The April issue of the CDA Journal covers an update on halitosis, the history of local anesthesia, nerve damage from inferior nerve blocks, and a case report on using a primary tooth as a surgical guide for implant insertion.

Halitosis Update: A Review of Causes, Diagnoses and Treatments          
This report looks at the phenomenon of malodorous breath, which persists in a society rife with scientific and medical advancements. Also reviewed are the primary causes, diagnoses, treatments, and research frontiers.
Sean S. Lee, DDS; Wu Zhang, MD; and Yiming Li, DDS, MSD, PhD

Permanent Nerve Damage From Inferior Alveolar Nerve Blocks — An Update to Include Articaine
The Department of Oral and Maxillofacial Surgery at the University of California, San Francisco, conducted a three-year study of referred patients diagnosed with damage to the inferior alveolar and/or lingual nerve that only resulted from an inferior alveolar nerve block.
M. Anthony Pogrel, DDS, MD

The History of Local Anesthesia
It is through the efforts and brilliance of our pioneers that the profession has eliminated the association of pain with dental services, adding immeasurably to the human good.
Malvin E. Ring, DDS

Use of Primary Tooth as a Surgical Guide in Implant Insertion: A Case Report
A variety of surgical templates are being used routinely in implant dentistry to guide a surgeon in proper implant insertion. A clinical case and related technique are presented in this article.
Len Tolstunov, DDS

The Editor/
A Little Help Here
By Alan L. Felsenfeld, DDS

Letter to the Editor/
Articaine vs. Lidocaine

Impressions/
Well-supported Workers Reflect a Well-supported Leader

Dr. Bob/
Raiders of the Lost Arch
By Robert E. Horseman, DDS