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Improved Gingival Margin Stability with a Digital Workflow in Esthetic Crown Lengthening: A Single-Center,
Sorin Gheorghe Mihali1, Dan Loloș2, Andreea Raissa Hojda3
1Department of Prosthodontics, Faculty of Dentistry, "Vasile Goldiș" Western University of Arad, 94 Revoluției Blvd., 310025 Arad, Romania.
Healthcare (Basel, Switzerland)
|December 30, 2025
Summary
Digitally guided crown lengthening offers superior gingival margin stability compared to freehand methods. This digital approach reduces recurrence and the need for surgical revision, enhancing long-term esthetic outcomes.
Area of Science:
- Periodontology
- Digital Dentistry
- Esthetic Dentistry
Background:
- Gingival margin stability is crucial for esthetic success in anterior restorations.
- Digital workflows may enhance surgical precision in crown lengthening.
- Long-term data on digital workflow impact on marginal stability is limited.
Purpose of the Study:
- To compare the long-term gingival margin stability between digitally guided and freehand crown lengthening procedures.
- To evaluate recurrence rates, periodontal parameters, complications, and patient satisfaction.
Main Methods:
- Retrospective evaluation of 87 patients (622 teeth) undergoing esthetic crown lengthening.
- Comparison of digitally guided (G1, n=62) versus freehand (G2, n=25) approaches.
- Assessment of gingival margin stability via photography and digital measurements at baseline and 12 months.
Main Results:
- Digitally guided lengthening showed significantly lower gingival margin recurrence at 12 months (0.14 mm vs. 0.27 mm, p < 0.001).
- Secondary surgical revision was needed less frequently in the guided group (1.6% vs. 16.0%, p < 0.001).
- Higher patient satisfaction was reported in the digitally guided group (VAS 9.65 vs. 8.96).
Conclusions:
- Digitally guided crown lengthening improves gingival margin stability and reduces revision needs.
- Precise bone crest control is vital for predictable, long-term esthetic results.
- Digital workflows offer a more predictable approach to esthetic crown lengthening.
