Session #9: Basics of Interpretation & QA (Quality Assurance)

Notes from the QUIZ!

Sinuses= start @ PM

• Zygomatic process= by molars (MB of 7) + thicker

Remembering L vs. R for x-ray

• Looking @ Pt straight on

When exposing max PA, sensor needs to be placed further away from teeth to achieve paralleling technique **Sensor to tooth= parallel

Bfr exposing image, it is required to…

• Clinical exam, dental exam, med history!!!!

Anterior PA= vertical

Posterior PA= horizontal

Session #9 Learning outcomes

ID sequence of interpretation

Discuss evaluation vs. interpretation of radiographic images

ID need for QA (Quality Assurance Program)

Explain comprehensive QA + Implementation in priv practice to meet regulatory requirements

Evaluation vs. Interpretation

Evaluation: (EXPECTATION FOR Y2)

• Orient img

• ID teeth present

• Mount (anatomic order)

• Artifacts (scratches, fraying on edges, metal objects)

• Technique errors

Interpretation: (EXPECTATION FOR Y3 + look from L—>R)

• Normal anatomy (even more than Y2)

• Pattern of trabeculation

• Root morphology

  • Does root look like what it is suppose to look like, sometimes body may resorb root

• Periodontal assessment

  • Lamina dura, crestal bone, PDL, consistency, intact

• Restorations & caries

  • Understand what composite filling or crowns look like

  • Alberta—> DH can diagnose caries

  • In BC —> “I suspect there is a caries here”

• **Looking L —> R to compare against adjacent exposures

Systematic Review

Introduction to PA’S

Just some images + technique errors

Quality Assurance

• QA= mandated under Safety Code 30

• Formatted + monitored by BCDA

• Inspections every 3 yrs

• Ultimate responsibility of owner (DHP or DMD)

• Often administered by dental team

• Practice standard #9-CDHBC

What is the purpose of stepwedge

Little step block that is used to ensure output of radiation

Exposed 1x a week

Achieved for comparison

At UBC done by CDAs

What are retake logs

Retakes need to be considered carefully bcs inc dose to client

Log to track common errors

Consider continuing education to address gap in knowledge