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

AWT IMAGE
ترمیمی: Loading Standardization of Postendodontic Restorations In Vitro: Impact of Restorative Stage, Static Loading, and Dynamic Loading

Loading Standardization of Postendodontic Restorations In Vitro: Impact of Restorative Stage, Static Loading, and Dynamic Loading  

Authors: G Sterzenbach 1• M Rosentritt 2• R Frankenberger3 • S Paris 4• M Naumann*

 1-Guido Sterzenbach, DDS, DrMedDent, Department of Prosthodontics, Geriatric Dentistry, and Craniomandibular Disorders, Charité–Universitätsmedizin Berlin, Berlin, Germany

 2-Martin Rosentritt, Dipl-Ing (FH), PhD, associate professor, Department of Prosthetic Dentistry, Regensburg University Medical Center, Regensburg, Germany

 3-Roland Frankenberger, DDS, DrMedDent, professor, Department of Operative Dentistry and Endodontology, University of Marburg, Marburg, Germany

 4-Sebastian Paris, DDS, DrMedDent, Clinic for Conservative Dentistry and Periodontology, School for Dental Medicine, Christian Albrechts-Universität zu Kiel, Kiel, Germany

 *Michael Naumann, DDS, DrMedDent, professor, Department of Prosthetic Dentistry, Center of Dentistry, University of Ulm, Ulm, Germany

micha.naumann@gmx.de


Abstract:


Clinical Relevance

 Dentists should read scientific papers carefully when searching for evidence for a specific treatment approach regarding postendodontic restoration, since inappropriate methodology may result in misleading clinical recommendations.

SUMMARY

 Objective:

 The load capability of post-restored endodontically treated teeth (ETT) can be determined at different restorative stages. It was the aim of this study to compare the load capability of ETT at these stages.

 Materials and Methods:

Maxillary central incisors were divided into 4 groups (n=10) and endodontically treated. Specimens were restored with: (I) only glass fiber posts (GFP); (II) GFP and composite build-up with 2 mm ferrule; (III and IV) with additional adhesively luted all-ceramic crowns. Group (I) to (III) were statically loaded, and group (IV) was exposed to thermomechanical loading (TML) and subsequent static loading.

 Results:

 The lowest median load level of 73 N was determined for group (I). The maximum median load value of 331 N was found for group (III). The comparison of Fmax [N] of group (I), (II) and (III) revealed significant differences between the groups (p<0.001). The specimens of group (IV) failed at significantly lower load values (p<0.005) as similarly restored specimens of group (III) which were only statically loaded. The stage of restoration and TML loading prior to static loading had a significant impact on fracture patterns (p=0.006).

 Conclusion:

 Every additional restorative step torwards a final crown-restored ETT significantly increased the load capability. TML prior to load-to-fracture testing of the complete restorative complex, ie. post, core and crown, significantly decreased maximum load capability.


  Source: Operative Dentistry

  Full text

بایگانی مطالب:

Standardizing failure,success, and survival decisions in clinical studies of ceramic and mental-ceramic fixed dental prostheses
Longevity of posterior composite restorations: Not only a matter of materials
Durability of bones and clinical success od adhesive restoration
Correlation Of Cilnical performance with 'in vitro tests' of restorative dental materials that use polymer-based materics
The slippery slope - critical perspectives on in vitro research methodologies
Dimethacrylate network formation and polymer property evolution as determined by the selection of monomers and curing conditions
The future of dental devices is digital
Predicting clinical biological response to dental materials
Effect of Resin Cement System and Root Region on the Push-out Bond Strength of a Translucent Fiber Post
Loading Standardization of Postendodontic Restorations In Vitro: Impact of Restorative Stage, Static Loading, and Dynamic Loading
Influence of the Curing Mode on Fluoride Ion Release of Self-adhesive Resin Luting Cements in Water or During pH-Cycling Regimen
Effect of Prewarming and/or Delayed Light Activation on Resin-Modified Glass Ionomer Bond Strength to Tooth Structures
Long-Term Nanoleakage Depth and Pattern of Cervical Restorations Bonded With Different Adhesives
Cross-Compatibility of Methacrylate-Based Resin Composites and Etch-and-Rinse One-Bottle Adhesives
Reparability of Aged Silorane With Methacrylate-Based Resin Composite: Micro-Shear Bond Strength and Scanning Electron Microscopy Evaluation
Proximal Marginal Overhang of Composite Restorations in Relation to Placement Technique of Separation Rings
Data Comparison Between Two Dental Spectrophotometers
Randomized Clinical Trial of Four Adhesion Strategies: 18-Month Results
Treatment of Invasive Cervical Resorption With Sandwich Technique Using Mineral Trioxide Aggregate: A Case Report
The Tucker Technique: Conservative Molar Inlays Preserving the Transverse Ridge

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: 173
:. کاربران حاضر در وبگاه: 0
:. میهمانان در حال بازدید: 172
:. تمام بازدید‌ها: 12684290
:. بازدید 24 ساعت قبل: 7894

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

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

Created in : 0.55 seconds with 49 queries by YEKTAWEB