Results 121 to 130 of about 44,910 (309)

In situ evaluation of the bleaching efficacy of experimental hydrogen peroxide hydrogel with MnO‐doped Biosilicate activated by violet LED light

European Journal of Oral Sciences, EarlyView.
Abstract Hydrogen peroxide (HP) at 35% is effective for dental bleaching but may reduce enamel mineral content and induce structural changes. This study developed a bleaching‐hydrogel containing 6%HP and manganese‐oxide–doped Biosilicate (MnO_BioS), activated by violet LED, under in situ conditions.
Rafael Dascanio, Marina Trevelin Souza, Camila Siqueira Silva Coelho, Matheus Kury, Edgar Dutra Zanotto, Vanessa Cavalli   +5 more
wiley   +1 more source

Eoarchean–Paleoproterozoic Tectonothermal History of the Acasta Gneiss Complex Constrained by Titanite and Apatite Petrochronology

Geochemistry, Geophysics, Geosystems
Deciphering Earth's earliest geodynamic processes requires temporally constrained chemical and structural data from rare exposures of ancient rocks.
Omar Khalil Droubi, Ann M. Bauer, Chloë Bonamici, William O. Nachlas, Joshua M. Garber, Michael J. Tappa, Jesse R. Reimink   +6 more
doaj   +1 more source

Textural variations and origin of apatite and other phosphates in the Gruvberget deposit (Northern Sweden)

reservedThe Gruvberget deposit, located in northern Sweden, comprises part of the Kiruna iron mining district, one of the most valuable regions of the world for extraction of iron.
BARBIERI, GIULIA
core  

Influence of rubbing during etching on surface roughness and interfacial characteristics of intact enamel

European Journal of Oral Sciences, EarlyView.
Abstract Rubbing phosphoric acid during etching has been shown to improve surface roughness in prepared enamel. This study aimed to compare intact enamel's surface roughness and resin tag lengths after etching with and without rubbing. Extracted sound third molars were used for testing, mesially for conventional and distally for dynamic (rubbing ...
Moana Biedermann, Iosif Sifakakis, Spiros Zinelis, George Eliades, Theodore Eliades, Raphael Patcas   +5 more
wiley   +1 more source

Apatite fission dating from intrusive rock sample BEKL8D6a

, 2017
Apatite fission dating from intrusive rock sample ...
Ferrari, Luca, Jose Duque-Trujillo (8019164), Giacomo Corti (8019173), Luca Ferrari (3749722), Duque-Trujillo, Jose, Cerca, Mariano, Marco Bonini (8019161), Moratti, Giovanna, Corti, Giacomo, Maria Laura Balestrieri (8016650), Giovanna Moratti (8019170), Bonini, Marco, Balestrieri, Maria Laura, Mariano Cerca (8019167)   +13 more
core   +1 more source

Remarkable decline and sustained low levels of caries in the Nordic populations—Explanations and implications for public oral health

European Journal of Oral Sciences, EarlyView.
Abstract Community water fluoridation has been acclaimed as an effective mode of caries control at the population level. However, a recent review has concluded that in high‐income populations with widespread access to topical fluorides, water fluoridation (0.7 ppm F) has a minor effect on the development of caries.
Bente Nyvad, Ole Fejerskov
wiley   +1 more source

Apatite fission dating from intrusive rock sample BEKL10D1a

, 2017
Apatite fission dating from intrusive rock sample ...
Ferrari, Luca, Jose Duque-Trujillo (8019164), Giacomo Corti (8019173), Luca Ferrari (3749722), Duque-Trujillo, Jose, Cerca, Mariano, Marco Bonini (8019161), Moratti, Giovanna, Corti, Giacomo, Maria Laura Balestrieri (8016650), Giovanna Moratti (8019170), Bonini, Marco, Balestrieri, Maria Laura, Mariano Cerca (8019167)   +13 more
core   +1 more source

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

Geostandards and Geoanalytical Research, EarlyView.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig, Maciej G. Śliwiński, Irene Cantarero, Richard A. Stern, Carles Fàbrega, Jakub T. Śliwiński, Thomas Ludwig, František Majs, William Nachlas, John H. Fournelle, Xavier Llovet, Rachelle B. Turnier, David Parcerisa, Anna Travé   +13 more
wiley   +1 more source

Apatite fission dating from intrusive rock sample ORO01

, 2017
Apatite fission dating from intrusive rock sample ...
Ferrari, Luca, Jose Duque-Trujillo (8019164), Giacomo Corti (8019173), Luca Ferrari (3749722), Duque-Trujillo, Jose, Cerca, Mariano, Marco Bonini (8019161), Moratti, Giovanna, Corti, Giacomo, Maria Laura Balestrieri (8016650), Giovanna Moratti (8019170), Bonini, Marco, Balestrieri, Maria Laura, Mariano Cerca (8019167)   +13 more
core   +1 more source

Assessment and Correction of Non‐Linearity Effects for In Situ Rb‐Sr Geochronology Applied to High 87Rb/86Sr Mica

Geostandards and Geoanalytical Research, EarlyView.
Key Points Measurement of 86Sr at count rates < 1500 cps can result in statistical bias. Non‐linear signals in analogue detection mode (e.g., Rb) present a challenge for accurately dating high 87Rb/86Sr mica (> 1000). Accounting for these considerations, high 87Rb/86Sr mica are dated here with accuracies of ∼ 1%.
Duane C. Petts, William J. Davis, Simon E. Jackson, Jamie A. Cutts, Janina Czas, Alfredo Camacho   +5 more
wiley   +1 more source