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38


Bonding amalgam to tooth structure: a scanning electron microscope study

Scherer, W; Penugonda, B; Allen, K; Ruiz, M; Poveda, C
The purpose of this scanning electron microscope study was to observe the interface between dentin and amalgam utilizing various adhesive resin cements. The adhesive resin materials used in this study were Imperva Dual, Geristore, and Panavia. The scanning electron micrographs revealed that bonds were established between amalgam, adhesive resins, and dentin
PMID: 1299293
ISSN: 1040-1466
CID: 151917

At-home vital bleaching: effects on stained enamel and dentin

Scherer, W; Penugonda, B; Styner, D; Georgescu, M
In a scanning electron microscope study evaluating the effects of a 10% carbamide peroxide gel on stained enamel and dentin, no surface morphologic changes were observed after 72 hours of contact with the bleaching gel
PMID: 1525369
ISSN: 1042-2722
CID: 151937

Pit and fissure sealants. Current status

Park, K; Penugonda, B
Occlusal pits and fissures continue to frustrate dentists battling to control decay. Several techniques being studied now offer hope of eventually eliminating caries in these areas
PMID: 1533446
ISSN: 0028-7571
CID: 151940

Root canal filling materials for primary teeth: a review of the literature

Kubota, K; Golden, B E; Penugonda, B
In summary, there is no known ideal root canal filling material for primary teeth. The closest to the ideal appears to be a calcium hydroxide-iodoform mixture. More histopathologic studies as well as long-term clinical studies are needed on this material
PMID: 1629445
ISSN: 1945-1954
CID: 151963

Profilometer, SEM, and visual assessment of porcelain polishing methods

Goldstein, G R; Barnhard, B R; Penugonda, B
Research has indicated that polishing ground porcelain is essential to control the wear of opposing occlusal surfaces and reduce the inflammation of contacted soft tissue. Five popular methods for polishing porcelain were evaluated by use of a profilometer, SEM, and normal vision. Seventy disks, 35 Biobond disks and 35 Ceramco disks, were roughened with a green stone and polished with one of the methods according to the manufacturers' directions. Brasseler, Dedeco, Dentsply, and Shofu porcelain polishing systems were suitable for restoring ground porcelain. However, clinical evaluations correlated to the profilometer and SEM readings revealed that the Brasseler system was superior for polishing Ceramco porcelain whereas the Den-Mat system was unacceptable
PMID: 2051383
ISSN: 0022-3913
CID: 151998

Mounting a maxillary cast transversely horizontal and constructing a plane of occlusion bilaterally symmetrical

Zelnigher, J; Ravinett, S; Penugonda, B; Kriser, D B
This article discusses a technique for mounting a maxillary cast to any semiadjustable articulator using the dentaplane. The dentaplane is a precision device that divides the articulator space into approximately equal upper and lower halves when attached to the lower member. The dentaplane mounts the maxillary cast with a transverse orientation that replicates conditions in a patient's head
PMID: 2386985
ISSN: 0894-1009
CID: 152002

SURFACE EVALUATIONS OF DIE STONE MATERIAL WITH AND WITHOUT COATINGS [Meeting Abstract]

PENUGONDA, B; PINES, MS; VIJAYARAGHAVAN, TV; SCHULMAN, A
ISI:A1990CM01502069
ISSN: 0022-0345
CID: 154562

Reinforced glass ionomer cement vs. zinc phosphate cement. An interface study

Scherer, W; Kaim, J M; Ferretti, A; Ehrlich, B; Penugonda, B
PMID: 2403666
ISSN: 0028-7571
CID: 152003

A method to identify and correct overextended denture borders

Zelnigher, J; Ravinett, S; Penugonda, B
This paper will present a method of correcting a processed denture for overextension and overwaxup in order to give the patient added comfort and the denture added retention
PMID: 2700682
ISSN: 0894-1009
CID: 152009

THE ENTRAPPED AIR PROBLEM IN CENTRIFUGAL CASTING [Meeting Abstract]

NIELSEN, JP; PENUGONDA, B
ISI:A1987G148501183
ISSN: 0022-0345
CID: 154579