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Crown Lengthening (To overcome problems with gummy smile) PowerPoint Presentation
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Crown Lengthening (To overcome problems with gummy smile)

Crown Lengthening (To overcome problems with gummy smile)

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Crown Lengthening (To overcome problems with gummy smile)

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  1. Crown Lengthening(To overcome problems with gummy smile) • Factors must be considered • Location of gingival margins in relation to the CEJ and the bone crest • Croon-root-alveolar bone relationships • Size and shape of upper lip • Location of lip during speech and during a broad, relaxed smile

  2. Crown Lengthening(To overcome problems with gummy smile)

  3. Crown Lengthening(To overcome problems with gummy smile)

  4. Crown Lengthening(To expose sound tooth structure) • Subgingival location of caries lesions • Subgingival location of fracture lines • Inaccessibility of subgingival margins of failing restorations • Inaccessibility of subgingival prepared tooth structure for proper impressions

  5. Crown Lengthening(To expose sound tooth structure) • Biological width: • It is the sum of the supracrestal fibers, the junctional epithelium, and the gingival sulcus and has a proposed minimal dimension of 3 mm.

  6. Crown Lengthening(To expose sound tooth structure) • Techniques: • Apically positioned flap (with or without bone resection) • Force eruption of teeth

  7. Crown Lengthening(To expose sound tooth structure)(Apical Positioned Flap) • Indication: • multiple teeth • Contraindication: • Single tooth

  8. Crown Lengthening(To expose sound tooth structure)(Apical Positioned Flap)

  9. Crown Lengthening(To expose sound tooth structure)(Apical Positioned Flap)

  10. Crown Lengthening(To expose sound tooth structure)(Force Eruption) • Indications: • At sites where it is important to maintain the location of the gingival margin at adjacent teeth unchanged • At sites where removal of attachment and bone from adjacent teeth must e avoided • At sites where with angular bony defects • Contraindications: • Few teeth remaining

  11. Crown Lengthening(To expose sound tooth structure)(Force Eruption)

  12. Crown Lengthening(To expose sound tooth structure)(Force Eruption)

  13. Crown Lengthening(To expose sound tooth structure)(Force Eruption)