FREQUENCY OF RADIOGRAPHIC MONITORING
All patients should be individually assessed to determine both
their caries risk status and their periodontal disease risk status, in
order that both appropriate treatment and advice regimes may be
implemented, and to determine the frequency with which monitoring
radiographs should be prescribed.
Caries Monitoring
High Caries Risk: It is recommended that all adults designated as
high caries risk have six-monthly posterior bitewing radiographs taken
until no new or active lesions are apparent and the patient has entered
a new risk category.
Medium Caries Risk: It is recommended that all adults designated
as medium caries risk have posterior bitewing radiographs taken every
two years until no new or active lesions are apparent and the patient
has entered a new risk category.
Low Caries Risk: It is recommended that all adults designated as
low risk have posterior bitewing radiographs taken at two to three year
intervals depending on the type (if any) of restorations already
present. More extended intervals may be employed if there is explicit
evidence of a continuing low caries risk.
Periodontal Monitoring
Diagnosis of periodontal disease (involving hard tissue) depends
on a clinical examination reinforced by a radiographic examination.
Bitewings offer both optimal geometry and fine detail
about bone levels around teeth. In addition these radiographs can also
be used for caries assessment, thus reducing the need for an additional
radiation dose.
A panoramic view may offer a dose advantage over a large number
of periapicals. Be aware of the limitations of panoramic radiographs
especially with respect to fine details and supplement with periapicals
at selected sites.