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Clinical Evidence Review | Based on 4 Peer-Reviewed Studies (2019-2024)

Soft tissue management is a routine part of any clinical practice - yet the tools used for it are rarely evaluated side by side. Scalpels remain the default in many practices, diode lasers have gained significant adoption over the past two decades, and ceramic soft tissue burs have been quietly accumulating clinical evidence as a third option.

This review draws on four peer-reviewed randomized controlled trials published between 2019 and 2024 to compare all three modalities across efficacy, bleeding, pain, healing, and patient experience.

 

The Three Modalities

Surgical Scalpel

The gold standard for soft tissue excision. Provides precise incisional control and sharp excisional margins. Associated with higher intraoperative bleeding, greater postoperative pain, and the need for periodontal dressing in some cases. Scalpel blades are single-use and disposable, making this the lowest cost-per-procedure option of the three modalities.


Diode Laser

Widely adopted for soft tissue procedures due to its hemostatic properties, reduced postoperative discomfort, and contactless tissue interaction. Effective for depigmentation, gingivoplasty, and limited-to-moderate gingivectomy when epithelial and superficial-tissue removal is sufficient. Significant equipment investment required, with ongoing maintenance costs, but can be used for many other treatments such as frenectomy, crown lengthening, teeth whitening, and others.


Ceramic Soft Tissue Bur

Composed primarily of zirconium dioxide, ceramic soft tissue burs operate without water coolant as friction-generated heat produces immediate tissue coagulation, resulting in effective hemostasis with minimal bleeding and no clinically significant thermal necrosis when used at recommended settings (1, 3). Unlike metal burs, ceramic burs carry no risk of metallic ion contamination of the surgical field. Ceramic burs are autoclavable and reusable across multiple procedures, making them a cost-effective alternative to both the scalpel and laser over time.

Clinical Indications

All three modalities have documented application across the following soft tissue procedures:

  • Gingivoplasty and gingival contouring
  • Gingival melanin hyperpigmentation (depigmentation)
  • Gingivectomy for gingival hyperplasia
  • Peri-implant soft tissue management and implant uncovering
  • Soft tissue contouring prior to impression taking
  • Crown margin exposure and tissue displacement


Clinical Evidence: 2019–2024

Study 1 - Ceramic Bur vs. Surgical Scalpel

Nassar et al., 2024 - BMC Oral Health (1)

Split-mouth RCT, 8 patients, moderate-to-severe bilateral gingival hyperpigmentation. One arch treated with CeraTip™ ceramic bur, contralateral arch with scalpel. Follow-up at 1 week, 1 month, and 3 months.

Key findings:

  • Both techniques produced significant pigmentation reduction at all visits (p < 0.001)
  • Ceramic bur: lower pain scores, shorter procedural time, higher patient satisfaction
  • Scalpel showed slightly better early clinical outcomes, but between-group differences were not statistically significant
  • Patients showed clear preference for the ceramic bur


Study 2 - Ceramic Bur vs. Diode Laser

Negi et al., 2019 - Journal of Oral Biology and Craniofacial Research (2)

Randomized split-mouth study, 20 patients. Ceramic bur (DFS Precicut®) vs. diode laser for gingival depigmentation. DOPI, GPI, bleeding, healing, and VAS pain assessed at baseline, 7 days, 1 month, and 6 months.

Key findings:

  • Both groups: highly significant pigmentation reduction through 6 months (p < 0.001)
  • Laser sites: slightly less intraoperative bleeding
  • No statistically significant difference between groups at 6 months for gingival pigmentation index or aesthetic satisfaction
  • Ceramic bur is equally effective, significantly more cost-efficient


Study 3 - Three-Way Comparison: Ceramic Bur vs. Scalpel vs. Diode Laser

El Kilani et al., 2023 - Clinical Oral Investigations (3)

Three-arm RCT, 24 patients allocated to scalpel, ceramic bur, or 980nm diode laser. Outcomes: VAS pain, operative time, bleeding index, epithelialization, wound healing, DOPI, and Takashi Index.

Key findings:

  • Laser was significantly faster than both scalpel (p = 0.004) and ceramic bur (p = 0.001)
  • Pain at 12 hours: scalpel significantly worse than laser (p = 0.003); no significant difference between laser and ceramic bur
  • Ceramic bur and laser: significantly less bleeding than scalpel
  • Wound healing, epithelialization, and aesthetic outcomes: equivalent across all three groups


Study 4 - Ceramic Bur for Gingivectomy and Gingival Hyperplasia

AlMokadem et al., 2023 - Advanced Dental Journal (4)

RCT, 28 patients with inflammatory gingival hyperplasia or uneven gingival margins. Ceramic soft tissue trimmer vs. conventional scalpel excision for gingivectomy and gingivoplasty. Focused on postoperative pain, procedural speed, and healing.

Key findings:

  • Ceramic bur: significantly less postoperative pain than scalpel at day 1 (p < 0.001), with no statistically significant difference at days 3, 5, and 7
  • Faster procedural completion
  • Favorable healing outcomes
  • Supports ceramic bur use beyond aesthetic indications into routine soft tissue surgery


Evidence Summary

Where the Studies Agree

  • Pigmentation indices (DOPI, GPI, Hedin/MI, Takashi Index) - All three modalities produced significant pigmentation reduction from baseline across all studies. No statistically significant differences between groups in any trial.
  • Wound healing - Comparable across scalpel, laser, and ceramic bur in all studies. No modality showed a clinically significant advantage.
  • Epithelialization - Equivalent across all three groups in every trial that measured it.
  • Aesthetic satisfaction - Comparable outcomes across all modalities, with no statistically significant between-group differences in the trials that measured it. Where patient preference was specifically measured, in Nassar (1) and Negi (2), the ceramic bur was favored.
  • Gingival color - No significant difference between modalities at follow-up intervals.

Where They Diverge

  • Pain (VAS scores) - Scalpel consistently reported the highest pain scores. Ceramic bur and laser were comparable in El Kilani (3); Negi (2) reported slightly higher pain with the ceramic bur vs. laser, though not at clinically unmanageable levels.
  • Intraoperative bleeding - Ceramic bur and laser both caused significantly less bleeding than the scalpel across all studies. Between ceramic bur and laser: Negi (2) favored the laser; El Kilani (3) found no significant difference.
  • Operative time - Diode laser was significantly faster than both scalpel and ceramic bur (3). Relevant for high-volume or large surface area procedures.
  • Repigmentation rate - Nassar (1) noted less visible repigmentation at 3 months with the ceramic bur vs. scalpel, though the difference was not statistically significant.
  • Treatment cost / cost-efficiency - Scalpel blades are single-use, making it the lowest cost per procedure. Ceramic burs are reusable and require no dedicated equipment, making them the most cost-effective option over time. Diode laser carries significant equipment investment and ongoing maintenance costs.


Clinical Decision Framework

All three modalities deliver equivalent clinical outcomes for the procedures reviewed. Tool selection should be guided by procedure type, available equipment, and practice economics.

When to use a ceramic bur

  • Depigmentation, gingivoplasty, or limited gingivectomy
  • Minimal bleeding is a priority and laser is unavailable
  • Reusable across multiple procedures, making it the most cost-effective option over time
  • A reproducible, evidence-backed technique is needed without laser infrastructure
  • Not indicated for deeper-tissue excisions where precise flap-and-bone interaction is required

When to use a diode laser

  • Operative speed is a clinical priority
  • Practice already has laser infrastructure
  • Large surface area procedures where speed and hemostasis are critical

When to use a scalpel

  • Precise incisional surgery beyond epithelial removal is required
  • A sharp excisional margin is needed rather than abrasive tissue removal
  • Lowest cost-per-procedure when single-use blade cost is the only consideration


Conclusion

Four independent peer-reviewed studies conducted between 2019 and 2024 consistently show that no single modality holds a definitive clinical advantage across all parameters. The scalpel remains relevant for precise excisional work. The diode laser offers a speed advantage in larger procedures. The ceramic soft tissue bur matches both on key clinical outcomes - with less bleeding and early-phase pain than the scalpel, comparable wound-healing and aesthetic outcomes to the laser, and a fraction of the equipment cost.

Therefore, for clinicians not already invested in laser infrastructure, the evidence strongly supports the ceramic bur as a cost-efficient soft-tissue trimmer.

 

References

  1. Nassar SK, Abuel-Ela HA, Fouad YA. Ceramic soft tissue trimming bur gingival depigmentation: clinical performance and patient experience. A split mouth randomized controlled trial. BMC Oral Health. 2024;24:602. doi:10.1186/s12903-024-04345-z. PMID: 38783312
  2. Negi R, Gupta R, Dahiya P, Kumar M, Bansal V, Samlok JK. Ceramic soft tissue trimming bur: a new tool for gingival depigmentation. J Oral Biol Craniofac Res. 2019;9(1):14–18. doi:10.1016/j.jobcr.2018.07.002. PMID: 30197858
  3. El Kilani NS, Mikhail FF, El Menoufy H. Assessment of clinical outcomes and patient response to gingival depigmentation using a scalpel, ceramic bur, and diode laser 980nm. Clin Oral Investig. 2023;27(11):6939–6950. doi:10.1007/s00784-023-05310-w
  4. AlMokadem MMS, Abdelrahman AR, Nasr SS, Elkhouly S. Clinical efficacy of soft tissue trimmer versus conventional surgical excision of gingival hyperplasia on postoperative pain: a randomized clinical trial. Advanced Dental J. 2023;5(1):119–143
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