Fig. 6.10 FOTI of approximal surfaces of posterior
permanent teeth. The arrow points to a shadow caused by an
approximal carious lesion. (Illustration from Mitropoulos
(1985) with kind permission of Caries Research.).
240H
Fig. 6.11 (a) Temporary tooth
separation, an elastomeric separator
between a lower second premolar and
first permanent molar. (b) The
appearance after separation, showing
access for examination of the approximal
surfaces.241H
Fig. 6.12 The tip of a laser fluorescence
device in place on the occlusal surface of
a maxillary first permanent molar.