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Register a new userCompared Histological Study Between Calcium Hydroxide and Propolis as Direct Pulp Capping Agent in Humans
دراسة نسيجية مقارنة بين العكبر و ماءات الكالسيوم كمادة تغطية لبية مباشرة عند الإنسان
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Damascus University ورقة بحثية
Publication date
2009
fields
Dentistry
and research's language is
العربية
Authors
أسامة أكرم الجبان( باحث )
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هدف هذا البحث إلى إجراء دراسة نسيجية مقارنة لتطبيق العكبر و ماءات الكالسيوم بوصفها مادة تغطية لبية مباشرة على ضواحك معدة للقلع تقويمياً، و مقارنتها بعينة شاهدة يطبق فيها أكسيد الزنك و الأوجينول فقط.
The aim of this research was to know the histological comparative between propolis and calcium hydroxide as direst pulp capping in human.
References used
Phaneup RA, Frankl SN, Ruben NP. A comparative histological evaluation of three calcium hydroxide on the human primary dental pulp, J Dent Child 1968;35:61-76
Pereira JC, Brante CM, Berbert A, Mondelli J. Effect of calcium hydroxide in powder or in paste form on pulp capping procedures: Histological and radiographic analysis in dogs pulp. Oral Surg Oral Med Oral Pathol 1980; 50(2):176-186
Akestar J. Disappearing Dycal (Letter). Br Dent J 1979;147:369
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Amelogenins from ameloblast play an important rule in differntiating
odontoblasts in dental papilla, suggesting that amelogenins may associate with odontoblasts changes
during development.
Aim In the present study we have investigated the effects
of enamel matrix derivative (EMD) on the
healing of pulpal wound and formation of reperative dentin.
This In Vivo study aimed to compare the antibacterial activity of
alcoholic extract of propolis and Miswak with sodium hypochlorite and saline.
The study was performed on 40 infected single root canals for
patients of both sexes, regardless of gender or age.
Aim: The aim of this study was to detect the effect of dressing period of calcium
hydroxide medicament on the apical marginal leakage after obturation of root canal
system.
Materials and Methods: 80 freshly extracted single rooted human teeth were
selected ,all the root canals were hand-instrumented. They were randomly divided into four
groups of 20 teeth each. Group A has no intracanal medicament , groups (B,C,D) were
dressed with Ca(OH)2 paste for a different periods of time (7,14,30) days respectively,
groups (B,C,D) were divided into subgroups of 10 teeth according to removing of dressing
. The removal of ca(OH)2was done by two ways, 1- By irrigating with distilled water and
drying with paper points . 2- Size 40 k-file was used in slightly filing motion up to the
working length then irrigated with distilled water and drying with paper points. After that
all groups were obturated with lateral compaction technique using gutta-percha points and
zinc oxide-eugenol cement. Then the access was sealed with GIC cement. The teeth were
immersed into 2% mythylene blue solution ,The specimens were placed in an incubator at
37 C ,with moisture at 100%, for 7 days .After that the roots were sectioned
longitudinally and examined with stereomicroscope and liner leakage was measured.
A comparative study was conducted between GIC and Biodentine
Cements by assessing their solubility, their effect on pH, their ability to
absorb water, and calcium release in the same laboratory conditions.
Aim of Study: The antimicrobial intracanal medication was used widely, and the most common was calcium hydroxide dressing, which must be removed from the root canal before obturation, hence this study aimed to comparative efficacy of EndoVac and Navi
Tip 30 G irrigation Needles with Naocl and CHX 2% in removing calcium hydroxide dressing from the apical third of root canal. Materials &Methods: Forty single root and canal teeth were decoronated to the length of 16 mm. Each root was prepared to the apical foramen using ProTaper Universal Hand System to size 40. Each tooth was embedded in silicone putty to create a set matrix, which allowed reassembly of the tooth for irrigation tests after splitting longitudinally. Then each tooth was split into two halves and an artificial groove (L:4, W:0,2 , D:0,5 ) was cut in one half of the root canal wall 1 mm from the apex ,which was then filled with a Ca(OH)2 paste. Digital images were taken before reassembling under stereomicroscope X40. Subsequently the two halves of roots were reassemble with wax , and remounted in their silicone matrixes, then divided into 2 groups.
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