Patent ID: 7477402

Claim:
A probing member ( 90 ) for use in an apparatus for determining surface topology of a teeth portion, having a sensing end face ( 97 ) for placing proximal to the teeth portion and said probing member being in the form of an elongated transparent body ( 201 ) having a front face ( 202 ), an end mirror( 95 ), and top ( 203 ), bottom ( 204 ) and side walls ( 205 ) extending therebetween, said sensing end face being associated with said bottom wall's outer surface ( 206 ) adjacent said end mirror, said bottom wall ( 204 ) having a front section ( 204 a ) extending inwardly from said front face ( 202 ) transversely (T)to said top wall ( 203 ) and a rear section ( 204 b ) generally co-directional with said top wall ( 203 ), said front face ( 202 ) being inclined towards said top wall ( 203 ) at an acute angle ( 207 ) thereto.