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66) However, in order to utilize the low-level laser as an adjunct in orthodontic practice on patients, further research studies are needed for finding the appropriate dosage for the human tissues.
* The effects of diode laser (660 nm) on the rate of tooth movements: an animal study.
- Low-level laser has been indicated to have the capability to facilitate the differentiation of the osteoclastic and osteoblastic cells which are responsible for the bone remodeling process. The aim of this study was to evaluate the effects of InGaAlP laser with a wavelength of 660 nm on the rate of tooth movement and histological status. Thirty male Wistar rats of 7 weeks old were selected for this study. The rats were randomly divided into two groups of 15 each to form the experimental (laser-irradiated) and control (non-irradiated) groups. The control group received unilateral orthodontic appliance design (one quadrant), but the laser-irradiated group received split-mouth design, with orthodontic appliance on both sides and laser irradiation on one side only (group b) and on the contralateral side (group c). The orthodontic appliance consisted of a NiTi closed coil spring with a length of 5 mm which was ligated to maxillary molar and incisor. A total of 60 g of force was applied to the rat molar. The diode laser (660 nm) was irradiated with an output power of 25 mW in continuous mode for a total time of 5 min in the laser-irradiated group. After 14 days of orthodontic tooth movement, the amount of tooth movements was measured. In the laser-irradiated group, the amount of tooth movement was significantly greater than that of the non-irradiated group (2.3-fold), but there was no significant difference between the non-irradiated and indirectly irradiated groups. Histopathological studies revealed that the number of osteoclasts in the laser-irradiated group was significantly greater than that of the non-irradiated group (1.5-fold) while this number was almost the same in the non-irradiated and indirectly irradiated groups. The results suggested that low-level laser can accelerate the rate of bone remodeling. However, in order to utilize the low-level laser as an adjunct in orthodontic practice on patients, further research studies are needed for finding the appropriate dosage for the human tissues.
=>1.さらにずっと, さらに先に, 一層遠く, その上, 更に, もっと遠い, なお一層の, さらに遠く,
もっと先に, いっそうはるかに, さらにまた, さらになお(furthermore), 2.進める, 助成する, 促進する
Overview of verb further
The verb further has 2 senses (first 2 from tagged texts)
1. (7) foster, further -- (promote the growth of; "Foster our children's well-being and education")
2. (2) promote, advance, boost, further, encourage -- (contribute to the progress or growth of; "I
am promoting the use of computers in the classroom")
Overview of adj further
The adj further has 1 sense (first 1 from tagged texts)
1. (2) further, farther -- (more distant in especially degree; "nothing could be further from the
truth"; "further from our expectations"; "farther from the truth"; "farther from our expectations")
Overview of adv further
The adv further has 3 senses (first 3 from tagged texts)
1. (33) further, farther -- (to or at a greater extent or degree or a more advanced stage (`further'
is used more often than `farther' in this abstract sense); "further complicated by uncertainty about
the future"; "let's not discuss it further"; "nothing could be further from the truth"; "they are
further along in their research than we expected"; "the application of the law was extended
farther"; "he is going no farther in his studies")
2. (10) further -- (in addition or furthermore; "if we further suppose"; "stated further that he
would not cooperate with them"; "they are definitely coming; further, they should be here already")
3. (1) farther, further -- (to or at a greater distance in time or space (`farther' is used more
frequently than `further' in this physical sense); "farther north"; "moved farther away"; "farther
down the corridor"; "the practice may go back still farther to the Druids"; "went only three miles
further"; "further in the future")
Overview of adv far
The adv far has 5 senses (first 4 from tagged texts)
1. (61) far -- (to a considerable degree; very much; "a far far better thing that I do"; "felt far
worse than yesterday"; "eyes far too close together")
2. (39) far -- (at or to or from a great distance in space; "he traveled far"; "strayed far from
home"; "sat far away from each other")
3. (22) far -- (at or to a certain point or degree; "I can only go so far before I have to give up";
"how far can we get with this kind of argument?")
4. (3) far -- (remote in time; "if we could see far into the future"; "all that happened far in the
past")
5. far -- (to an advanced stage or point; "a young man who will go very far")
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