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At least 55 records · Page 3Linked to original sources
PubMed1989

[Horizontal stress of abutment. Particularly regarding difference in removable partial denture design].

Prosthesis with removable partial denture is a daily clinical procedure for compensating the morphological loss and hypofunction of teeth and various gnathostomatic system. The removable partial denture not only comprises of many elements such as denture base, abutment and clasp but accordingly has to undergo morphologically complicated operative process, thus posing many factors concerning the functional stability coping with diverse masticatory motions. However, from the fact that retention and stability of the denture at it's functioning are obtained basically from it's connection with abutment, assessments in multiple aspects have been made regarding the influence exerted on abutment by difference in the structural elements, i. e. clasps, which transmit the movement of denture directly. There were the assessments by means of the displacement, measuring system by the use of microdial gage, stereoscopic camera, eddy currents transfer, and magnetic resistant element, and deformation measuring systems such as photoelasticity method, holography, moiré method and strain gage method. However, these systems are the methods for assessing abutment as subject but not the assessing system including all the basic structural elements of denture. Therefore, the author has made observation of the influence exerted on the dynamics of abutment by the difference between clasps in 2 kinds and by cross arch stabilization by designing aker's clasp and RPI clasp for the abutment by the use of cast frame standardized.(ABSTRACT TRUNCATED AT 250 WORDS)

Dental Abutments↗
PubMed1975

Studies of biologic parameters for denture design. Part I. Comparison of masseter muscle activity during chewing of crisp and soggy wafers in denture and dentition groups.

The motor response to two textures was studied by comparing the EMG activities of the ipsilateral muscle during 5 minute periods of eating crisp and soggy wafers in each group of subjects. In both groups, the activity of the ipsilateral muscle was significantly greater for eating crisp wafers than for eating soggy wafers. The ratio of EMG activities for crisp and soggy textures was 1.48 in the dentition group and 1.72 for the denture wearers. These differences between the activities of ipsilateral muscles for the two textures were significant in both groups (P smaller than 0.05). Thus, in terms of muscle effort, denture wearers display discrimination of textural characteristics of food during chewing similar to that shown by subjects with natural teeth.

Adult↗
PubMed1990

[Clinical indications for acrylic partial denture design].

The article deals with the planning of different acrylic dentures, i.e. immediate and temporary denture, transitional denture and overdenture as definitive oral rehabilitation. A case where on a single molar a telescope crown and an Ipsoclip anchor were used is described. By an Ipsoclip anchor an additional retention was provided. To achieve a successful treatment with an acrylic partial denture the use of a surveryer is obligatory. Besides that, instead of wire made, elements for support and stabilization cast of semiprecious and non-precious alloys also give much better results.

Acrylic Resins↗
PubMed1997

Effectiveness of computer-aided removable partial denture design.

PURPOSE: Computer programs have been developed for removable partial denture (RPD) design, but their educational impact has never been investigated. This study measured the effectiveness of computer-based RPD design simulations in a traditional RPD design course for second-year dental students. MATERIALS AND METHODS: Thirty-six students were randomly assigned to four groups, two simulation and two control groups, at the beginning of the RPD design module. A cross-over design compared the two strategies during laboratory exercises. First, the simulation group worked with the simulation, while the control group met in small-group seminars with faculty. Post-test 1 was given, and then students switched teaching methods and post-test 2 was given. Each post-test had two parts. Part 1 involved designing an RPD based on specific patient criteria. Part 2 involved choosing the more correct of the two designs. RESULTS: Results showed a significant difference (p = .0072) in two of four test groups. Although it was an initial evaluation, the computer simulation was shown to be equivalent to faculty-led small-group seminars. Students also responded positively to a questionnaire on their perceived effectiveness of the simulations. CONCLUSIONS: The results suggest that RPD design can be taught as effectively with computer-based simulations as with faculty-led seminars.

Computer-Aided Design↗
PubMed2004

Removable partial denture design involving teeth and implants as an alternative to unsuccessful fixed implant therapy: a case report.

Various dental implants have been used, and high success rates have been reported. However, as their uses increase, implant failures have been reported. There are partially edentulous patients with an initial treatment plan of an implant-supported fixed partial denture. At times, one or more strategic implants fail to osseointegrate. In situations where financial, systemic, or local conditions preclude the use of a fixed partial denture, a well constructed removable partial denture can be an excellent treatment alternative. It has been reported that prosthesis support can be improved with the use of osseointegrated dental implants, with improved preservation and maintenance of existing hard and soft tissues around dental implants. This article describes the prosthodontic rehabilitation of a partially edentulous patient by the use of a removable partial denture design involving teeth and implants as an alternative to unsuccessful fixed implant therapy. This treatment option solved a difficult clinical problem derived from the failure of two strategic implants and provided the patient with an esthetic and functional prosthesis.

Aged↗