Crown Lengthening and Tooth Eruption
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Questions and Answers

What is the primary concern in choosing a crown lengthening surgical procedure?

  • The need for removal of pigmentation to produce pink tissues
  • The need to leave a minimum of 3mm of keratinized marginal tissue (correct)
  • The length of the anatomic crown
  • The thickness of the gingival phenotype

    • In crown lengthening, what is the minimum amount of keratinized tissue required to remain after anatomical crown exposure?

  • 2mm
  • 3mm (correct)
  • 4mm
  • 1mm

    • What type of incision is used in apically positioned flap crown lengthening?

  • Vertical releasing incision
  • Reverse bevel incision (correct)
  • External bevel incision
  • Internal bevel incision

    • What is the primary indication for gingivectomy crown lengthening?

    <p>Adequate zone of keratinized gingiva</p> Signup and view all the answers

    What is the purpose of apically positioned flap crown lengthening?

    <p>To recontour the alveolar bone crest</p> Signup and view all the answers

    What type of flap is raised in apically positioned flap crown lengthening?

    <p>Full-thickness mucoperiosteal flap</p> Signup and view all the answers

    What is the primary contraindication for crown lengthening of a single tooth?

    <p>The esthetic zone</p> Signup and view all the answers

    What is the primary indication for apically positioned flap crown lengthening?

    <p>Inadequate keratinized tissue</p> Signup and view all the answers

    What is the purpose of crown lengthening?

    <p>To expose the anatomical crown</p> Signup and view all the answers

    What is the primary goal of esthetic crown lengthening procedures?

    <p>To obtain esthetic harmony and ideal smile line</p> Signup and view all the answers

    What is the primary cause of excessive gingival display?

    <p>Short clinical crowns</p> Signup and view all the answers

    Which of the following procedures is NOT a type of esthetic crown lengthening procedure?

    <p>Ridge augmentation</p> Signup and view all the answers

    What is the primary goal of interdental papilla reconstruction?

    <p>To improve aesthetics of the interdental area</p> Signup and view all the answers

    What is the primary purpose of forced tooth eruption with fiberotomy?

    <p>To prevent crestal bone from following the root in a coronal direction</p> Signup and view all the answers

    What is the primary indication for forced tooth eruption with fibrotomy?

    <p>Short clinical crowns</p> Signup and view all the answers

    What is the primary advantage of apically positioned flap over gingivectomy?

    <p>Preservation of interdental papilla</p> Signup and view all the answers

    What is the result of excessive gingival display crown lengthening without fiberotomy?

    <p>The entire attachment apparatus moves with the tooth</p> Signup and view all the answers

    At what interval is fiberotomy typically performed?

    <p>7-10 day intervals</p> Signup and view all the answers

    What is the primary complication of ridge augmentation?

    <p>Infection of the graft site</p> Signup and view all the answers

    What is the purpose of bone recontouring in crown lengthening procedures?

    <p>To expose sound root structure</p> Signup and view all the answers

    Which of the following is NOT a recommended reading material for esthetic crown lengthening procedures?

    <p>The Journal of Esthetic Dentistry</p> Signup and view all the answers

    What is the primary goal of preventing post-extraction soft tissue collapse?

    <p>To prevent ridge defects</p> Signup and view all the answers

    What is the indication for forced tooth eruption without fiberotomy?

    <p>For reducing pocket depth at sites with angular bony defects</p> Signup and view all the answers

    What is the result of excessive gingival display crown lengthening with fiberotomy?

    <p>The crestal bone and gingival margin are retained at their pretreatment locations</p> Signup and view all the answers

    What is the purpose of repositioning the flap apically to the level of the newly contoured bone?

    <p>To allow the tooth to erupt to the intended position</p> Signup and view all the answers

    What is the outcome of forced tooth eruption when the tooth reaches the intended position?

    <p>Full-thickness flap and bone recontouring is performed to expose sound root structure</p> Signup and view all the answers

    What is the significance of the bone and soft tissue level of adjacent teeth in forced tooth eruption?

    <p>It is unchanged for esthetic reasons</p> Signup and view all the answers

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