Gingival recession part 2. surgical management

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Questions and Answers

What is one of the main indications for surgical intervention to correct recession defects?

  • Increase tooth sensitivity
  • Decreased risk of periodontal disease
  • Increase the rate of plaque buildup
  • Improve localised soft tissue aesthetics (correct)

Which of Miller's classifications indicates a recession defect that can result in full coverage?

  • Class I and IV
  • Class II and III
  • Class III and IV
  • Class I and II (correct)

Which class of gingival recession is likely to result in only partial coverage?

  • Class I
  • Class IV
  • Class II
  • Class III (correct)

What is a potential factor that can affect the outcome of periodontal plastic surgery?

<p>Presence of chronic periodontal disease (A)</p> Signup and view all the answers

What is a goal of periodontal plastic surgery?

<p>To restore aesthetics (C)</p> Signup and view all the answers

When should factors affecting the outcome of surgery be addressed?

<p>Before surgery (D)</p> Signup and view all the answers

Why should periodontal plastic surgery be avoided in certain cases?

<p>Due to a risk of further recession progression (B)</p> Signup and view all the answers

Which class of gingival recession can be used to predict the possible outcome of surgery?

<p>Any class of gingival recession (A)</p> Signup and view all the answers

What technique was first described by Grupe and Warren?

<p>Laterally repositioned pedicle flap (A)</p> Signup and view all the answers

What is the primary purpose of applying pressure after suturing the pedicle flap?

<p>To minimize clot formation underneath the flap (D)</p> Signup and view all the answers

Who modified the technique using a split thickness flap?

<p>Hattler (D)</p> Signup and view all the answers

When is a periodontal dressing recommended?

<p>Only if deemed necessary (A)</p> Signup and view all the answers

What condition can increase the risk of procedure failure?

<p>Leaving the flap under tension (C)</p> Signup and view all the answers

What should the donor site ideally do after a flap is repositioned?

<p>Heal by secondary intention (B)</p> Signup and view all the answers

What was the focus of Cohen and Ross’s contribution to flap techniques?

<p>Technique for double-papilla repositioned flap (C)</p> Signup and view all the answers

What is a potential consequence of using a flap that is too narrow?

<p>Increased chance of procedure failure (B)</p> Signup and view all the answers

What is the main purpose of using citric acid on the root surface before surgery?

<p>To remove the smear layer for connective tissue attachment (A)</p> Signup and view all the answers

How does the width of the recession defect influence surgical procedures?

<p>It influences the choice of surgical procedure (B)</p> Signup and view all the answers

What thickness is necessary for split thickness flaps to ensure successful graft nourishment?

<p>At least 1 mm (C)</p> Signup and view all the answers

What was the outcome of using tetracycline hydrochloride in clinical studies post-surgery?

<p>No improvement in outcomes (D)</p> Signup and view all the answers

What potential issue can arise from prominent frenal attachments during periodontal surgery?

<p>Tension on gingival tissues that may lead to surgical failure (B)</p> Signup and view all the answers

Which factor is less critical when assessing recession defects?

<p>Height of the defect (A)</p> Signup and view all the answers

What is a recommended procedure to address tension caused by prominent frenal attachments before periodontal surgery?

<p>Frenectomy (C)</p> Signup and view all the answers

How does tissue thickness relate to the success of periodontal procedures?

<p>Adequate thickness is essential for graft nourishment (A)</p> Signup and view all the answers

What is the first step taken if there is insufficient keratinized tissue before performing surgery?

<p>Carry out a free gingival graft (B)</p> Signup and view all the answers

What is the minimum width of keratinized tissue required for a one-stage technique?

<p>3 mm (B)</p> Signup and view all the answers

When repositioning the gingival tissue, what suture technique is primarily used?

<p>Interrupted suture (A)</p> Signup and view all the answers

What outcome should be avoided due to inadequate suturing during the procedure?

<p>Separation of the two pedicle flaps (C)</p> Signup and view all the answers

What purpose does gentle pressure serve after the tissue is grafted?

<p>To minimize the formation of the clot (C)</p> Signup and view all the answers

How is the amount of coronal advancement determined during the procedure?

<p>By measuring the recession defect height (A)</p> Signup and view all the answers

What should be assessed before a coronally repositioned flap is performed?

<p>The interproximal bone loss (A)</p> Signup and view all the answers

What type of flap is raised if adequate keratinized tissue is available?

<p>Split thickness pedicle flap (B)</p> Signup and view all the answers

What is primarily indicated for treating Class I gingival defects?

<p>Connective tissue graft (D)</p> Signup and view all the answers

What is one advantage of using a connective tissue graft?

<p>It retains its own blood supply (C)</p> Signup and view all the answers

What surgical technique can follow a connective tissue graft for improved outcomes?

<p>Coronally repositioned pedicle flap (D)</p> Signup and view all the answers

Which class of gingival recession defect is primarily mentioned for procedures discussed?

<p>Class I (B)</p> Signup and view all the answers

What is the primary goal of the surgical techniques mentioned in the text?

<p>To provide complete root coverage (C)</p> Signup and view all the answers

Which procedure is suggested to decrease the overall length of the tooth?

<p>Enameloplasty (B)</p> Signup and view all the answers

What characteristic defines Class I recession defects?

<p>Interdental papilla is preserved (A)</p> Signup and view all the answers

What was the purpose of conducting enameloplasty in the context described?

<p>To improve the tooth's shape (C)</p> Signup and view all the answers

What is the primary benefit of periodontal plastic surgery?

<p>Reduction of gingival recession defects (A)</p> Signup and view all the answers

In which case is it more appropriate to consider a free graft?

<p>Thin gingival biotype with limited keratinised tissue (D)</p> Signup and view all the answers

What does achieving full root coverage primarily indicate?

<p>A significant decrease in the exposed root surface (B)</p> Signup and view all the answers

What is the main consideration for using a double papillae repositioned flap?

<p>Presence of sufficient keratinised tissue (C)</p> Signup and view all the answers

What is one of the challenges associated with coronal positioning of existing gingiva?

<p>Difficulty in achieving root coverage (B)</p> Signup and view all the answers

What is a potential outcome of successful periodontal plastic surgery?

<p>Improved attachment levels (D)</p> Signup and view all the answers

Which surgical technique is advisable when the gingival biotype is thick?

<p>Double papillae repositioned flap (A)</p> Signup and view all the answers

What is suggested to be governed by the presence of keratinised tissue in gingival procedures?

<p>Long-term stability of the surgical outcome (C)</p> Signup and view all the answers

Flashcards

Gingival Recession Surgery

Surgical procedure to fix gum recession defects. It aims to improve aesthetics, reduce sensitivity, and prevent further recession.

Miller Classification

A classification system categorizing gingival recession defects into four types (I-IV) based on severity and location.

Miller's Class I

Gum recession where only the root is exposed, no bone loss, and the interdental papilla is intact.

Miller's Class II

Gum recession extending beyond the interdental papilla, root exposed, but the bone is still intact.

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Miller's Class III

Gum recession involving bone loss. The bone is below the cemento-enamel junction, and there might be root exposure extending to the interdental area.

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Miller's Class IV

Gum recession involving severe bone loss. The papilla is gone, the root is significantly exposed, and the teeth might even tilt.

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Factors Affecting Outcome of Periodontal Plastic Surgery

Factors that influence the success of gum recession surgery.

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Avoid Surgery for Chronic Periodontal Disease

In cases of severe gum recession due to chronic periodontal disease, surgery is usually not recommended due to likelihood of poor outcome and possible further damage.

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Pedicle Flap

A surgical technique where a flap of gum tissue is taken from one side of a recession defect and moved over the exposed root surface.

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Laterally Repositioned Pedicle Flap

A type of pedicle flap where the flap is taken from the side of the recession defect and moved over the exposed root surface.

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Split Thickness Pedicle Flap

A modification of the pedicle flap where a thinner flap is taken and repositioned over the exposed root surface.

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Double-papilla Repositioned Flap

A specialized pedicle flap technique where the flap is taken from two sides of the recession defect and brought together over the exposed root surface.

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Suturing the Pedicle Flap

The process of securing the pedicle flap in its new position.

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Pressure Application to Pedicle Flap

Applying pressure to the pedicle flap to ensure good blood flow and prevent clots from forming.

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Donor Site

The area where the pedicle flap was taken from.

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Healing by Secondary Intention

Allows the donor site to heal naturally without stitches.

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What is the 'smear layer' in root surface treatment?

The layer of debris covering the root surface that needs to be removed for successful tissue attachment.

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How does citric acid work in root surface treatment?

Citric acid can be used to clean this layer and help create a better surface for tissue connection.

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How does the height of a recession defect affect the choice of surgical procedure?

The height of the recession, the area where gum has receded, is important for choosing the right surgical procedure. The amount of healthy gum tissue and the depth of the gum area near the teeth (vestibule) are all factors.

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What is the purpose of split thickness flaps in periodontal surgery?

These flaps are essential for nourishing the grafted tissue during healing. It is not a good idea to use too thin flaps.

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What is the ideal thickness for split thickness flaps during periodontal surgery?

Flaps with a thickness of less than 1 mm can have a negative impact on the outcome of root coverage surgery. Thicker flaps are preferred to ensure enough blood supply to the grafted tissue.

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What is a prominent frenal attachment and why is it important in periodontal surgery?

A prominent frenectomy is a tight band of tissue that can pull on the gums and cause recession. Removing it can improve the success rate of periodontal surgery.

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How can flap thickness impact grafted tissue success?

The ability of the grafted tissue to survive and thrive depends on a good blood supply from the surrounding tissue. A healthy flap contributes to this.

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Why is the thickness of the graft important in periodontal surgery?

The thickness of the graft material should be sufficient to prevent tissue death (necrosis) during the healing process.

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Coronally Repositioned Flap

A surgical technique used to cover exposed tooth roots caused by gum recession. This involves repositioning gum tissue to cover the root surface.

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Thin Gingival Biotype

A type of gum tissue that has a thin layer of surface tissue and is prone to recession.

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Keratinized Tissue

A layer of gum tissue that is attached to the tooth and provides protection. Adequate keratinized tissue is essential for successful gum grafting.

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Free Gingival Graft

A type of gum graft that involves taking tissue from one area of the mouth and transferring it to the area of the root.

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Connective Tissue Graft

A type of gum graft that involves taking connective tissue from the roof of the mouth and transplanting it to the recession area.

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Sling Suture

A type of suture that is placed around the tooth to help hold the grafted tissue in place and prevent it from moving.

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One-Stage Technique

A surgical technique that involves repositioning gum tissue over the exposed root surface in one step, without a prior graft, if the gum tissue is thick enough and there is adequate keratinized tissue.

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Miller's Class I Recession Defect

A type of gingival recession defect where the recession is located on the facial aspect of the tooth and does not involve interdental papilla.

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Miller's Class II Recession Defect

A type of gingival recession defect where the recession is located on the facial aspect of the tooth and extends to the interdental papilla.

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Enameloplasty

The process of shaping or altering the surface of a tooth, usually by removing a small amount of enamel.

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Composite Bonding

The process of applying a tooth-colored material to the surface of a tooth to improve its shape and appearance.

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Microsurgical Technique

The process of removing a layer of soft tissue to expose the underlying bone. This is often done to prepare the area for a graft or other surgical procedures.

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Macrosurgical Technique

The process of removing a larger section of tissue in a surgical procedure.

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Repositioned Flap Technique

The repositioned flap technique aims to shift the gum tissue back over exposed roots, improving aesthetics and protecting the root surface. It involves raising a flap of gum tissue, repositioning it coronally, and securing it in place with sutures.

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Pedicle Graft

The type of graft that is attached to the original tissue with a small part of the tissue to supply blood flow.

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Gingival Biotype

The thickness of the gum tissue plays a key role in choosing the best surgical approach for gum recession. Thin tissue may require different methods than thick tissue.

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Success of Periodontal Plastic Surgery

Periodontal plastic surgery, including the repositioned flap techniques and grafts, has shown promising results in reducing gum recession and improving attachment levels.

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Full Root Coverage

A single surgical procedure may not completely cover the recession. Continued improvements can be expected over time as the gum tissue heals and adapts.

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Importance of Keratinized Tissue for Repositioned Flap

The presence of sufficient keratinized tissue is important for the success of repositioned flap procedures. Insufficient tissue can make the procedure less effective or lead to complications.

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Study Notes

Gingival Recession: Surgical Management with Pedicle Grafts

  • Gingival recession is the apical displacement of the gingival margin from the cemento-enamel junction (CEJ).
  • This paper discusses using pedicle soft tissue grafts to treat localized gingival recession.
  • Non-surgical management and aetiology were discussed in a previous article in the series.
  • Surgical procedures aim to improve soft tissue aesthetics, reduce hypersensitivity, improve plaque control, and prevent further recession.

Miller's Classification of Gingival Recession

  • Class I: Recession does not reach the mucogingival junction, no interdental bone loss.
  • Class II: Recession extends to or beyond the mucogingival junction, no interdental bone loss.
  • Class III: Recession extends to or beyond the mucogingival junction, some interdental attachment loss or tooth malpositioning.
  • Class IV: Severe bone and/or soft tissue loss in interdental areas and/or severe tooth malpositioning. Class IV recession defects are often unsuitable for surgical correction.

Factors Affecting Surgical Outcome

  • Root Surface Condition: Calculus, caries, and contaminated cementum on the root surface must be removed before surgery.
  • Frenal Attachments: Prominent frenum can cause tension on gingival tissues, and frenectomy may be necessary.
  • Vestibule Depth: Shallow vestibules are not suitable for pedicle grafts, alternative techniques are recommended.
  • Tissue Type: Thin gingiva typically results in poorer outcomes compared to thick gingiva. Keratinized tissue adjacent to the recession defect is also assessed.
  • Recession Defect Size: Smaller defects respond better to surgery, with grafting material extending beyond the defect for adequate blood supply.
  • Smoking: Smoking impairs healing after periodontal procedures, and smoking cessation is advised.
  • Poor Oral Hygiene: Active periodontal disease makes surgical success unlikely.

Surgical Techniques (Pedicle Flaps)

  • Laterally Repositioned Pedicle Flap: Donor tissue from adjacent areas is repositioned over the receded area to cover exposed root surface. Donor site heals by secondary intention.
  • Double Papilla Repositioned Flap: Used when insufficient keratinised tissue exists on one side; donor tissue from both sides is repositioned.
  • Coronally Repositioned Flap: Procedure for moving existing gingiva coronally; usually in combination with other grafting to improve tissue thickness in the case of thin biotype.

Classification of Recession Defect Outcome

  • Class I and II: Can achieve full root coverage.
  • Class III: Can offer partial coverage to the level of interdental bone.
  • Class IV: Root coverage is unlikely due to significant bone and/or tissue loss and malpositioning.

Prognosis

  • Pedicle grafts are effective in correcting small recession defects, especially Class I and II.
  • Success depends on various factors including the patient's gingival biotype, amount of keratinized tissues, and the depth of the vestibule.
  • Achieving full root coverage after a single procedure is difficult, and some degree of root coverage is usually considered successful.

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