نتایج جستجو برای: pulpdent
تعداد نتایج: 35 فیلتر نتایج به سال:
The anti-microbial activity of calcium hydroxide pastes used in endodontics is dependent on establishing high levels of hydroxyl ions in dentine. This study investigated hydroxyl ion diffusion from different commercial calcium hydroxide pastes using a novel colourimetric method. In this method, human tooth roots were stained with anthocyanin dye, which changed their colour according to the loca...
Introduction Hydroxyl ion release from calcium hydroxide is responsible for the key attributes of broad spectrum antimicrobial activity, penetration into biofilms, inhibition of endotoxins, and dissolution of organic tissues.1,2 The maximum solubility of calcium hydroxide in water at 25C is only 0.159 g/100mL (0.16%), and this reduces to 0.140 g/100 mL (0.14%) at 40C, with an accompanying decre...
Calcium hydroxide's anti-bacterial action relies on high pH. The aim here was to investigate hydroxyl ion diffusion through dentine under different conditions. Teeth were divided into control (n = 4) and four experimental groups (n = 10): Group 1-no medicament; Group 2-Calmix; Group 3-Calmix/Ledermix; Group 4-Calasept Plus/Ledermix; Group 5-Pulpdent/smear layer. Deep (inner dentine) and shallow...
Introduction: Contamination of etched enamel to saliva before placement of sealant prevents the appropriate bonding and results in microleakage. Using bondings is effective for decreasing the microleakage. This experimental study aimed to evaluate the effect of bonding agent on microleakage of a fissure sealant before or after contamination to saliva. Methods: In this experimental study 40 sou...
introduction: a desirable quality of any endodontic sealer is its ability to be tooth color friendly. therefore the aim of the present study was to evaluate the tooth discoloration potential of a nano zinc oxide-eugenol (nzoe) sealer. methods and materials: in order to evaluate tooth discoloration, the pulp chamber of 60 human maxillary central and lateral incisors were filled with one of the s...
Objective: Etching of enamel and dentin is an important step in restoration of teeth with composite resin ensuring the retention of restoration and decreasing microleakage. This in vitro study sought to compare the effects of Kimiya and Etch-Rite acid etchants on the microleakage of composite restorations. Methods: This experimental study was conducted on 30 sound human molar teeth. Class V...
مقدمه:امروزه بسیاری از تحقیقات و تحولات در زمینه مواد دندانی بر روی ساده سازی مراحل باندینگ متمرکز شده است. هدف از این مطالعه بررسی استحکام برشی پیوند یک کامپازیت خود باند شونده و قابل سیلان جدید (Class V Embrace Embrace Wetbond,Pulpdent,Watertown,USA) به عاج دندان بود. مواد و روش ها:در این تحقیق تجربی – آزمایشگاهی، 40دندان مولر سوم سالم انسان انتخاب شده و به طور تصادفی در چهار گروه 10 تایی ت...
objective: etching of enamel and dentin is an important step in restoration of teeth with composite resin ensuring the retention of restoration and decreasing microleakage. this in vitro study sought to compare the effects of kimiya and etch-rite acid etchants on the microleakage of composite restorations. methods: this experimental study was conducted on 30 sound human molar teeth. class v c...
مقدمه:امروزه بسیاری از تحقیقات و تحولات در زمینه مواد دندانی بر روی ساده سازی مراحل باندینگ متمرکز شده است. هدف از این مطالعه بررسی استحکام برشی پیوند یک کامپازیت خود باند شونده و قابل سیلان جدید (class v embrace embrace wetbond,pulpdent,watertown,usa) به عاج دندان بود. مواد و روش ها:در این تحقیق تجربی – آزمایشگاهی، 40دندان مولر سوم سالم انسان انتخاب شده و به طور تصادفی در چهار گروه 10 تایی تقس...
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