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Is that tooth that fails to erupt in to the dentalarch within the expected time of eruption.

The upper canines more frequently fails to

erupt than lower ones, because they start theirdevelopment at a higher level and they eruptafter the adjacent teeth.

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3/10

BUCCALY

PALATALY

MESIOANGULAR

HORIZONTAL

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INADEQUATE SPACE.

DELAYED RESORPTION OF THE PRIMARYCANINE, ANKYLOSES OF THE ( C ).

ECTOPIC POSITION OF THE TOOTH GERM(OF THECANINE)

OBSTRUCTED ERUPTION PATH (SUPERNUMERARY TEETH , ODOTOMAS,DENSE

BONE,EXCESIVE FIBROUS MUCOSA.SCAR TISSUE.HERIDITORY CAUSES.

CONGENITAL ABSENCE OF LATERAL INCISOR.

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5/10

-Palpation of the buccal sulcus abbove the rootof the deciduous canine and/or lateral incisor ,

also examination should be done palataly.-Examination of the adjacent lateral incisor.

Buccal proclination of the lateral i,e:canine

located (impacted) labialy to the root of thelateral.

Retroclination of the lateral incisor i,e:caninelocated palataly to the root of the lateral

incisor.

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6/10

-OPG

-Peri apical x-ray .(tube shift technique).

-Occlusal view

CT scan

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1-leave in situ,

2-surgical exposure,for orthodontic treatment.

3-transplantation & surgical repositioning,

4-surgical removal,

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10/10