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Published on: October 20, 2023
Three different surgical techniques of crown lengthening: A comparative study
Ramya Nethravathy1, Santhana Krishnan Vinoth, Ashwin Varghese Thomas
1Department of Periodontics, Vivekanandha Dental College for Women, Elayampalayam, Tiruchengode, Namakkal, Tamil Nadu, India.
Journal of Pharmacy & Bioallied Sciences
|August 16, 2013
Summary
Surgical extrusion is a superior technique for crown lengthening, preserving interproximal papilla and gingival margin position. This method effectively treats damaged teeth, especially in the aesthetically critical anterior region.
Area of Science:
- Dentistry
- Periodontology
- Restorative Dentistry
Background:
- Short clinical crowns compromise tooth preparation and retention.
- Surgical crown lengthening increases clinical crown length while preserving biologic width.
- Techniques include gingivectomy, apically displaced flap, and surgical extrusion.
Purpose of the Study:
- To clinically compare three surgical crown lengthening techniques: gingivectomy, apically repositioned flap, and surgical extrusion.
Main Methods:
- Fifteen patients were randomly assigned to one of the three surgical groups.
- Clinical measurements (crown length, gingival zenith, papilla height) were recorded at baseline and 3 months post-operatively.
Main Results:
- Surgical extrusion demonstrated advantages over conventional methods.
- Preservation of interproximal papilla and gingival margin position was noted.
- No marginal bone loss was observed with the surgical extrusion technique.
Conclusions:
- Surgical extrusion is effective for treating severely damaged teeth (fracture, caries, iatrogenic factors).
- This technique is particularly beneficial for anterior teeth where aesthetics are paramount.