This article addresses the importance of water selection in achieving the maximum recommended level of microbial contamination of water from dental unit waterlines.

Evidence-Based Decision Making in Action:  Part 1 - Finding the Best Clinical Evidence
Jane L. Forrest, EdD, RDH; Syrene A. Miller, BA

The purpose of this article is to introduce evidence-based concepts and demonstrate how to find valid evidence to answer clinical questions.  This approach recognizes that clinicians can never be completely current with all conditions, medications, materials or available products, and provides a mechanism for addressing these gaps in knowledge in order to provide the best care possible.

The Effect of Salvadora Persica Extract (Miswak) and Chlorhexidine Gluconate on Human Dentin:  A SEM Study
Khalid Almas, BDS, MSc, DDPH, FRACDS, FDSRCS, FICD, FADI

Bacterial plaque is solely responsible for the initiation and progression of periodontal diseases.  There are different mechanical and chemical methods available for the maintenance of oral health through plaque control.  The aim of this study was to evaluate the effects of chlorhexidine gluconate and salvadora persica extract on healthy and periodontally involved human dentin.

Mentoring: A Professional Responsibility
Nora L. Cromley, RDH, MEd; Mary Ann Haisch, RDH, MS

A survey study reveals the importance of the role that dental professionals play in the selection of a career in dentistry by dental and dental hygiene students.

The AAMOP Case Challenge: White Plaque of the Lateral Tongue
Parish P. Sedghizadeh, DDS; Carl M. Allen, DDS, MSD

A healthy 48-year-old white woman presented with a chief complaint of an ‘irritated’ sensation involving her tongue.  The problem appeared to be limited to the left lateral tongue and had been noticed for at least six months by the patient.  See if you can make the diagnosis.

Continuing Education:  Submitting Dental Insurance Claims
Laurie G. Semple, CDA, RDA, CDPMA, BS; Esther K. Andrews, CDA, RDA, RDH, MA

Due to federal and state regulations regarding insurance, it is imperative to accurately file dental claims in order to prevent any fraudulent actions to decrease legal liability.  This continuing education course will provide information regarding the proper submission of dental insurance claims to third parties.