Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Odontologia da UNESP |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772013000600008 |
Resumo: | OBJECTIVE: The objective of the present study was to investigate the thermal effects of Er,Cr:YSGG laser irradiation (1.5W/20Hz) on yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP). MATERIAL AND METHOD: Fifteen disks of Y-TZP (AS Technology TitaniumFIX, São José dos Campos, Brazil) with 5 mm diameter and 3 mm high standardized with CAD-CAM were used. The Y-TZP disks were randomized in three groups (n=5): Y-TZP-G1 = control (no laser treatment); Y-TZP-G2 = Y-TZP + Er,Cr:YSGG laser (air-water cooling proportion 80%/25%); Y-TZP-G3 = Y-TZP + Er,Cr:YSGG laser (air-water cooling proportion 80%/0%). A thermopar (SmartMether, Novus, Porto Alegre, RS, Brazil) was attached to a digital thermometer (SmartMether, Novus, Porto Alegre, RS, Brazil) fixed to the opposite irradiated surface. The temperature gradients (ΔT) were calculated (ΔT = Final Temperature - Initial Temperature) for each group. Values were statistically analyzed by one-way ANOVA at the 95% confidence level and compared by Tukey post-hoc test (α=0.05) for each material. One sample of each group was analyzed by confocal white light microscopy. RESULT: The ANOVA test showed significant differences for the factor "laser" (p<.001). The temperature gradients (ΔT value) showed the following results: Y-TZP-G1 = 0 ºC; Y-TZP-G2 = -1.4 ºC and Y-TZP-G3 = 21.4 ºC. The ΔT values (ºC) of the non-refrigerated group were higher than the refrigerated group. The roughness value (Ra) ranged from 4.50 to -33.65 µm. CONCLUSION: The water refrigeration for Er,Cr:YSGG irradiation is essential to avoid thermal increase in the Y-TZP. |
id |
UNESP-16_ec6ef27e45b7a8d190299e9393693150 |
---|---|
oai_identifier_str |
oai:scielo:S1807-25772013000600008 |
network_acronym_str |
UNESP-16 |
network_name_str |
Revista de Odontologia da UNESP |
repository_id_str |
|
spelling |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiationCeramicstemperatureconfocal microscopydental implantationlasersOBJECTIVE: The objective of the present study was to investigate the thermal effects of Er,Cr:YSGG laser irradiation (1.5W/20Hz) on yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP). MATERIAL AND METHOD: Fifteen disks of Y-TZP (AS Technology TitaniumFIX, São José dos Campos, Brazil) with 5 mm diameter and 3 mm high standardized with CAD-CAM were used. The Y-TZP disks were randomized in three groups (n=5): Y-TZP-G1 = control (no laser treatment); Y-TZP-G2 = Y-TZP + Er,Cr:YSGG laser (air-water cooling proportion 80%/25%); Y-TZP-G3 = Y-TZP + Er,Cr:YSGG laser (air-water cooling proportion 80%/0%). A thermopar (SmartMether, Novus, Porto Alegre, RS, Brazil) was attached to a digital thermometer (SmartMether, Novus, Porto Alegre, RS, Brazil) fixed to the opposite irradiated surface. The temperature gradients (ΔT) were calculated (ΔT = Final Temperature - Initial Temperature) for each group. Values were statistically analyzed by one-way ANOVA at the 95% confidence level and compared by Tukey post-hoc test (α=0.05) for each material. One sample of each group was analyzed by confocal white light microscopy. RESULT: The ANOVA test showed significant differences for the factor "laser" (p<.001). The temperature gradients (ΔT value) showed the following results: Y-TZP-G1 = 0 ºC; Y-TZP-G2 = -1.4 ºC and Y-TZP-G3 = 21.4 ºC. The ΔT values (ºC) of the non-refrigerated group were higher than the refrigerated group. The roughness value (Ra) ranged from 4.50 to -33.65 µm. CONCLUSION: The water refrigeration for Er,Cr:YSGG irradiation is essential to avoid thermal increase in the Y-TZP.Universidade Estadual Paulista Júlio de Mesquita Filho2013-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772013000600008Revista de Odontologia da UNESP v.42 n.6 2013reponame:Revista de Odontologia da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP10.1590/S1807-25772013000600008info:eu-repo/semantics/openAccessCassoni,AlessandraMiranda,Pérsio VasconcelosRodrigues,José AugustoHeluy,Silvia Coelho de LacerdaBlay,AlbertoShibli,Jamil Awadeng2013-12-13T00:00:00Zoai:scielo:S1807-25772013000600008Revistahttps://www.revodontolunesp.com.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||adriana@foar.unesp.br1807-25770101-1774opendoar:2013-12-13T00:00Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
title |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
spellingShingle |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation Cassoni,Alessandra Ceramics temperature confocal microscopy dental implantation lasers |
title_short |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
title_full |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
title_fullStr |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
title_full_unstemmed |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
title_sort |
Thermal effects on zirconia substrate after Er,Cr:YSGG irradiation |
author |
Cassoni,Alessandra |
author_facet |
Cassoni,Alessandra Miranda,Pérsio Vasconcelos Rodrigues,José Augusto Heluy,Silvia Coelho de Lacerda Blay,Alberto Shibli,Jamil Awad |
author_role |
author |
author2 |
Miranda,Pérsio Vasconcelos Rodrigues,José Augusto Heluy,Silvia Coelho de Lacerda Blay,Alberto Shibli,Jamil Awad |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Cassoni,Alessandra Miranda,Pérsio Vasconcelos Rodrigues,José Augusto Heluy,Silvia Coelho de Lacerda Blay,Alberto Shibli,Jamil Awad |
dc.subject.por.fl_str_mv |
Ceramics temperature confocal microscopy dental implantation lasers |
topic |
Ceramics temperature confocal microscopy dental implantation lasers |
description |
OBJECTIVE: The objective of the present study was to investigate the thermal effects of Er,Cr:YSGG laser irradiation (1.5W/20Hz) on yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP). MATERIAL AND METHOD: Fifteen disks of Y-TZP (AS Technology TitaniumFIX, São José dos Campos, Brazil) with 5 mm diameter and 3 mm high standardized with CAD-CAM were used. The Y-TZP disks were randomized in three groups (n=5): Y-TZP-G1 = control (no laser treatment); Y-TZP-G2 = Y-TZP + Er,Cr:YSGG laser (air-water cooling proportion 80%/25%); Y-TZP-G3 = Y-TZP + Er,Cr:YSGG laser (air-water cooling proportion 80%/0%). A thermopar (SmartMether, Novus, Porto Alegre, RS, Brazil) was attached to a digital thermometer (SmartMether, Novus, Porto Alegre, RS, Brazil) fixed to the opposite irradiated surface. The temperature gradients (ΔT) were calculated (ΔT = Final Temperature - Initial Temperature) for each group. Values were statistically analyzed by one-way ANOVA at the 95% confidence level and compared by Tukey post-hoc test (α=0.05) for each material. One sample of each group was analyzed by confocal white light microscopy. RESULT: The ANOVA test showed significant differences for the factor "laser" (p<.001). The temperature gradients (ΔT value) showed the following results: Y-TZP-G1 = 0 ºC; Y-TZP-G2 = -1.4 ºC and Y-TZP-G3 = 21.4 ºC. The ΔT values (ºC) of the non-refrigerated group were higher than the refrigerated group. The roughness value (Ra) ranged from 4.50 to -33.65 µm. CONCLUSION: The water refrigeration for Er,Cr:YSGG irradiation is essential to avoid thermal increase in the Y-TZP. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772013000600008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772013000600008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1807-25772013000600008 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
dc.source.none.fl_str_mv |
Revista de Odontologia da UNESP v.42 n.6 2013 reponame:Revista de Odontologia da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Revista de Odontologia da UNESP |
collection |
Revista de Odontologia da UNESP |
repository.name.fl_str_mv |
Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
||adriana@foar.unesp.br |
_version_ |
1748958558515363840 |