimensional stability to make an impression
Finish line is clearly visible
No special equipment
DISADVANTAGES
Single cell is required
Not tolerate water in the furrows
unpleasant odor
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
To make individual impressions
for the procedures of prosthetic restorations
partial prints
In
preparation
of single or
multiple
deposit
Printing for fixed
bridgework
In total impressions
(totally or partially
edentulous patients)
For high
accuracy
and fidelity
of detail
polysulfide
bullfoundation
Low molecular weight (4000 approx)
Presence of reactive groups SH mercaptans in the polymer chain
FILLING
bullTo give consistency
Fill best known is titanium dioxide zinc sulfide
and silica in proportion 12 to 50
Lithopone is a white pigment mixture consisting of
zinc sulfide and barium sulfate
THROTTLE
Using 3 types of accelerators
Dioxide or lead peroxide (T rapidly reactivates and environment
curing reaction is maintained for a longer than others
Shortening occurs lead peroxide in the polymer chain by
oxidation of the terminal groups SH
Hidroxiperoacutexido colorless organic t-butyl or amine activator with
In order to remove the brown color of lead dioxide
These compounds have little dimensional stability and contract by the
Evaporation of the volatile constituent of hidroxiperoacutexido
Another type is the Cu hydroxide gives a blue-green is better
dimensional stability but may be more toxic than the PbO2 and its product
end is unstable
SULFUR
To facilitate the polymerization of the poly sulfides sulfur is added
as an advocate
Which facilitates the chemical reaction
and stearic acid to assist the polymerization
DIBUTYLPHTHALATE
Is used as a plasticizer
Is made between the mercaptan or paste and lead dioxide or accelerator
To give a polysulfide
polysulfide
Lead Dioxide
polysulfide+ lead sulfide+ water (base) (acelerador)
(material totalmente polimerizado)
Good dimensional stability to make an impression
Finish line is clearly visible
No special equipment
DISADVANTAGES
Single cell is required
Not tolerate water in the furrows
unpleasant odor
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
polysulfide
bullfoundation
Low molecular weight (4000 approx)
Presence of reactive groups SH mercaptans in the polymer chain
FILLING
bullTo give consistency
Fill best known is titanium dioxide zinc sulfide
and silica in proportion 12 to 50
Lithopone is a white pigment mixture consisting of
zinc sulfide and barium sulfate
THROTTLE
Using 3 types of accelerators
Dioxide or lead peroxide (T rapidly reactivates and environment
curing reaction is maintained for a longer than others
Shortening occurs lead peroxide in the polymer chain by
oxidation of the terminal groups SH
Hidroxiperoacutexido colorless organic t-butyl or amine activator with
In order to remove the brown color of lead dioxide
These compounds have little dimensional stability and contract by the
Evaporation of the volatile constituent of hidroxiperoacutexido
Another type is the Cu hydroxide gives a blue-green is better
dimensional stability but may be more toxic than the PbO2 and its product
end is unstable
SULFUR
To facilitate the polymerization of the poly sulfides sulfur is added
as an advocate
Which facilitates the chemical reaction
and stearic acid to assist the polymerization
DIBUTYLPHTHALATE
Is used as a plasticizer
Is made between the mercaptan or paste and lead dioxide or accelerator
To give a polysulfide
polysulfide
Lead Dioxide
polysulfide+ lead sulfide+ water (base) (acelerador)
(material totalmente polimerizado)
Good dimensional stability to make an impression
Finish line is clearly visible
No special equipment
DISADVANTAGES
Single cell is required
Not tolerate water in the furrows
unpleasant odor
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
SULFUR
To facilitate the polymerization of the poly sulfides sulfur is added
as an advocate
Which facilitates the chemical reaction
and stearic acid to assist the polymerization
DIBUTYLPHTHALATE
Is used as a plasticizer
Is made between the mercaptan or paste and lead dioxide or accelerator
To give a polysulfide
polysulfide
Lead Dioxide
polysulfide+ lead sulfide+ water (base) (acelerador)
(material totalmente polimerizado)
Good dimensional stability to make an impression
Finish line is clearly visible
No special equipment
DISADVANTAGES
Single cell is required
Not tolerate water in the furrows
unpleasant odor
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
Is made between the mercaptan or paste and lead dioxide or accelerator
To give a polysulfide
polysulfide
Lead Dioxide
polysulfide+ lead sulfide+ water (base) (acelerador)
(material totalmente polimerizado)
Good dimensional stability to make an impression
Finish line is clearly visible
No special equipment
DISADVANTAGES
Single cell is required
Not tolerate water in the furrows
unpleasant odor
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
Good dimensional stability to make an impression
Finish line is clearly visible
No special equipment
DISADVANTAGES
Single cell is required
Not tolerate water in the furrows
unpleasant odor
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
WORKING TIME It is approx Like 5-7 minutes hydrocolloids
based on agar-agar and alginates than
CURING TIME
The curing time is 8-13 minutes
It can be modified by several methods
Higher temperature accelerates the polymerization
Base-rate accelerator less time basis
accelerates
Adding a drop of water accelerates the polymerization mixture
but it is more difficult to mix and monitor their effect
Adding a drop of oleic acid slows time
polymerization
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
In these materials the base polymer is a
cyclic ether in terminal groups imino groups
(triangles are similar to epoxy but with
nitrogen instead of oxygen in a vertex)
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
Polyether based etilenoamina ring terminals silica filler A plasticizer ftalatode filled with glycol ether bull Accelerator or catalyst or trigger Thinner Element to provide proper consistency to the material Is octyl phthalate and 5 methyl cellulose
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
ndashFlexibility of 33 -Elastic Recovery 99 -Contraction from 0 2 03 at 24 hrs Special Considerations -Hydrophilic
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
The two pastes are colors that contrast each other which facilitates efficient mixing It is important that the print is placed in position and kept still to avoid tensions that can lead to distortion The polymerization is completed in 5 minutes
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
It comes in a single consistency low acceptance is coming in a single consistency Its use should only cover up to 4 teeth and these must not have periodontal disease and being too rigid cause discomfort to the withdrawal This aimed at elaboration of fixed prosthetics (crowns and bridges)
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
Excellent dimensional stability High level of fidelity Tear strength
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
Smell and taste unpleasant Difficult handling hard rigid material removal from mouth
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf
bullPHILLIPS CIENCIA DE LOS MATERIALES DENTALES
bullhttpwwwuaehedumxdocenciaP_Presentaciones
icsaasignaturaM_D_6pdf