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Register a new userThe Effect of Different Restorative Techniques on Micro Leakage in Large Occlusal Cavities with Undermined Cusps
تأثير تقنيات ترميم مختلفة في التسرب الحفافي في الحفر الإطباقة الواسعة ذات الحدبات المتداعية
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Damascus University ورقة بحثية
Publication date
2005
fields
Dentistry
and research's language is
العربية
Authors
رولا البني( باحث )
Created by
Shamra Editor
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إن المبادئ الأساسية للتداخل على المعالجات السنية يجب أن تنقص من فقدان السطوح السنية السليمة إلى الحد الأدنى خاصة في حال النخور الواسعة و إعادة معالجة الترميمات الفاشلة للأسنان الحية. هذه الدراسة تبحث في مقدار التسرب الحفافي leakage marginal لكلتا التقنيتين المختلفتين لعلاج الضرر الإطباقي الكبير. كلتا تقنيتي الربط (الكومبوزت الخلفي –أملغم Amalgam – Composite Posterior) ( و الاسمنت الزجاجي الشاردي –أملغم Glass inomer cement – Amalgam). تستخدمان نظامي الربط : - Exite - Syntac تم اِستُخْدِم اثنان و ثلاثون ضاحكاً أولَ علوي مقلوعاً كما تم تحضير حفر طاحنة واسعة بحدبات متهدمة.
Minimal intervention principles designed to limit the loss of natural tooth structure should be applied to all cavities especially extensive ones, as well as replacement of failed existing restorations. This study evaluates marginal leakage of two different techniques for the treatment of extensive occlusal lesions with posterior composite resin- Amalgam and Glass ionomer- Amalgam combined techniques, using two adhesive systems Syntac and Exite. Thirty two extracted maxillary first premolars were used. Standard extensive occlusal cavities with undermined cusps were prepared.
References used
Samer Hakimeh, jayalakshmi Vaidyanathan Milton L.Houpt, Microleakage of compomer Class V restorations: Effect of load cycling, thermal cycling, and cavity shape differences. J Prosth Dent 2000;83;194-203
Mauro Antonio de Arruda Nobilo Simonides Consani, and Mario Fernando de Goes, Influence of adhesive systems on the bonding of dental amalgam to glassionomer cement. J. Prosth Dent,1997;77:127-30
Philip L. Millstien, and Ghada Hussein Naguib, Effects of two resin adhesives on mechanical properties of set amalgam. J. Prosth Dent. 1995;47:106-9
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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.
The aim of this study was to determine the influence of dentinal region on shear
bond strength by comparing the shear bond strength between root and coronal dentin when using a nanoionomer
material (Ketac N100,3M Espe) and a fifth generation bondin
g material (Excite,Vivadent)
applied with a resin composite (Tetric-ceram,Vivadent).
The purpose of this study is to detect the relationship between dentin
bonding systems (total etch and self etch) and the marginal leakage of
composite resin restorations.
This study aimed to evaluate the extent of the
microleakage in the cavities which prepared with Er:YAG (erbium:
yttrium aluminum garnet) laser or diamond burs and restored by
using of different types of resin materials.
the importance of research to define the importance of the
restoration to preserve the identity of the country and its heritage and
authenticity as well as for the restoration of some of the buildings came
to show contemporary form processions of
progress and development
that we are witnessing in addition to the development of systems and
controls set standards and methods of restoration, protection and
maintenance in order to direct the business in the right direction and
organize repairs to stop the dangers arising wrong to intervene and
factors demise and the demise of heritage buildings, which are often
caused by personal interpretations resulting from the absence of
references and standards pertaining to restoration and especially in our
country, in addition to the non-observance of international standards for
restoration.
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