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Register a new userEfficacy of removal calcium hydroxide dressing from root canals by Passive Ultrasonic Irrigation and Using a file one size larger than MAF
دراسة فعالية إزالة ضماد ماءات الكالسيوم من الأقنية الجذرية باستخدام الإرواء فوق الصوتي السلبي و استخدام قياس أكبر من المبرد الذروي الرئيسي
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Aِl-Baath University ورقة بحثية
Publication date
2018
fields
Dentistry
and research's language is
العربية
Created by
Shamra Editor
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تعتبر بقايا ضماد ماءات الكالسيوم ضمن الأقنية الجذرية من مسببات فشل المعالجة اللبية، لذلك كان لابُد من إيجاد الطريقة الأفضل لإزالتها قبل الحشو النهائي للأقنية. الهدف من هذه الدراسة مقارنة فعاليّة إزالة الضماد بوساطة الإرواء فوق الصوتي السلبي أو استخدام قياس أكبر من المبرد الذروي الرئيسي المستخدم بالتحضير.
Residual Calcium Hydroxide dressing on the root canal is considered one of the reasons of endodontic treatment failure. So ,the removal of this dressing completely before filling is required. The aim of the study was to evaluate the efficiencies of passive ultrasonic irrigation And increasing the instrumentation of the medicated canal to the file one size larger than MAF in removal of Calcium Hydroxide dressing.
References used
Ahmad M, Pitt Ford TR, Crum LA (1987) Ultrasonic debridement of root canals: acoustic streaming and its possible role. Journal of Endodontics 14, 490–9
Ahmetoğlu F, Sımşek N, Keleş A,Ocak MS, Er K(2013). Efficacy of selfadjustingfile and passiveultrasonic irrigation onremoving calcium hydroxide from rootcanals. Dent Mater J;32:1005-1010
Balvedi RP, Versiani MA, Manna FF, Biffi JC (2010). A comparison of two techniques for the removal of calcium hydroxide from root canals. Int Endod J;43:763-768
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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.
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.
Ultrasonic Tips is considered one of the common tool used in the management of separated instruments in the root canal, . , this research aimed to evaluate the temperature rise of the outer surface of the root when using ultrasonic tips to remove separated instruments from mesiobuccal canal of the lower molars.
The specimen consists of 72 extracted teeth with curved roots
(15-35)degree . They were cleaned and preserved in formalin
for 48 hours. Each tooth was mounted in a self curing acrylic
block. The samples were divided into three groups. Each
group
(24 canals) was instrumented with one of the systems
(WaveOne, Reciproc, OneShape).
الهدف من البحث:
تصميم و تنفيذ منظومة توضيع بالترذيذ فوق الصوتي باستعمال جهاز ترذيذ منزلي
لتوليد الرطوبة، بغية الحصول على حمُسات كيميائية بوليميرية ذات بنى نانوية بدءاً من
مُلول البولي بيرول الناقل المصطنع بالأكسدة الكيميائية وفق نسب مولية مختلفة.
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