scholarly journals Design of complete denture reinforced with metal base

2013 ◽  
Vol 60 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Srdjan Postic
Keyword(s):  
Neuromuscular Disorders ◽  
Acrylic Resin ◽  
Complete Denture ◽  
Complete Dentures ◽  
Denture Base ◽  
Metal Base ◽  
Metal Framework ◽  
Metal Frame ◽  
Edentulous Patients ◽  
Artificial Teeth

Introduction. Complete denture reinforced with metal bases is fabricated in cases of fracture risk as well as in selected patients with neuromuscular disorders. The aim of this report was to present different designs of metal framework for complete denture and their advantages in the treatment of edentulous patients. Material and Methods. The study included 116 edentulous patients who received complete dentures. The respondents were divided into two groups according to the type of denture used. Thirty one patients were rehabilitated with complete dentures reinforced with metal base, whereas 85 patients received conventional complete acrylic dentures. Metal bases were fabricated using Co-Cr-Mo alloy. Two designs different in regards to the vibrating line were fabricated: metal frame extended to the vibrating line and acrylic resin extended to the vibrating line. After investing and casting, metal bases were electropolished. Subsequent processes of arranging artificial teeth, waxing, flasking and finishing completed the fabrication process of dentures. Results. Denture base fractures were prevented in majority of patients. The design of upper denture where metal frame was extended to the vibrating line and metal base with elongation over the convex edentulous ridge in lower jaw were the most favored and successful in prosthetic rehabilitation of experimental group of edentulous patients. There was no need for rebasing of complete dentures reinforced with metal base. Conclusion. Complete denture reinforced with metal base presents a favorable design for rehabilitation of edentulous patients with well pronounced edentulous ridges and low tendency to resorption.

Bond between single artificial teeth and the base plate in removable denture metal framework

2018 ◽  
Vol 1 (90) ◽  
pp. 11-21 ◽  
Author(s):  
J. Taczała ◽  
J. Sawicki
Keyword(s):  
Base Plate ◽  
Acrylic Resin ◽  
Denture Base ◽  
Partial Denture ◽  
Metal Framework ◽  
Denture Plate ◽  
Removable Denture ◽  
Metal Frame ◽  
Artificial Teeth ◽  
Scientific Achievements

Purpose: The purpose of this paper is to analyse attempts at improving the bond between acrylic artificial teeth and the denture base plate - considered in the context of single incisors in framework denture. Design/methodology/approach: It is a review article focusing on the analysis of state of the art in the field of the bond between the polymerised acrylic (teeth) and the polymerising acrylic resin during the production of denture (denture plate). Previous works regard the issue of individual incisor teeth (both upper and lower) breaking off from the metal partial denture. Findings: The bond between artificial acrylic teeth and the acrylic denture plate of the prosthesis was discussed. Ways of improving this bond were also presented. Although researchers and companies offer many methods for improving this bond, none of them refer directly to the issue discussed in this article. In conclusion- the hitherto scientific achievements work well in the case of acrylic prostheses without a metal frame, which constitutes an obstacle for achieving the effect required. In this work, it is suggested that further research would not only develop and provide more detail on the issue of the bond between artificial teeth and the denture plate, but also solve the problem appearing in cases of metal partial denture. Originality/value: This article shows a significant problem that hasn’t been discussed in detail in the past.

scholarly journals Influence of balanced occlusion in complete dentures on the decrease in reduction of an edentulous ridge

2012 ◽  
Vol 69 (12) ◽  
pp. 1055-1060 ◽  
Author(s):  
Srdjan Postic
Keyword(s):  
Longitudinal Study ◽  
Complete Denture ◽  
Alveolar Ridge ◽  
Complete Dentures ◽  
Test Results ◽  
Male And Female ◽  
Panoramic Radiographs ◽  
Edentulous Patients ◽  
The Stability ◽  
Artificial Teeth

Background/Aim. Balanced occlusal arrangement of artificial teeth and balanced occlusion is a specific type of occlusion that preserves the stability of complete dentures. Balanced occlusion comprises realization of tooth contacts at the working side as well as at the balancing side, at the same time. The aim of this study was to assess the influence of balanced occlusal arrangement of artificial teeth on the decrease in reduction of edentulous alveolar ridge. Methods. A longitudinal study on 91 fully edentulous patients was conducted using their panoramic radiographs and parameters of vertical dimension of edentulous ridges. All the patients were clinically examined by the same and a qualified dental practitioner. Numerical values of parameters of vertical dimensions of edentulous ridges and lines were statistically processed and compared using the Student?s t-test. Results. Vertical dimensions and heights of edentulous ridges were different after comparison of parameters in complete denture wearers with balanced occlusion and complete denture wearers without bilaterally balanced occlusion, as well as between male and female edentulous patients. Statistically significant differences of heights were established in complete denture wearers? with a set of artificial teeth without balanced occlusion, at the baseline and 12 months after wearing of complete dentures. Conclusion. Balanced occlusion is a favored occlusal design in setting of artificial teeth in conventional complete dentures, which preserves edentulous ridge and influence the stability of dentures.

scholarly journals Technique for Rebasing and Tooth Replacement of the Implant Retained Fixed Complete Denture Incorporating an Existing Metal Framework

2013 ◽  
Vol 2 (2) ◽  
pp. 215
Author(s):  
E. A. Nahlah ◽  
P. S. Baker ◽  
D. S. Pannu ◽  
J. Londono
Keyword(s):  
Base Material ◽  
Acrylic Resin ◽  
Complete Denture ◽  
Vertical Dimension ◽  
Tooth Replacement ◽  
Denture Base ◽  
Impression Technique ◽  
Metal Framework

This article describes a simplified impression technique for replacement of acrylic resin denture base material and teeth for an implant retained fixed complete denture utilizing the existing metal framework. This method permits precise alignment of the impression and framework to implants and residual ridges, and simultaneously provides a cast and record for articulation of replacement teeth at the appropriate vertical dimension of occlusion.

scholarly journals Reestablishment of Occlusal Vertical Dimension in Complete Denture Wearing in Two Stages

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Danny Omar Mendoza Marin ◽  
Andressa Rosa Perin Leite ◽  
Norberto Martins de Oliveira Junior ◽  
Marco Antonio Compagnoni ◽  
Ana Carolina Pero ◽  
...  
Keyword(s):  
Complete Denture ◽  
Vertical Dimension ◽  
Clinical Report ◽  
Complete Dentures ◽  
Facial Esthetics ◽  
Long Time ◽  
Occlusal Vertical Dimension ◽  
Edentulous Patients ◽  
Two Stages ◽  
Artificial Teeth

The assessment and reestablishment of the occlusal vertical dimension (OVD) are considered important factors in the treatment of complete denture wearers. The long-time use of a complete denture can result in jaw displacement due to abrasion of the artificial teeth and residual ridge resorption, causing esthetic complications. Most patients with old dentures and incorrect OVD accept reestablishment of the OVD with new complete dentures, even if they were used to their old dentures. The present clinical report describes a method of gradual reestablishment of OVD using a diagnostic acrylic splint on artificial teeth in old complete dentures before the manufacture of new complete dentures.Clinical Significance. The use of a reversible treatment for reestablishment of the OVD in old complete dentures with a diagnostic occlusal acrylic splint allows for the reestablishment of the intermaxillary relationship, providing physiological conditions of masticatory performance associated with the recovery of facial esthetics in edentulous patients.

scholarly journals Digital Workflow to Fabricate Complete Dentures for Edentulous Patients Using a Reversing and Superimposing Technique

2021 ◽  
Vol 11 (13) ◽  
pp. 5786
Author(s):  
Hwa-Jung Lee ◽  
Jeongho Jeon ◽  
Hong Seok Moon ◽  
Kyung Chul Oh
Keyword(s):  
Additive Manufacturing ◽  
Computer Aided Design ◽  
Digital Data ◽  
Complete Dentures ◽  
Intraoral Scanner ◽  
Digital Workflow ◽  
Denture Base ◽  
Scan Data ◽  
Edentulous Patients ◽  
Aided Design

This technical procedure demonstrates a 4-step completely digital workflow for the fabrication of complete dentures in edentulous patients. The digital scan data of the edentulous arches were obtained using an intraoral scanner, followed by the fabrication of modeless trial denture bases using additive manufacturing. Using the trial denture base and a wax rim assembly, the interarch relationship was recorded. This record was digitized using an intraoral scanner and reversed for each maxillary and mandibular section individually. The digital scan data directly obtained using the intraoral scanner were superimposed over the reversed data, establishing a proper interarch relationship. The artificial teeth were arranged virtually and try-in dentures were additively manufactured. Subsequently, the gingival and tooth sections were additively manufactured individually and characterized. Thus, fabrication of digital complete dentures can be accomplished using digital data characteristics. The workflow includes data acquisition using an intraoral scanner, data processing using reverse engineering and computer-aided design software programs, and additive manufacturing.

Counteracting the darkening effect of a metal framework on acrylic resin denture base material

1991 ◽  
Vol 65 (6) ◽  
pp. 859 ◽  
Author(s):  
John R. Ivanhoe ◽  
Eric D. Adrian ◽  
William A. Krantz
Keyword(s):  
Base Material ◽  
Acrylic Resin ◽  
Denture Base ◽  
Metal Framework

scholarly journals Computerized cephalometric evaluation of changes following treatment with complete dentures

2012 ◽  
Vol 65 (3-4) ◽  
pp. 163-167
Author(s):  
Ljiljana Strajnic ◽  
Branka Miskovic
Keyword(s):  
Longitudinal Analysis ◽  
Computer Software ◽  
Complete Denture ◽  
Cephalometric Analysis ◽  
Complete Dentures ◽  
Longitudinal Evaluation ◽  
Facial Height ◽  
Cephalometric Radiograph ◽  
Edentulous Patients ◽  
Diagnostics And Therapy

The aim of this study was to provide longitudinal evaluation of the changes after complete dentures therapy and the rate of residual ridge resorption through a six-year period of denture wearing. The authors presented the case of a 76-year-old patient, edentulous for twelve years, wearing complete dentures for six years, with the eugnat jaw relationship. Cephalometric radiograph was carried out in the process of new complete denture production, while the evaluation was carried out after six years. Cephalometric analysis was performed by using ?Dr. Ceph? computer software (FYI Technologies, GA, USA). After six years, the reduction of anterior total facial height was 5.5 mm and the anterior lower facial height was 5.5 mm, the vertical residual ridge reduction of the maxilla was 1.4 mm and the reduction of the mandible was 3mm. The study confirms the reliability and advantages of cephalometric analyses and reveals their application possibilities in prosthetic diagnostics and therapy, as well as in evaluation of rehabilitative results in edentulous patients and longitudinal analysis of changes on the orofacial complex tissues and intemaxillary relationships.

scholarly journals Effect of Denture Base Reinforcement Using Light Cured E- Glass Fibers on the Level of Salivary Immunoglobulin A

2018 ◽  
Vol 6 (11) ◽  
pp. 2168-2172
Author(s):  
Shady M. El Naggar ◽  
Mohamed I. Seif El Nasr ◽  
Hassan M. Sakr ◽  
Sherihan M. Eissa ◽  
Asmaa N. Elboraey ◽  
...  
Keyword(s):  
Immunoglobulin A ◽  
Acrylic Resin ◽  
Enzyme Linked Immunosorbent Assay ◽  
Complete Dentures ◽  
Denture Base ◽  
Mean Values ◽  
Glass Fibres ◽  
Significant Difference ◽  
Salivary Immunoglobulin A

BACKGROUND: A gap still exists between in vitro and clinical studies concerning the biocompatibility of the material in the oral environment and their potential to cause immunological undesirable side effects. The uses of glass fibres to improve the mechanical properties of acrylic resin denture base polymers are well documented in vitro. AIM: The present study aimed to evaluate the effect of denture base reinforcement using light-cured E- glass fibres mesh on the level of salivary immunoglobulin A (S-IgA) in patients wearing complete dentures. MATERIAL AND METHODS: Fourteen completely edentulous patients, in need of complete dentures, participated in the study. The patients were divided into two groups (n = 7) according to the treatment protocol. In the first group, patients received conventional heat-cured acrylic resin dentures. In the second group, the mandibular dentures were reinforced using light cured resin impregnated E glass fibres mesh. In both groups, salivary samples were collected using passive drool technique. The level IgA was assessed by enzyme-linked immunosorbent assay (ELISA) technique at different time intervals. Statistical analysis was carried out using one-way ANOVA followed by Tukey`s post-hoc test and independent t-test. The significant level was set at P ≤ 0.05. RESULTS: Acrylic resin dentures and reinforced ones demonstrated an increase in the mean values of IgA level at the end of the follow-up intervals. And this increase was statistically significant (P ≤ 0.05). Although, the reinforced dentures revealed higher mean values, there was no statistically significant difference between the two groups (P > 0.05) CONCLUSIONS: Within the limitations of the present study, the following could be concluded: (1) the insertion of complete dentures induced changes in the level of IgA; and (2) denture base reinforcement using light cured resin impregnated E-glass fibres mesh had a similar effect to that of heat cured acrylic resin on the level of IgA.

scholarly journals Processing Errors in Complete Denture Fabrication - A Survey

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 1371-1377
Author(s):  
Farhat Yaasmeen Sadique Basha ◽  
Venkatesh Kommi ◽  
Raj S S
Keyword(s):  
Patient Satisfaction ◽  
Dental Students ◽  
Complete Denture ◽  
Complete Dentures ◽  
Elder Patients ◽  
Facial Shape ◽  
Cad Cam ◽  
Materials Used ◽  
Edentulous Patients ◽  
Processing Errors

There has been an increase in the incidence of complete edentulism among the elder patients. Complete dentures are the most common and preferred treatment of choice. Complete dentures help in masticatory function and restore the facial shape of the edentulous patients. Fabrication of the complete dentures is, therefore, a very important task for the clinician to ensure patient satisfaction. Errors may occur during the denture fabrication and these are called processing errors. It is a multifactorial process. The aim of the survey is to study the errors that occur during processing of a complete denture. It is a questionnaire based study conducted with a batch of 100 dental students. The questionnaire consisted of 16 questions focused on different fabrication techniques, timing, materials used, etc. by various students. The data collected was represented statistically and discussed. Dough technique was the most preferred method adopted by 39% of the students. Shorter curing cycles produced less defects, but majority of the students used longer cycles (41%). Most of them reported fractures (16%) and microporosities (11%) as defects. We can conclude that there are a few areas of error during the processing of dentures by the dental students. The incidence of these errors, however appears to be low. There is a scope for CAD/CAM complete dentures in the future to eliminate the possibilities of errors.

scholarly journals Evaluation of Maximum Biting Force in Two Different Attachment Systems (Bollard vs. Ball and Socket) Retaining Mandibular Overdenture: A Split-mouth Design

2021 ◽  
Vol 9 (D) ◽  
pp. 47-53
Author(s):  
Reham Tharwat Kamal Elbeheiry ◽  
Gehan F. Mohamed ◽  
Amr Mohamed Ismail Badr
Keyword(s):  
Surgical Technique ◽  
Acrylic Resin ◽  
The Other ◽  
Complete Dentures ◽  
Two Stage ◽  
Occlusal Force ◽  
Edentulous Patients ◽  
The Right ◽  
Mandibular Overdenture

AIM: The study was conducted to evaluate maximum biting force (MBF) in two different attachment systems (bollard a vs. ball and socket attachment) retaining mandibular overdenture using a split-mouth design. SUBJECTS AND METHODS: Twelve completely edentulous patients received complete dentures and after adaption of the patient with the new denture, 24 implants were inserted in the canine region using two-stage surgical technique and conventional loading protocol. Six patients received the Bollard attachment at the right side and the Ball and Socket at the left side. Moreover, the other six patients received the bollard attachment at the left side and the ball and socket attachment at the right side. Each patient was treated according to split-mouth design. Insertion of each of the attachment type was assigned randomly. Using occlusal force meter instrument, MBF was measured immediately after loading (0), after 6 months (6), and after 12 months (12). RESULTS: Significant statistical differences (p < 0.05) were obvious in in MBF between Attachment (1) and Attachment (2) immediately after loading (0 months), after 6 months (6) and after 12 months (12) follow-up visits. CONCLUSION: Mandibular implant retained overdenture received Bollard abutment that retained with the denture by the help of resilient liner “Retention.sil”* without housing have higher biting forces than mandibular implant retained overdenture with ball abutment where the plastic house was picked up by monomer free self-cured acrylic resin.

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