DENTAL OPERATION 2 inection jaw

ACUTE INFECTIONS OF THE JAWS

Periapical Abscess

Objective

To drain periapical abscess (acute alveolar abscess).

Position

Supine or sitting.

Anesthesia

General or local.

Procedure

1.  The skin is prepared in an aseptic manner.

2.  The prepared area is draped with sterile towels.

3.  If a local anesthetic is used, a ring block of peripheral skin wheals is made for skin anesthesia. No attempt is made to make a deep injection.

4.  The knife is introduced into the most inferior portion of the fluctuant area.

5.  A small hemostat is introduced into the wound in closed position and then opened in several directions when introduced into the abscess cavity.

6.  A rubber drain is placed in the deepest portion of the wound so that 1 cm remains above the skin surface. It is then sutured in place.

7.  A large dressing is applied.

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DENTAL OPERATIONS 1 Tooth Abcess

Tooth Abscess

Objective

•   To expose and remove infected pulp in case of decayed tooth.

•   To do a root canal treatment procedure to drain the infection out in order to save the tooth and restore it in the near future.

Position

Supine

Anesthesia

2% Lidocaine.

Procedure

1.  An opening is made through the crown of the tooth into the pulp chamber.

2.  The pulp is then removed.

3.  The root canal(s) is cleaned and shaped to a form that can be filled. The root canals are cleaned, enlarged and shaped

4.  Medications may be put in the pulp chamber and root canal(s) to help healing.

5.  A temporary filling will be placed in the crown opening to protect the tooth between dental visits.

6.  The pulp chamber and root canals are filled and sealed.

7.  Next visit the temporary filling is removed and the pulp chamber and root canals are cleaned and filled. In the final step, a gold or porcelain crown is usually placed over the tooth.

Instruments

•   High speed handpiece to open the tooth 

•   Burs

•   Mouth mirror

•   Probe

•   Local anesthesia and syringe

•   Reamers and files to remove the dead pulp tissue

•   Saline and Hydrogen Peroxide to clean the pulp chamber and root canals

•   Cotton rolls

•   Temporary filling material

•   Gutta percha amalgum for the final filling.

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OPHTHALMIC OPERATION 10 Glucoma surgery

Glaucoma Surgery-Trabeculectomy

Objective

In cases of raised intraocular pressure (glaucoma), to bring down the pressure by creating a Channel to take more fluid (aqueous tumor) out of the eye.

Position

Supine.

Anesthesia

General or local (Peribulbar block or retrobulbar block + facial block).

Procedure

1.  Lid speculum.

2.  Superior rectus bridle suture.

3.  Conjunctival flap: cautery of blood vessels.

4.  Dissection of partial thickness scleral flap.

5.  Sclerostomy (block of tissue cut out to create a fistula for fluid drainage).

6.  Peripheral iridectomy.

7.  Anterior chamber reformation.

8.  Scleral flap sutured.

9.  Conjunctival closure.

Instruments

•   Anterior segment set.

•   Cataract set 1.

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OPHTHALMIC OPERATION 8 viterectomy

Vitrectomy

Objective

•   To clean away blood, pus, etc from the vitreous cavity of the eye.

•   As a step in removal of intraocular foreign bodies, complicat­ing retinal detachment operations, etc.

Position

Supine.

Anesthesia

General or local (Peribulbar block or Retrobulbar block + Facial block).

Procedure

1.  Lid sutures passed, clamped.

2.  Conjunctival peritomy.

3.  Rectus muscles isolated.

4.  Infusion port made; infusion started.

5.  2nd entry port made; followed by 3rd port if required.

6.  Vitrectomy performed.

7.  Retina visualized (using contact lens or indirect ophthalmo­scope).

8.  Closure of entry ports and conjunctival closure.

Instruments

•   General Oculoplasty set.

•   Vitrectomy set.

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