نتایج جستجو برای: Oral-B
تعداد نتایج: 1131403 فیلتر نتایج به سال:
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نتایج بدست آمده براساس تستهای آماری kruskal wallis,chi square آنالیز شدند. مسواک الکتریکی braun oral b 3d در این بررسی نشان داده است که از دو مسواک دیگر بصورت معنی داری در تمامی نواحی دندان قدرت حذف پلاک بیشتری دارد. مسواک الکتریکی 3dاز نظر حذف پلاک میکروبی در نواحی اینترپروگزیمال نیز بطور معنی دار بهتر عمل کرد. مسواکهای دستی oral b و لاله در نواحی قدامی نتایج قابل قبولی داشتن...
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
an investigation into oral interaction in language classes: a conversation analytic point of view the aim of this thesis is to analyze the interaction between language teachers and students in english language institutes. this work is done in the context of yasuj city. learning another language, which is in most cases english, involves many variables. one of these variables is the linguistic...
the purpose of the present study was to investigate the effect of task-based instruction of vocabulary on the receptive and oral productive acquisition of english vocabulary and compare the results with those obtained from the traditional method. the method and procedure applied in this study was as follows: after the implementation of opt, a group of sixty female students were chosen. the stu...
مقدمه: استرپتوکوکوس موتانس مهمترین میکروارگانیسم پوسیدگی زا بوده و در آغاز پوسیدگی نقش اصلی را دارا میباشد. دهانشویههای حاوی فلوراید به دلیل خواص ضدمیکروبی یون فلوراید، میتوانند تاثیر بسزایی در کاهش این میکروارگانیسم داشته باشند. دو دهانشویه حاوی فلوراید رایج در بازار، دهانشویه oral-b و دهانشویه ایرشا میباشد. هدف از این مطالعه مقایسه تاثیر این دو دهانشویه بر میزان استرپتوکوکوس موتانس ب...
with the plasmid dna from a clinical isolate of enterotoxigenic escherichia coli (etec) h 10407 as template, pcr-mediated cloning of the sequence encoding the heat-labile toxin b subunit (l t -b) has been carried out. then this sequence was recloned into the ptrc 99a and pet23a expression vectors to give the pjasmids ptrcltb and petltb, respectively. after induction, the former plasmid provides...
Objective: Mechanical plaque removal namely tooth brushing is the most commonly used oral hygiene technique. Efficacy of tooth brushing is influenced by the design and shape of toothbrush. This study aimed to compare the efficacy of two common Iranian toothbrushes with a foreign made one in plaque removal. Methods: This clinical trial was conducted on 30 female dental students in Babol Univ...
BACKGROUND: ß -estradiol is a steroid sex hormone that plays important role in oral physiology. The aim of this study was to determin the association of the menstrual cycle and salivary ß-estradiol with the production of volatile sulfur compounds (VSC).METHODS: In this cross-sectional study, twenty female dental students in good oral and general health were recruited for evaluation of VSC, sali...
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