Download or read book An Evaluation of the Dimensional Accuracy of Resin Complete Denture Bases Using Conventional and Injection pressing Procedures written by Samuel Frejlich and published by . This book was released on 1988 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The International Journal of Prosthodontics written by and published by . This book was released on 1993 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of the Dimensional Accuracy of Injection Molded Denture Base Materials to that of Conventional Pressure pack Acrylic Resin written by Ali Parvizi and published by . This book was released on 1998 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparative Study of Dimensional Accuracy of Three Denture Base Resin written by Naveen Yadav and published by LAP Lambert Academic Publishing. This book was released on 2012-07 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book A Comparison of Palatal Adaptation in Acrylic Resin Denture Bases Using Conventional and Anchored Processing Techniques written by Gayle A. Laughlin and published by . This book was released on 1994 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Effect of Cooling Procedures Over Linear Dimensional Changes in PMMA written by Aqeel Ibrahim and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book The Effect of Processing Techniques on the Dimensional Accuracy of Acrylic Resin Dentures written by Mark Francis LoSchiavo and published by . This book was released on 1985 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison of Dimensional Accuracy of Denture Bases Produced by Means of the Conventional Processing Technique Versus a Dry Heat High Pressure Processing Technique written by Ping-Kang Cheng and published by . This book was released on 1980 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Gypsum Products on the Dimensional Accuracy of Acrylic Resin Denture Bases written by Jon Craig Munoz and published by . This book was released on 1986 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Denture Repair Strong and Quick Method written by Farhan Shah and published by LAP Lambert Academic Publishing. This book was released on 2010-04 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The heat cure denture base resins are extensively used for their excellent properties such as ease of handling, polishing and esthetics etc. However, the mechanical strength is not sufficient to maintain the longevity of denture. The fracture of acrylic resin denture is a common clinical occurrence. The ultimate goal of denture repair is to restore the denture s original strength and avoid further fracture. Satisfactory repairs must be easily and rapidly completed, match the original color of the material and maintain the dimensional accuracy. The objectives of the study are to evaluate the transverse strength and to estimate impact resistant of denture base acrylic resin repaired by different methods having different joint surface contours, and compares it with denture base acrylic resin repaired by conventional method. The work is useful for anybody and everybody who fabricates and repairs dentures. It promises meaningful information to dental undergraduates in clinics, interns, general dental practitioners, lab technicians, post-graduates and research scholars. It will be helpful to both dental academicians and clinicians.

Download or read book A Comparison of the Dimensional Accuracy of Two Denture Base Processing Methods Evaluated by Two Testing Modalities written by Andrea D. Jackson and published by . This book was released on 1988 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of Dimensional Changes of Injection and Conventional Processing of Two Rubber reinforced Denture Base Acrylic Resins written by Daniel Leagh Cruz and published by . This book was released on 1989 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Glossary of Prosthodontic Terms written by and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prosthodontic Treatment for Edentulous Patients written by George A. Zarb and published by Elsevier Health Sciences. This book was released on 2012-03-15 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the functional and esthetic needs of edentulous patients, Prosthodontic Treatment for Edentulous Patients: Complete Dentures and Implant-Supported Prostheses, 13th Edition helps you provide complete dentures, with and without dental implant support. It addresses both the behavioral and clinical aspects of diagnosis and treatment and covers treatment modalities including osseointegration, overdentures, implant-supported fixed prosthesis, and the current and future directions of implant prosthodontics. New to this edition are full-color photographs and coverage of immediately loaded complete dental prostheses. From lead editor and respected educator George Zarb, Prosthodontic Treatment for Edentulous Patients provides an atlas of clinical procedures and emphasizes the importance of evidence-based treatment. - Short, easy-to-read chapters cover the essentials of care for both short- and long-term patients, stressing the importance of evidence-based treatment. - Expanded coverage of implant prosthodontics addresses the clinical protocols for implant-retained and implant-supported prosthodontic management. - Specific chapters address the three surfaces of the complete denture: (1) an impression or intaglio surface, (2) a polished surface, and (3) an occlusal surface, the integration of which is crucial to creating a stable, functional, and esthetic result. - Chapter on health and nutrition examines a number of systemic conditions (vesciculoerosive conditions, systemic lupus erythematosus, burning mouth syndrome, salivary dysfunction, Sjögren's syndrome, hyper/hyposalivation, diabetes) that affect the oral cavity and specifically influence the prognosis for wearing complete dentures or for accepting osseointegrated prostheses. - Chapter on the time-dependent changes which occur in the oral cavity focuses on both time-related direct (ulcer/cheek biting, irritation hyperplasia, denture stomatitis, flabby ridge and pendulous maxillary tuberosities, hyperkeratosis and oral cancer, residual ridge reduction) and indirect (atrophy of masticatory muscles, nutritional status and masticatory function, control of sequelae) changes in the oral environment, and provides strategies to minimize the risk of such changes. - Chapter on the techniques used to prolong the life of complete dentures focuses on the two techniques used to extend the life of dentures: relining and rebasing, also touching on denture duplication. - Well-respected editors and contributors are the leaders in their field, lending credibility and experience to each topic.

Download or read book Accuracy of Injected and Poured Denture Base Acrylic Resin written by David Lafuente and published by . This book was released on 1997 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Clinical Performance of CAD CAM Fabricated Complete Dentures written by Paola C. Saponaro Parra and published by . This book was released on 2015 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Conventional methods of complete denture (CD) fabrication involve multiple and complex clinical and laboratory procedures. With the introduction of CAD/CAM fabricated CDs, these techniques seek to ameliorate the potential disadvantages associated with conventional complete denture fabrication and highlight potential advantages such as reduced number of patient visits and improved fit of the prostheses. However, comprehensive clinical data on CAD/CAM complete dentures, that conform to an evidence based approach, are severely lacking in the available literature. To date, there are few, if any, randomized clinical trials or retrospective analyses evaluating the clinical performance and behavior of CAD/CAM fabricated dentures. In this study, patients who received CAD/CAM fabricated CDs (AvaDent® Global Dental Science LLC, Scottsdale, Ariz.) at The Ohio State University College of Dentistry were identified. Using a dental software search tool (Windent EE; Carestream Dental), the total number of CAD/CAM fabricated CDs treated within the Pre-doctoral Comprehensive Care Clinics, Advanced Prosthodontics Clinic and Dental Faculty Practice Clinic between the years 2012 and 2014 were identified. Retrospectively, data were collected from these charts of patients. Data were collected from the reviewed charts to identify and assess objective and subjective treatment outcomes including: number of appointments needed to deliver the final complete denture prostheses, number of post delivery adjustments needed due to presence of sore spots, and the reported complications with these prostheses such as compromised denture retention, fractures, incorrect vertical dimension of occlusion and/or incorrect centric relation. It was also determined whether the experience level of the operator had an influence on the number of appointments needed to deliver the final prosthesis and in the total amount of complications observed. In addition, a 13-item questionnaire was sent in the mail to those patients included in this study, in order to determine overall patient satisfaction with questions referencing their current complete denture experience. A total of fifty patients were included in this study (25 female and 25 male) between the ages of 26-90 with a mean of 62.64 years of age. The mean number of appointments needed to deliver the prosthesis in all operator experience categories (PRED, GRPR, DFP) was 2.38 compared to the control number of appointments claimed by the company as 2. In regard to post insertion adjustment visits, the mean number for the fifty patients treated was 2.12. Of the 94 arches completed, 23 prosthesis could not be delivered at the second appointment. For this, the most common reported reason were lack of retention (9/23) and incorrect vertical dimension of occlusion (4/23). All 23 dentures not delivered in the second appointment were delivered at the third appointment. No significant differences were found for number of appointments needed to deliver the prostheses in relation to operator experience. No differences were found for occurrence of a complication versus the level of operator experience. In regard to the survey component of this study, out of the 19 patients who participated, 14 of those were experienced denture wearers and it was concluded that this group, a significant difference could not be demonstrated in their ratings of agreement regarding the digital complete dentures being better than their conventional set. This data could suggest, as the company claims, that this is a cost-effective treatment modality and proves beneficial for both the clinician and patient as the number of appointments needed to deliver these dentures was considerably less than those fabricated the conventional way, thus potentially enhancing productivity. This outcome, in turn, could translate into reduced chair time and cost burden to the clinician without compromising the quality of the overall treatment.

Download or read book The Evaluation of 3 dimensional Polymerization Changes of a Denture Resin Utilizing Injection Molding with Water Bath Polymerization and Microwave Polymerization written by Gustavo E. Lores and published by . This book was released on 2016 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: