Fracture resistance and stress distribution of weakened teeth reinforced with a bundled glass fiber-reinforced resin post
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Alves Santos, Thais da Silva
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Alves Santos, Thais da Silva
[1
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Abu Hasna, Amjad
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Abu Hasna, Amjad
[1
]
Abreu, Ricardo Toledo
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Abreu, Ricardo Toledo
[1
]
Tribst, Joao Paulo Mendes
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Tribst, Joao Paulo Mendes
[2
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de Andrade, Guilherme Schmitt
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
de Andrade, Guilherme Schmitt
[2
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Borges, Alexandre Luiz Souto
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Borges, Alexandre Luiz Souto
[2
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Torres, Carlos Rocha Gomes
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Operat Dent Div, Dept Restorat Dent, Sao Jose Dos Campos, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Torres, Carlos Rocha Gomes
[3
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Carvalho, Claudio Antonio Talge
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Sao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, BrazilSao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Carvalho, Claudio Antonio Talge
[1
]
机构:
[1] Sao Paulo State Univ UNESP, Inst Sci & Technol, Endodont Div, Dept Restorat Dent, Av Francisco Jose Longo 777, BR-12245000 Sao Jose Dos Campos, SP, Brazil
[2] Sao Paulo State Univ UNESP, Inst Sci & Technol, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, Brazil
[3] Sao Paulo State Univ UNESP, Inst Sci & Technol, Operat Dent Div, Dept Restorat Dent, Sao Jose Dos Campos, Brazil
Objectives To make an in vitro assessment of fracture resistance of weakened and non-weakened teeth receiving intraradicular reinforcement using Rebilda bundled glass fiber-reinforced composite posts (GT), Rebilda conventional glass fiber posts (RP), or both systems combined (GT + RP). Materials and methods Eighty sound bovine incisors were prepared and divided randomly into eight groups as follows: (a) nWnR: without simulating weakness, and without intraradicular reinforcement; (b) WnR: simulating weakness, but without intraradicular reinforcement; (c) nWGT: without simulating weakness, but with GT; (d) WGT: simulating weakness, and with GT; (e) nWRP: without simulating weakness, but with RP; (f) WRP: simulating weakness, and with RP; (g) nWGTRP: without simulating weakness, but with GT + RP; (h) WGTRP: simulating weakness, and with GT + RP. The specimens were subjected to the load-to-fracture test using the DL-2000MF universal testing machine. The finite element method assessed the mechanical behavior and stress distribution in endodontically treated teeth. Results The groups nWGTRP and WGTRP presented the best results in the load-to-fracture test, with the former being better than the latter, but with no statistically significant difference (P > 0.05). However, there was a significant difference between these and the other groups (P < 0.05), except for nWRP. Stress distribution inside the canal wall was different among the groups, with promising mechanical behavior for nWGTRP and nWRP. Conclusions The Rebilda conventional fiber post (RP), combined with the Rebilda bundled glass fiber-reinforced composite post (GT) improves the resistance and stress distribution of immature teeth.
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页码:1725 / 1735
页数:11
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[1]
Abdelaziz KM, 2017, J INT SOC PREV COMMU, V7, P344, DOI 10.4103/jispcd.JISPCD_382_17
机构:
Maulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Ambica, Khetarpal
Mahendran, Kavitha
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Tamilnadu Govt Dent Coll & Hosp, Dept Conservat Dent & Endodont, Madras, Tamil Nadu, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Mahendran, Kavitha
Talwar, Sangeeta
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Maulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Talwar, Sangeeta
Verma, Mahesh
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Maulana Azad Inst Dent Sci, Dept Prosthodont, New Delhi 110018, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Verma, Mahesh
Padmini, Govindaswamy
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Madha Dent Coll & Hosp, Dept Conservat Dent & Endodont, Chennai, Tamil Nadu, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Padmini, Govindaswamy
Periasamy, Ravishankar
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Thaimooghambigai Dent Coll & Hosp, Dept Conservat Dent & Endodont, Chennai, Tamil Nadu, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
机构:
Maulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Ambica, Khetarpal
Mahendran, Kavitha
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Tamilnadu Govt Dent Coll & Hosp, Dept Conservat Dent & Endodont, Madras, Tamil Nadu, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Mahendran, Kavitha
Talwar, Sangeeta
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Maulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Talwar, Sangeeta
Verma, Mahesh
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Maulana Azad Inst Dent Sci, Dept Prosthodont, New Delhi 110018, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Verma, Mahesh
Padmini, Govindaswamy
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Madha Dent Coll & Hosp, Dept Conservat Dent & Endodont, Chennai, Tamil Nadu, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India
Padmini, Govindaswamy
Periasamy, Ravishankar
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Thaimooghambigai Dent Coll & Hosp, Dept Conservat Dent & Endodont, Chennai, Tamil Nadu, IndiaMaulana Azad Inst Dent Sci, Dept Conservat Dent & Endodont, New Delhi 110018, India