National Dental Hygiene Board Exam + Local Anesthesial Dental Hygiene Board Exams Review Online Courses
National Dental Hygiene Board Exam + Local Anesthesial Dental Hygiene Board Exams Review Online Courses
StudentRDH offers Local Anesthesia + National boards review solution. It features everything you need to pass the NBDHE: 23 subjects, 2000 questions, mock exam. Study on your phone, tablet, and computer. "StudentRDH is BETTER than anything else!"
Blog By:
Claire J
Claire J

Which preservative is used in dental cartridges?

Which preservative is used in dental cartridges?

5/9/2016 6:14:36 AM   |   Comments: 0   |   Views: 203

(A). Sodium bisulfite
(B). Sodium chloride
(C). Sodium bisulfate
(D). Methylparaben

 

Sodium bisulfite (with an ”i”) is the antioxidant for vasoconstrictors. Some patients can be allergic to this substance, and a plain solution should be used if sulfite allergy is a concern. This chemical is also used to preserve food and other types of medication.

Sodium bisulfate (with an ”a”) is a different compound although it is spelled very similarly. It is used in metal finishings and cleaning products.

Sodium chloride is added to a dental cartridge to make the solution isotonic with body tissues.

Methylparaben prevents the growth of bacteria, but is no longer added in single-use dental cartridges.

Other components of the dental cartridge include: local anesthetic, vasoconstrictor, distilled water, and nitrogen gas.

Answer: (A). Sodium bisulfite


Mini Boards Reviews for the National + Local Anesthesia Dental Hygiene Boards. Weekly Sample Questions at www.StudentRDH.com. Find COMPLETE review courses too. “I wish I did not spend money on other review courses!” – Bethany, Bergen CC, March 2016

You must be logged in to view comments.
Total Blog Activity
997
Total Bloggers
13,451
Total Blog Posts
4,671
Total Podcasts
1,788
Total Videos
Sponsors
Townie Perks
Townie® Poll
Have you ever switched practice management platforms for your practice?
  
Sally Gross, Member Services Specialist
Phone: +1-480-445-9710
Email: sally@farranmedia.com
©2024 Dentaltown, a division of Farran Media • All Rights Reserved
9633 S. 48th Street Suite 200 • Phoenix, AZ 85044 • Phone:+1-480-598-0001 • Fax:+1-480-598-3450