Swinglock Removable Partial Denture Research Articles

A swinglock removable partial denture aid for physically impaired individuals

The swinglock removable partial denture (RPD) is an invaluable aid for some treatment planning dilemmas. Indications for swinglock RPDs include the use of undercuts not possible with other partial denture designs, the use and stabilization of weakened key abutment teeth, reduction of tooth mobility, prosthetic elimination of periodontal esthetic defects, and the ability to restore at least partial function for some patients undergoing ablative oncology surgery. While this is an effective treatment modality when indicated, there are a small number of patients who lack the ability to manipulate the latch mechanism, usually due to age or medical conditions. In some very rare situations, both the patient and caretaker lack this ability. The authors recently encountered this scenario, and the solution was to devise a swinglock aid to help an elderly couple cope with this prescribed design. This modification of a design proposed by LaBell and Glassman offers portability, concealment, and elimination of the potentially hazardous open loop.

Prosthodontic rehabilitation with a swing-lock removable partial denture and a single osseointegrated implant: A clinical report

This article details the use of a swing-lock removable partial denture and single osseointegrated dental implant in the prosthodontic rehabilitation of a partially dentate patient. Used together, these treatment options solved a difficult clinical problem with a satisfactory outcome. (J Prosthet Dent 2002;88:128-31.)

The Swing-Lock Removable Partial Denture

The swing-lock removable partial denture is a good treatment alternative for maxillofacial prosthodontics, periodontally compromised dentitions and where some conventional designs for removable partial dentures cannot be applied. This paper presents clinical applications of the SLRPD. Indications, contraindications, advantages and disadvantages are discussed.

The split-post lock: An alternative lock for hinge clasps and swing-lock removable partial dentures

When the locking component of a prosthesis loses its effectiveness, the solution has been to replace the component. This article describes a procedure for the production of a split-post lock. This lock can be used as an alternative in the construction of custom-made hinge clasps or for swing-lock dentures. If a loss or reduction in lock strength occurs through wear of components, then this split-post lock can be reactivated. A procedure in which this lock can be used to replace a worn swing-lock latch is also described. (J Prosthet Dent 1997;77:332-4.)

The modified swing-lock: A new approach

The swing-lock removable partial denture (RPD) can address some specific partially edentulous situations better than conventional partial denture designs. The concept is recommended for maximizing stability and retention by access to more tooth surfaces and undercuts with the unique clasping mechanism offered by the incorporation of lock, hinge, and gate assemblies. Since its introduction, the swing-lock RPD has gained some degree of acceptance. However, it is infrequently used by clinicians because it is technique-sensitive, especially during hinge and lock fabrication, and the durability of the retentive element of the locking mechanism decreases with the progressive wear of the metal latch attachment. This article presents a new design for a swing-lock RPD by use of a vertical bar and plastic clip attachment as an alternative to the hinge and latch attachment. The suggested modification in the locking mechanism may overcome some of the problems associated with the conventional swing-lock RPD.

Swinglock removable partial denture and biting forces in partially edentulous patients. Comparison of individual biting forces with and without swinglock removable partial denture.

Several studies have shown that swinglock removable partial dentures are effective for stability of the abutment teeth and the surrounding tissues including alveolar bone. This efficacy has been thought to be due to the dynamic structure of the swinglock attachment. Individual biting force was measured to determine the physiological efficacy of teeth splints by use of the attachment. The results showed that individual biting forces with the swinglock removable partial denture were 10-25% higher than those without the denture. Furthermore, statistical analysis showed that the individual biting forces with the swinglock removable partial denture were significantly higher. The swinglock attachment can stabilize partially edentulous dentition by splinting all residual teeth. In addition, when physical forces are applied to the abutment teeth and the artificial teeth, this attachment can deliver and distribute the stress to the other abutment teeth and alveolar mucosa. The present findings suggest that the swinglock attachment augments the ability to withstand physical forces such as those occurring during biting and mastication.

Polyvinyl siloxane facilitates flasking and deflasking of removable partial dentures with swing-locks

Polyvinyl siloxane is useful in protecting the locking mechanism of a swing-lock removable partial denture, making the flasking and deflasking much easier. Polyvinyl siloxane is stiff enough that acrylic resin can be packed against it and easily removed after the partial denture has been deflasked.

A three-year study of the periodontal health status of teeth supporting swing-lock removable partial dentures

A three-year study of the periodontal health status of teeth supporting swing-lock removable partial dentures

A three-year study of the periodontal health status of teeth supporting swing-lock removable partial dentures

A three-year study of the periodontal health status of teeth supporting swing-lock removable partial dentures

Designing swinglock partial dentures

The basic design principles of swinglock removable partial dentures including (1) even stress distribution, (2) control of rotational forces, (3) absence of D-E hinges, (4) rests, and (5) placement of the labial retentive fingers have been discussed. Special instructions to swinglock removable partial denture patients and recommendations for maintenance of the swinglock removable partial denture have been emphasized.

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 1/12 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.

Swinglock removable partial dentures: Where and when

The where and when of swinglock removable partial denture treatment planning have been presented, including indications, contraindications, and advantages. While the principles asserted in this article do not represent a panacea to partial denture design, the swinglock design concept does provide another treatment alternative for select and difficult biomechanic situations.

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.

A longitudinal study of the periodontal status of abutment teeth supporting swing-lock removable partial dentures

A longitudinal study of the periodontal status of abutment teeth supporting swing-lock removable partial dentures

The swing-lock partial denture: An approach to conventional removable partial denture service

There are many common problems associated with the use of conventional clasp removable partial dentures. An alternative modality in many instances is the swing-lock removable partial denture. Its advantages, disadvantages, indications, and contraindications are discussed. The procedures of fabrication, placement, and adjustments are described.