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At least 433 records · Page 24Linked to original sources
PubMed2002

Direct restoration of anterior teeth: review of the clinical technique and case presentation.

Direct composite resin bonding procedures are growing in popularity as conservative and predictable restorative treatment alternatives. An understanding of the fundamental layering, contouring, and polishing principles is paramount to the success of any direct composite restoration; this awareness can be subsequently applied to indirect restorations and significantly enhance laboratory/clinician communication. This article presents a clinical technique that describes the incremental placement of direct resin veneers on a typodont and demonstrates the application of these procedures on an actual clinical case.

Adult↗
PubMed2001

Aluminum oxide air abrasion particles: a bacteriologic and SEM study.

OBJECTIVE: The objective is to determine if aerobic and anaerobic sampling yields viable biologic contaminants in the aluminum oxide air abrasion powder as delivered by the manufacturer and to determine mean particle size for comparison with the published size from manufacturers and the range of sizes in the powders. METHOD AND MATERIALS: Samples from 15 unopened aluminum oxide powder containers from 9 different manufacturers were plated on aerobic and anaerobic culture media. The cultures were incubated at 35 degrees C and observed at 24-hour intervals. Samples of each of the 15 groups were subjected to scanning electron microscope (SEM) examination. Photomicrographs were obtained and a range and mean particle size determined. RESULTS: Aerobic and anaerobic cultures demonstrated no growth in any of the samples. Mean particle size determined by SEM for 25- to 27.5-micron particles ranged from 27.3 microns to 32.0 microns with standard deviations from 1.06 microns to 7.70 microns. Mean particle size for 50 microns particles ranged from 51.6 microns to 59.7 microns with standard deviations of 5.48 microns to 14.80 microns. CONCLUSION: Aluminum oxide powders as delivered by manufacturers appeared to be free from viable microorganisms. The powder mean particle sizes approximate the labeled sizes closely enough such that they should perform properly in air abrasion tooth preparation.

Aluminum Oxide↗
PubMedDate not supplied

Two-year clinical evaluation of four polyacid-modified resin composites and a resin-modified glass-ionomer cement in Class V lesions.

OBJECTIVE: The aim of the study was to compare the clinical performances of four polyacid-modified resin composites (F2000, Dyract AP, Compoglass F, and Elan) and one resin-modified glass-ionomer cement (Vitremer) in Class V abrasion/erosion lesions. METHOD AND MATERIALS: Twenty restorations of each of the five restorative materials were placed in noncarious cervical abrasion/erosion lesions by one dentist. No cavity preparation was attempted. All teeth were isolated with cotton rolls and gingival retraction cord. The materials were manipulated according to the manufacturer's instructions and placed with the help of cervical matrixes. Restorations were finished and polished immediately after the placement. Evaluations were performed at baseline and 6 months, 1 year, and 2 years after placement for retention, color match, cavo-surface marginal discoloration, anatomic form, marginal adaptation, secondary caries, and postoperative sensitivity. RESULTS: Retention levels at 2 years were 90% for F2000, 90% for Dyract AP, 89% for Compoglass F, 84% for Elan, and 95% for the Vitremer restorations. No statistically significant differences were found among the materials after 2 years for any evaluation category. CONCLUSION: Polyacid-modified resin composite and resin-modified glass-ionomer cement restorations showed acceptable clinical performance after 2 years.

Adult↗
PubMed2001

Clinical dentin hypersensitivity: understanding the causes and prescribing a treatment.

Dentin hypersensitivity is a common condition of transient tooth pain associated with a variety of exogenous stimuli. There is substantial variation in the response to such stimuli from one person to another. Except for sensitivity associated with tooth bleaching or other tooth pathology, the clinical cause of dentin hypersensitivity is exposed dentinal tubules as a result of gingival recession and subsequent loss of cementum on root surfaces. The most widely accepted theory of how the pain occurs is Brännström's hydrodynamic theory of dentin hypersensitivity. Dentinal hypersensitivity must be differentiated from other conditions that may cause sensitive teeth prior to treatment. Three principal treatment strategies are used. Dentinal tubules can be covered by gingival grafts or dental restorations. The tubules can be plugged using compounds that can precipitate together into a large enough mass to occlude the tubules. The third strategy is to desensitize the nerve tissue within the tubules using potassium nitrate. Several over-the-counter products are available to patients to treat this condition.

Dental Cementum↗
PubMedDate not supplied

Canine risers: indications and techniques for their use.

Tooth wear leads to alterations in both static and functional occlusal contacts and may contribute to temporomandibular joint disorders and dysfunction. Treatment of tooth wear may be time consuming, expensive and destructive of remaining tooth tissues. Bruxism has been associated with the recording of abnormally high clenching forces. This paper describes a technique for the provision of the canine riser restoration, which deliberately alters the cuspal incline in canine teeth to provide a canine guided occlusion. These restorations may help to control excessive loading of teeth, limit further tooth wear and assist in the management of temporomandibular disorders and dysfunction.

Bruxism↗
PubMedDate not supplied

Clinical evaluation of a resin-modified glass ionomer adhesive system: results at five years.

One hundred non-carious, non-undercut cervical lesions were restored with Silux Plus or Estio LC and bonded with Fuji Bond LC. The restorations were evaluated yearly for retention and marginal discoloration. After five years, the overall retention rate was 96%. Of the 41 restorations examined at five years, five had clinically evident marginal discoloration.

Chi-Square Distribution↗
PubMedDate not supplied

Technique on restoring cervical lesions.

This paper describes a technique of placing a semi-rigid cervical matrix slightly past the cervical border of a lesion that extends below (apical to) the gingival crest and inserting the glass ionomer cement through an opening cut in the matrix above the soft tissue level.

Dental Restoration, Permanent↗
PubMed2002

Dentistry's orphan.

Explore the source record for details and available documents.

Dental Occlusion, Traumatic↗
PubMed2002

A critique of age estimation using attrition as the sole indicator.

The age determination of skeletal remains has been carried out using anthropological examination of the remaining bones and dentition. The aging of the dentition is based on attrition which, if physiological will correlate with age. Occasionally the only material available is a single tooth or a few teeth, or in the case of a living person, teeth in situ. In certain cases microscopic examination of the teeth may not be possible and the age estimation is then often determined by the degree of attrition associated with the tooth. In more recent times the causes of attrition have involved other factors such as bruxism, diet, environment and medication. The weaknesses and limitations of age estimation by examination of dental attrition as the sole indicator of age are highlighted.

Adolescent↗
PubMed2002

Understanding and managing dentin hypersensitivity.

Dental hygienists frequently encounter clients who present with one or several sensitive teeth. These clients often rely on the dental hygienist to help determine the cause and to provide supportive treatment to relieve their discomfort. Therefore, it is essential for dental hygienists to fully understand the complexity of dentin sensitivity, be well informed about treatment approaches, and have an appreciation of the difficulties inherent in designing and conducting clinical hypersensitivity trials. Difficulties in designing hypersensitivity research have precluded a definitive answer concerning a best treatment approach. The purpose of this course is to present dental hygienists with current information about the pain of sensitive teeth and the associated differential diagnosis. The theory of pain transmission, etiology of dentin sensitivity, professional and self-care treatment modalities, and natural remission of tooth sensitivity will be discussed. Tooth and pulp biology will be reviewed as a means of explaining treatment and management approaches. At completion of this course, as measured by a post-test, participants with be prepared to apply the knowledge gained to their evidence-based practice to positively impact the oral health of their clients.

Dental Hygienists↗
PubMed2002

[Paracervical non-caries defects].

The aim of the study was the description of origin and treatment of paracervical, non-caries defects. Dental plaque is involved in the formation of caries defects, while those of non-caries origin are produced due to the action of mechanical and chemical factors. The treatment consists in wide fluoride prophylaxis (elimination of causes) and in the application of mineralization procedures and restoration of missing dental tissue using modern dental highly-adhesive materials. At the same time occlusion disorders and parafunctions are eliminated.

Dental Prophylaxis↗
PubMedDate not supplied

Association of occlusion with eating efficiency in children with cerebral palsy and moderate eating impairment.

PURPOSE: This study focused on the contribution ofthe dental occlusion to chewing efficiency in a group of children with cerebral palsy (CP). METHODS: Twenty children aged 8.3 +/- 0.9 years participated in this study. Chewing efficiency was measured and biting and drinking skills were noted. Occlusion was determined from extra- and intra-oral photographs and from orthodontic plaster models. RESULTS: Significant correlatons were found between chewing efficiency and age (r:0.6, P=.006) and the total number of posterior teeth (r:0.7, P<.001). A marginally significant negative correlation was found between the total number of teeth and chewing time for the viscous texture (r:-0.4, P=.06). CONCLUSIONS: A possible association between chewing efficiency and occlusal wear may exist, but will need further examination. There was also a higher frequency of drooling (23%) in children who had an open bite compared to those with a normal bite. These results suggested that occlusal problems affected the efficiency of ingestion in children with CP.

Adolescent↗