National Dental Assisting Examining Board (NDAEB) Practice Exam

Extreme tooth sensitivity is a condition that may indicate the need for a desensitizer during a dental procedure. This sensitivity often arises when the protective enamel is worn away or when cementum is exposed due to gum recession. When performing treatments that could exacerbate this sensitivity, such as tooth whitening, restorative procedures, or periodontal therapy, a desensitizer can help alleviate discomfort by occluding the dentinal tubules or by providing a protective seal over sensitive areas. By applying a desensitizer, dental professionals can ensure that patients experience less pain and discomfort during and after procedures, making it a vital consideration in managing this specific condition.

Other conditions, such as severe tooth decay, gingivitis, or malocclusion, do not inherently require the use of desensitizers. While they may require various treatments or management techniques, they are not typically associated with acute sensitivity that needs to be addressed with a desensitizing agent.