Influence of radiotherapy on the dentin properties and bond strength
Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (V...
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Gespeichert in:
| Autor*in: |
Rodrigues, Renata Borges [verfasserIn] Soares, Carlos José [verfasserIn] Junior, Paulo Cézar Simamoto [verfasserIn] Lara, Vitor Carvalho [verfasserIn] Arana-Chavez, Victor Elias [verfasserIn] Novais, Veridiana Resende [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Übergeordnetes Werk: |
Enthalten in: Clinical Oral Investigations - Springer-Verlag, 2001, 22(2017), 2 vom: 04. Aug., Seite 875-883 |
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| Übergeordnetes Werk: |
volume:22 ; year:2017 ; number:2 ; day:04 ; month:08 ; pages:875-883 |
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| DOI / URN: |
10.1007/s00784-017-2165-4 |
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SPR007819781 |
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| 245 | 1 | 0 | |a Influence of radiotherapy on the dentin properties and bond strength |
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| 520 | |a Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. | ||
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| 650 | 4 | |a Elastic modulus |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a FTIR |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Hardness |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Radiotherapy |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a Junior, Paulo Cézar Simamoto |e verfasserin |4 aut | |
| 700 | 1 | |a Lara, Vitor Carvalho |e verfasserin |4 aut | |
| 700 | 1 | |a Arana-Chavez, Victor Elias |e verfasserin |4 aut | |
| 700 | 1 | |a Novais, Veridiana Resende |e verfasserin |4 aut | |
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10.1007/s00784-017-2165-4 doi (DE-627)SPR007819781 (SPR)s00784-017-2165-4-e DE-627 ger DE-627 rakwb eng Rodrigues, Renata Borges verfasserin aut Influence of radiotherapy on the dentin properties and bond strength 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. Dentistry (dpeaa)DE-He213 Elastic modulus (dpeaa)DE-He213 FTIR (dpeaa)DE-He213 Hardness (dpeaa)DE-He213 Radiotherapy (dpeaa)DE-He213 Scanning electron microscopy (dpeaa)DE-He213 Soares, Carlos José verfasserin aut Junior, Paulo Cézar Simamoto verfasserin aut Lara, Vitor Carvalho verfasserin aut Arana-Chavez, Victor Elias verfasserin aut Novais, Veridiana Resende verfasserin aut Enthalten in Clinical Oral Investigations Springer-Verlag, 2001 22(2017), 2 vom: 04. Aug., Seite 875-883 (DE-627)SPR007794231 nnns volume:22 year:2017 number:2 day:04 month:08 pages:875-883 https://dx.doi.org/10.1007/s00784-017-2165-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 22 2017 2 04 08 875-883 |
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10.1007/s00784-017-2165-4 doi (DE-627)SPR007819781 (SPR)s00784-017-2165-4-e DE-627 ger DE-627 rakwb eng Rodrigues, Renata Borges verfasserin aut Influence of radiotherapy on the dentin properties and bond strength 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. Dentistry (dpeaa)DE-He213 Elastic modulus (dpeaa)DE-He213 FTIR (dpeaa)DE-He213 Hardness (dpeaa)DE-He213 Radiotherapy (dpeaa)DE-He213 Scanning electron microscopy (dpeaa)DE-He213 Soares, Carlos José verfasserin aut Junior, Paulo Cézar Simamoto verfasserin aut Lara, Vitor Carvalho verfasserin aut Arana-Chavez, Victor Elias verfasserin aut Novais, Veridiana Resende verfasserin aut Enthalten in Clinical Oral Investigations Springer-Verlag, 2001 22(2017), 2 vom: 04. Aug., Seite 875-883 (DE-627)SPR007794231 nnns volume:22 year:2017 number:2 day:04 month:08 pages:875-883 https://dx.doi.org/10.1007/s00784-017-2165-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 22 2017 2 04 08 875-883 |
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10.1007/s00784-017-2165-4 doi (DE-627)SPR007819781 (SPR)s00784-017-2165-4-e DE-627 ger DE-627 rakwb eng Rodrigues, Renata Borges verfasserin aut Influence of radiotherapy on the dentin properties and bond strength 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. Dentistry (dpeaa)DE-He213 Elastic modulus (dpeaa)DE-He213 FTIR (dpeaa)DE-He213 Hardness (dpeaa)DE-He213 Radiotherapy (dpeaa)DE-He213 Scanning electron microscopy (dpeaa)DE-He213 Soares, Carlos José verfasserin aut Junior, Paulo Cézar Simamoto verfasserin aut Lara, Vitor Carvalho verfasserin aut Arana-Chavez, Victor Elias verfasserin aut Novais, Veridiana Resende verfasserin aut Enthalten in Clinical Oral Investigations Springer-Verlag, 2001 22(2017), 2 vom: 04. Aug., Seite 875-883 (DE-627)SPR007794231 nnns volume:22 year:2017 number:2 day:04 month:08 pages:875-883 https://dx.doi.org/10.1007/s00784-017-2165-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 22 2017 2 04 08 875-883 |
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10.1007/s00784-017-2165-4 doi (DE-627)SPR007819781 (SPR)s00784-017-2165-4-e DE-627 ger DE-627 rakwb eng Rodrigues, Renata Borges verfasserin aut Influence of radiotherapy on the dentin properties and bond strength 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. Dentistry (dpeaa)DE-He213 Elastic modulus (dpeaa)DE-He213 FTIR (dpeaa)DE-He213 Hardness (dpeaa)DE-He213 Radiotherapy (dpeaa)DE-He213 Scanning electron microscopy (dpeaa)DE-He213 Soares, Carlos José verfasserin aut Junior, Paulo Cézar Simamoto verfasserin aut Lara, Vitor Carvalho verfasserin aut Arana-Chavez, Victor Elias verfasserin aut Novais, Veridiana Resende verfasserin aut Enthalten in Clinical Oral Investigations Springer-Verlag, 2001 22(2017), 2 vom: 04. Aug., Seite 875-883 (DE-627)SPR007794231 nnns volume:22 year:2017 number:2 day:04 month:08 pages:875-883 https://dx.doi.org/10.1007/s00784-017-2165-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 22 2017 2 04 08 875-883 |
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10.1007/s00784-017-2165-4 doi (DE-627)SPR007819781 (SPR)s00784-017-2165-4-e DE-627 ger DE-627 rakwb eng Rodrigues, Renata Borges verfasserin aut Influence of radiotherapy on the dentin properties and bond strength 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. Dentistry (dpeaa)DE-He213 Elastic modulus (dpeaa)DE-He213 FTIR (dpeaa)DE-He213 Hardness (dpeaa)DE-He213 Radiotherapy (dpeaa)DE-He213 Scanning electron microscopy (dpeaa)DE-He213 Soares, Carlos José verfasserin aut Junior, Paulo Cézar Simamoto verfasserin aut Lara, Vitor Carvalho verfasserin aut Arana-Chavez, Victor Elias verfasserin aut Novais, Veridiana Resende verfasserin aut Enthalten in Clinical Oral Investigations Springer-Verlag, 2001 22(2017), 2 vom: 04. Aug., Seite 875-883 (DE-627)SPR007794231 nnns volume:22 year:2017 number:2 day:04 month:08 pages:875-883 https://dx.doi.org/10.1007/s00784-017-2165-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 22 2017 2 04 08 875-883 |
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Influence of radiotherapy on the dentin properties and bond strength Dentistry (dpeaa)DE-He213 Elastic modulus (dpeaa)DE-He213 FTIR (dpeaa)DE-He213 Hardness (dpeaa)DE-He213 Radiotherapy (dpeaa)DE-He213 Scanning electron microscopy (dpeaa)DE-He213 |
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Influence of radiotherapy on the dentin properties and bond strength |
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Influence of radiotherapy on the dentin properties and bond strength |
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Rodrigues, Renata Borges |
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Clinical Oral Investigations |
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Rodrigues, Renata Borges Soares, Carlos José Junior, Paulo Cézar Simamoto Lara, Vitor Carvalho Arana-Chavez, Victor Elias Novais, Veridiana Resende |
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Rodrigues, Renata Borges |
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10.1007/s00784-017-2165-4 |
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influence of radiotherapy on the dentin properties and bond strength |
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Influence of radiotherapy on the dentin properties and bond strength |
| abstract |
Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. |
| abstractGer |
Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. |
| abstract_unstemmed |
Objectives The objective of this study was to evaluate the biomechanical properties of dentin and the microtensile bond strength (μTBS) performed before or after radiotherapy (RT). Material and methods Dentin chemical composition (infrared spectroscopy—FTIR), SEM images, and mechanical properties (Vickers microhardness—VHN and elastic modulus—E) were evaluated comparing no irradiated and irradiate dentin (n = 5). RT was defined by application of 72 Gy (1.8 Gy daily, 5 days per week, during 8 weeks) with sample immersed in distilled water. μTBS evaluated three groups (n = 10): NI—no irradiated; IB—irradiation before restoration; and IA—irradiation after restoration. Resin-dentin sticks (1.0 $ mm^{2} $) were obtained and submitted to μTBS. Analysis of the bonding interface was made by confocal microscopy. Results After RT, percentage ratio of FTIR analysis showed increased absorption for all bands. SEM image showed a disorganized dentin structure. Two-way ANOVA showed increased VHN (p = 0.005) and decreased E (p < 0.001). For μTBS, one-way ANOVA and Duncan test showed significant differences among groups (p = 0.018). IB group presented the lowest bond strength values. Conclusions RT alters the absorption bands and SEM images showed a disorganization of the dentin structure. Mechanical properties were changed with increased VHN and decreased E. μTBS was affected by the radiotherapy and restoration period (before or after). Clinical relevance RT causes changes that contribute to increased risk of tooth decay. Restorative treatments can be performed using adhesive procedures, but it is preferable to be performed before of the irradiation protocol, to guarantee better adhesive properties to restoration. |
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Influence of radiotherapy on the dentin properties and bond strength |
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Soares, Carlos José Junior, Paulo Cézar Simamoto Lara, Vitor Carvalho Arana-Chavez, Victor Elias Novais, Veridiana Resende |
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