Mandibular Deep Single Gingival Recession Treatment: Effect of Radiographic Hard Tissue Parameters on Root Coverage....

Area of Science:

• Periodontology
• Oral Surgery
• Regenerative Dentistry

Background:

• Deep mandibular gingival recession (≥5 mm) presents a significant clinical challenge.
• Connective tissue grafts (CTG) are a common treatment modality.
• Understanding factors influencing treatment success is crucial for optimal patient care.

Purpose of the Study:

• To evaluate the influence of hard tissue radiographic parameters on the outcomes of deep mandibular gingival recessions treated with CTG.
• To compare treatment outcomes between double-papilla envelope (DPE) and lateral sliding flap (LSF) techniques.

Main Methods:

• A prospective case series of 15 patients with deep mandibular gingival recessions treated with CTG (n=7 DPE, n=8 LSF).
• Clinical parameters (recession depth, root coverage, keratinized tissue width) assessed at baseline and 12 months.
• Pre-treatment cone-beam computed tomography (CBCT) evaluated radiographic parameters (root width, circumference, prominence, interproximal distance).

Main Results:

• Both CTG+DPE and CTG+LSF achieved significant reductions in recession depth (mean 6.8mm to 0.9mm) and increases in keratinized tissue width (mean 0.1mm to 3.6mm).
• Overall root coverage was 85.8%, with no significant differences between flap designs.
• Greater baseline recession depth correlated with greater recession reduction, but radiographic parameters did not significantly correlate with root coverage outcomes.

Conclusions:

• The evaluated hard tissue radiographic parameters did not significantly influence treatment outcomes for deep mandibular gingival recessions.
• Both double-papilla envelope and lateral sliding flap techniques, combined with connective tissue grafts, are effective for treating deep mandibular gingival recessions.
• Further research may explore other potential influencing factors beyond radiographic parameters.