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At least 217 records · Page 12Linked to original sources
PubMed1992

[Special considerations relating to class 1 and class 2 removable partial dentures in the mandible].

During the rehabilitation of partially edentulous patients, dentists must try to preserve the health of the remaining oral structures. That is why it is essential to make maximum use of the support areas. With removable class 1 and 2 prostheses (Kennedy-Applegate classification), the remaining teeth and the edentulous areas provide support. While virtually no movement from the teeth is noticeable, the tissues covering the edentulous ridges do move in a variable manner. A unit must therefore be designed and built to protect the remaining teeth as well as the residual ridges. The problem is all the more acute for the mandible, since the compressibility of the tissues of the edentulous ridges and remodeling of the bone are greater. Many approaches and techniques have been described in the dental literature: functional impressions, use of appropriate direct retainers, and relining of units, if necessary.

Alveolar Bone Loss↗
PubMed1992

[Clinical characteristics affecting the need for relining of class 1 and class 2 removable mandibular prostheses].

This study attempts to identify, from a sample of people wearing a class 1 or 2 removable prosthetic device on the lower jaw, the extent of the relining needs for these prostheses and their determining factors. Epidemiological methods were used to solve this problem. The relining needs increase with the amount of time elapsed since the prosthetic device was put in the mouth (p = 0.014). As for the other factors reviewed, i.e. class of device, type of retainers used, and occlusion, the authors have identified trends instead of real risk factors, since the impact of this study was significantly reduced due to the small number of people we were able to recruit. It was not always possible, therefore, to verify the statistical meaning of the associations observed. In clinical practice, the treatment plan should include a periodical evaluation of the relining needs. As it is now impossible to establish the approximate time when a prosthetic device may need relining, patients wearing one should be examined periodically and regularly.

Adult↗
PubMed1992

The copy denture technique.

The copy denture technique facilitates the replication of the good feature of existing dentures. Assessment of the existing dentures provides essential information for diagnosis and treatment planning. Copy templates are made which exhibit those features of the existing dentures which are satisfactory and are to be reproduced in the new dentures, while facilitating controlled and predictable modification of undesirable features. All impressions and occlusal registrations are obtained with the aid of the templates which then provide stable trial bases. The patient may adapt to the new dentures quicker because of the reproduction of familiar features.

Dental Articulators↗
PubMedDate not supplied

Treatment of a patient with cleidocranial dysplasia using osseointegrated implants: a patient report.

This patient report describes the treatment of a 42-year-old woman with cleidocranial dysplasia. Endosseous implants were used to restore the mandibular and maxillary arches with fixed prostheses. Six implants were placed in the mandible and immediately loaded with an acrylic resin fixed prosthesis. In the maxillary arch, 10 implants were submerged for 4 months prior to functional loading. A transitional denture was relined and placed in the maxilla 10 days after implant placement. Three months later, a definitive mandibular prosthesis was fabricated. The definitive maxillary restoration was delivered 6 months after surgery. The most recent follow-up, 6 months after delivery, confirmed a satisfactory treatment result to date.

Adult↗
PubMed2005

Effect of direct relining on stresses at the denture base and the metal frame of removable partial dentures.

The Kennedy Class I removable partial denture (RPD) can cause stress to supporting hard and soft tissues and may lead to harmful effects. The purpose of this study is to investigate the pattern of these stresses in three different positions before and following a relining procedure. Ten patients, five males and five females, with a lower distal extension RPD and an opposing upper class III type RPD were selected for this study. Strain gauges together with a strain gauge indicator were used to study the pattern of stresses in three selected positions. Some changes were significantly different at the site of the denture base and at the metal frame near the direct retainer. After relining, the stresses were shared partially by the abutments and partially by the tissues. Maximum stresses were reported during swallowing. No significant difference was noticed between males and females.

Adult↗
PubMedDate not supplied

Mandibular implant-retained overdentures with 2 different prosthetic designs: a retrospective pilot study on maintenance interventions.

This retrospective study aimed to investigate whether a mandibular implant-retained overdenture designed to counteract the rotation of the denture might influence the clinical outcome, as evaluated through the prosthetic maintenance interventions. The amount of repairs and relines of the mandibular and maxillary dentures required in an experimental group (6 patients wearing an implant-retained overdenture with a metal frame counteracting the rotation) and a control group (6 patients wearing an implant-retained overdenture allowing the rotation) was compared. Both mandibular and maxillary dentures needed few repairs or relines. The 2 types of dentures showed a similar number of maintenance interventions.

Dental Alloys↗
PubMed1991

Microwave processing of permanent soft denture liners.

This article describes a technique of processing a resilient soft denture liner using microwave irradiation. The technique employs a specially designed flask that can be heated in a microwave oven. The flask can be either fabricated using commonly available dental laboratory materials or purchased commercially. The microwave polymerization of the resilient soft denture liner reduces the potential warpage of the denture base that can occur during the conventional process of boiling in water for 2 hours. Additionally, microwave irradiation reduces processing time to less than 1 hour, allowing the dentist the opportunity to reline a patient's denture in a single visit. The technique is simple and requires no extensive or elaborate dental laboratory equipment.

Denture Liners↗
PubMedDate not supplied

[4 methods for primary impressions in complete removable dentures].

First necessary step to realize full denture prosthesis, primary impression can be made by different ways. Plaster and alginate, easy to use and often employed remain references technics. Several viscosities silicones allow real prefunctional registrations. Delayed setting resins give precise physiological limits to first impressions.

Alginates↗
PubMed1990

[Cases of prosthodontic tissue reconditioning in geriatric dentistry].

In elderly patients, recurrent fractures of the lower denture must raise the question of a neurological deficit as cause of the occluso-prosthetic imbalance. Hypotonicity of the peri-oral mastication musculature, especially the masseters, may explain the alteration of the prosthetic supporting surface due to shriveling of the mandibular arch, along with an osseogenesis at the point of flexion of the mandible. The rest and activity muscular imbalance, resulting from unilateral mastication, may cause lingual dysfunction and deviation of the tongue at rest. If this problem is not controlled within an acceptable period of time, one should expect psychological, biological and physiological consequences affecting the patient's physical condition. The restoration of the denture fracture is insufficient. Reconditioning must be performed in order to replace the existing prosthesis in the patient's function, allowing him/her to recover a normal psychological, biological and physiological balance. In conclusion, in geriatric dentistry, the objective of reconditioning is, not only to restore a functional occlusion, but also the psychological, biological and physiological balance of the patient. This is an unvaluable advantage, especially if this contributes to maintain or restore an often precarious health.

Aged↗
PubMed1990

[Methods and materials for the construction of complete dentures].

In a survey the methods and materials used for making complete dentures were collected from 603 dentists. The impression material most frequently used for primary impressions was alginate and elastic impression material for functional impressions. Compared with an earlier survey the percentage of dentist using needle point tracing for recording jaw relations increased from 6 to 40%. Remounting complete dentures was done by 64% of the dentists whenever required; 9% applied this method as a routine.

Alginates↗