Clinical Crown Lengthening and Preprosthetic Surgery

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Clinical Crown Lengthening and Preprosthetic
Surgery

• Online Module A
• Dentistry 664

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Preprosthetic Surgery

• Crown lengthening
• Ridge augmentation
• Ridge reduction
• Exostosis removal
• Vestibular extension
• Gingival grafting

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Indications for Clinical Crown
Lengthening

• Extensive caries
• Faulty restoration
• Tooth fracture or perforation
• Lack of passive eruption
• Hyperplastic tissue

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Objectives of Crown Lengthening

• Improve access and retention
• Maintain healthy dentogingival attachment
• Improve esthetics

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Approaches to Crown Lengthening

• Gingivectomy
• Apically positioned flap
• Apically positioned flap with osseous resection
• Orthodontic extrusion

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Gingivectomy
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Apically Positioned Flap
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