Using ParaPost Tenax fiberglass and ParaCore build-up material to restore severely damaged teeth.

This article describes a technique using ParaPost Tenax Fiber White, ParaPost Cement, and ParaPost ParaCore build-up material to restore a tooth with a significant loss of tooth structure. After successful root canal therapy, the posts were bonded in the canals and the core was built using ParaPost ParaCore build-up material. At that point, the tooth was prepared to receive a conventional porcelain-fused-to-metal crown.

Outer membrane vesicles from Porphyromonas gingivalis affect the growth and function of cultured human gingival fibroblasts and umbilical vein endothelial cells.

Background: The purpose of this study was to examine the effects of outer membrane vesicles (OMV) obtained from Porphyromonas gingivalis (Pg) on the growth and function of human gingival fibroblasts (HGF) and human umbilical vein endothelial cells (HUVEC).

Methods: OMV were obtained from a cell-free growth medium of Pg ATCC 33277 by 40% NH2SO4 precipitation and ultracentrifugation. Cell proliferation was measured by 3H-thymidine incorporation into growing HGF and HUVEC.

Characterization of CD8+ T cells and microenvironment in oral lesions of human immunodeficiency virus-infected persons with oropharyngeal candidiasis.

Oropharyngeal candidiasis (OPC), the most common oral infection in human immunodeficiency virus-positive persons, correlates with reduced blood CD4+ T cells. In those with OPC, CD8+ T cells accumulate at the lamina propria-epithelium interface at a distance from the organism at the outer epithelium. The present study aimed to characterize the tissue-associated CD8+ T cells and tissue microenvironment in both OPC+ and OPC- persons.

Root surface removal and resultant surface texture with diamond-coated ultrasonic inserts: an in vitro and SEM study.

Background: A new diamond-coated ultrasonic insert has been developed for scaling and root planing, and it was evaluated in vitro for the amount of root surface removed and the roughness of the residual root surface as a result of instrumentation.

Methods: 48 extracted single-rooted human teeth were ground flat on one root surface and mounted (flat side up) in PVC rings of standard height and diameter with improved dental stone. Each tooth surface was treated with either a plain ultrasonic insert (PI), an ultrasonic insert with a fine grit diamond coating (DI) or sharp Gracey curettes (HI).

Comparative evaluation of decalcified and non-decalcified freeze-dried bone allografts in rhesus monkeys. I. Histologic findings.

Background: Controversy exists regarding the relative merits of decalcified (DFDBA) and non-decalcified (FDBA) freeze-dried bone allografts when used in periodontal or other oral surgical procedures.

Methods: Under typical sedation, six rhesus monkeys had nylon mesh cylinders containing either DFDBA or FDBA implanted into surgically created vertical grooves on the facial aspects of all posterior quadrants. Each quadrant received three cylinders containing one type of bone, plus one empty cylinder (E) as negative control, and the full thickness flaps were closed to completely cover the cylinders.

A feeding obturator for a preterm baby with Pierre Robin sequence.

The article describes a clinical and laboratory technique for the fabrication of a feeding obturator for a baby with Pierre Robin sequence. Emphasis is placed on the direct fabrication of a preliminary custom tray, preventing thermal trauma to the tissues, and overcoming the danger of airway obstruction or foreign body aspiration. The functional problems associated with a cleft palate and various methods to overcome them are also discussed.

Immediate loading of dental implants in the edentulous mandible.

Background: The authors review the literature regarding immediate implant loading in the anterior edentulous mandible, demonstrate the technique they currently use, review preliminary results and present an illustrative case.

Materials And Methods: The authors conducted a literature search using PUBMED and Ovid databases. They considered for review 31 articles in English from 1969 to 2003 that pertained to immediate loading of the anterior mandible.

Oral granular cell tumors: an analysis of 10 new pediatric and adolescent cases and a review of the literature.

Clinicopathologic studies on the granular cell tumor, a submucosal benign soft-tissue neoplasm, have not addressed the pediatric and adolescent population. This study of patients from birth to 19 years of age describes clinically and microscopically 10 new cases and combines them with 24 well-documented pediatric cases previously published in the English-language literature. Of the 34, patient ages ranged from 3 to 19 years (mean age 14.

Adenoid ameloblastoma with dentinoid: a case report.

A man had a lesion of the anterior mandible that was initially diagnosed at 39 years of age as an adenomatoid odontogenic tumor. The lesion recurred 3 times over a span of 16 years. A consultative review of all histological findings was done and the tumor was reclassified as an ameloblastoma.

Immediate loading of the edentulous mandible: delivery of the final restoration or a provisional restoration--which method to use?

Purpose: Edentulous patients desire restoration of their chewing ability as soon as possible after placement of dental implants. The purpose of this article is to provide clinicians with evidence that immediate loading of implants placed into the anterior mandible can predictably provide the patient with early functional rehabilitation. Two methods are presented that illustrate delivery of the final restoration or a provisional implant-borne prosthesis immediately after implant placement.

How storage and mixing affect a resin-modified glass ionomer.

This study investigates how the storage time and mixing speed of an older (20+ years old), common brand triturator affect the working time of a resin-modified glass ionomer restorative material. To achieve consistent working times, the correct mixing speed should be used, especially for material near its expiration date.

Normal anatomy on tomograms for dental implants.

Some dentists may be unfamiliar with reading conventional tomograms made of dental implant sites. The purpose of this article is to aid dentists in identifying normal anatomical landmarks on cross-sectional slices and to correlate them to sagittal slices.

Immediate implant placement and provisionalization using implants with an internal connection.

Single-tooth implant restoration has evolved from traditional two-stage surgical procedures to techniques that allow implant placement and provisionalization immediately following tooth extraction. Restorative success using an immediately provisionalized implant system is based upon adherence to several clinical and biological parameters. This article will discuss the clinical and restorative considerations that must be addressed when immediately loading single-tooth implants.

Lasers in dentistry: separating science from hype.

Background: During the last two decades, much has been written in both the scientific literature and the popular press about lasers and their use in the dental office. Both soft- and hard-tissue applications have been discussed, including frenectomy, gingival contouring, caries removal and bleaching.

Overview: Almost one-third of patients surveyed by the American Dental Association in the late 1990s thought it was very important that their dentists have lasers, which could put pressure on dentists to invest in this tool to attract patients.