FURCATION INVOLVEMENT :- NABER’S PROBE
QN Nabers probe is Probe used to detect
furcation

GRADE 1
No inter radicular bone loss
Suprabony pocket
Rx – gingivectomy

GRADE II
Also known as CULL – D – SAC
Bone loss present at furcation
No through and through probing
Rx – regenerative and resective osseous surgery

GRADE III
Through and through probing
Rx – hemisection and bicuspidisation QN
Dividing the M into 2 halves + removing a portion of crown and root(hemisection)
Dividing the M into 2 halves and preserving the both

In case of maxilla Rx- root resection(other indication : long standing radiolucency with one of the root of maxillary molar)
— interdental aids – proxa brushes***

GRADE IV
Through and through probing + furcation visible , poor prognosis