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Results for “DENTAL RESTORATION, TEMPORARY”

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At least 361 records · Page 20Linked to original sources
PubMed2003

[Clinical evaluation of two temporary restoration materials: Composite and self-cured acrylic resin].

OBJECTIVE: The purpose of this study was to compare the clinical application and effect of two temporary restorations materials: composite and self-cured acrylic resin. METHODS: 153 composite temporary crowns (and bridges) placed in 44 patients and 144 self-cured acrylic resin temporary crowns (and bridges) placed in 49 patients were evaluated according to the California Dental Association's (CDA) criteria and questionnaire. RESULTS: It showed that composite temporary crowns (and bridges) had better surface smoothness, marginal integrity and anatomic form than self-cured acrylic resin temporary crowns (and bridges). In the 49 patients with self-cured acrylic resin temporary crowns (and bridges), 67% and 88% of them complained of food impaction and mouth odor, while only 2% and 30% in the 44 patients with composite temporary crowns (and bridges) had the same complaint. CONCLUSION: Between the two temporary restoration materials, composite is better than self-cured acrylic resin.

Acrylic Resins↗
PubMed1975

Dimensional stability of temporary restoratives.

The effects of thermal cycling on the dimensional stability of temporary restoratives were studied. Stability appeared to be affected significantly by water content. On thermal cycling, Cavit showed less linear dimensional change than two cements containing zinc oxide-eugenol and gutta-percha temporary stopping.

Dental Restoration, Temporary↗
PubMed1999

Effects of occlusal loading and thermocycling on the marginal gaps of light-polymerized and autopolymerized resin provisional crowns.

STATEMENT OF PROBLEM: Resin crowns appear to be increasingly at risk for increases in marginal gap size as a result of thermocycling and occlusal loading. PURPOSE: This in vitro study compared the effects of occlusal loading and thermocycling on the margins of provisional crowns made from a conventional autopolymerized provisional acrylic resin (Jet) to those made from a light-polymerized resin (Unifast LC). METHODS AND MATERIAL: Crowns made from the 2 materials were thermocycled and loaded on custom dies to simulate 6 to 8 weeks of oral function. Gap sizes were measured before and after thermocycling and occlusal loading. RESULTS: Provisional crowns made from light-polymerized resin exhibited smaller changes in marginal gap size than did those made from conventional autopolymerized resin. CONCLUSIONS: The improved characteristics of the light-polymerized material may prove useful for provisional crowns that must remain for long periods in the oral environment.

Acrylic Resins↗
PubMed1997

Effect of provisional cements on the bond strength of various adhesive bonding systems on dentine.

Temporization of prepared teeth is needed for protection of the pulp and the restoration of the patients' aesthetic and functional needs. When zinc-oxyphosphate cement is used, eugenol-containing provisional cements are preferred because of their sedative effect to the pulp and because of their acceptable compressive strength. However, prior to definitive adhesive cementation with composite luting resins and dentine bonding agents the use of eugenol-containing provisional cements has to be considered critical because eugenol severely disturbs the polymerization of resinous materials. The purpose of this study was to compare shear bond strength values of various adhesive luting systems on dentine which had been in contact with various provisional cements prior to dentine bonding. The results show that the provisional cements which were used considerably decreased some of the bond strength values of the dentine bonding systems tested. Freegenol and Fermit, however, seem to have beneficial effects on the SBS values of Syntac and ART Bond. The only bonding system which produces acceptably high average SBS values with a eugenol-containing provisional cement was P-Bond.

Adhesives↗
PubMed2001

Use of a cross-mounting buccal index to help transfer the spatial relationships of an interim prosthesis to the definitive implant-supported prosthesis.

This article describes a new method for the fabrication of an index for definitive implant abutment selection, framework design, and fabrication. After the interim removable restoration is esthetically and functionally accepted by the patient and dentist, it can be used as a surgical guide during implant placement as well as a guide for abutment selection, framework design, and fabrication. The concepts used in the fabrication of the cross-mounting buccal index include having a reference point, maintaining the vertical dimension of occlusion, and supplying the ability for cross mounting. This procedure allows the clinician to use a duplicate of the interim restoration to select the abutments and fabricate the framework without a new denture setup. It also accelerates both patient chairtime and laboratory time, and it enhances the prosthodontic outcome.

Dental Prosthesis Design↗
PubMed2002

Procedure for obtaining proper contour of an implant-supported crown: a clinical report.

Achieving proper contour of an implant-supported crown is essential for an esthetic result, particularly in the maxillary anterior area. Development of the soft tissue profile prior to the initiation of laboratory procedures is the ideal approach. This article describes a procedure that makes use of a soft tissue cast to permit crown fabrication prior to intraoral soft tissue customization.

Adult↗