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Register a new userIn Vitro Study to Compare The Microleakage Of Silorane -Based Composite Restorations In Primary Teeth Prepared By Burs And Er:YAG Laser
دراسة مخبرية لمقارنة التسرب الحفافي لترميمات كومبوزيت السيلوران على الأسنان المؤقتة المحضرة بالسنابل و ليزر Er:YAG
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Added by
Aِl-Baath University ورقة بحثية
Publication date
2017
fields
Dentistry
and research's language is
العربية
Created by
Shamra Editor
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تقييم التسرب الحفافي لترميمات كومبوزيت السيلوران على الأسنان المؤقتة المحضرة بالسنابل و ليزر Er:yag (مع أو بدون استخدام التخريش الإضافي).
The aim of this study is to evaluate the microleakage resultant from; Silorane resin composite restorations in primary teeth Prepared Using Burs And Er:YAG Laser with or without using additional etching.
References used
Genovese M, Olivi G. Laser in paediatric dentistry: patient acceptance of hard and soft tissue therapy. European journal of paediatric dentistry. 2008;9(1):13
Bowen R. Properties of a silica-reinforced polymer for dental restorations. Journal of the American Dental Association (1939). 1963;66:57
Kinomoto Y, Torii M, Takeshige F, Ebisu S. Comparison of polymerization contraction stresses between self-and lightcuring composites. Journal of dentistry. 1999;27(5):383-9
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Aim: to compare the effect of multiple usage and surface coarseness of diamond
burs on marginal microleakage of cervical resin composite restorations.
Materials and methods: sixty extracted premolars without caries were chosen. The
sample was rand
omly divided into three groups: n1=n2=n3=20. Group(1): class v cavities
were prepared using super coarse diamond burs, group(2): prepared by coarse diamond
burs, whereas group)3(: prepared by medium coarse diamond burs. All cavities were
restored by resin composite, then The teeth were thermocycled and immersedIn5%solution
of methylene blue dye for 12hours.Then the teeth were sectioned vertically, Dye
penetration was evaluated using a 10X stereomicroscope at the occlusal and gingival
margins. Data were collected and statistical analysis was conducted.
Results: The results showed that the multiple use of super coarse diamond burs
caused no significantly statistically affect on occlusal and gingival microleakage (P>0.05).
However, the multiple use of coarse and medium diamond burs caused significantly
statistically affect on gingival marginal microleakage (P<0.05).
The elapsed time is considered as an essential factor when some
procedures are required on resin composite restorations like
repairing, etc.., and the question is whether this factor is going to effect on using silorane resin composite.
Twenty sil
orane based resin composite blocks were prepared
(8×8×4)mm, randomly assigned into two groups: the first group 10 blocks, half of each resin block was removed by diamond burs after thermocycles, the second group 10 blocks also half of each resin block was removed by diamond burs after fabrication. All Interfacial surfaces were conditioned by (Cojet™, 3M ESPE). Blocks were restored with silorane resin composite and subjected to thermocycles. Microleakage observed under a stereomicroscope after blocks were immersed in 0.5% basic fuchsin solution for 10 s, and transversely sectioned.
Mann-Whitney U test found no statistically significant differences
in microleakage between two groups either with fresh silorane
resin composite group or aged silorane resin composite group.
Objective: To compare effect laser Er:Yag and polyacrylic acid on
microleakage of of resin-modified glass-ionomer cement.
Analysis of variance shows no statistical differences between
three groups .
The aims of this study were to evaluate the microleakage in the Class II Cavities Restored with methacrylate resin composite (Tetric Ceram HB) or silorane resin composite (P90 Filtek) that had been stored in different situations and temperatures. Mat
erials and Methods: thirty six intact human upper first premolars were employed. Two Class II cavities with specific dimensions had prepared on each tooth mesially and distally. Teeth were Restored by Methacrylate Resin (HB IVOCLAR), Silorane Resin (P90), Under three different conditions: Group (A): application of composite and Adhesive System at room temperature (24°C), Group (B): application of composite and Adhesive System, immediately after removal from refrigerator temperature (4°C), Group (C): application of composite and Adhesive System, 30 minutes after removal from the refrigerator at room temperature (24°C).Results: This study observed a statistically significant increase in microleakage when applying each of methacrylate composite (HB IVOCLAR) and silorane composite (P90) immediately after removal from refrigerator temperature (4°C) Compared when applied at room temperature (24°C) and when applied 30 minutes after removing from refrigerator temperature, no significant differences were found between silorane composite (P90) and Methacrylate composite (Tetric HB) in microleakage when comparing the two types of resin in the three ways used in storing both resins.
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.
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