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Results for “Denture, Partial, Temporary”

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At least 55 records · Page 3Linked to original sources
PubMed1992

Construction of temporary crown for transitional removable partial dentures.

Often restoration requires maintaining patient function with the old partial denture while constructing permanent crowns and a new removable prosthesis. The technique described here allows the practitioner to produce temporary crowns to maintain function with the old partial during prosthetic reconstruction.

Crowns↗
PubMedDate not supplied

[Antelocation of mandibular disc. 2. Clinical examination of patients with reverse clicks].

119 sick who revealed clicks in mandibular joint during shifting downwords and adduction of mandible i.e. so called reverse dicks. It was possible to eliminate the clicks in the mandibular joint in a new therapeutic positioning of the mandible in 52 patients among these sick. These sick have been examined in details and treated. Algetic syndrome of dysfunction symptoms has also been found in 31 sick (60%) beside reverse clicks in the mandibular joint. The roentgenograms of mandibular joint have demonstrated various kinds of disturbances in the positioning of mandibular condyles in the greatest nodulation of the teeth in 50 sick (96.2%). The initial treatment by means of occlusion splints and/or temporary partial dentures in a new three-dimensional position of the mandible eliminating clicks in mandibular joint has been performed in all 52 sick. Follow-up examinations performed in 38 sick after 3-9 months of using the splints or temporary prosthetic restoration have demonstrated that complete elimination of the clicks in the mandibular joint has been gained in 29 persons under examination (75.3%) and in case of the remaining 9 sick (33.7%) these clicks have only significantly been diminished. From the examinations performed it follows that performing of initial prosthetic treatment is necessary in the sick with reverse clicks.

Humans↗
PubMedDate not supplied

A short-term clinical evaluation of immediately restored maxillary TiOblast single-tooth implants.

PURPOSE: The purpose of this study was to evaluate the short-term clinical outcome of single-tooth implants placed in the maxilla and immediately restored using cementless friction-fit temporary crowns. MATERIALS AND METHODS: Twenty-five patients consecutively referred to a private specialist practice for the replacement of failing or missing maxillary teeth were treated by means of immediate temporization of their single-tooth implants. Where teeth were still present, implants were placed immediately following extraction. Provisional crowns were fabricated on a special friction-fit coping by means of autopolymerizing acrylic resin. Definitive crowns were placed a mean of 4.5 months after surgery. Implant survival was recorded along with the level of the marginal bone relative to a fixed reference point 1 year after placement. Any adverse soft tissue changes were also noted. RESULTS: A total of 28 Astra Tech ST dental implants were placed. The overall survival rate at the end of the study was 96.4% for implants which were in function for periods ranging from 15.7 to 27 months. One patient, a smoker, lost 1 implant within 1 month of surgery. Mean marginal bone loss was 0.40 mm (range 0 to 1.53 mm) 1 year after placement of the implants. Many implants (37.5%) had no observed bone loss. No implants or crowns have been lost during the functional loading period. One implant was associated with an unfavorable recession of soft tissues; however, most maintained an esthetic gingival architecture. Eleven of 28 provisional restorations needed treatment; 6 required replacement during the temporization period, and 5 required cementation because of looseness. The ease of removal of the crowns allowed regular access for irrigation with chlorhexidine and thus maintenance of soft tissue health. DISCUSSION: The need to provide provisional restorations for single-tooth gaps often presents challenges. An immediate temporary partial denture or adhesive prosthesis may be unacceptable or impractical. The current study describes a simple method for the immediate temporization of single-tooth implants. The results did not indicate any negative influence on osseointegration or short-term survival once the implants were functionally loaded. CONCLUSION: Immediate temporization of maxillary single-tooth implants can be both safe and predictable, and it appears that the procedure can yield favorable soft tissue esthetics.

Acrylic Resins↗
PubMed2004

Exotherm behavior of the polymer-based provisional crown and fixed partial denture materials.

OBJECTIVES: The objective of this in vitro study was to evaluate the exothermic reaction during polymerization of the polymer-based provisional crown and fixed partial denture materials. METHODS: Three dimethacrylate-based materials and one monomethacrylate-based material were selected. The specimens were pre-conditioned to 23 degrees C. Temperature changes of the materials during polymerization were recorded in a model test-cavity overlying a type K thermocouple. Peak temperature, time to reach peak temperature and total peak area were determined. The data were statistically analyzed using one-way ANOVA at a significance level of 0.05. RESULTS: All materials exhibited exotherm release ranging from 5.1 to 12.7 degrees C. Trim gave a peak temperature that was not significantly lower (p > 0.05) than those of Protemp 3 Garant and Luxatemp, but fast set Temphase showed a significantly higher (p < 0.05) peak temperature than the other materials. All materials showed no significant differences (p > 0.05) in the total peak area. Trim showed the slowest exotherm reaction; its time to reach the peak temperature was ca. 10 min after mixing, while ca. 2 min for the other materials. SIGNIFICANCE: The dimethacrylate-based materials (except for fast set Temphase) exhibited no significant differences in peak temperature and total peak area from the monomethacrylate-based material with slower exotherm reaction. A reformulation of the dimethacrylate-based materials could be envisaged to generate a material with a slightly slower setting and a reduced peak temperature.

Acrylic Resins↗
PubMed1979

Plastic stopping--update.

Dura Seal powder and liquid and Dura Lay liquid acrylic resin materials have many uses. Methods for using these acrylic resin materials for copings, functionally generated paths, fitting crowns to clasps, centric relation stops, temporary fixed partial dentures, and porcelain additions have been described.

Acrylic Resins↗
PubMed2004

Interim restorations.

Interim restorations are a critical component of fixed prosthodontic treatment, biologically and biomechanically. Interim restoration serves an important diagnostic role as a functional and esthetic try-in and as a blueprint for the design of the definitive prosthesis. When selecting materials for any interim restoration, clinicians must consider physical properties, handling properties, patient acceptance, and material cost. Although no single material meets all the requirements and material classification alone of a given product is not a predictor of clinical performance, bis-acryl materials are typically best suited to single-unit restorations, and poly(methylmethacrylate) interim materials are generally ideal for multi-unit, complex, long-term, interim fixed prostheses. As with most dental procedures, the technique used for fabrication has a greater effect on the final result than the specific material chosen.

Biomechanical Phenomena↗
PubMed2004

Influence of dietary simulating solvents on the hardness of provisional restorative materials.

OBJECTIVE: To evaluate the influence of dietary simulating solvents on surface hardness of chemical, light and dual-cure provisional restorative materials. METHODS: The provisional materials evaluated were Temporary Bridge Resin (TBR) (Dentsply), Protemp Garant (PG) (ESPE-3M), Luxatemp Automix (LA) (DMG), Unifast LC (UF) (GC), Luxatemp Solar Plus (LS) (DMG) and Provipoint DC (PP) (Vivadent). Materials were manipulated according to manufacturers' instructions and placed in customized molds. Immediately after setting/light-polymerization, the materials were stored in the following dietary simulating solvents at 37 degrees C for 1 week: (a) heptane, (b) 100% ethanol solution (ES), (c) 75% ES, (d) 50% ES, (e) 25% ES, and (f) distilled water. Specimens stored in air were used as control. After the one-week conditioning period, hardness testing (KHN; n = 6) was carried out with a digital microhardness tester (load=100 gf; dwell time=15 s). Hardness ratios were plotted against the solubility parameter of the solvents and the Environmental Index was subsequently computed. Data were subjected to ANOVA/Scheffe's test at significance level 0.05. RESULTS: For all materials, conditioning in the various ES resulted in significantly lower KHN values compared to conditioning in air and water. TBR, UF and PP were also significantly softened by conditioning in heptane. Ranking of Environmental Index was as follows: LS>LA>PG>TBR>UF>PP. SIGNIFICANCE: All provisional materials were significantly softened by aqueous ethanol solutions. Materials based on bis-acryl resins were generally more resistant to damage from dietary solvents.

Composite Resins↗
PubMed1996

A comparison of two methods of adhering composite to metal.

Composites are used as an esthetic restorative material in prosthetic dentistry, often with a metallic substructure that provides support when large restorations are required. Different bonding systems have been proposed to occupy the gap between the composite and metal and to reduce marginal leakage at this interface, which with time results in a degradation of the metal-composite junction with dissociation of these two materials. This study compared two methods of adhesion of composite to metal: (1) the Silicoater, based on a silanization of metal and (2) the Spectralink, based on an ionization of metal. A total of 108 metal pellets were covered with composite; 36 pellets formed the baseline or control group and 72 pellets were placed on temporary fixed partial dentures for the 12 patients in the study. The two bonding methods were compared at 0, 30, and 90 days. Marginal leakage (< 0.7 microns) and marginal gap (< 0.6 microns) for the baseline groups were minimal and demonstrated no significant difference between the two samples. The degradation of marginal adaptation and hermeticity was faster and more severe with the pellets of the ionization sample. The Silicoater samples exhibited a better hydrolytic resistance with the formation of a hydrophobic polymer. The degradation of the composite-metal interface with the Spectralink method appeared to be the result of the hydrophilic character of polyfluoromethacrylate. Nevertheless, the values of the marginal gap (< 6.0 microns) and the microleakage (< 30.0 microns) remained low for the metal treatments.

Acrylic Resins↗
PubMed1999

Interim esthetic restorations in conjunction with anterior implants.

This article describes 2 procedures that can be used to provide acceptable anterior esthetics from the time of extraction, through implant placement and uncovering, until the completed implant-supported and retained crown is inserted. The first procedure presents a simple treatment option to prevent esthetic embarrassment immediately after implant placement. The second procedure uses a claspless, acrylic resin temporary removable partial denture to overcome many of the esthetic problems attendant with immediate replacement.

Acrylic Resins↗
PubMed1990

Prosthodontic management following craniomandibular pain and dysfunction therapy: a review of the literature.

Much of the literature on craniomandibular joint (CMJ) dysfunction-pain (previously called temporomandibular joint (TMJ) dysfunction-pain) is focused on the etiology and treatment of symptoms, with little discussion of finalization procedures. Craniomandibular disorders encompass a broad range of patient complaints, and the therapies used for these symptoms include an entire spectrum of treatment modalities. Following successful therapy in Phase I, the problem facing the dentist is how to finalize treatment. This paper is a review of the literature on Phase II management including rationale, principals, and methods of stabilizing and rehabilitating the occlusion, emphasizing the prosthodontic perspective.

Dental Occlusion↗
PubMed1976

Cytotoxicity of temporary crown and bridge materials.

In vitro cytotoxicity of freshly prepared temporary crown and bridge materials was studied using mouse fibroblasts prelabelled with 3H-thymidine grown in shake flask cultures. Cytotoxicity was measured as (1) lack of cell multiplication, (2) stainability with Trypan blue and (3) release of 3H-labelled material to the culture medium. All the materials tested (zinc oxide-eugenol cement (ZOE), Scutan and Sevriton) were cytotoxic in this system, ZOE most strongly. This finding favours the view that the in vitro cytotoxicity of dental materials should not be used alone as a screening test for their biological compatibility under clinical conditions since clinical experience and previous in vivo findings have established that ZOE is biologically well tolerated by the dental tissues.

Animals↗
PubMed1990

Implant prosthodontics contribute to restorative dentistry.

This paper is directed toward dental practitioners who accomplish the prosthodontic procedures for dental implants. It includes a discussion of most of the major steps in current implant dentistry. Several implant systems are compared with a look at the future of implant prosthodontics.

Dental Implantation, Endosseous↗