Results 181 to 190 of about 11,617 (228)

Microbial microleakage and pulpal inflammation: A review

Dental Traumatology, 1986
Abstract The evidence relating microbial microleakage and pulpal inflammation is reviewed. In vitro experiments show that all current dental materials permit fluid microleakage at the material/cavity wall interface. in vivo, this fluid microleakage is accompanied by bacterial growth, unless the material has lasting antibacterial properties.
R S Tobias, R M Browne
exaly   +3 more sources

A crown for clinically investigating microleakage

The Journal of Prosthetic Dentistry, 1991
This investigation evaluated a cast crown with an access port for in vivo microleakage studies. Fifteen complete cast crowns containing an access port in the facial surface were cast. The gingival margins of the crowns were modified to test the sealing ability of the access port. Each casting was thermocycled 750 times at 5 degrees to 60 degrees C over
D A, Felton, S C, Bayne, B E, Kanoy, D, Zapatero   +3 more
openaire   +2 more sources

MICROLEAKAGE OF AMALGAM ALLOYS: AN UPDATE

The Journal of the American Dental Association, 1996
Using an in vitro air pressure test, the authors found a wide variation in the microleakage characteristics of amalgam restorations made from 33 recently manufactured precapsulated alloys. Spherical particle alloys as a group exhibited the highest microleakage values.
D B, Mahler, R W, Bryant
openaire   +2 more sources

Clinical considerations of microleakage

Journal of Endodontics, 1990
Most dental materials permit the microleakage of bacteria and bacterial products from oral fluids to reach dentin. Thus, an understanding of the clinical consequences of microleakage demands that we analyze the permeability characteristics of dentin.
openaire   +2 more sources

Microleakage in porcelain laminate veneers

Journal of Dentistry, 1991
The effectiveness of two dentine-enamel bonding agents has been investigated in vitro when used together with an unfilled, low viscosity resin in eliminating the microleakage of porcelain laminate veneers. The restoration margins were located below and above the amelocemental junction of extracted maxillary central incisors.
A, Zaimoglu, L, Karaagaçlioglu
openaire   +2 more sources

The Influence of Finishing Technique on Microleakage

Journal of Esthetic and Restorative Dentistry, 1990
Four different finishing techniques were used in a dentin bonding agent/composite resin restoration to evaluate the possible influence of finishing technique on microleakage. Results indicated that finishing technique affects the ability of the restorative system to resist microleakage.
X Y, Yu, G, Wieczkowski, E L, Davis, R B, Joynt   +3 more
openaire   +2 more sources

Marginal microleakage—an in vivo assessment

The Journal of the American Dental Association, 1969
Bilaterally paired mandibular teeth scheduled for extraction were chosen for in vivo and in vitro studies of marginal leakage. Decided contrast in test results indicates that marginal microleakage should be determined in vivo. Animal and human tests both show that the removal of a tooth from its organism is decisive in studies of marginal leakage ...
F J, Loiselle, A F, Goldberg, R L, Gross, C H, Stuever   +3 more
openaire   +2 more sources

Microleakage of a new restorative material

The Journal of the American Dental Association, 1966
This paper reports the findings of a study to evaluate the marginal adaptation of Addent by comparing it with other restorative materials in current use.
R E, Going, V J, Sawinski
openaire   +2 more sources

Microleakage in endodontics.

Journal of international oral health : JIOH, 2015
A three-dimensional obturation and complete coronal and apical seal is one the important aims of root canal treatment. Since microorganisms may remain in the root canal system after instrumentation, a tight apical seal is desired to prevent bacteria and their by-products from invading the apex.
Sabir, Muliyar, K Abdul, Shameem, Rekha P, Thankachan, P G, Francis, C S, Jayapalan, K A Abdul, Hafiz   +5 more
openaire   +1 more source

Microleakage of Dentin Adhesive Systems

Journal of Esthetic and Restorative Dentistry, 1991
Five different dentin adhesives were evaluated under various experimental conditions (using different restorative materials, placement techniques, and specimen storage). A silver‐staining technique was used to detect microleakage. Pentra Bond II was less effective than Tenure in prevention of marginal leakage, but similar to Scotchbond 2 and Gluma.
openaire   +2 more sources