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At least 1,225 records · Page 68Linked to original sources
PubMed1995

Pulpal reaction to a dental adhesive in deep human cavities.

In the last years several dental adhesives have been developed. They are supposed to chemically adhere to dentin and a liner to protect the pulp is not used. The aim of this study was to compare the short-term pulpal reaction, in an intra-toothpair study, between a dental adhesive, Scotchbond 2, and a lining system, Tubulitec, in combination with P-50 in surface-sealed cavities. Deep buccal cavities in 16 human pairs of premolars, 32 teeth, were restored in vivo with a light cured composite resin, P-50. To minimize bacterial contamination all cavities were treated with a cleanser, Tubulicid, and the cavities were surface-sealed with temporary cement, Coltosol. One tooth in each pair, the test, was treated with Scotchprep Dentin Primer and Scotchbond 2 Light Cure Dental Adhesive. In the other tooth in the pair, the control, Tubulitec Primer and Liner were used. The teeth were extracted after 6-14 days. The sections were evaluated for degree of inflammation and the presence of bacteria. Irrespective of treatment of dentin the majority of teeth, 23, including one pulpal exposure, revealed no inflammation or a few inflammatory cells. In four test teeth, including one pulpal exposure, and two controls, growth of bacteria was found on the cavity walls and slight or moderate inflammation was seen in the corresponding pulps. In one test and two control teeth slight inflammation was seen but no bacteria could be detected. In the absence of bacteria Scotchbond 2 did not seem to irritate the pulp.(ABSTRACT TRUNCATED AT 250 WORDS)

Bacteria↗
PubMed1996

Transfer of gingival contours to a master cast.

This procedure provides a means for transferring intraorally formed gingival sulcular contours surrounding a single-tooth implant-supported provisional restoration to a master cast. When this procedure is used, the final fixed prosthesis may be made in the laboratory with gingival contours identical to those developed on the provisional restoration.

Dental Prosthesis Design↗
PubMed1997

A multidisciplinary approach to restoring posterior bite collapse.

Treatment planning of posterior bite collapse cases with loss of vertical dimension can be complex. In cases where a patient's vertical dimension of occlusion has been lost, there often is drifting of posterior teeth, flaring of maxillary anterior teeth, and inadequate interarch space for a restoration. These factors are further complicated by the esthetic demands of the patient and the dentist and by the use of implants to replace missing teeth. This article presents a case report of a multidisciplinary treatment plan to achieve a functional and esthetic restoration.

Alveolar Ridge Augmentation↗
PubMed1995

Custom-guided tissue healing for improved aesthetics in implant-supported restorations.

Implant dentistry and the latest generation adhesive restorations have been dramatic innovations in dental treatment. In addition to function, aesthetics has emerged as an indispensable prerequisite in the acceptance of the final result, demanded by the patient and the standards of excellence in prosthetic restorations. When replacing a single tooth in the anterior region, this prerequisite presents a particular challenge. The types of implant and healing abutment utilised influence the aesthetics which can be achieved. This article suggests a modification in the sequence of treatment planning, placing the temporary restoration at the second stage. This "custom-guided" tissue healing, along with the incorporation of anatomically shaped components, serves to achieve natural aesthetics in hard and soft tissues.

Dental Abutments↗
PubMed1982

Influence of cementing medium on the accuracy of the remount procedure.

In light of the results of this study, a number of conclusions can be made with reference to full coverage castings. 1. Dental cement causes occlusal displacement. Zinc phosphate cement results in a greater displacement than does temporary zinc oxide-eugenol cement. 2. The disparity in seating of cast restorations obtained with no cement, temporary zinc oxide-eugenol cement, and zinc phosphate cement tends to reduce in magnitude with increasing taper of the tooth preparations. 3. Venting of crowns is an effective way of reducing the disparity in seating between no cement, temporary zinc oxide-eugenol cement, and zinc phosphate cement. 4. Remount records should be made with the restorations cemented with temporary zinc oxide-eugenol cement rather than held to the teeth by friction alone.

Acrylic Resins↗
PubMed1997

Crown foundations with a custom matrix, composites, and reverse carving.

This article describes a restorative technique for the formation of composite cores for artificial crowns. The procedure uses a semirigid matrix with reverse carving to form the cores on substantially compromised teeth. The matrix allows the placement of the composite under pressure to reduce voids and gaps and permits completion of multiple cores simultaneously. Reverse carving enables development of a common axis for multiple cores. The dentist can perform the tooth preparation for the crown at the time of the core restoration. The effort commonly applied to developing tooth morphologic features in the core can be invested instead in the formation of the interim restoration. The remaining tooth structure, pin or post placement, and location of the finish line can be evaluated with the insight of a crown foundation and not merely as a traditional restoration.

Composite Resins↗
PubMedDate not supplied

An accurate chairside technique for fabricating a temporary restoration for ITI single-tooth implant.

Current implant restoration techniques depend upon a well-fitting, anatomic provisional restoration--especially at the restoration margin--to promote healthy soft tissue contours, which are necessary for successful final restorations. The ITI implant system presents a particular challenge in this regard because of the configuration of the implant head and shoulder, especially when these are placed subgingivally. A chairside method for obtaining an accurate marginal fit and customized contours in the single-tooth provisional restoration is described and illustrated.

Dental Implants, Single-Tooth↗
PubMed2004

Multidisciplinary approach to the immediate esthetic repair and long-term treatment of an oblique crown-root fracture.

This case report describes the esthetic management of a dental trauma at the first visit and its subsequent treatments to restore the esthetics and function. Today, patients expect adequate esthetics and the ability to confidently smile immediately after the first appointment. In addition, they require that esthetics is maintained throughout the definitive treatment phase as well. After the use of the fractured crown as a temporary replacement crown, an orthodontic extrusion was undertaken to restore the physiological periodontal attachment. The tooth was then splinted for 6 months and at completion of this orthodontic stage, the permanent restoration was fabricated.

Adult↗
PubMedDate not supplied

Provisionals: not just temporaries.

When a provisional is to be worn for an extended period of time, the laboratory-processed provisional may be indicated because of its strength, wear-resistance and resistance to discoloration. A large selection of shades are available, resulting in better esthetics. The incisal blend gives the provisional a translucent effect. Office visits for repairs and maintenance will be minimized. If the patient has confidence after the provisional visit, he or she will have equal confidence in the final restoration. The only difference between the two should be the materials used.

Dental Casting Investment↗
PubMed2006

The efficacy of noncontingent escape for decreasing children's disruptive behavior during restorative dental treatment.

We evaluated the effectiveness of a dentist-implemented behavioral intervention in which brief escape from dental treatment was provided on a regular basis, independent of the child's behavior. Within a multiple baseline design across subjects, 5 children, ages 4 to 7 years, were provided with temporary escape from dental treatment on a fixed-time schedule. The intervals were signaled by an electronic timer worn by the dentist. Clinically significant reductions were observed in physically disruptive behavior across all 5 children with the introduction of noncontingent escape, and verbally disruptive behavior was markedly reduced in 4 of the 5 children. In addition, the dental staff s use of physical restraint was reduced to near zero across all 5 children. The research extends the literature in both clinical dentistry and in applied behavior analysis by demonstrating that a dentist can easily and effectively implement noncontingent reinforcement to produce clinically significant and socially important changes in children's health behavior.

Attention Deficit and Disruptive Behavior Disorder↗
PubMed2005

Histologic and histomorphometric analysis of an immediately loaded implant retrieved from man after 14 months of loading.

OBJECTIVE: The aim of this study was a histologic and histomorphometric analysis of the peri-implant tissue reactions and the bone/titanium interface in an immediately loaded titanium implant inserted in a soft bone site and retrieved, in man, after a 14-month loading period. METHODS. A 65-year-old patient presented with a partial edentulism in the left posterior mandible. The patient was rehabilitated with three dental implants inserted in the left first, second, and third molar sites. All these implants were immediately put into a nonfunctional loading mode and joined with the other implants that supported the temporary restorations. After 14 months, the most distal implant and surrounding tissues were retrieved because of psychological problems of the patient. RESULTS: Newly formed, strongly stained, compact, mature cortical bone with few marrow spaces was observed around the implant, especially in the coronal portion. No inflammatory infiltrate was present around the implant. No gaps or dense fibrous connective tissue were found at the bone/metal interface. No apical epithelial migration was found. In the cortical portion, bone remodeling areas were present with many newly formed Haversian canals. Only in a few areas of the interface was it possible to observe an osteoblast rim. In the apical portion, newly formed bone trabeculae were present; these were composed mostly by woven bone, and only a small quantity of preexisting lamellar bone was present. Histomorphometric evaluation showed that the bone/implant contact percentage was 72.6% (+/-2.7%). CONCLUSIONS: We found that, in immediately loaded implants inserted in soft tissue sites, it was possible to find a high percentage of bone-to-implant contact and that osseointegration was maintained for more than 1 year. This fact could be partly explained with the use of an implant with a rough surface.

Aged↗
PubMed1985

Esthetic mouth preparation for ceramic restoration.

At the beginning of this article, we asked the question "Is there a problem?" The answer to this question is yes, but at different levels for individual dentists and individual treatment situations. Adequate esthetic mouth preparation for ceramic restorations requires far more than tooth preparation. This article has outlined the major areas of concern. Readers must recognize areas of individual need and explore them in greater detail in the dental literature. It is hoped that this article has stimulated readers to learn more about esthetic moth preparation for ceramic restorations.

Crowns↗
PubMed2006

[Clinical study of immediate placement and early loading of dental implants].

OBJECTIVE: To evaluate the clinical results of immediate placement and early loading of dental implants. METHODS: Sixty-four dental implants were inserted into the edentulous section of 37 patients immediately after the teeth were extracted. 36 implants were inserted by one-stage operation procedure, of which 17 implants were loaded immediately in 3 edentulous jaws by temporary mandibular overdenture. Fixed crown restoration were completed on 14 implants in 1 - 2 months and on 22 implants in 3 - 4 months. The two-stage operation for another 28 implants were performed after 3 - 6 months and then were restored by routine methods. RESULTS: All implants were inserted successfully and stable. There was no peri-implantitis and X-ray films indicated that no remarkable bone resorption occurred. There were no significant differences in the peri-implant depths of gingival pocket between early loading implants and routine restoration. CONCLUSIONS: Dental immediate implant and early loading after implantation can shorten the treatment period of implant-supported prosthesis. The short-term clinical performance was not different from the routine method.

Adolescent↗