Results 111 to 120 of about 1,819,422 (278)

Evaluation of Friction of Different Ligation Methods In Accordance With and Without Bracket Types

Turkish Journal of Orthodontics, 2013
Objective:The aim of this in vitro study was to evaluate the frictional values of 3 different ligation methods with different bracket types using a crowded configuration.Materials and Methods:Three aesthetic conventional brackets (monocrystalline ceramic,
Ridvan Bayri, H. Nuray Yilmaz, Evin Koc, Nazan Kucukkeles   +3 more
doaj   +1 more source

Clinical Debonding Simulation Study of One Metal and Two Ceramic Brackets [PDF]

, 1999
The purpose of this study is to compare two mechanical debonding methods on ceramic brackets (TP MXi and 3M Clarity) and a metal bracket (GAC OmniArch) with four different bonding materials (light-cured, one-step chemical-cured, two-step chemical-cured ...
Shim, Hyunsup
core   +1 more source

Evaluation of the re-bond strength of debonded metal and ceramic brackets following Er: YAG laser treatment

BMC Oral Health
Background Failure of orthodontic bracket bonds is a common occurrence during orthodontic treatment. This study investigated the impact of Er: YAG laser-based removal of adhesive from the bases of metal and ceramic brackets for re-bonding.
Xiaowan Zheng, Xiaofeng Huang
doaj   +1 more source

Evaluatıon Of Cleaned Brackets For Rebondıng

, 1989
In this in vitro study, fourteen used and seven new mesh-pad base bonded brackets were used and divided into three groups. Seven used brackets which were cleaned only by burning procedure, separated as first group; seven used brackets which were cleaned ...
Celil Dinçer, Müfide Dinçer, Rıza Gürbüz   +2 more
core   +1 more source

Methane Activation by B5+ Toward a CB5H2+ Isomer Containing a Planar Tetracoordinate Carbon Atom

Angewandte Chemie, EarlyView.
Methane activation by B5+ yields CB5H2+ through H2 elimination. Electronic‐structure calculations connect the nascent dehydrogenation product to a low‐lying isomer containing a planar tetracoordinate carbon atom. ABSTRACT Planar tetracoordinate carbon (ptC) motifs have been identified predominantly in the global‐minimum structures of gas‐phase clusters
Qin‐Wei Zhang, Qiang Chen, Fernando Murillo, Filiberto Ortíz‐Chi, Rui‐Nan Yuan, Fernando Martínez‐Villarino, Aura Gómez‐Heredia, Hong Niu, Rui Wei, Jiao‐Jiao Chen, Yan‐Bo Wu, Gabriel Merino   +11 more
wiley   +1 more source

Z‐Retentive Enantioselective Rh‐Catalyzed Hydroarylation of E,Z‐Dienes

Angewandte Chemie, EarlyView.
The Rh‐catalyzed hydroarylation of conjugated E,Z‐dienoates is found to proceed with high selectivity for addition to the E‐alkene unit. Mechanistic analysis of this Z‐retentive process points towards preferred binding of the E‐alkene unit to a Rh‐aryl species to give rise to the observed selectivity and that Rh‐enolate protonolysis to be turnover ...
Wesley McNutt, Hima Kozhummal, Abdullah Al‐Mashqbeh, Alex Brown, Rylan J. Lundgren   +4 more
wiley   +1 more source

Comparison of Streptococcus mutans Adhesion on New and Recycled Metal Brackets: An In Vitro Study. [PDF]

Cureus, 2022
Thiruvengadam V, Chitharanjan AB, Kumar K, Singaram V.   +3 more
europepmc   +1 more source

Impact of different pretreatments and attachment materials on shear bond strength between monolithic zirconia restorations and metal brackets. [PDF]

Sci Rep, 2022
Jungbauer R, Proff P, Edelhoff D, Stawarczyk B.   +3 more
europepmc   +1 more source

Residual Adhesive Removal Methods for Rebonding of Debonded Orthodontic Metal Brackets: Systematic Review and Meta-Analysis. [PDF]

Materials (Basel), 2021
Grazioli G, Hardan L, Bourgi R, Nakanishi L, Amm E, Zarow M, Jakubowicz N, Proc P, Cuevas-Suárez CE, Lukomska-Szymanska M.   +9 more
europepmc   +1 more source

Orthodontic Bracket Removal and Enamel Roughness: Comparing the Effects of Sapphire and Metallic Brackets in an In Vitro Study

Bioengineering
Background: Enamel surface roughness after bracket debonding is an important issue due to its impact on plaque accumulation and the potential development of carious lesions. This in vitro study aimed to assess enamel roughness after the removal of metallic and sapphire brackets and the effect of a remineralization treatment.
Cosmin Bogdan Licsăndroiu, Mihaela Jana Țuculină, Adelina Smaranda Bugălă, Petre Costin Mărășescu, Felicia Ileana Mărășescu, Andreea Gabriela Nicola, Cristian Niky Cumpătă, Cosmin Mihai Mirițoiu, Ovidiu Ioan Gheorghe, Maria Cristina Bezna, Elena Verona Licsăndroiu, Ionela Teodora Dascălu   +11 more
openaire   +3 more sources