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PubMedDate not supplied

Cavity sealers, liners, and bases: current philosophies and indications for use.

Traditional dental education has recommended the generous use of bases and liners under amalgam restorations, primarily to prevent postoperative sensitivity. However, new developments in bases and liners, as well as a better understanding of pulp biology, have changed the indications for the use of these materials. Understanding the properties of currently available materials and how they interact with pulpal tissues can help the practitioner decide when to use bases and liners and which products to choose.

Calcium Hydroxide↗
PubMedDate not supplied

Calcium hydroxide pulpotomy with a light-cured cavity-sealing material after two years.

In this follow-up study a light-cured glass ionomer lining cement was evaluated as a cavity-sealing material in calcium hydroxide pulpotomies in primary molars after one and two years. The pulpotomy dressing was a suspension of pure calcium hydroxide with either tap water or sterile saline. The success rate of the pulpotomies after one year was 87.7 percent and after two years 80.4 percent (clinically and radiographically). This result was only influenced by the type of restoration (amalgam versus stainless steel crown). The results of the present investigation compare favorably with those of other published studies of pulpotomy of primary molars using calcium hydroxide as the wound dressing.

Calcium Hydroxide↗
PubMed1997

Direct Ceromers: assuring restorative integrity with selective application of two viscosities.

The objectives of an ideal direct restoration include pulpal health, biocompatibility, occlusal stability, anatomical restitution, marginal perfection, and interproximal integrity. While tooth-colored composites have replaced amalgam as the restorative material of choice for many dental professionals, the utilization of composite materials of two different viscosities has proven effective in increasing strength and adaptation, and facilitating placement of anterior and posterior restorations. Several newly enhanced composite combinations have begun to allay reservations about directly placed tooth-colored restorations. This article classifies the ideal handling characteristics and benefits of a recently introduced, direct Ceromer system (Tetric Flow and Tetric Ceram, Ivoclar Vivadent, Amherst, NY.)

Ceramics↗
PubMed1998

Multifunctional bases and liners.

Three one-minute techniques are presented using anhydrous resin modified glass isonomer, an antibacterial and multifunctional base and liner. The isonomer is placed in deep areas of caries, as insurance, and to desensitize the tooth and fill gaps. The anhydrous glass accepts water from the dentin to fill potential contraction gaps from polymerization shrinkage of the composite fill.

Acid Etching, Dental↗
PubMed2000

Current status of pulp capping with dentin adhesive systems: a review.

Several studies have assessed the morphology and thickness of hybrid layer, the dentin bond strengths as well as sealing ability of dentin adhesive systems. However, few in vivo studies have evaluated the biocompatibility of the adhesive systems following application to deep dentin or directly to the pulp of human teeth. Many studies performed in non-human primate teeth or teeth of rats have reported pulp healing and dentin bridging following pulp capping with bonding agents. In addition, a few clinical and radiographical reports of the success of resin pulp capping have been described in the dental literature. OBJECTIVES: The aim of this review was to evaluate the literature on pulp responses following total acid etching and application of adhesive resins on deep cavities or pulp exposures. In addition, the clinical/radiographical evidence for the apparent success of vital pulp therapy and results obtained from animal and human studies were compared and discussed. SIGNIFICANCE AND CONCLUSIONS: The self-etching adhesive systems may be useful and safe when applied on dentin. In contrast, persistent inflammatory reactions as well as delay in pulpal healing and failure of dentin bridging were seen in human pulps capped with bonding agents. The results observed in animal teeth cannot be directly extrapolated to human clinical conditions. Consequently, vital pulp therapy using acidic agents and adhesive resins seems to be contraindicated.

Acid Etching, Dental↗
PubMed1998

Criteria for standardizing and increasing credibility of direct pulp capping studies.

There are many skeptics who condemn pulp capping but like to keep an eye on the research progress being made. Considerable literature emphasizes the negative aspects of vital pulp therapy and discourages its practice. Some clinicians and investigators continue to condemn pulp capping therapy for the same reasons reported in the literature 80 years ago despite the advances made in pulp biology. Clinicians are well aware of the immediate and long-term success rates after root canal therapy, but are less certain of the success of pulp capping. A number of nagging questions plague clinicians, when confronted with the choice of treatment. The research data on pulp capping is at times inadequate, confusing, misleading or even incorrect and diminishes the confidence of the practitioner in performing pulp capping.

Animals↗