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PubMed1975

Denture repairs.

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Acrylic Resins↗
PubMedDate not supplied

Oral rehabilitation with osseointegrated implants in a patient with oromandibular dystonia with blepharospasm (Brueghel's syndrome): a patient history.

Oromandibular dystonia with blepharospasm (also known as Brueghel's syndrome, Meige's syndrome, or idiopathic orofacial dystonia) is characterized by intense and involuntary spasms of the orofacial muscles, with a frequent loss of teeth and occlusal alterations that worsen the dystonic manifestations and cause mucosal lesions that can lead to complete edentulism. The history of a patient with oromandibular dystonia who was rehabilitated with mandibular overdentures supported by endosteal implants is presented. Oral rehabilitation with implant-supported overdentures improved the situation, despite serious problems with instability. Mandibular overdentures supported by endosteal implants were satisfactorily used to re-establish occlusion, ensuring prosthetic stability and improving the dynamics of the masticatory muscles.

Aged↗
PubMed1995

["Prosthetic condition" and satisfaction with dentures].

This study introduces the concept of 'prosthetic condition', combining the professionally assessed complete denture quality and quality of the residual alveolar ridge. In a group of 397 complete maxillary and mandibular denture wearers the prosthetic condition was assessed and the denture satisfaction recorded. The total prosthetic condition (maxillary and mandibular combined) was good in 225 (57%), moderate in 81 (20%), and poor in 91 (23%) subjects; the mandibular prosthetic condition was good in 155 (39%), moderate in 148 (38%), and poor in 94 (23%) subjects; 297 (75%) subjects were satisfied with their dentures. None of the criteria used for the prosthetic condition could explain the denture satisfaction. Furthermore, there was no significant correlation between prosthetic condition and denture satisfaction.

Adult↗
PubMedDate not supplied

Does a prosthodontist spend more time providing mandibular two-implant overdentures than conventional dentures?

PURPOSE: In this article, the time taken by a prosthodontist to fabricate and maintain mandibular overdentures retained by two implants and conventional dentures is compared. MATERIALS AND METHODS: Sixty edentulous patients between the ages of 65 and 75 completed a randomized clinical trial. All received new maxillary conventional dentures and either a mandibular conventional denture (n = 30) or a two-implant overdenture on ball attachments (n = 30). The time spent by the prosthodontist and the number of visits required for treatment, including both scheduled and unscheduled visits, were recorded for each patient from preliminary impressions to 6 months following delivery. Data from the two groups were compared using Mann-Whitney U tests. RESULTS: The prosthodontist spent a mean total time of 296 minutes in treating an implant overdenture patient and 282 minutes on a conventional denture patient during the period from preliminary impressions to the 6-month follow-up. The mean numbers of appointments were 10.1 (implant group) and 10.8 (conventional group). These differences were not significant. CONCLUSION: Although additional knowledge is required to treat patients with implant prostheses, the time required by the prosthodontist to provide two-implant mandibular overdentures with ball attachments was not significantly different than the time needed for conventional denture treatment.

Aged↗
PubMedDate not supplied

Correlation between patient satisfaction with complete dentures and denture quality, oral condition, and flow rate of submandibular/sublingual salivary glands.

PURPOSE: The purpose of this study was to examine the correlation between patient satisfaction with complete dentures and parameters of denture quality, oral condition, and flow rate of the submandibular and sublingual salivary glands. MATERIALS AND METHODS: The parameters were evaluated on 50 denture wearers using semiquantitative scales and a recently described submandibular/sublingual saliva collector. RESULTS: Most patients had a medication-induced reduced salivary flow rate (mean 0.024 mL/min/gland; SD 0.040). Submandibular/sublingual salivary flow rate correlated statistically with six denture satisfaction parameters: maxillary denture retention and comfort, mandibular denture retention and comfort, abilities of chewing, and speech. Residual alveolar ridge resilience, maxillary ridge shape, and denture quality did not significantly correlate with denture satisfaction. Characteristics of musculature correlated significantly only with subjective maxillary denture retention, and mandibular ridge shape correlated with comfort. CONCLUSION: Submandibular/sublingual salivary flow rate is an important factor in denture satisfaction. The retention of the maxillary denture was correlated to the oral musculature characteristics, and the mandibular denture comfort was correlated to the mandibular ridge shape. Denture satisfaction was not affected by other anatomic or denture quality-related parameters.

Aged↗
PubMed2003

[Study on retention and stability of linear occlusal complete dentures].

OBJECTIVE: To learn retention and stability of linear occlusal complete dentures by investigating the subjective feelings of patient and the value of retention force. METHODS: Static retention forces of maxillary and mandibular dentures were measured for 25 patients wearing linear occlusal dentures by using Hz-1 retention dynamometer. The subjective feelings of patients in functional state were gained simultaneously through questionnaire. RESULTS: Linear occlusal dentures demonstrate good retention in static and dynamic state. Among patients with severe resorption of residual ridge (RRR), mandibular linear occlusal dentures (shown good retentive subjective feelings) demonstrate significantly smaller retention force than those with slight or medium degree of RRR. There is no correlation between the subjective feelings and the values of retention forces of mandibular dentures. The subjective feelings of patients wearing new linear occlusal dentures are much better than that of old anatomic occlusal dentures. CONCLUSION: Linear occlusal dentures improve the performances of dentures by enhancing their stability during mastication movement.

Aged↗
PubMedDate not supplied

Patient satisfaction with mandibular implant overdentures and conventional dentures 6 months after delivery.

PURPOSE: This study examined patient satisfaction with conventional complete dentures and mandibular implant overdentures opposing conventional maxillary dentures 6 months after delivery. MATERIALS AND METHODS: Sixty edentulous subjects (aged 65 to 75 years) were randomly assigned to either a mandibular conventional denture or an overdenture supported by two implants with ball-shaped retentive anchors. Patients rated their general satisfaction and other features of their prostheses, together with their ability to eat certain food items, on 100-mm visual analogue scales before assignment, and after 2 and 6 months. RESULTS: Both treatment groups reported greater satisfaction with their new prostheses at 6 months. General satisfaction ratings were higher in the implant group than in the conventional denture group by approximately 36% (mean difference 22.3 mm). The implant group also rated comfort (mean difference 22.4 mm), stability (mean difference 28.5 mm), and ability to chew (mean difference 17.3 mm) significantly higher. Significantly higher scores were also given by the implant group for their ability to chew certain hard foods. A trend for an increase in the differences between the groups, in favor of the implant group, was observed between the 2- and 6-month recalls, although the increase was only significant for ease of cleaning. The primary influence on general satisfaction 6 months after the delivery of the prostheses was the provision of the two-implant overdenture. CONCLUSION: Edentulous seniors who received mandibular implant overdentures opposing a conventional denture rated their general satisfaction approximately 36% higher than did a comparable group provided with new conventional dentures.

Aged↗
PubMed1992

[The microbial colonization of implant elements made of plastics and titanium].

12 edentate subjects wearing lower complete dentures stabilized by an IMZ-implant-supported Dolder bar took part in the experiment. Elastic (POM) and titanium connection parts were alternatingly inserted. After the removal of 24 POM and titanium elements from each of the patients, a qualitative analysis of the microbial flora was performed. Except for actinomycetes, aerobic as well as anaerobic microorganisms were found less frequently with titanium than with POM elements.

Actinomycetales↗
PubMedDate not supplied

Comparisons of chewing difficulty of consumed foods with mandibular conventional dentures and implant-supported overdentures in diabetic denture wearers.

PURPOSE: This study compared the chewing difficulty of foods in diets of denture wearers with mandibular conventional and implant-supported overdentures. MATERIALS AND METHODS: One-week dietary logs were evaluated for 58 subjects with controlled diabetes at baseline with their original dentures and with new dentures 6 months after treatment completion. Subjects received new maxillary and mandibular complete dentures, 21 with mandibular conventional dentures and 37 with implant-supported overdentures. A 10-point chewing difficulty rating scale (10 for most difficult-to-chew foods) was used to rate food items in the dietary logs. RESULTS: ANOVA showed no differences between the chewing difficulty mean scores for all foods consumed either at baseline or posttreatment for the two groups. However, the mean scores for the combined consumption frequency of difficult-to-chew foods (6 to 10) showed a significant decrease following treatment with both types of dentures. This decline did not differ significantly between the denture types. With original dentures, more than 91% of subjects consumed foods with chewing difficulty scores of 6 to 10 at least seven times per week. With study dentures, only 21% maintained this level of consumption, with the frequency decreasing to four to six times per week in 24% and one to three times per week in 43% of subjects. The declines in consumption frequency of more difficult to chew foods with study dentures were in a higher percentage of subjects in the implant than in the conventional group. CONCLUSION: After 7 months of adaptation to new dentures, patients consumed fewer difficult-to-chew foods than with their original dentures. This decline was more frequent with mandibular implant-supported overdentures than with conventional dentures. Dietary counseling should be considered as part of implant and complete denture therapy.

Adaptation, Physiological↗
PubMedDate not supplied

Effect of resilient liners on masticatory muscle activity of edentulous patients: clinical and electromyography studies.

This investigation evaluated how the soft lining of both maxillary and mandibular complete dentures influences the activity of the masseter and temporalis muscles. Electromyography was used to determine changes in muscle activity. The findings, expressed by Root Mean Square values, indicated an increase in muscle activity after insertion of dentures and prior to application of soft lining material. These activities decreased gradually throughout the 12-week evaluation period following the application of soft liner. Significant differences were noted between masseter and temporalis muscle activity during mastication of different types of food.

Analysis of Variance↗