ELIZA

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677804 occurrences (No.8 in the rank) during 5 years in the PubMed. [no cache] 500 found

304) Specimens of zirconia ceramic pieces were divided into 11 groups according to surface treatments as follows: one control group (no treatment), one air abrasion group, and nine laser groups (Nd: YAG irradiation).

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PMID:23828494 DOI:10.1007/s10103-013-1381-7

2015 Lasers in medical science

* Effect of Nd: YAG laser irradiation on surface properties and bond strength of zirconia ceramics.

- This study investigated the effect of neodymium-doped yttrium aluminum garnet (Nd: YAG) laser irradiation on surface properties and bond strength of zirconia ceramics. Specimens of zirconia ceramic pieces were divided into 11 groups according to surface treatments as follows: one control group (no treatment), one air abrasion group, and nine laser groups (Nd: YAG irradiation). The laser groups were divided by applying with different output power (1, 2, or 3 W) and irradiation time (30, 60, or 90 s). Following surface treatments, the morphological characteristics of ceramic pieces was observed, and the surface roughness was measured. All specimens were bonded to resin cement. After, stored in water for 24 h and additionally aged by thermocycling, the shear bond strength was measured. Dunnett's t test and one-way ANOVA were performed as the statistical analyses for the surface roughness and the shear bond strength, respectively, with α = .05. Rougher surface of the ceramics could be obtained by laser irradiation with higher output power (2 and 3 W). However, cracks and defects were also found on material surface. The shear bond strength of laser groups was not obviously increased, and it was significantly lower than that of air abrasion group. No significant differences of the shear bond strength were found among laser groups treated with different output power or irradiation time. Nd: YAG laser irradiation cannot improve the surface properties of zirconia ceramics and cannot increase the bond strength of the ceramics. Enhancing irradiation power and extending irradiation time cannot induce higher bond strength of the ceramics and may cause material defect.

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(1)101 of	(14)4 showed	(27)3 the	(40)2 leads
(2)53 null	(15)4 were	(28)3 to	(41)2 led
(3)38 with	(16)3 as	(29)3 without	(42)2 may
(4)29 for	(17)3 by	(30)2 after	(43)2 program
(5)23 and	(18)3 cycle	(31)2 also	(44)2 protocols
(6)11 in	(19)3 group	(32)2 are	(45)2 response
(7)9 was	(20)3 modalities	(33)2 can	(46)2 schizophrenia
(8)6 groups	(21)3 on	(34)2 concentration	(47)2 seems
(9)6 options	(22)3 option	(35)2 cycles	(48)2 significantly
(10)5 or	(23)3 outcomes	(36)2 effects	(49)2 strategies
(11)4 allocation	(24)3 period	(37)2 group,
(12)4 completion	(25)3 plants	(38)2 induced
(13)4 effect	(26)3 success	(39)2 is

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--- WordNet output for treatment --- =>1.取り扱い, 扱い, 治療, 待遇, 処理, 処置, 2.台本, シナリオ Overview of noun treatment The noun treatment has 4 senses (first 4 from tagged texts) 1. (28) treatment, intervention -- (care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)) 2. (25) treatment, handling -- (the management of someone or something; "the handling of prisoners"; "the treatment of water sewage"; "the right to equal treatment in the criminal justice system") 3. (4) treatment -- (a manner of dealing with something artistically; "his treatment of space borrows from Italian architecture") 4. (2) discussion, treatment, discourse -- (an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased") --- WordNet end ---