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PubMedDate not supplied

[Chemo-mechanical system of selective caries removal].

Carious cavities treated with traditional system and with chemo-mechanical system have been compared at Sem. The pulpal biocompatibility and toxicity absence are clinically and radiographically observed and verified on elements subjected to direct and indirect pulpal capped treatment.

Aminobutyrates↗
PubMed2002

Direct adhesive pulp capping: pulpal healing and ultra-morphology of the resin-pulp interface.

PURPOSE: To test the hypothesis that healing of adhesively capped pulps may depend on the type of adhesive system used and its specific application approach. MATERIALS AND METHODS: Buccal Class V cavities were prepared in 24 intact monkey teeth. After exposing the pulps, infiltration anesthesia (Xylocaine containing 1:80,000 epinephrine) was administered around the root apex. Two adhesives that make use of a different hybridization approach, Clearfil Liner Bond II (CLB-II) and Super-Bond D Liner II (SB-II) were directly applied to the exposed cavities. The pulpal response was histopathologically investigated using light microscopy at 3 and 90 days. In addition, the resin-pulp interface was characterized by transmission electron microscopy in an attempt to elucidate the underlying mechanisms of healing. RESULTS: In the CLB-II capped pulps, little inflammation was detected at 3 days with the bonding resin intimately attached to the exposed pulpal tissue. At 90 days, a complete dentin bridge was formed in close adaptation to the resin cap. The ultra-structure of a thin intermediary layer at the bridge front resembled a so-called "reversal line". This layer typically appears during remodeling of bone to couple the newly formed to the old osseous tissue. In the SB-II capped pulps, an acute inflammation was in progress immediately beneath the bonding resin at 3 days. This tissue was resorbing the resin that had infiltrated relatively deeply into the pulp. Whereas healing of CLB-II capped pulps appeared to have been initiated promptly, healing of SB-II capped pulps was probably retarded. The formed soft-tissue hybrid layer had first to be resorbed before the formation of a dentin bridge could have been initiated. Hence, the dentin bridge was not completely finished at 90 days and no evidence of a "reversal line"-like layer could be detected. These results suggested that although both the adhesives tested appeared effective as pulp capping materials, the process and duration of healing substantially differed.

Animals↗
PubMed1998

Reparative dentin formation in rat molars after direct pulp capping with growth factors.

Growth factors involved in normal wound healing may promote tissue repair when applied as a direct pulp capping medication. A minimal pulp exposure was made in rat molars, a pulp capping medication was placed, and the cavity was sealed. Epidermal growth factor, basic fibroblast growth factor, insulin-like growth factor II, platelet-derived growth factor-BB, and transforming growth factor-beta 1 (TGF-beta 1)--each absorbed onto a sterile collagen membrane (BioMend; Calcitek, Carlsbad, CA)--were used separately as pulpal medicaments. Dycal, unimpregnated collagen membrane, and no medication were used as controls. Eight samples from each treatment regimen were collected 2 and 3 weeks after surgery. Pulpal soft and hard tissue responses were graded. Data were analyzed by one-way ANOVA and Tukey-Kramer tests. No significant differences were detected after 2 wk. Pulp treated with TGF-beta 1 showed significantly improved soft and hard tissue healing at week 3, compared with the procedure control. We conclude that TGF-beta 1 as a pulp-capping medication enhances reparative dentin formation in rat molars.

Analysis of Variance↗
PubMedDate not supplied

Multifaceted use of ProRoot MTA root canal repair material.

Mineral Trioxide Aggregate (MTA) is a new material recently approved by the FDA for use in pulpal therapy. MTA has been reported to have superior biocompatibility and sealing ability and is less cytotoxic than other materials currently used in pulpal therapy. This report is a review of MTA's physical and biological properties and the clinical techniques of direct pulp capping, apexification, and repair of failed calcium hydroxide therapy.

Aluminum Compounds↗
PubMed1995

[A case of injured unerupted permanent tooth in a child].

Children with trauma visit frequently the department of oral and maxillofacial surgery. The treatment for injured permanent teeth is different from that for injured deciduous teeth. We have experienced a case of a 9-year-old boy with an injured unerupted immature permanent tooth with tooth crown fracture. When the tooth erupted gradually, fractured pieces were removed three times, and indirect pulp capping was performed. Three years after the injury eruption was almost completed and pulp was alive, even though the dental roentgenograph showed obliteration of the crown pulp cavity.

Child↗