Equipment and instruments of dental clinic. Passive voice

1. Equipment and instruments of dental clinic. Passive voice.

Подготовил студент 2-007 стом
группы Байметова Арина
Проверила Дашкина Т.Г.

2.

Bone Burs
• The burs used for the removal of bone are the
round bur and fissure bur. A large bone bur
similar to an acrylic burmay be usedwhen the
surgical procedure involves greater bone
surface area (torus) or smoothing of bone
edges of the wound.

3.

Scalpel (Handle and Blade)
• Handle. Themost commonly used handle in oral
surgery is the Bard–Parker no. 3. Its tip may receive
different types of blades.
• Blade. Blades are disposable and are of three different
types (nos. 11, 12, and 15). The most common type of
blade is no. 15, which is used for flaps and incisions on
edentulous alveolar ridges. Blade no. 12 is indicated for
incisions in the gingival sulcus and incisions posterior
to the teeth, especially in the maxillary tuberosity area.
Blade no. 11 is used for small incisions, such as those
used for incising abscesses.

4.

Periosteal Elevator
• This instrument has many different types of end. The most
commonly used periosteal elevator in intraoral surgery is
the no.9 Molt, which has two different ends: a pointed end,
used for elevating the interdental papillae of the gingiva,
and a broad end, which facilitates elevating the muco
periosteum from the bone. The Freer elevator is used for
reflecting the gingiva surrounding the tooth before
extraction. This instrument is considered suitable,
compared to standard elevators, because it is easy to use
and has thin anatomic ends. The elevator may also be used
for holding the flap after reflecting, facilitating
manipulations during the surgical procedure. The Seldin
elevator is considered most suitable for this purpose.

5.

Surgical – Anatomic Forceps
• Surgical forceps are used for suturing the wound, firmly grasping
the tissues while the needle is passed. There are two types of
forceps: the long standard surgical forceps, used in posterior areas,
and the small, narrow Adson forceps,used in anterior areas.
• The beak of the forceps has a wedge-shaped projection or tooth
onone side, and a receptor on the other,which fit into each other
when the handles are locked. This mechanism allows the forceps to
grasp the soft tissues found between the beaks very tightly.
Anatomic forceps do not have a wedge-shaped projection, but
parallel grooves. This type of forceps is used to aid in the suturing of
thewound, as well as grasping small instruments, etc., during the
surgical procedure.

6.

Bone File
• This instrument has two ends: one small end
and another with a large surface. The cutting
surface is made up of many small parallel
blades, which are set in such a way that only
pulling is effective. The bone file is used in oral
surgery to smooth bone and not to remove
large pieces of bone.

7.

Chisel and Mallet
Mallets are instruments with heavy-weighted ends. The
surfaces of the ends are made of lead or of plastic so that
some of the shock is absorbed when the mallet strikes
the chisel. The chisels used in oral surgery have different
shapes and sizes. Their cutting edges
are concave,
monobeveled or
bibeveled. The bibevel
chisel is used for
sectioning multi-rooted
teeth

8.

Needle Holders
Needle holders are used for suturing the wound. The Mayo–Hegar and
Mathieu needle holders are considered suitable for this purpose. The first
type looks similar to a hemostat and is preferred mainly for intraoral
placement of sutures. The hemostat and needle holder have the following
differences:
The short beaks of the hemostat are thinner and longer compared to
those of the needle holder.
On the needle holder, the internal surface of the short beaks is.
grooved and crosshatched, permitting a firmand stable grasp of the
needle, while the short beaks of the hemostat have parallel grooves which
are perpendicular to the long axis of the
instrument
The needle holder can release
the needle with simple pressure,
because of the gap in the last step
of the locking handle, whereas the
hemostat requires a special maneuver,
because it does not have that gap in
the last step of the locking handle.

9.

Extraction Forceps
• The simple intra-alveolar extraction is accomplished with the help
of extraction forceps and elevators. Each extraction forceps is
composed of two parts, which are crossed in such a way that they
make up one instrument when used to extract a tooth. The basic
components of the extraction forceps are the handle, which is
above the hinge, and the beaks, which are below the hinge. The
instrument is held in the hand by the handle, upon which pressure
is exerted during the extraction. The beaks are the functional
component of the forceps and grasp the tooth at the cervical region
and remove it fromthe alveolar socket. Because tooth anatomy
varies, extraction forceps with specially designed beaks have been
manufactured, so that they may be used for specific teeth. So,
according to the size and shape of the handles and beaks, the
following types exist.

10.

Maxillary Extraction Forceps for the Six
Anterior Teeth of the Maxilla.
• Beaks that are found on the same level as the
handles characterize these forceps, and the
beaks are concave and not pointed.

11.

Maxillary Molar Forceps, for the First and Second
Molar.
• There are two of these forceps: one for the
left and one for the right side. Just like the
previouslymentionedforceps, they have a slightly
curved shape that looks like an “S” . The buccal
beak of each forceps has a pointed design, which
fits into the buccal bifurcation of the two buccal
roots, while the palatal beak is concave and fits
into the convex surface of the palatal root.

12.

Maxillary Third Molar Forceps.
• These forceps have a slightly curved shape, just
like the aforementioned forceps, and are the
longest forceps, due to the posterior position of
the third molar. Because this tooth varies in
shape and size, the beaks of the forceps are
concave and smooth (without pointed ends), so
that these forceps may be used for extraction of
both the left and right thirdmolar of the upper
jaw.

13.

Maxillary Root Tip Forceps.
• The handles of the root tip forceps are
straight, while the beaks are narrow and
angle-shaped. The ends of the beaks are
concave and without a pointed design.

14.

The Passive Voice
to be + Participle II
Passive Voice
Present
Past
Future
Indefinite
Continuous
am/are/is given
am/are/is being
given
has/have been
given
-
was/were given
was/were being
Given
had been given
-
shall/will be
given
shall/will have
been given
-
Perfect
Perfect
Continuous

15. Example:

Tooth was tearing doctor
Tartar is remove the bur
Tooth is treatment did not help
The gum was cut with a scalpel
Your tooth should be removed immediately