An Evaluation of the Dimensional Accuracy of Resin Complete Denture Bases Using Conventional and Injection-pressing Procedures PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download An Evaluation of the Dimensional Accuracy of Resin Complete Denture Bases Using Conventional and Injection-pressing Procedures PDF full book. Access full book title An Evaluation of the Dimensional Accuracy of Resin Complete Denture Bases Using Conventional and Injection-pressing Procedures by Samuel Frejlich. Download full books in PDF and EPUB format.
Author: Samuel Frejlich
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
Get Book Here
Book Description
Author: Samuel Frejlich
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Dental instruments and apparatus
Languages : en
Pages : 122
Get Book Here
Book Description
Author: Ali Parvizi
Publisher:
ISBN:
Category :
Languages : en
Pages : 256
Get Book Here
Book Description
Author: Naveen Yadav
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659160004
Category :
Languages : en
Pages : 92
Get Book Here
Book Description
Poor adaptations of acrylic resin denture bases to the supporting tissues markedly decrease denture retention. Several denture base resin and processing techniques have been introduced to the profession, each claiming to produce a more accurate base. Microwave processing techniques has been introduced claims to minimize the dimensional changes.This purpose of this study was to compare the dimensional accuracy of three denture base resins when processed both by conventional water bath method and by use of microwave energy. Three Poly (MethylMethacrylate) heat cure resins selected for this study. These resins were processed by conventional water bath technique for 1 1/2 hours at 75 degree & half hour at 100 degree and by microwave energy for 3 mins at 500W. The measurements of acrylic resin denture base specimens were compared with the measurements of master metal die dimension keeping it as a standard measurement. The mean values of the difference in the points compared were calculated, & compared to each other to determine if there was a statistically significant difference between them at the 0.05 probability level using the students' independent test for pooled variances
Author: Gayle A. Laughlin
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
Get Book Here
Book Description
The accuracy of a complete denture base to its supporting tissues is of paramount importance to the fit, function, and health of the oral tissues. Polymerization shrinkage is an inherent characteristic of acrylic resin which can introduce discrepancies in the adaptation of the denture base, especially in the posterior palatal area. The purpose of this investigation was to determine if there was a statistically significant difference in the palatal adaptation of denture bases to their casts as a consequence of palatal shape, presence of mechanical anchoring, or the interaction of these two variables as measured at the vestibule, ridge, lateral palate and mid palate. Forty-eight denture bases were processed using the compression molding technique with Lucitone 199. The master casts vaied by steep or shallow palatal form and the presence or absence of mechanical anchoring holes placed in the land area adjacent to the posterior border of the base. The bases on their casts were sectioned at the posterior border area after processing and evaluated for exactness of adaptation. The gap at the interface of the base and the cast was measured at specific mediolateral locations. Analysis of the interface gap data was done by a three-way ANOVA. A statistically significant decrease of gap distance and improvement of adaptation for both shallow and steep denture bases were observed with the anchoring technique. There was ano statistically significant difference in the magnitude of the interface gap between the steep and shallow palate forms. However, the shallow forms had a wider gap area reaching from ridge to ridge, whereas the steep forms had a gap area confined mainly to the midline. The clinical success and retention of a maxiliary denture is directly related to the intimate fit of the base in the posterior palatal region. The simple procedure of placing anchorage in the master cast before processing has been shown to improve the adaptation and fit of the base in the critical posterior palatal area.
Author: Aqeel Ibrahim
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659436154
Category :
Languages : en
Pages : 72
Get Book Here
Book Description
Denture bases are commonly made from acrylic resins, which were introduced by Dr. Walter Wright back in 1937. Among these, polymethyl methacrylate (PMMA) is the most commonly used. PMMA material is mostly processed by wet heat and compression molding techniques, which deliver dentures with acceptable mechanical properties. However, certain dimensional changes are known to occur in acrylic resin during or after its processing. These changes hold clinical significance because for better adaptation to oral tissues, denture base material must have dimensional accuracy during and after its processing. However, inaccuracies tend to occur due to unavoidable changes during fabrication such as thermal expansion on heating, contraction on cooling and polymerization shrinkage. The purported significance of this study is to find out the most suitable cooling procedure for achieving maximum dimensional accuracy following a standard heating cycle. This will lead to the fabrication of a denture which will have better retention, support, stability.
Author: Mark Francis LoSchiavo
Publisher:
ISBN:
Category : Dental resins
Languages : en
Pages : 230
Get Book Here
Book Description
Author: Ping-Kang Cheng
Publisher:
ISBN:
Category :
Languages : en
Pages : 114
Get Book Here
Book Description
Author: Jon Craig Munoz
Publisher:
ISBN:
Category : Dental resins
Languages : en
Pages : 104
Get Book Here
Book Description
Author: Carol Dixon Hatrick
Publisher: Elsevier Health Sciences
ISBN: 1437723861
Category : Medical
Languages : en
Pages : 306
Get Book Here
Book Description
With this hands-on resource, you will learn the most current methods of placing -- or assisting in the placement -- of dental materials, and how to instruct patients in their maintenance. Dental Materials uses step-by-step procedures to show how to mix, use, and apply dental materials within the context of the patient’s course of treatment. Expert authors Carol Hatrick, W. Stephan Eakle, and William F. Bird enhance this edition with four new chapters, along with coverage of newly approved materials and esthetic tools including the latest advances in bleaching and bonding. A new companion Evolve website lets you practice skills with challenging exercises! Procedure boxes include step-by-step instructions for common tasks. Procedural icons indicate specific guidelines or precautions that need to be followed for each procedure. End-of-chapter review questions help you assess your retention of material, with answers provided in an appendix. End-of-chapter case-based discussions provide a real-life application of material covered in the chapter. Clinical tips and precautions emphasize important information, advice, and warnings on the use of materials. Key terms are defined at the beginning of each chapter, bolded within the chapter, and defined in the glossary. Objectives help you focus on the information to gain from each chapter. Introductions provide an overview of what will be discussed in each chapter. Summary tables and boxes make it easy to find and review key concepts and information. Full-color photos and illustrations show dental materials and demonstrate step-by-step procedures, including new clinical photos of bleaching and bonding. New Dental Ceramics chapter addresses the growth in esthetic dentistry by discussing porcelain crowns, inlays, and veneers and the process of selecting the proper shade. New Dental Amalgam chapter discusses the use of metal - still the most commonly used material in restorative and corrective dentistry. New Casting Alloys, Solders, and Wrought Metal Alloys chapter breaks down specific types of combination metals and the procedures in which they are used. New Dental Implants chapter covers several different types of implants as well as how to instruct patients on hygiene and home care of their implant(s). The Materials Handling section reflects the new Infection Control Environment (ICE) standards and all approved ADA methods for the disposal of surplus materials. A companion Evolve website includes exercises to help you identify images and master procedures, plus competency skill sheets to assess your understanding.
