Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps

This study evaluated the fracture resistance of maxillary premolars with wide Mesial-Occlusal-Distal (MOD) cavity preparations and unsupported cusps restored by four ways, compared with intact teeth. Thirty five human teeth were divided into five groups: control (G1 - intact teeth) and four experime...

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Autores principales:	Ferreira,Marly Christiènne Capaneli Guimarães, Orsi,Iara Augusta, Borie-Echevarría,Evelyn, Borie,Eduardo
Lenguaje:	English
Publicado:	Universidad de La Frontera. Facultad de Medicina 2014
Materias:	fracture resistance composite dental amalgam
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2014000100018
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spelling	oai:scielo:S0718-381X20140001000182015-11-13Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported CuspsFerreira,Marly Christiènne Capaneli GuimarãesOrsi,Iara AugustaBorie-Echevarría,EvelynBorie,Eduardo fracture resistance composite dental amalgam This study evaluated the fracture resistance of maxillary premolars with wide Mesial-Occlusal-Distal (MOD) cavity preparations and unsupported cusps restored by four ways, compared with intact teeth. Thirty five human teeth were divided into five groups: control (G1 - intact teeth) and four experimental groups of MOD-prepared teeth: with buccal (B) and lingual (L) cusps reinforced with composite (Z-250) and restored with silver amalgam (Permite C) (G2); teeth with B and L cusps reinforced and linked with composite (P-60) and restored with silver amalgam (Permite C) (G3); teeth restored with composite (Z-250) by incremental fill technique (G4); and teeth with B and L cusps reinforced and linked with composite (P-60) and restored with composite (Z-250) by incremental fill technique (G5). After thermal cycling (500 cycles, 5°C to 55°C), fracture resistance was tested in a universal testing machine. Statistical analysis of the results (ANOVA) revealed no significant difference (p>0.5) among the groups (G1=157.78Kgf, G2=183.99Kgf, G3=152.53Kgf, G4=182.61Kgf and G5=155.96Kgf). Visual analysis of the teeth tested showed predominance of oblique failure pattern. The four types of restoration evaluated provide fracture resistance with values equivalent to intact teeth in MOD-prepared intact teeth with parallel walls and composite-reinforced cusps.info:eu-repo/semantics/openAccessUniversidad de La Frontera. Facultad de MedicinaInternational journal of odontostomatology v.8 n.1 20142014-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2014000100018en10.4067/S0718-381X2014000100018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	fracture resistance composite dental amalgam
spellingShingle	fracture resistance composite dental amalgam Ferreira,Marly Christiènne Capaneli Guimarães Orsi,Iara Augusta Borie-Echevarría,Evelyn Borie,Eduardo Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps
description	This study evaluated the fracture resistance of maxillary premolars with wide Mesial-Occlusal-Distal (MOD) cavity preparations and unsupported cusps restored by four ways, compared with intact teeth. Thirty five human teeth were divided into five groups: control (G1 - intact teeth) and four experimental groups of MOD-prepared teeth: with buccal (B) and lingual (L) cusps reinforced with composite (Z-250) and restored with silver amalgam (Permite C) (G2); teeth with B and L cusps reinforced and linked with composite (P-60) and restored with silver amalgam (Permite C) (G3); teeth restored with composite (Z-250) by incremental fill technique (G4); and teeth with B and L cusps reinforced and linked with composite (P-60) and restored with composite (Z-250) by incremental fill technique (G5). After thermal cycling (500 cycles, 5°C to 55°C), fracture resistance was tested in a universal testing machine. Statistical analysis of the results (ANOVA) revealed no significant difference (p>0.5) among the groups (G1=157.78Kgf, G2=183.99Kgf, G3=152.53Kgf, G4=182.61Kgf and G5=155.96Kgf). Visual analysis of the teeth tested showed predominance of oblique failure pattern. The four types of restoration evaluated provide fracture resistance with values equivalent to intact teeth in MOD-prepared intact teeth with parallel walls and composite-reinforced cusps.
author	Ferreira,Marly Christiènne Capaneli Guimarães Orsi,Iara Augusta Borie-Echevarría,Evelyn Borie,Eduardo
author_facet	Ferreira,Marly Christiènne Capaneli Guimarães Orsi,Iara Augusta Borie-Echevarría,Evelyn Borie,Eduardo
author_sort	Ferreira,Marly Christiènne Capaneli Guimarães
title	Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps
title_short	Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps
title_full	Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps
title_fullStr	Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps
title_full_unstemmed	Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps
title_sort	evaluation of composite reinforcement on the fracture resistance of teeth with unsupported cusps
publisher	Universidad de La Frontera. Facultad de Medicina
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-381X2014000100018
work_keys_str_mv	AT ferreiramarlychristiennecapaneliguimaraes evaluationofcompositereinforcementonthefractureresistanceofteethwithunsupportedcusps AT orsiiaraaugusta evaluationofcompositereinforcementonthefractureresistanceofteethwithunsupportedcusps AT borieechevarriaevelyn evaluationofcompositereinforcementonthefractureresistanceofteethwithunsupportedcusps AT borieeduardo evaluationofcompositereinforcementonthefractureresistanceofteethwithunsupportedcusps
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Evaluation of Composite Reinforcement on the Fracture Resistance of Teeth with Unsupported Cusps

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