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Effect of ultrasonic instrumentation on the retention of simulated cast crowns |
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| Authors: | D.D.S. M.S. Michael J. McQuade Resident in periodontics D.D.S. M.S. Eugene F. Huget Chief Division of Dental Materials B.S. Laszlo B. de Simon Physical Scientist D.D.S. Marvin P. Levin Chief |
| Affiliation: | D.D.S., M.S. Michael J. McQuade, Resident in periodontics, D.D.S., M.S. Eugene F. Huget, Chief, Division of Dental Materials, B.S. Laszlo B. de Simon, Physical Scientist,D.D.S. Marvin P. Levin, Chief, Department of Clinical Specialties |
| Abstract: | The effect of ultrasonic instrumentation on the retention of cemented cast restorations was studied. Forces required to dislodge castings from specimen assemblies subjected to ultrasonic vibrations did not differ significantly from those required to cause failure of noninstrumented specimens. The results indicate that clinical application of the ultrasonic device would not affect adversely the retention of properly cemented and well fitting cast restorations. |
| Keywords: | Reprint requests to: Dr. Eugene F. Huget U.S. Army Institute of Dental Research Walter Reed Army Medical Center Washington D.C. 20012 |
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