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At least 901 records · Page 50Linked to original sources
PubMed1976

Stresses created by occlusal prematurities in a new photoelastic model system.

A new photoelastic model system incorporating a simulated periodontal ligament sleeve around an experimental first molar has been developed. The system was used to visualize internal compressive stresses created by various premature occlusal incline relationships in both buccolingual and mesiodistal dimensions. When prematurities were applied singly and observed buccolingually, both class 1 and and class 2 prematurities produced stresses along the lingual aspect of the root, whereas the class 3 prematurity produced stresses along the buccal aspect of the root. When viewed buccolingually, combinations of class 1 and class 2 prematurities resulted in stresses along the lingual aspect of the root. The stress pattern was similar to those created by the single class 1 or class 2 prematurities. A combination of class 2 and class 3 prematurities did not produce a well-defined indication of stress distribution. There was slightly more stress along the buccal aspect of the root. Comparison of this combination with individual class 2 and class 3 prematurities indicates that such a combination tended to diminish tipping of the tooth in any one direction. A combination of class 1 and class 3 prematurities showed slightly greater stress along the buccal aspect of the root surface. Again, the combination produced less tipping of the tooth in any one direction when compared with tipping caused by the individual prematurities. When all three prematurities were tested at the same time, the stress pattern was almost coincident with that achieved in the absence of prematurities. When prematurities were observed mesiodistally, the location of stresses was dependent on the mesial or distal placement of the prematurity, irrespective of its position buccolingually.

Dental Occlusion, Traumatic↗
PubMed1976

Comparison of posterior teeth.

Patients compared the mechanical efficiency of certain types of posterior teeth. Patients, allowed to choose the denture that was most comfortable and the most stable, and that performed the best, all selected the nonanatomic tooth form. Women selected the dentures with the flat occlusal posterior teeth and men preferred the posterior teeth with metal inserts. On the basis of this small sampling of patients treated with anatomic and nonanatomic posterior teeth, I suggest that favorable results would be obtained if nonanatomical teeth were used to construct dentures for all age groups. If, in addition to good function, we can provide an esthetically pleasing,nonanatomic type posterior tooth, we will have achieved our goal in the construction of fine dentures.

Adult↗
PubMed1978

Composite resins bonded to porcelain with silane solution.

A system of bonding composite resins to dental porcelain with silane solution produced a reliable bond. The introduction of stresses, particularly thermal and functional, needs to be investigated further and tested clinically. This technique is now being investigated clinically in a number of porcelain-fused-to-gold restorations. It could be an effective method of intraoral repair of fractured or chipped porcelain restorations.

Composite Resins↗
PubMed1980

Ingestion of partial denture.

A partial denture was swallowed by an elderly, mentally incompetent patient. Dentists must be aware of the problems encountered in the treatment of such patients and the need to increase dental service to these patients beyond the office setting.

Airway Obstruction↗
PubMed1980

The telescoped overdenture: advantages and limitations.

A case is reported in which the telescoped overdenture was chosen instead of conventional techniques in treatment of a patient's maxillary teeth. The advantages and disadvantages of this technique are discussed.

Acrylic Resins↗
PubMed1982

Clinical evaluation of the wax trial denture.

A complete denture is a mechanical object, much of which is fabricated outside the dental operatory. Its specific fabrication, however, is dictated by clinical facts, as outlined in instructions provided by the dentist. This mechanical object must function in a biologic atmosphere, and every effort must be made to assure a harmonious relationship between the mechanical and the biologic. The wax trial denture stage becomes a critical phase of complete denture care in evaluating this relationship. The wax trial denture should be evaluated relative to trial base stability, vertical dimension, centric and protrusive jaw relationships, tooth selection, the level of the occlusal plane, buccolingual and anteroposterior tooth position, and occlusal articulation. Although all of these factors should be further evaluated at the denture insertion stage as well as at each recall visit, only at the wax trial denture stage can significant changes be easily accomplished. The wax trial denture evaluation should receive adequate consideration in any complete denture technique.

Dental Occlusion, Balanced↗
PubMed1984

The undesirable effects of various changes of monoplane occlusion on complete denture retention.

The most commonly seen undesirable alterations to the occlusal plane, when using monoplane occlusion with nonanatomic teeth, have been outlined verbally and graphically. The introduction of dislodging forces to denture retention brought about by these variations in the monoplane have been examined, as well as methods for their correction. The order of presentation of undesirable alterations to the occlusal plane is a guide for a step-by-step correction of these changes. It provides the practitioner with a sequential checklist for correcting undesirable occlusal changes in monoplane denture occlusion with nonanatomic teeth.

Dental Occlusion, Balanced↗
PubMed1985

The continued in vivo evaluation of the wear of restorative resins.

This study reports on the 3-year results of a method designed to measure the in vivo wear rates of resin systems in denture teeth. Adaptic and Profile showed the most amounts of wear, followed by Finesse, Miradapt, and Isopast. The least amounts of wear were seen with Isosit and Silar. The similarity to the magnitudes of wear reported in other studies suggests the appropriateness of using this technique.

Acrylic Resins↗
PubMed1985

Preservation of the alveolar ridge with hydroxylapatite tooth root substitutes.

A total of 49 patients, who were followed for 3 to 31 months, have had 92 hydroxylapatite root implants placed in fresh extraction sockets without soft tissue closure. Hydroxylapatite root implants maintain approximately twice as much alveolar bone as the contralateral control sites without implants. It is believed that this method is a more effective and efficient procedure to preserve alveolar bone for retention of dentures than previously described procedures.

Alveolar Process↗
PubMed1990

Dental implants used for periodontal patients.

For those performing implant treatment, continued research and reports of long-term successful results are essential to evaluating the validity of implants, especially when variables such as design and surface treatment are introduced. The dental profession has enthusiastically embraced the clinical results of implant treatment and its benefits to the patient. However, just as patients who undergo periodontal and restorative treatment must continue a regular long-term routine of maintenance therapy to ensure their dental health, so must those patients who receive dental implants. Both the periodontist who places the implants and the dentist who fabricates the prosthetic replacement must work cooperatively to deliver a healthy restoration that will function for many years.

Dental Implantation, Endosseous↗