Perception of racism explains the difference between Blacks' and Whites' level of healthcare trust.

Objective: To test the hypothesis that the level of healthcare trust does not differ between Blacks and Whites.

Design: Cross-sectional telephone-based survey.

Methods: This study recruited low-income residents of Miami-Dade and Duval counties in Florida by using random-digit dialing (RDD).

The influence of dental insurance on institutionalized older adults in ranking their oral health status.

To assess whether dental insurance influences how institutionalized older adults ages 65 and older rank their oral health status, a census survey was designed for residents of Durham's (Canada) Municipal Homes for the Aged. The odds ratio (OR) and the Cochran & Mantel-Haenszel's OR were used to estimate the crude and adjusted effect of dental insurance on oral health status, respectively. Overall, 64 percent participated in the interview.

Osteotome sinus elevation and simultaneous placement of porous-surfaced dental implants: a morphometric study in rabbits.

The objective was to establish a model in rabbits in which to study the healing events associated with localized indirect osteotome-mediated maxillary sinus floor elevation in conjunction with simultaneous placement of sintered porous-surfaced dental implants. On one side of the maxilla of each of 28 rabbits, a sintered porous-surfaced titanium alloy press-fit implant was placed without the use of a bone graft material, while on the collateral side an implant was placed after first adding Bio-Oss graft particles to the osteotomy. Specimens were retrieved for morphometric assessment of bone contact and bone ingrowth of the porous implant surface after 2, 4, 6 and 8 weeks of healing.

Removal, replacement and placement of amalgam restorations by Ontario dentists in 2002.

Aim: To determine the patterns of removal, replacement and placement of amalgam restorations by Ontario dentists.

Methods: A structured self-administered postal survey was sent to dentists randomly selected from the list of all dentists licensed to practise dentistry in Ontario. The questionnaire sought information on the numbers of 1-, 2-, 3- and > or = 4-surfaced amalgam restorations and core amalgam build-ups that each dentist removed, replaced and placed during a 7-day period.

An assessment of crown-to-root ratios with short sintered porous-surfaced implants supporting prostheses in partially edentulous patients.

Purpose: Implant length, implant surface area, and crown-to-root (c/r) ratio and their relationship to crestal bone levels were analyzed in 2 groups of partially edentulous patients treated with sintered porous-surfaced dental implants.

Materials And Methods: One hundred ninety-nine implants were used to restore 74 partially edentulous patients with fixed prostheses. Implants were categorized according to their length ("short" versus "long") and estimated surface area ("small" versus "large").

Estimated quantity of mercury in amalgam waste water residue released by dentists into the sewerage system in Ontario, Canada.

Aim: To estimate the quantity of dental amalgam that Ontario dentists release into waste water.

Methods: Information from a self-administered postal survey of Ontario dentists was combined with the results of other experiments on the weight of amalgam restorations and the quantity of amalgam waste that bypasses solids separators in dental offices. Algorithms were developed to compute the quantity of amalgam waste leaving dental offices when dentists used or did not use ISO 11143 amalgam particle separators.

Estimating the weight of dental amalgam restorations.

Aim: Data on the weights of amalgam restorations are lacking. The aim of this study was to determine these weights and to develop criteria to facilitate their estimation.

Methods: Four separate regression models with 4 covariates in various combinations were used to estimate the weight of amalgam restorations.

The weight of wastes generated by removal of dental amalgam restorations and the concentration of mercury in dental wastewater.

Objective: To determine the amount of amalgam entering the waste stream during removal of dental amalgam restorations.

Methods: Dental amalgam restorations were removed from anatomic replica teeth and natural teeth by means of a tungsten carbide bur, a high-speed handpiece and a conventional suction system. The weight of amalgam particles trapped in the primary and secondary solids separators was determined.

The effect of dental insurance on the ranking of dental treatment needs in older residents of Durham Region's homes for the aged.

The effect of dental insurance on the ranking of dental needs in older adults has not been reported previously. We examined this effect using data obtained from a cross-sectional survey of older adults living in homes for the aged in Durham Region, Ontario. History of dental insurance was obtained during interviews.