4. Dental hygienist can preform all of these job duties EXCEPT

1 point
Take x-rays
Complete Initial screenings
Fill cavities
Cleaning teeth

Fill cavities

The dental hygienist can perform all of these job duties except for filling cavities.

To determine which job duty a dental hygienist cannot perform, let's analyze each option:

1. Take x-rays: Dental hygienists are trained to take dental x-rays. They play a crucial role in capturing images of patients' teeth and oral structures, which help dentists diagnose dental conditions.

2. Complete initial screenings: Dental hygienists are responsible for conducting initial screenings as part of their job. They evaluate patients' oral health, examine their gums, teeth, and mouth, and identify any dental issues that need attention.

3. Fill cavities: Dental hygienists are not licensed to fill cavities. This task is typically performed by dentists or dental assistants who have received specialized training in restorative procedures.

4. Cleaning teeth: Cleaning teeth is one of the primary tasks of a dental hygienist. They use various tools and techniques to remove plaque, tartar, and stains from patients' teeth, promoting good oral hygiene and preventing dental problems.

Based on the given options, the job duty a dental hygienist cannot perform is filling cavities.