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Gingivectomy
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Removal of pocket wall
- Pocket elimination surgery
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Performed by various ways
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1) Hand Instruments
—> Kirkland knife: 15 & 16 , B & L incision
—> Orbans Knife : Interdental incision
- Steps:
1. External bevel incision
2. Bevel is created on gingiva 45 degree to tooth surface
- Note: Reflection of Bone is undesirable
- Orban’s knife
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2) Electrosurgery—> Radio surgery
High frequency Electric current
(1.5-7.5 millions cycles/sec or mega Hz)
- 3 Electrodes
- 1. Single wire electrode—> Incision/ Excision
- 2. Loop electrode—> For flamming tissues
- 3. Heavier electrode—> Coagulation
- For Electrosurgery fully rectified current is used in shaving motion
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4 Types of Technique
- Electrosection/ Electrotomy
—> Used for incision & Excision & Tissue Planning
Commonly used for Periodontal surgery
- Electrocoagulation
—> Stop bleeding
- Electrofulguration
- Electrosection
- Drugs—> 5% Paraformaldehyde & KOH
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Healing after gingivectomy
- 5-14 days —> Surface epithelization is complete
- 1 month—> Complete epithelial repair occur
- 7 weeks—> Complete Repair of connective tissue
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External & Internal bevel gingivectomy
- External bevel gingivectomy : used in case of abnormally dense overgrowth of gingiva.
is more aggressive treatment involving full removal of enlarged tissue
- Internal bevel gingivectomy : performed when intense removal of excess tissue is not required
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Gingivoplasty
- Reshaping of the gingiva to create physiologic gingival contours with the sole purpose of recontouring the gingiva in absence of pockets
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Indications
- 1. Correcting the grossly thickened gingival margin
2. Correction of deformities like craters, clefts & gingival enlargements
3. Varying levels of gingival margins
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Surgical Instruments
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1) Surgical curettes & sickle Scalers
- Prichord curette & Ball Scaler B2- B3
- Kirkland knife
- Heavy curette
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2) Surgical chisel
- a. Back Action chisel
e.g Rhodes chisel—> Used in pull motion
- b. Straight chisel—> Push motion
e.g Wiedel stad chiesel
Oschsenbein #1-2 chisel
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3) Tissue forcep
- Holding tissue during suturing
e.g. De- Backey forceps
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4) Goldman fox #16 Scissor
- Remove granulation tissue
- 5) Castro Viejo Scissor & Needle Holder
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ENAP ( Excisional new attachment procedure)
- Technique :
1. Internal bevel incision
2. Remove the excised tissue with a curette & preserve the connective tissue
3. Approximate the wound edges
- Indications
1. Suprabony pockets
2. Adequate keratinized tissue
3. When esthetics are unimportant
4. Gingival enlargement
- Contraindication
1. Pockets exceed MGJ
2. Edematous tissue
3. Lack of keratinized tissue
4. Osseous defects have to be treated
5. Furcation involvement
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Curettage
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Pocket reduction surgery
- Pocket lining is removed
- It does not remove cause of inflammation i.e bacterial plaque & deposits on tooth surface
- Curettage should always be precedded by scaling & Root planing
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Can be done using
- a. Curettes : Horizontal stroke & scooping motion
- b. ENAP ( Excision New attachment procedure) : Sharp incision is given by blade to remove the pocket lining.
An internal bevel incision is given
- c. Drugs
—> Sodium sulfide
—> Alkaline NaOCl ( Antiformin)
—> Phenol
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Healing after curettage
- 1) 2-7 days —> Restoration & Re-epithelization of sulcus
- 2) 5 days —> Restoration of JE
- 3) 21 days —> Immature collagen fibres are formed