Conventional Manual Probe
Composed of either stainless
steel or plastic. The design of the
working ends of manual probes
are eithertapered, round, flat, or
rectangular with smooth rounded
ends and are calibrated in
millimetres at variousintervals.
Probes have either straight or
curved working ends.
Tactile sensitivity
Easily available and inexpensive.
Even in presence of sub gingival calculusprobe
can be inserted with little navigationby the
operator.
Tip is rounded to avoid tissue trauma.
Color coded for faster and easieridentification of
readings.
Probes are heavy
Probing force is not
controlled.
Errors during
visualization
• A.Marquis color-coded probe.Calibrations are in3,6,9,12mm sections.
• B. UNC-15 probe,a 15-mm long probe with millimetermarkings and color
coding at the fifth, tenth, and fifteenthmillimeters.
• C.University of Michigan “O” probe, with Williamsmarkings (at 1, 2, 3, 5, 7, 8,
9, and 10 mm).
•D. Michigan “O”probe with markings at 3, 6, and 8 mm.
•E. World Health Organization(WHO)probe, which has a0.5-mm ball at the
tip and millimeter markings at 3.5, 8.5,and 11.5 mm and color coding from 3.5
to 5.5 mm
•FIRSTDESCRIBEDBYWHO ANDFDI IN1978 ANDINTRODUCEDBYJUKKA
AINAMO, DAVIDBARMES, GEORGEBEAGRIEIN1982. ITISRECOMMENDED
FORSCREENINGANDMONITORINGPATIENTSUSINGCPITN INDEX.
•PURPOSES-1.MEASUREMENTOFPOCKETDEPTH2.DETECTIONOFSUBGINGIVAL
CALCULUS
•THEFDI /WHO JOINTWORKINGGROUPHASADVISEDTHEMANUFACTURERS
OFCPITNPROBESTOIDENTIFYTHEINSTRUMENTSASCPITN–E
(EPIDEMIOLOGIC) , WHICHHAVE3.5-MMAND5.5-MMMARKINGS, AND
CPITN–C(CLINICAL), WHICHHAVE3.5-MM, 5.5-MM, 8.5-MM, AND11.5-
MMMARKINGS.
•CPITN PROBESHAVETHINHANDLESANDARELIGHTWEIGHT(5GM). THE
PROBESHAVEABALLTIPOF0.5 MM, WITHABLACKBANDBETWEEN3.5
MMAND5.5 MM, ASWELLASBLACKRINGSAT8.5 MMAND11.5 MM.
•ADVANTAGES:-
•A. BALLTIPFORPATIENTCOMFORT.
•B. COLOURCODEDFROM3.5-5.5; EASYTOREADMARKINGS.
•C. THINSHANKALLOWSACCESSINTOTIGHTFIBROTICSULCUS.
•SOMEOTHER1STGENERATIONPROBESTHATAREUSEDAREFURCATIONPROBE,LL 20 PROBE(HU-
FRIEDYUSA),PLASTICPROBE, BIOTYPEPROBE.
FURCATION PROBE
(NABERS PROBE)
Advantages:-Ideal for
detection of mesial
and distal
furcationsin maxillary
molars.
LL 20 PROBE(HU-FRIEDY
USA)
• A conventional
manual probe marked
in
increments of 1 mm
upto20mm.
PLASTIC PROBE
Vivid yellow tip and
black markings
provide
increased intraoral
visibility for faster and
more accurate
assessments
•THESEARETHREEDIMENSIONALPROBESINWHICHSEQUENTIALPROBEPOSITIONS
AREMEASURED.
FIFTH GENERATION PROBE
PROBES ARE BEING DESIGNED TO BE 3D AND NON -INVASIVE: AN ULTRASOUND
OROTHER DEVICE IS ADDED TO THE FOURTH GENERATION PROBE. FIFTH -
GENERATION PROBES AIM TO IDENTIFY THE ATTACHMENT LEVEL WITHOUT
PENETRATING IT.