Results 271 to 280 of about 43,282 (314)

Shear bond strengths of orthodontic plastic brackets

American Journal of Orthodontics and Dentofacial Orthopedics, 2000
The purpose of the present study was to evaluate the shear bond strengths of plastic brackets and the influences of the bracket filler contents on the bonding. The shear bond strengths of 4 plastic brackets (Spirit; Spirit MB; Clear Bracket; Aesthetic-Line) bonded to enamel with 4 orthodontic adhesives (Orthomite Superbond; System 1+; Transbond XT; and
G, Guan, T, Takano-Yamamoto, M, Miyamoto, T, Hattori, K, Ishikawa, K, Suzuki   +5 more
openaire   +2 more sources

Shear strength of ceramic brackets bonded to porcelain

American Journal of Orthodontics and Dentofacial Orthopedics, 1994
The purpose of this study was to compare the bond strengths of three different adhesive systems when used alone and combined with a porcelain priming agent to bond ceramic brackets to porcelain surfaces. Sixty porcelain specimens were randomly assigned to the six different treatment groups.
B O, Whitlock, J D, Eick, R J, Ackerman, A G, Glaros, R P, Chappell   +4 more
openaire   +2 more sources

Comparison of in vivo and in vitro shear bond strength

American Journal of Orthodontics and Dentofacial Orthopedics, 2003
Much of the research into composite adhesives suggests that these materials will deteriorate in the oral environment, but most of these claims are made on the basis of extrapolation from in vitro experiments; relatively little in vivo research has been conducted into the mechanical properties of composite adhesives.
Murray SD, Hobson RS
openaire   +3 more sources

Shear bond strength of an experimental composite bracket

Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie, 2013
The in vitro shear bond strength of MZ100 brackets (an experimental composite bracket developed by the Dental Biomaterial Laboratory at Boston University) and the effect of different treatment methods on these brackets were evaluated.As the bonding substrates, 80 Vitablocs® Mark II (Vident, Brea, CA, USA) were chosen.
Zhe-chen, Zhang, Russell, Giordano, Gang, Shen, L Lee, Chou, Yu-fen, Qian   +4 more
openaire   +2 more sources

Shear strength of orthodontic direct-bonding adhesives

American Journal of Orthodontics, 1976
A total of 210 double-width stainless steel edgewise brackets with retentive lip bases were bonded to bovine incisors with seven commercially available direct-bonding materials. Ten samples for each of the seven direct-bonding materials were tested for shear strength using the Instron Universal Testing Instrument. The samples were tested after 1 day, 1
W T, Johnson, J H, Hembree, F N, Weber
openaire   +2 more sources

Shear bond strength of six restorative materials

Journal of Clinical Pediatric Dentistry, 2001
The purpose of this study was to determine and compare the shear bond strength of a conventional glassionomer cement, a resin modified glass-ionomer, a composite resin and three compomer restorative materials. Dentin of the occlusal surfaces from sixty extracted human permanent molars were prepared for shear bond strength testing.
M F, Almuammar, A, Schulman, F S, Salama
openaire   +2 more sources

Shearing strengths of recycled direct-bonding brackets

American Journal of Orthodontics, 1982
One hundred twenty freshly extracted human incisor teeth were bonded with several different brands of direct-bonding brackets and tested for retention prior to and after recycling of the brackets by two different commercially available methods. Measurements of shearing strengths were performed to observe any possible changes in the retentive properties
V E, Mascia, S R, Chen
openaire   +2 more sources

The effect of saliva on shear bond strengths of hydrophilic bonding systems

American Journal of Orthodontics and Dentofacial Orthopedics, 2001
Failure of orthodontic bonded attachments and brackets is mostly attributed to contamination of the enamel surface. To overcome this problem, materials have been developed that purportedly overcome the moisture and contaminants present in the oral environment.
M J, Webster, R S, Nanda, M G, Duncanson, S S, Khajotia, P K, Sinha   +4 more
openaire   +2 more sources

Shear Bond Strength of Ceramic Brackets with Two Bonding Adhesives

British Journal of Orthodontics, 1993
The shear bond strength of two adhesives (Concise® and Dyna-Plus® bonding system) with one type of ceramic bracket was determined in this study. There were statistically significant differences between the bond strengths, with Concisereg; recording higher levels than Dyna-Plus®.
W H, Sam, S Y, Chao, K H, Chung
openaire   +2 more sources

Bonding amalgam to enamel: Shear bond strength and SEM morphology

The Journal of Prosthetic Dentistry, 2001
Most studies of amalgam bonding have used dentin as the substrate. There is little data on bonding to enamel.This study evaluated the shear bond strength of amalgam to enamel with the use of 3 resin cements, 1 resin-modified glass ionomer lining cement, and 2 dentin bonding agents.Sixty bovine teeth were trimmed to expose a flat enamel surface and ...
S, Dhanasomboon, T, Nikaido, Y, Shimada, J, Tagami   +3 more
openaire   +2 more sources