DTHY 225 (DENTISTRY) FINAL STUDY GUIDE WITH
COMPLETE SOLUTION!!
what kind of stroke do you use for an explorer?
Answers :exploratory stroke
fluid sweeping strokes, side of the tip, overlapping strokes, and have to avoid death
grip and pressure
what is an explorer used for?
Answers :mainly used to check for completement of treatment, assess tooth
irregularities
what kind of grasp do you want to have when using an explorer?
Answers :feather like grasp with relaxed fingers
what part of the explorer do you use?
Answers :the SIDE of the tip
what is tactile sensitivity?
Answers :the ability to detect tooth irregularities by feeling vibrations transferred
from the end of the tip through the handle to your fingers
the act of exploring....
Answers :requires a high level of precision and light control strokes
parts of a dental instrument
,Answers :handle, shank, working end
What is the design of an Orbind instrument?
Answers :It has a 90-degree angle to the lower shank, with the back of the tip
directed toward the soft tissue.
What type of pockets is an Orbind instrument suitable for?
Answers :It is suitable for insertion into narrow pockets and has only slight stretch
in the tissue.
What areas is an Orbind instrument not suitable for?
Answers :It cannot be used for posterior pockets and is difficult to adapt past the
anteriors.
3CH
Answers :has 90 degree angle to lower shank, the back of the tip is directed toward
the soft tissue- insertion into narrow pockets and only has slight stretch in the
tissue, can not do posterior pockets- use for the assessment of root surfaces and
difficult to adapt past the anteriors
11/12
Answers :advantageous design- several curves in the shank, does not cause much
stretching of the tissue- anteriors and posteriors- assessment of root surfaces
when do you cross arch?
Answers :CROSS ARCH ONLY FOR DISTALS- maxillary right lingual,
mandibular right lingual (left handed)
what is the purpose of a mirror?
, Answers :retract, illumination, transillumination, and indirect vision
what forms are NEW at every appointment?
Answers :tb2(if tobacco user), orofacial, caries risk, and perio
Gracey's are area specific instruments
Answers :each blade is designed for a specific area of the mouth
how many cutting edges does an explorer have?
Answers :NONE
how many cutting edges does a Gracey have?
Answers :ONE and the blade is offset to the terminal shank
blades on graceys can be combined in two different ways
Answers :1) mirror image blades on
one handle, or 2) mesial and distal blades on one handle.
2
Mesial and Distal Blades on One Handle (14/15 and 13/16)
Answers :With this combination, one instrument can be used to scale both the
distal and mesial of the
buccal or lingual aspect of a tooth.
To use the 14/15 or 13/16 Gracey, scale the distal of a tooth from the buccal or
lingual aspect,
COMPLETE SOLUTION!!
what kind of stroke do you use for an explorer?
Answers :exploratory stroke
fluid sweeping strokes, side of the tip, overlapping strokes, and have to avoid death
grip and pressure
what is an explorer used for?
Answers :mainly used to check for completement of treatment, assess tooth
irregularities
what kind of grasp do you want to have when using an explorer?
Answers :feather like grasp with relaxed fingers
what part of the explorer do you use?
Answers :the SIDE of the tip
what is tactile sensitivity?
Answers :the ability to detect tooth irregularities by feeling vibrations transferred
from the end of the tip through the handle to your fingers
the act of exploring....
Answers :requires a high level of precision and light control strokes
parts of a dental instrument
,Answers :handle, shank, working end
What is the design of an Orbind instrument?
Answers :It has a 90-degree angle to the lower shank, with the back of the tip
directed toward the soft tissue.
What type of pockets is an Orbind instrument suitable for?
Answers :It is suitable for insertion into narrow pockets and has only slight stretch
in the tissue.
What areas is an Orbind instrument not suitable for?
Answers :It cannot be used for posterior pockets and is difficult to adapt past the
anteriors.
3CH
Answers :has 90 degree angle to lower shank, the back of the tip is directed toward
the soft tissue- insertion into narrow pockets and only has slight stretch in the
tissue, can not do posterior pockets- use for the assessment of root surfaces and
difficult to adapt past the anteriors
11/12
Answers :advantageous design- several curves in the shank, does not cause much
stretching of the tissue- anteriors and posteriors- assessment of root surfaces
when do you cross arch?
Answers :CROSS ARCH ONLY FOR DISTALS- maxillary right lingual,
mandibular right lingual (left handed)
what is the purpose of a mirror?
, Answers :retract, illumination, transillumination, and indirect vision
what forms are NEW at every appointment?
Answers :tb2(if tobacco user), orofacial, caries risk, and perio
Gracey's are area specific instruments
Answers :each blade is designed for a specific area of the mouth
how many cutting edges does an explorer have?
Answers :NONE
how many cutting edges does a Gracey have?
Answers :ONE and the blade is offset to the terminal shank
blades on graceys can be combined in two different ways
Answers :1) mirror image blades on
one handle, or 2) mesial and distal blades on one handle.
2
Mesial and Distal Blades on One Handle (14/15 and 13/16)
Answers :With this combination, one instrument can be used to scale both the
distal and mesial of the
buccal or lingual aspect of a tooth.
To use the 14/15 or 13/16 Gracey, scale the distal of a tooth from the buccal or
lingual aspect,
