نام کاربری :
رمز عبور :
  به خاطر بسپار
کلمه عبور را فراموش کرده ايد؟
ثبت نام کاربر جديد
AWT IMAGE

AWT IMAGE
کودکان: In Vitro Study of Transverse Strength of Fiber Reinforced Composites

 In Vitro Study of Transverse Strength of Fiber Reinforced Composites

 

 R. Mosharraf*

, Z. Hashemi2, S. Torkan3

 *Associate Professor of Department of Prosthodontics, Member of Torabinejad Dental Research Center, School of Dentistry, Isfahan

 University of Medical Sciences, Isfahan, Iran.

 2-Dentist, Private Practice, Isfahan, Iran.

 3-Dentist, Post Graduate Student, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

 mosharraf@dnt.mui.ac.ir

 

 


 Abstract:

 Objective: Reinforcement with fiber is an effective method for considerable improvement in flexural properties of indirect composite resin restorations. The aim of this in-vitro study was to compare the transverse strength of composite resin bars reinforced with preimpregnated and non-impregnated fibers.

 Materials and Methods: Thirty six bar type composite resin specimens (3×2×25 mm) were constructed in three groups. The first group was the control group (C) without any fiber reinforcement. The specimens in the second group (P) were reinforced with preimpregnated fibers and the third group (N) with non-impregnated fibers. These specimens were tested by the three-point bending method to measure primary transverse strength. Data were statistically analyzed with one way ANOVA and Tukey's tests.

 Results: There was a significant difference among the mean primary transverse strength in the three groups (P<0.001). The post-hoc (Tukey) test showed that there was a significant difference between the pre-impregnated and control groups in their primary transverse strength (P<0.001). Regarding deflection, there was also a significant difference among the three groups (P=0.001). There were significant differences among the mean deflection of the control group and two other groups (PC&N<.001 and PC&P=.004), but there was no significant difference between the non- and pre-impregnated groups (PN&P=.813).

 Conclusion: Within the limitations of this study, it was concluded that reinforcement with fiber considerably increased the transverse strength of composite resin specimens, but impregnation of the fiber used implemented no significant difference in the transverse strength of composite resin samples.

 Keywords: Fiber Reinforced Composites ، Pre-Impregnated Fibers ، Non-Impregnated Fibers ، Transverse Strength ، Deflection


  Source: Journal of Dentistry of Tehran University of Medical Science

  Full text

بایگانی مطالب:

Spontaneous Regeneration of the Mandible after Hemimandibulectomy: Report of a Case
Oro-Dental Health Status and Salivary Characteristics in Children with Chronic Renal Failure
In vitro color change of three dental veneering resins in tea, coffee and tamarind extracts
Comparison of Peri-Implant Bone Loss and Survival of Maxillary Intrasinus and Extrasinus Implants After 2 Years
The Effect of Preparation Design on the Fracture Resistance of Zir-conia Crown Copings (Computer Associated Design/Computer Asso-ciated Machine, CAD/CAM System)
Primary School Teachers’ Knowledge Regarding Emergency Management of Avulsed Permanent Incisors
Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer
In Vitro Study of Transverse Strength of Fiber Reinforced Composites
Ameloblastic Fibro-Odontoma in Children: Report of 2 Cases
Orthodontic Approach to Dilacerated Central Incisor Localized Horizontally on the Anterior Nasal Spine: A Case Report
Conservative Management of a Large Dentigerous Cyst in a 6-year-old Girl: A Case Report
Primary Tooth Radicular Resorption as a Consequence of Self-Corrected Ectopic Eruption: 2 Unusual Cases
In Vivo Evaluation of the Color of Anterior Primary Teeth
Conservative Approach of Condylar Fracture in a Child by the Use of Rubber Elastics: 7-year Follow-up
Topical Iodine and Fluoride Varnish Effectiveness in the Primary Dentition: A Quasi-experimental Study
Recent Trends in Sugar Content and pH in Contemporary Soft Drinks
Ethylenediaminetetraacetic Acid and Citric Acid Solutions for Smear Layer Removal in Primary Tooth Root Canals
Primary Sjögren syndrome in a 2-year-old patient: role of the dentist in diagnosis and dental management with a 6-year follow-up
Peripheral ameloblastic fibro-odontoma or peripheral developing complex odontoma: report of a case
Oral health-related quality of life among survivors of childhood cancer

مطالب کدام بخش سایت بیشتر مورد نیاز شماست؟
پرسش و پاسخ
جشنواره شهید هدایت
کلینیک تخصصی دندانپزشکی
مجله علمی
نمایشگاه کتاب
نمایشگاه مواد و تجهیزات دندانپزشکی
نیازمندیها
   
:. کل کاربران ثبت شده: 168
:. کاربران حاضر در وبگاه: 0
:. میهمانان در حال بازدید: 5
:. تمام بازدید‌ها: 7725025
:. بازدید 24 ساعت قبل: 2820

کلیه حقوق این وب سایت متعلق به جامعه اسلامی دندانپزشکان می باشد.

صفحه اصلی | درباره ما | ارتباط با ما | نقشه سایت

Created in : 0.54 seconds with 51 queries by YEKTAWEB