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Results for “DENTAL RESTORATION, TEMPORARY”

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At least 1,243 records · Page 69Linked to original sources
PubMed1988

Dental material artifacts on MR images.

Magnetic resonance (MR) imaging of the head and neck is becoming an important aid in evaluating pathologic conditions of the brain, midface, and pharynx. Certain dental materials cause artifacts during MR imaging of the lower midface. These artifacts can obscure the normal anatomy. This study describes the degree of artifact production caused by various materials commonly used in dental restorations. Of the materials tested, those causing artifacts were made of stainless steel, such as orthodontic bands used for braces, and pins or posts that are commonly drilled into teeth to provide structure or stability before filling. Materials used as temporary or permanent fillings or crowns--such as amalgam, gold alloy, aluminum, microfilled resin, and polyvinyl acrylics--did not cause artifacts in the images.

Dental Materials↗
PubMed2004

Use of carbon-epoxy frameworks for reinforcing provisional fixed partial dentures.

This article describes a technique for reinforcing provisional fixed partial dentures. Solid carbon-epoxy rods were shaped and coated with opaque resin to strengthen them for PMMA restorations of 3 or more units with at least 1 pontic. Because of the rigid nature of the prepolymerized carbon-epoxy material, only straight fixed partial dentures can be fabricated with this technique that allows for simplified fabrication of reinforced metal-free and cost-effective restorations.

Carbon↗
PubMed1984

Occlusal perception of thickness in patients with bridges on osseointegrated oral implants.

Perception of thickness was estimated in subjects with osseointegrated oral implant bridges (OIB), complete denture wearers and subjects with complete natural dentitions. The test was performed with factory-produced aluminum foil, 9, 20, 50, 100 and 150 micrometers thick, in the regions of the right second premolars, the canines and the central incisors. Occlusal perception did not differ between the three regions in any of the groups. Certain perceptiveness (greater than 80% of tests correct) was found at the 20 micrometers level in subjects with natural dentitions, at the 50 micrometers level in OIB subjects and at the 100 micrometers level in subjects with a complete denture in one or both jaws. It is concluded that partial or complete lack of periodontal receptors is compensated for by other perceptive organs and that implant bridge therapy ad modum Brånemark partly restores occlusal sensibility.

Aged↗
PubMed1994

Wire-reinforced, light-cured glass ionomer-resin provisional restoration: a description of the technical procedure.

A procedure to use round-wire and glass ionomer-resin cement to make practical provisional restorations is presented. The viability of the use of glass ionomer-resin cement and the need for embrasure perfection in provisional restorations is discussed. This procedure is suitable as a long-term provisional restoration where extensive coronal destruction has occurred. The inherent disadvantage of the procedure is the need to involve occlusal surfaces of the proximal teeth; thus its use is restricted to mouths in which the adjacent teeth are to receive simultaneous restorative treatment.

Adult↗
PubMed2000

[Anterior bridges with the IPS-Empress-2 System after alveolar ridge augmentation. A case report].

The success of a prosthesis is judged according to optimal function, good chewing comfort, adequate phonetics and white and pink esthetics. The aim of a treatment is to approach the perfection of nature. For anterior bridgework, the all-ceramic System IPS Empress 2 offers light transmission and reflection comparable to that of natural teeth, provided that the pink esthetics are optimised in the preprosthetic phase. The provision of an anterior bridge in the IPS Empress 2-system is presented here in the form of a case report. After extraction of the anterior teeth, a ridge augmentation including preparation of the pontic bed was carried out. The type of post and core, preparation and cementation are important parameters for the success of all-ceramic restorations.

Adult↗
PubMed2003

[Current splinting methods in dentistry. I].

Even in the ancient age there was an ambition to fix loose teeth. From the 1950s almost the same materials were used for splinting like today. A real breakthrough happened with the introduction of the etching method and the development of better composites as well as fiber-reinforced materials. In this paper the authors give a review of literature and their experience about the fiber-reinforced composites (FRC). Properties and use of the fiber-reinforced composites are presented, and suggestions are given how to apply the different materials for splinting, orthodontic retentive treatment, fixing traumatised mobile teeth, or temporary and long-distance provisional and permanent prostheses.

Acrylic Resins↗
PubMed1997

Anterior crowns in re-establishing vertical dimension of occlusion: overcoming fear of heights.

The rejuvenation of this dentition is initiated with the placement of six anterior crowns. Re-establishing the vertical dimension has allowed the restoration of pleasing proportions to the centrals. This has led to the re-assertion of the dominance of the centrals and thus corrected the reverse smile line. The restoration of these teeth demands harmonious accommodation of the requirements of esthetics, phonetics and function. These considerations are inseparable and are in fact, determinants of each other. Esthetics and phonetics help determine the degree of vertical opening and incisal edge placement. This location influences anterior guidance, lingual and labial contours, the pitch of the anterior teeth and proper lip support. The principles of proportion, so important in esthetics, allow us, to calculate incisor length. Thus, function, phonetics and esthetics are intimately intertwined and enhance one another in the restoration of vertical dimension of occlusion.

Bruxism↗
PubMed2004

Transmaxillary osteogenesis distraction combined with orthopedics and orthodontics in the correction of a severe retrusion of the upper maxilla.

A patient having adequate records and diagnosed as having Binder syndrome is presented. Nasomaxillary hypoplasia requires a definitive treatment, use of bone grafts, upper maxillary osteotomies, and advancement or a combination of both. Bone grafts can be reabsorbed, and complete maxillary advance modifies normal occlusion in a certain way, because the posterior sector is not compromised. The aim of this case treatment is to create a new osseous surface that makes the eruption of the permanent dental pieces easier and gives the correct skeletal position to the upper maxilla with distraction osteogenesis combined with an orthopedic appliance, transmaxillary segment osteotomy, and subsequent orthodontics. The absence of the osseous surface in the upper maxilla and the presence of supernumeraries in the anterior region determined the permanence of most of the temporary dental pieces, resulting in the impossibility of making the exchange to permanent dental pieces. The technique and the devices are simple and easy to manipulate. After the treatment, an adequate dental relation is restored as well as effective advance of the upper maxillary bone; thus, an excellent functional and stable esthetic result is achieved, avoiding any complication of velopharingeal incompetence.

Child, Preschool↗
PubMed1997

Demographic profile of patients who present for emergency treatment at Wits' Dental School.

The faculties of dentistry and medicine at the University of the Witwatersrand will soon amalgamate into a faculty of health sciences. To help plan service provision a demographic profile was determined for 500 patients who attended for emergency treatment in the dental faculty over all four seasons. Mean daily rates were Autumn 7.7, Winter 8.8, Spring 7.8 and Summer 3.3. Most patients (45 per cent) arrived by car, 23 per cent came by bus while 19% walked to the dental school. Over three-quarters (77 per cent) came directly from home and the same proportion had endured symptoms for more than 48 hours. Many (60 per cent) had been treated previously at the dental school of whom 31 per cent had received this within the previous month. No less than 85 per cent had no regular dentist. A third of patients had no symptoms, 26 per cent had chronic pain and in 10 per cent the pain was acute in onset. The most frequent treatments were temporary restorations (39 per cent) and pulp extirpation (34 per cent). An irregular daily work load, together with endurance of symptoms by patients, indicates that an emergency service Monday to Friday during normal working hours is adequate.

Adolescent↗
PubMed1996

Esthetic management of congenitally missing lateral incisors with single-tooth implants: a case report.

Achievement of an esthetic single-tooth restoration in the anterior segment is a difficult task for the restorative dentist. A case is described in which two congenitally missing maxillary lateral incisors were replaced with single-tooth implants. A new technique was used to restore the teeth provisionally with a polyethylene ribbon and resin replacement. Light-cured staining systems for acrylic resins and ceramics were employed to customize both the provisional and final restorations.

Adolescent↗
PubMed1996

The diagnostic template: a key element to the comprehensive esthetic treatment concept.

Provisional restorations represent a key element in the realization of extensive esthetic rehabilitations. In particular, they provide indispensible diagnostic information contribute significantly to adjacent soft tissue conditioning, and ensure the patient's comfort during the intermediate phase of treatment. The-treatment outcome strongly depends on the treatment approach chosen. This article describes a treatment rationale comprising the use of a diagnostic template. This type of work strategy, documented with clinical cases, integrates diagnostic waxups and indirect provisional restorations using simplified and efficient fabrication techniques.

Dental Impression Technique↗
PubMed1990

[Clinico-pathological studies on the effects of pulp protection (lining) under the condition with and without smear layers].

Many studies have been made of pulpal reactions to pulp protection (lining) materials have always employed a smear layer between the dentin wall and the lining materials. In this study, the author has attempted to evaluate pulpal response without a smear layer and compared effects of pulp protection (lining) with and without smear layers. Materials and methods. The experiment employed 84 vital human teeth ranging in age from 14 to 54 years. The experimental teeth were divided into 4 groups for the purposes of histopathological studies and scanning electron microscope (SEM) observation. Group C: No EDTA-treatment and lining with gutta-percha temporary material, 10 cases for histopathological study and 4 cases for SEM observation. Group TC: EDTA-treatment and lining with gutta-percha temporary material, 10 cases for histopathological study and 4 cases for SEM observation. Group P: No EDTA-treatment and lining with Protect Cement. 20 cases for histopathological study and 8 cases for SEM observation. Group TP: EDTA-treatment and lining with Protect Cement. 20 cases for histopathological study and 8 cases for SEM observation. After local anesthesia, Black's simple class I cavities were made in the experimental teeth with a diamond instrument mounted on a high-speed air turbine at room temperature with a water spray coolant. In Groups TC and TP only, an aqueous solution of 0.5% EDTA (pH 7.4) 10 ml was applied from cavity floor to dentin for 60 seconds. All cavities were then washed with distilled water, and the dentin was dried with an air stream. The floor of cavities were lined with thin layers of the following materials: Group C and TC, gutta-percha temporary material (G-C Dental Industrial Co., Tokyo, Japan). Group P and TP lining of Protect Cement which is a zinc phosphate cement containing 0.5% paraformaldehyde (Neo Dental Chemical Products, Tokyo, Japan). The restoration of each cavity was then filled with silver amalgam. Experimental teeth were clinically observed for 2 periods: short (about 14 days) and long (about 60 days) after treatment. They were then extracted under local anesthesia and prepared for histopathological study and SEM observation. Results 1. Clinical observations. During the observation period, symptoms occurred as indicated below. Group C: 2 (20%) out of 10 cases Group TC: 3 (30%) out of 10 cases Group P: None out of 20 cases Group TP: 3 (15%) out of 20 cases The only kind of clinical discomfort observed hypersensitivity to cold water. 2. Clinical evaluations Group C: 10 cases (100%) were good.(ABSTRACT TRUNCATED AT 400 WORDS)

Adolescent↗
PubMedDate not supplied

Full coverage cosmetic dentistry and gingival health.

Beautiful, healthy gingival tissue is achievable with full coverage restorations that are biologically compatible. The restorations must meet the following requirements: (1) respect for the marginal gingiva by proper preparation of the tooth and the use of a soft tissue model; (2) careful subgingival depth placement; (3) proper subgingival and supragingival contours of the temporary and final restorations; (4) healthy gingiva prior to placement of final restorations; (5) marginal integrity; and (6) polished bonding interface.

Adult↗