Mandatory Drug Testing of Dental Students: To Test or Not to Test: Viewpoint 1: Drug Testing of Dental Students Should Be Mandatory for the Benefit of Students, Institutions, Patients, and the Profession and Viewpoint 2: Mandatory Drug Testing of Dental Students Carries Costs and Risks for Institutions and Students and Has Unproven Benefits.

An educational institution's decision to test or not test its students for drug use is controversial and complex. Although negative consequences of substance use disorder are well known, the consumption of prohibited substances continues to increase in young adults. Given the awareness of increasing drug use on college campuses and the potential impact on future health care professionals, issues associated with mandatory drug testing of dental students warrant investigation. The purpose of this Point/Counterpoint article is to present opposing viewpoints on whether mandatory student drug testing (MSDT) should be implemented for dental students. Viewpoint 1 affirms that MSDT is legal, ensures public safety, is recognized as a need in health care education, promotes professional and ethical responsibility, and is cost-effective. Viewpoint 2 asserts that MSDT has not been proven to be an effective deterrent for student drug use and it poses risks and costs for both institutions and students, ranging from potential violation of students' civil liberties to the consequences of false positive tests. This article's presentation of the recent literature on both sides of this issue provides dental educators with pertinent information for considering implementation of MSDT in their institutions.

Success and complications of implant-retained prostheses provided by the Post-Doctoral Prosthodontics Program, University of Puerto Rico: a cross-sectional study.

STATEMENT OF PROBLEM: The success rate of implant-retained prostheses in a postdoctoral prosthodontics program was unknown and could not be related to any set of potential clinical issues or patient characteristics. PURPOSE: The purpose of this study was to determine the success rate of implant-retained prostheses placed by prosthodontic residents between 1997 and 2012 and to evaluate the associations between patient classifications and specific restoration characteristics as related to prosthesis success or failure. MATERIAL AND METHODS: A total of 272 prostheses in 119 patients were clinically evaluated. Success was defined as the absence of prosthetic complications or any implant-related complication that affected prosthesis survival. Logistic regression was used to evaluate associations between prosthesis success/failure and a wide array of study variables, adjusting for patient age, sex, and prosthesis longevity. RESULTS: The overall success rate was 71%, with a mean prosthesis age of 4.5 years (range: 4 months to 16.8 years). Implant single crowns were the most successful prosthesis type (81% success). The most common complications observed were porcelain fractures in fixed dental prostheses (15%) and lack of stability (31%) and retention (29%) in removable dental prostheses. Having a removable prosthesis (versus natural dentition) in the opposing occlusion significantly decreased the odds of success (OR=0.26, 95% CI: 0.11-0.64). Definitively cemented fixed prostheses were more successful than those cemented with an interim cement (OR=4.56, 95% CI: 1.37-15.22). CONCLUSIONS: The overall success rate of the implant-retained prostheses placed in the program was low compared with previously published studies. This study revealed the need for an efficient, comprehensive recall system for patients receiving implant-retained prostheses, either fixed or removable.