1990
DOI: 10.1016/0022-3913(90)90314-3
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Fracture resistance of amalgam coronal-radicular restorations

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Cited by 28 publications
(18 citation statements)
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“…It has been reported that the depth of pulp chamber may be an important factor in determining whether the root canal system is incorporated into the coronalradicular restoration. 19 In another study it was demonstrated that extension of the core material into the coronal root canal system did not increase the fracture resistance to compressive loading. 20 However other forces are also encountered intraorally.…”
Section: Discussionmentioning
confidence: 97%
“…It has been reported that the depth of pulp chamber may be an important factor in determining whether the root canal system is incorporated into the coronalradicular restoration. 19 In another study it was demonstrated that extension of the core material into the coronal root canal system did not increase the fracture resistance to compressive loading. 20 However other forces are also encountered intraorally.…”
Section: Discussionmentioning
confidence: 97%
“…With this type of cuspal coverage restoration, all of the remaining cusps are reduced 2 mm and rebuilt with amalgam. It has also been suggested that, if the pulp chamber height is less than 4 mm, amalgam should be condensed 2-4 mm into each canal to increase the fracture resistance of the amalgam restoration (Nayyar et al 1980 ;Kane et al 1990 ). Although the long-term prognosis for this type of complex amalgam restoration may not be as favorable as a full-coverage crown (Martin and Bader 1997 ), Mondelli et al ( 1998 ) found that these Smales and Hawthorne ( 1997 ) also found that complex amalgam restorations had a mean survival rate of 14.6 years.…”
Section: Cuspal Coverage Amalgammentioning
confidence: 99%
“…1 Kane and others found that the extension of amalgam into the root canal space was beneficial only when the pulp chamber height was 2 mm. 23 Therefore, this study attempted to conform to recommendations from previously acknowledged publications wherever feasible. Previous studies measuring fracture resistance have used 5 to 10 teeth in each group; [10][11]13,[23][24][25] however, in the current study, 15 teeth were used in each group, because of the potential variability introduced by tooth anatomy, core geometry and surface finish.…”
Section: Discussionmentioning
confidence: 99%