Yepes-Pediatric Oral Radiology: From Radiation Safety to Lesions and CBCT-YepesScottsdale

YepesScottsdale

Pdf Summary

This document is a lecture outline on <strong>pediatric oral radiology</strong>, emphasizing safe image acquisition, appropriate use of <strong>CBCT</strong>, systematic image interpretation, and recognition of <strong>common pediatric jaw lesions</strong>.

A major focus is <strong>radiation safety</strong> in children, who are more radiosensitive due to active cell division. The lecture compares effective doses across modalities (intraoral, panoramic, cephalometric, CBCT, and medical CT) and stresses that <strong>patient selection/justification</strong> is the biggest driver of population dose. It reinforces <strong>ALARA</strong> and the ADA’s guidance: radiographs should be prescribed only after history and clinical exam, not at routine preset intervals, and prior images should be obtained when possible.

Key dose-reduction strategies include <strong>routine rectangular collimation</strong> for periapical imaging (highlighted in <strong>NCRP Report 177, 2019</strong>) and <strong>thyroid shielding for children</strong> (also recommended by NCRP 177). The talk addresses controversy around abandoning lead aprons, noting scatter radiation considerations, but still supports thyroid collars (proper fit, potentially large thyroid-dose reduction). Digital imaging is discussed as not automatically meaning large dose savings (PSP can approximate F-speed film; sensors may reduce dose more), and the risk of increased imaging frequency with digital workflows is noted. Extraoral bitewings are presented as an alternative when intraoral bitewings are not achievable; a pediatric phantom study shows unit-dependent dose differences.

For <strong>CBCT</strong>, the lecture reviews pediatric dosimetry, stresses using the <strong>smallest appropriate field of view</strong>, and outlines practical purchasing and workflow issues (codes, staffing rules, storage, resolution). It highlights <strong>medicolegal responsibilities</strong>: scans must be competently interpreted, and the interpreter is responsible for reviewing the <strong>entire volume</strong>, not just the region of interest.

Finally, it teaches a structured <strong>radiographic interpretation approach</strong> and surveys common lesions in children: bone disorders (idiopathic bone sclerosis, fibrous dysplasia, simple bone cyst, cemento-osseous dysplasia), odontogenic cysts (radicular, dentigerous, buccal bifurcation, OKC, etc.), benign tumors (odontoma, cementoblastoma, ameloblastic fibroma, etc.), and malignant entities (osteosarcoma, Ewing sarcoma, leukemia), including key radiographic patterns and differentials.

Keywords

pediatric oral radiology

radiation safety in children

ALARA principle

NCRP Report 177 (2019)

rectangular collimation

thyroid shielding (thyroid collar)

CBCT pediatric dosimetry

small field of view (FOV) CBCT

systematic radiographic interpretation

pediatric jaw lesions