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Fig. 6 | BMC Oral Health

Fig. 6

From: External root resorption and rapid maxillary expansion in the short-term: a CBCT comparative study between tooth-borne and bone-borne appliances, using 3D imaging digital technology

Fig. 6

Deviation analysis between the T0 and T1 radicular models of first molar (M1), first premolar (P1) and second premolar (P2) in both tooth-borne (TB) and bone-borne (BB) expander groups. The colored map shows the deviations (negative blue, positive red) between the mesh models. The range of tolerance (green colour) was set a ± 0.3 mm. The colour-coded map showed that the reduction of cementum (blue-tone) was localized in the apical, bucco-apical and bucco-medial radicular areas of both abutment and un-anchored teeth in the TB group. A similar resorption pattern was identified in the BB group, despite the absence of detectable deviation at the apex

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BMC Oral Health

ISSN: 1472-6831

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