Crown lengthening procedures

Crown lengthening is a minor surgical procedure that adjusts the level of the gum tissue and, in some cases, the underlying bone around a tooth. It is often carried out to expose more of the natural tooth structure for functional or restorative reasons, but it can also play an important role in managing gum disease.

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Understanding Crown Lengthening

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Crown lengthening involves reshaping the gum line to uncover more of a tooth’s surface. The procedure can be performed on one tooth, several teeth, or the entire gum line, depending on the clinical need.

In patients with gum disease, deep periodontal pockets may form around the teeth, trapping bacteria and making effective cleaning difficult. Crown lengthening can reduce pocket depth, giving better access for oral hygiene and ongoing periodontal maintenance.

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Other Situations Where It May Be Recommended

• Preparing a tooth for a crown or filling when there is not enough structure above the gum line.
• Correcting a “gummy smile” by evening out the gum line for improved balance.
• Managing broken or fractured teeth where part of the tooth lies beneath the gum.

Gum Disease and Pocket Formation

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When gum disease progresses, bacteria cause inflammation that destroys supporting gum tissue and bone. This results in periodontal pockets—spaces between the teeth and gums that are difficult to clean.

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Pocket Depth Assessment

• 1–3 mm: Generally considered healthy.
• 4–5 mm: May indicate early to moderate periodontitis.
• 6 mm or more: Suggests advanced disease and increased risk of tooth loss.

Crown lengthening can help reduce these deep pockets, making it easier for patients and dental professionals to keep the area free from harmful bacteria.

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The Crown Lengthening Procedure

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Knowing what to expect can help patients feel more comfortable about undergoing treatment.

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Step 1: Assessment

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A thorough examination is carried out to determine whether crown lengthening is suitable. This may include pocket depth measurements, X-rays, and evaluation of overall gum health.

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Step 2: Anaesthesia

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Local anaesthesia is used to numb the treatment area and ensure patient comfort.

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Step 3: Tissue Adjustment

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The gum tissue around the affected tooth is gently reshaped and repositioned. In some cases, a small amount of bone may also need to be removed to allow adequate exposure of the tooth surface.

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Step 4: Sutures and Healing

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The gums are sutured into their new position. Healing typically takes several weeks, during which the gums gradually settle into a healthier and more maintainable contour.

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Aftercare and Recovery

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Following the dentist’s instructions carefully will support smooth healing after crown lengthening.

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Short-Term Recovery

• Mild swelling, sensitivity, or discomfort may occur but usually improves within a few days.
• Patients are often advised to use antimicrobial rinses to reduce bacterial build-up.
• Soft foods are recommended during the initial healing period.

Long-Term Care

• Good oral hygiene habits, including gentle brushing and flossing, are essential once healing allows.
• Regular periodontal maintenance appointments are often recommended to monitor gum health and keep pockets from reforming.
• Addressing risk factors such as smoking or uncontrolled diabetes can improve treatment outcomes.

Benefits of Crown Lengthening in Periodontal Care

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Crown lengthening contributes to gum disease management by making teeth easier to clean and reducing areas where bacteria can hide.

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Functional Benefits

• Decreases periodontal pocket depth.
• Provides better access for both professional and at-home cleaning.
• Helps preserve teeth by stabilising the surrounding tissues.

Restorative Benefits

• Exposes more tooth structure for secure placement of fillings or crowns.
• Prevents restorations from impinging on the gum margin, reducing the risk of irritation.

Risks and Considerations

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Like all surgical procedures, crown lengthening carries some risks, although they are uncommon.

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Possible Risks

• Post-surgical sensitivity, particularly to hot or cold.
• Temporary changes in gum contour may affect the appearance of the smile.
• In rare cases, incomplete healing or infection.

Your dentist will explain the risks and provide strategies to minimise them.

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Who May Need Crown Lengthening?

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Crown lengthening may be recommended if you:

• Have periodontal pockets that are difficult to clean.
• Need a dental crown or filling, but lack sufficient visible tooth structure.
• Experience recurrent decay beneath the gum line.
• Have fractured teeth with the break extending below the gum margin.

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Preventing the Need for Further Surgery

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While crown lengthening can be an important part of gum disease treatment, prevention remains the most effective approach to oral health.

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Daily Habits

• Brush twice daily with a soft-bristle toothbrush.
• Clean between the teeth using floss or interdental brushes.
• Rinse with water or mouthwash after meals when brushing is not possible.

Professional Care

• Schedule regular dental check-ups and cleanings.
• Seek early treatment if gums bleed, swell, or feel tender.
• Discuss risk factors such as smoking cessation or medical conditions that may affect gum health.

Book a Consultation with Alpha Dental Group

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Crown lengthening is more than a restorative procedure—it can also play an important role in periodontal care. By reshaping the gums and reducing pocket depth, it supports healthier gum contours, easier cleaning, and improved long-term outcomes for patients with gum disease.

If you are concerned about gum disease or have been advised that crown lengthening may be required, contact Alpha Dental Group to arrange a consultation. Our team can assess your gum health and guide you through the most suitable treatment options.