Radiographic Interpretation For The Dental Hygienist Pdf 2021 Jun 2026

Use magnification. If you are not zooming in on your digital sensor images, you will miss 30% of incipient proximal lesions.

| Lesion Type | Radiographic Appearance | Hygienist’s Action | | :--- | :--- | :--- | | | Radiolucency at root apex; lamina dura missing. | Refer for endodontic testing. | | Periapical Abscess | Ill-defined radiolucency; possible sinus tract. | Urgent referral; likely RCT. | | Condensing Osteitis | Radiopaque mass at apex (usually on mandibular first molar). | Indicates low-grade infection; note for dentist. | | Dens Invaginatus | “Tooth within a tooth” (usually maxillary lateral). | High risk for early pulp death; monitor. | | Idiopathic Osteosclerosis | Dense bone island; no PDL involvement. | Benign; just document in notes. | | Residual Root Fragments | Opaque or mixed density fragments in edentulous area. | Flag for possible extraction. | radiographic interpretation for the dental hygienist pdf

Effective interpretation requires a systematic approach to differentiate between normal and abnormal structures. Periodontal disease Use magnification

Uniform radiolucency beneath crown on #30 extending below CEJ. Answer: Recurrent caries (or burnout – check adjacent tooth). | Refer for endodontic testing

You are not expected to diagnose, but you are expected to recognize the abnormal and alert the dentist. Include these “red flags” in your reference PDF:

One of the biggest mistakes a hygienist can make is "surveying" the radiograph without a plan. This leads to "satisfaction of search"—finding one obvious cavity and missing the periapical lesion on the adjacent root.

One of the most common errors in early practice is interpreting a normal landmark as disease. A robust must include a radiographic atlas of: