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At least 361 records · Page 20Linked to original sources
PubMed1980

Clinical evaluation of swinglock removable partial dentures.

Fifty-three patients were recalled for clinical examination to determine oral changes which occurred during the time that they wore swinglock removable partial dentures. Pertinent findings were as follows: 1. The swinglock removable partial denture should be considered as a treatment alternative for patients with unfavorable periodontal support and for patients missing key abutments. 2. Patients who have worn swinglock removable partial dentures for periods of 13 to 75 months did not demonstrate a continued periodontal breakdown, even when there was unfavorable periodontal support. 3. The swinglock removable partial denture may aid in reducing tooth mobility when the patient can maintain good levels of oral hygiene to control inflammation and the dentist can provide a proper occlusion. 4. As evidenced by responses to a satisfaction questionnaire, patient acceptance of the swinglock design was good. 5. The high prevalence of patients reporting for recall examination with one or more decayed teeth (22.4%) and removable partial dentures requiring relines (28.3%) emphasizes the need for proper recall of patients. 6. The swinglock removable partial denture will function satisfactorily if the dentist follows basic principles of removable partial denture construction and if the patient maintains a good level of oral hygiene and returns for regular recall visits.

Bone Resorption↗
PubMed2006

A novel use of a unilateral hinged partial denture.

This report describes a unilateral removable partial denture with a hinged arm with magnetic retention and a prosthetic flange component that was provided for a patient with localised periodontal tissue loss. While a unilateral partial denture is not generally advocated because of the risk of swallowing or aspiration, this case illustrates the effective use of such a design.

Adult↗
PubMedDate not supplied

Review of the Swinglock removable partial denture.

The author's experience with the swinglock removable partial denture concept is described. This infrequently utilized technique allows the use of undercuts that are unapproachable with other partial denture designs. Indications include missing or weakened key abutment teeth, tooth mobility, aesthetics, economic considerations, and the presence of certain ablative defects following oncologic surgery. The clinician must consider lip position, facial sulcus depth, position of frena, and the periodontal health of potential abutment teeth when considering a swinglock removable partial denture. Specific instructions for blockout, relief, and position of hinge and clasp assemblies should be part of the written laboratory instructions.

Denture, Partial, Removable↗
PubMed1993

Fabricating crowns to fit existing removable partial dentures: an illustration of two techniques.

The prosthetic treatment of a structurally compromised abutment tooth supporting a removable partial denture may present a variety of restorative modalities. Ideally, a surveyed crown is made for the individual tooth, which is later followed by a new removable partial denture fit to the contours of the crown. Frequently, however, the removable partial denture is clinically acceptable, and remaking the prosthesis is not indicated. In these cases, the crown can be made to fit the existing removable partial denture. Fabricating crowns to fit existing removable partial dentures can be accomplished using a direct method, an indirect method, or combinations of these techniques. Direct techniques traditionally use acrylic resin and inlay wax intraorally to develop a custom pattern that captures the contours of the clasp assembly. Indirect techniques use a pick-up impression to allow the crown pattern to be waxed against the denture framework on a cast in the laboratory. Combination methods use either a direct-indirect or indirect-direct approach. The direct-indirect method develops the preliminary resin pattern directly on the tooth and finalizes the contours in wax on a master cast. The indirect-direct technique initiates a crown pattern on a die and completes it either intraorally or on the die after the intraoral refinements. This article reviews the literature for methods of fabricating surveyed crowns under existing removable partial dentures. Additionally, two cases are presented that illustrate an indirect and combination direct-indirect technique for making the restorations.

Bicuspid↗
PubMed1994

Fabrication of a fixed partial denture in the Class II partial edentulous mandible using the UCLA abutment: a clinical report.

Several methods are currently available to restore the partially edentulous patient with osseointegrated implants. The UCLA abutment eliminates the unesthetic, traditional transmucosal abutment and can provide esthetic crowns, fixed prostheses, and subgingival porcelain margins without the need for excessive instrumentation and components. A clinical report for the fabrication of a direct, implant-borne fixed prosthesis using the UCLA abutment is presented.

Aged↗
PubMed1998

An esthetically attractive twin-flex clasp for removable partial dentures.

The cosmetic appearance of a removable partial denture is of great importance to both the patient and the dentist. Traditional facial clasp arms are usually unsightly. Other options are expensive and/or technically difficult, and may require time-consuming maintenance. Furthermore, when these clasps are broken, replacement of the entire removable partial denture may be required. This article describes a procedure for making a simple but effective twin-flex clasp. The clasp has excellent esthetics and can be readily adjusted or replaced.

Dental Clasps↗
PubMed2004

Thirteen-year follow-up study of resin-bonded fixed partial dentures.

OBJECTIVE: The technique of resin-bonded fixed partial dentures (RBFPD) is a well-accepted clinical technique to replace missing teeth. The survival rates reported in the literature vary widely, and the conclusions are sometimes conflicting. This study presents the clinical long-term performance of silicoated RBFPDs and also determines the main cause of failure. METHOD AND MATERIALS: Sixty-one patients with a total of 74 RBFPDs were either examined or requested to complete a questionnaire regarding their fixed partial dentures. Sixty-four were placed in the anterior region, and 10 in the posterior region. No more than one missing tooth in the posterior area and two missing teeth in the anterior region were replaced with RBFPDs. A retentive preparation was made on the abutment teeth. All the RBFPDs were adhesively seated. RESULTS: Eighteen RBFPDs failed after a mean observation time of 7.8 years (nine retention losses of one or more retainers, six carious lesions, and three veneer fractures occurred). Seven RBFPDs were rebonded, whereas the remaining 11 failures had to be replaced with conventional FPDs. Fifty-six RBFPDs were primary restorations, and seven secondary RBFPDs were used after the loss of the primary restoration. A mean survival rate better than 69% after a 13-year observation period was calculated. Including the rebonded restorations, a mean functional survival rate of 83% was estimated. A total of 18 failures (24.3%) of all restorations were observed, the main cause being loss of retention. CONCLUSION: Silicoated RBFPDs are a viable treatment means with an acceptable success expectancy.

Adolescent↗
PubMed1985

Custom-made denture teeth and denture base material for removable partial dentures.

A method that uses Isosit material to fabricate custom-made denture teeth and denture base has been described. The advantages of this technique are the denture teeth can be made to function in harmony with dynamics of the stomatognathic system; any type of occlusal scheme can be used; the material is esthetically pleasing; it can be characterized; it can be used as a denture base material, which can also be characterized; it can be repaired, relined, or rebased with little difficulty; and laboratory procedures can be accomplished in the dental office or laboratory.

Acrylic Resins↗
PubMed2004

Influence of loading positions of mandibular unilateral distal extension removable partial dentures on movements of abutment tooth and denture base.

PURPOSE: The aim of our study was to explore the effects of different loading positions on the movements of the abutment tooth and denture base of removable partial denture with unilaterally designed framework (RPD-U). MATERIALS AND METHODS: The experiment was carried out with a simulation model of a mandible without left molars. The movements of abutment tooth and denture base of the unilateral and bilateral designs were due to 30N vertical load on 12 loading positions determined with a strain gauge circuitry. The effects of loading positions on the movements of the abutment tooth and denture base were compared between two designs. RESULTS: During the loading on buccal, lingual positions, and the most disto-central position the movements of the abutment tooth and denture base of the unilateral design were significantly greater than those of the bilateral design (P < 0.01). During the loading on the three mesio-central positions the movements of the abutment tooth and denture base were equal between designs, and were significantly lower than during the loading on the other positions (P < 0.01). CONCLUSION: Ending the denture teeth at the mesial cusp of second molar and positioning the occlusal contacts over the ridge crest adequately stabilize the abutment tooth and denture base of RPD-U.

Acrylic Resins↗
PubMed1994

The construction of crowns for removable partial denture abutment teeth.

The construction of crowns for teeth that will serve as abutment teeth for removable partial dentures is an important and technically demanding procedure. The preparation of the tooth itself must include provision for the components and path of placement of the removable partial denture and at the same time conform to all the parameters associated with proper tooth preparation. Some of the factors unique to surveyed crowns that must be considered include the position of the tooth in relation to the proposed occlusal plane with the removable partial denture, the type of facial and lingual tooth contours desired for the direct retainer, the size and suitability of existing restorations, and the proposed path of placement and removal of the removable partial denture relative to the orientation of the abutment tooth as well as to other adjacent teeth if the abutment also is to be used as a fixed partial denture retainer. The design requirements for the removable partial denture must be determined before treatment is initiated, to account for all of these factors.

Crowns↗
PubMed1981

A clinical study of the periodontal status of abutment teeth supporting swinglock removable partial dentures--a pilot study.

Eleven patients wearing mandibular swinglock bilateral distal extension removable partial dentures opposing maxillary complete dentures were studied for a period up to 2 years. They had moderate to advanced periodontal disease with retrograde mobility patterns. Periodontal therapy, as well as treatment of dental carious lesions, was completed before fabrication of the prosthesis. Recordings of the gingival status, pocket depth, plaque score, tooth mobility, and dental caries were made at the time of the placement of the prosthesis and thereafter at 6-month intervals. Final results were obtained at the end of 2 years in six patients (group A) and at 1 1/2 years in five patients (group B). Our findings show that both groups had a statistically significant increase in gingival inflammation. However, no differences in degree of inflammation were observed between the two groups with regard to the status of gingival tissues that were covered and uncovered by the components of the swinglock removable partial denture. Also, no statistically significant differences in pocket depths and plaque scores were found between the time of placement of the swinglock removable partial denture and the final recall visit. Of the 61 abutment teeth, 85.2% had no significant change in mobility, 11.5% showed a substantial decrease in mobility, and 3.3% showed a considerable increase in mobility. The patients were able to successfully wear the swinglock removable partial denture without clinically significant changes in the supporting structures of the abutment teeth. This report is part of an ongoing study to determine the efficacy of swinglock removable partial dentures.

Adult↗
PubMed2003

Evaluation of articulation of Turkish phonemes after removable partial denture application.

In this study, the adaptation of patients to removable partial dentures was evaluated related to articulation of Turkish phonemes. Articulation of /t,d.n,l,r/, /g,k/, /b,p,m/ and /s,z,ş,v,f,y,j,h,c/ phonemes were evaluated by three speech pathologists, on records taken from 15 patients before the insertion of a removable partial denture, just after insertion, and one week later. The test consisted of evaluation of phoneme articulation of independent syllables in terms of distortion, omission, substitution, mass effect, hypernasality and hyponasality. Data were evaluated with Cochrane Q. McNemar and Kruskal-Wallis tests. The results showed that for some phonemes, problems in articulation occurred after the insertion of a removable partial denture while for others a significant amelioration was observed after the insertion of a removable partial denture. In general, problems in articulation of evaluated phonemes were resolved after one week of use.

Adult↗