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581812 occurrences (No.15 in the rank) during 5 years in the PubMed. [cache]
161) Together with the increased power of laser, the mean shear bond strength was increased continuously and no significant differences were found between the HF group and the laser groups with power of 1.5 or 2 W.
--- ABSTRACT ---
PMID:24142046 DOI:10.1007/s10103-013-1458-3
2015 Lasers in medical science
* Shear bond strength of metal brackets to feldspathic porcelain treated by Nd:YAG laser and hydrofluoric acid.
- Adult orthodontic treatment requires bonding orthodontic attachment to dental restorations. Ceramics are commonly used as esthetic restorative materials for the crowns and bridges. The present study evaluated the shear bond strength of metal orthodontic brackets to the feldspathic porcelain surfaces following conditioning by different powers of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser and hydrofluoric acid as a conventional method. Seventy-two glazed porcelain samples were prepared and randomly attributed to six equal groups of 12. In the conventional hydrofluoric (HF) group, the specimens were etched by 9.6% hydrofluoric acid for 4 min. In laser groups, samples were conditioned by 0.75-, 1-, 1.25-, 1.5-, and 2-W Nd:YAG laser for 10 s. Metal brackets were bonded to porcelain samples and after being stored in distilled water for 24 h, they were subjected to thermocycling for 500 cycles. The debonding was carried out by a Zwick testing machine. The data were statistically analyzed by ANOVA and Tamhane multiple comparisons tests. The mean ± SD of the shear bond strength in the laser group 0.75, 1, 1.25, 1.5, and 2 W and HF group was 2.2 ± 0.9, 4.2 ± 1.1, 4.9 ± 2.4, 7 ± 1.7, 9.6 ± 2.7, and 9.4 ± 2.5, respectively. Together with the increased power of laser, the mean shear bond strength was increased continuously and no significant differences were found between the HF group and the laser groups with power of 1.5 or 2 W. Also, there was no significant difference between all test groups in ARI scores. There was no significant difference between bond strength of laser groups with power of 1.5 and 2 W and HF-etched group. So, Nd:YAG laser with appropriate parameters can be used as an alternative method for porcelain etching.
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(2)110 were (7)12 and (12)5 be (17)2 analysis
(3)46 We (8)10 is (13)5 those (18)2 as
(4)29 we (9)10 not (14)3 authors (19)2 examination
(5)25 also (10)10 study (15)3 have

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--- WordNet output for found --- =>設立する, 基礎づける Overview of noun found The noun found has 1 sense (first 1 from tagged texts) 1. (1) found -- (food and lodging provided in addition to money; "they worked for $30 and found") Overview of verb found The verb found has 3 senses (first 2 from tagged texts) 1. (9) establish, set up, found, launch -- (set up or found; "She set up a literacy program") 2. (4) establish, found, plant, constitute, institute -- (set up or lay the groundwork for; "establish a new department") 3. establish, base, ground, found -- (use as a basis for; found on; "base a claim on some observation") Overview of verb find The verb find has 16 senses (first 13 from tagged texts) 1. (159) find, happen, chance, bump, encounter -- (come upon, as if by accident; meet with; "We find this idea in Plato"; "I happened upon the most wonderful bakery not very far from here"; "She chanced upon an interesting book in the bookstore the other day") 2. (141) detect, observe, find, discover, notice -- (discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint") 3. (86) find, regain -- (come upon after searching; find the location of something that was missed or lost; "Did you find your glasses?"; "I cannot find my gloves!") 4. (57) determine, find, find out, ascertain -- (establish after a calculation, investigation, experiment, survey, or study; "find the product of two numbers"; "The physicist who found the elusive particle won the Nobel Prize") 5. (57) find, feel -- (come to believe on the basis of emotion, intuitions, or indefinite grounds; "I feel that he doesn't like me"; "I find him to be obnoxious"; "I found the movie rather entertaining") 6. (45) witness, find, see -- (perceive or be contemporaneous with; "We found Republicans winning the offices"; "You'll see a lot of cheating in this school"; "The 1960's saw the rebellion of the younger generation against established traditions"; "I want to see results") 7. (41) line up, get hold, come up, find -- (get something or somebody for a specific purpose; "I found this gadget that will serve as a bottle opener"; "I got hold of these tools to fix our plumbing"; "The chairman got hold of a secretary on Friday night to type the urgent letter") 8. (34) discover, find -- (make a discovery, make a new finding; "Roentgen discovered X-rays"; "Physicists believe they found a new elementary particle") 9. (29) discover, find -- (make a discovery; "She found that he had lied to her"; "The story is false, so far as I can discover") 10. (16) find -- (obtain through effort or management; "She found the time and energy to take care of her aging parents"; "We found the money to send our sons to college") 11. (16) rule, find -- (decide on and make a declaration about; "find someone guilty") 12. (13) receive, get, find, obtain, incur -- (receive a specified treatment (abstract); "These aspects of civilization do not find expression or receive an interpretation"; "His movie received a good review"; "I got nothing but trouble for my good intentions") 13. (11) find -- (perceive oneself to be in a certain condition or place; "I found myself in a difficult situation"; "When he woke up, he found himself in a hospital room") 14. recover, retrieve, find, regain -- (get or find back; recover the use of; "She regained control of herself"; "She found her voice and replied quickly") 15. find -- (succeed in reaching; arrive at; "The arrow found its mark") 16. find oneself, find -- (accept and make use of one's personality, abilities, and situation; "My son went to Berkeley to find himself") Overview of adj found The adj found has 1 sense (first 1 from tagged texts) 1. (1) found -- (come upon unexpectedly or after searching; "found art"; "the lost-and-found department") --- WordNet end ---