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Register a new userCapability of enamel matrix derivative to induce dentine after pulp capping in humans
تقييم مشتق القالب المينائي على تشكيل العاج بعد التغطية اللبية عند الإنسان
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Damascus University ورقة بحثية
Publication date
2012
fields
Dentistry
and research's language is
العربية
Created by
Shamra Editor
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يؤدي الأميلوجين المفرز من مولدات الميناء خلال المرحلة الجنينية لتكون العاج، دوراً مهماً في تمايز خلايا مولدات العاج في الحليمة السنية، و أقترح بذلك أن الأميلوجين قد يسهم في التغيرات الحاصلة في مصورات العاج خلال مرحلة التطور الجنيني للسن. هدفتِ الدراسة الحالية تحري تأثير مشتق القالب المينائي المحتمل في عملية شفاء الجرح اللبي و تشكل العاج المرمم.
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.
References used
Hermann BW. Dentinobliteran der Wurzelkanalc nach der Behandlung mit kalzuim. Zahnaiztl Rundschau 1930;39:888
Zander HA. Reaction of the pulp to calcium hydroxide. J Dent Res 1939;18:373-79
Horsted P, Sandergaard B, Thylstrup A, El Attar K, Fejerskov O. A retrospective study of direct pulp capping with calcium hydroxide compounds. Endod Dent Traumatol 1985;1:29-34
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The aim of this research was to know the histological
comparative between propolis and calcium hydroxide as direst pulp capping
in human.
The purpose of this study was to assess the results of pulp vitality after
immature upper third molar autotransplantation by using electric pulp testing
(EPT).
Pulpectomy was performed on 100 primary teeth and the radiograph
was exposed immediately post treatment to observe weather the root
canal filling was: flush-undefiled or overfilled.
Teeth were examined periodically, clinically and radio graphically to
assess success of the treatment.
For controlling the release of Ketoprofen from matrix tablets, combinations
between different polymers in different ratio were formulated.
Aim: The aim of this study is to investigate the applicability of HPMC combination with
Polymethacrylates (Eُudragit RS, RL & L100) for controlling the release of ketoprofen from matrix
tablets. Four types of HPMC with different viscosities were tested in the study.
The research aims to evaluate the micro shear bond strength of the calcium silicate cement
(Biodentine) and the glass ionomer cement (GIC) to dentine. The study was performed using
upper or lower premolars, and samples were divided into six equal s
ubgroups according to
the time period (3 h, 1 day, 1 week, 2 weeks, 4 weeks, 8 weeks), in order to study changes in
the values of shear bond strength with time. The comparative study showed that the success
rate of adhesion in the Biodentine group was smaller than that in the GIC group for the tested
premolars after 3 hours and one day, whereas the success rate in the Biodentine group was
greater than that in the GIC group for the tested premolars after 8 weeks.
Results showed a positive correlation between the mean values of shear bond strengths and
the studied time in Biodentine group, which ranged from 1.49 ± 0.18 MPa at 3 hours to a
maximum value of 2.65 ± 0.26 MPa after 8 weeks. While there was a negative correlation
between the mean values and the studied time in the GIC group and values ranged from 3.02
± 0.13 MPa at 3 hours and 2.06 ± 0.09 MPa at 8 weeks.
The study showed the advantage of Biodentine compared with GIC in terms of
micro-bonding to dentine, which can have a clinically significant importance in preventing
the micro leakage and reducing bacterial contamination.
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