TY - JOUR
T1 - Effect of premolar axial wall height on computer-aided design/computer-assisted manufacture crown retention
AU - Martin, Curt
AU - Harris, Ashley
AU - DuVall, Nicholas
AU - Wajdowicz, Michael
AU - Roberts, Howard Wayne
N1 - Publisher Copyright:
© 2018 by Quintessence Publishing Co Inc.
PY - 2018
Y1 - 2018
N2 - Purpose: To evaluate the effect of premolar axial wall height on the retention of adhesive, full-coverage, computer-aided design/computer-assisted manufacture (CAD/CAM) restorations. Materials and Methods: A total of 48 premolar teeth randomized into four groups (n = 12 per group) received all-ceramic CAD/CAM restorations with axial wall heights (AWH) of 3, 2, 1, and 0 mm and 16-degree total occlusal convergence (TOC). Specimens were restored with lithium disilicate material and cemented with self-adhesive resin cement. Specimens were loaded to failure after 24 hours. Results: The 3- and 2-mm AWH specimens demonstrated significantly greater failure load. Failure analysis suggests a 2-mm minimum AWH for premolars with a TOC of 16 degrees. Conclusion: Adhesive technology may compensate for compromised AWH.
AB - Purpose: To evaluate the effect of premolar axial wall height on the retention of adhesive, full-coverage, computer-aided design/computer-assisted manufacture (CAD/CAM) restorations. Materials and Methods: A total of 48 premolar teeth randomized into four groups (n = 12 per group) received all-ceramic CAD/CAM restorations with axial wall heights (AWH) of 3, 2, 1, and 0 mm and 16-degree total occlusal convergence (TOC). Specimens were restored with lithium disilicate material and cemented with self-adhesive resin cement. Specimens were loaded to failure after 24 hours. Results: The 3- and 2-mm AWH specimens demonstrated significantly greater failure load. Failure analysis suggests a 2-mm minimum AWH for premolars with a TOC of 16 degrees. Conclusion: Adhesive technology may compensate for compromised AWH.
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U2 - 10.11607/ijp.5455
DO - 10.11607/ijp.5455
M3 - Article
C2 - 29590666
AN - SCOPUS:85049528978
SN - 0893-2174
VL - 31
SP - 397
EP - 398
JO - International Journal of Prosthodontics
JF - International Journal of Prosthodontics
IS - 4
ER -