What is Crown Lengthening?
Crown lengthening involves reshaping and repositioning gum tissue, and sometimes bone, to reveal more of the natural tooth surface. This precise procedure is commonly carried out under local anaesthetic and can improve dental function and aesthetics.
When is Crown Lengthening Needed?
01
Preparing for Dental Crowns or Fillings
There are instances where a tooth is too short or insufficiently exposed for the placement of a crown or filling. Crown lengthening allows the periodontist to expose more of the tooth structure, ensuring proper placement and secure attachment of crowns or fillings.
While removing a small amount of gum may suffice in some cases, it is often necessary to remove a portion of the bone to achieve the desired result.
02
Correcting a ‘Gummy Smile’
Some individuals may feel self-conscious about a ‘gummy smile’, where excessive gum tissue impairs the balance of their smile. This procedure reduces the appearance of excess gum tissue, enhancing smile aesthetics.
Additionally, crowns or veneers may be recommended by your dentist as a second step to refine the shape and shade of the exposed teeth.
The Crown Lengthening Procedure
Crown lengthening is a relatively straightforward process with well-defined steps:
01
Initial Consultation
The process begins with a comprehensive consultation, during which the periodontist evaluates your condition and plans the surgical approach that suits your needs.
02
Surgical Procedure
Performed under local anaesthetic, the procedure typically takes 1-2 hours. While only one tooth may require lengthening, neighbouring teeth are often included for a more natural, gradual reshaping of the gum line.
03
Soft Tissue Removal
For some cases, where only gum tissue is removed, the procedure is quick, and a laser may be used to minimise bleeding and eliminate the need for stitches.
04
Bone Removal (when necessary)
When additional bone removal is required, the procedure takes more time and often involves stitches to support healing.
05
Post-Operative Care
Following surgery, you’ll have a review appointment 1–2 weeks later to remove any stitches if they were used. Full healing typically takes 2–3 months. Once healing is complete, your regular dentist will finalise treatment by placing a crown, veneer, or filling.
Considerations for Effective Crown Lengthening
Certain factors must be carefully evaluated during the planning and execution of crown lengthening to ensure successful outcomes.
These include:
Biological Width
Adequate spacing between the bone and the base of a filling/crown for healthy gum attachment.
Ferrule Effect
Ensuring the crown has an adequate structure for stability and durability.
Crown-to-Root Ratio
Maintaining a functional and aesthetically pleasing balance between the visible tooth and its supporting root.
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