Which of the following conditions is more prevalent in countries with inadequate intake of dietary iodine?

A patient has suffered a small but jagged laceration to her left hand. When cleaning the wound, it is important that the EMT:

A) use sterile gauze and wipe away from the site of injury. B) apply an antibiotic ointment prior to cleaning the injury. C) carefully remove any embedded particles from within the laceration. D) place saline-soaked gauze in the laceration.

Radiolucencies appearing in the furcations of multirooted teeth with 16 to 30 percent bone loss indicate which periodontal case type?

A) Health or gingivitis B) Mild periodontitis C) Moderate periodontitis D) Severe periodontitis