Guided tissue regeneration in Class II furcation defects using a resorbable polylactic acid barrier

Area of Science:

• Periodontology
• Regenerative Dentistry
• Biomaterials Science

Background:

• Class II furcation defects represent a significant challenge in periodontal therapy.
• Guided tissue regeneration (GTR) aims to restore lost periodontal structures.
• Resorbable membranes offer an alternative to non-resorbable membranes in GTR procedures.

Purpose of the Study:

• To clinically evaluate the efficacy of guided tissue regeneration (GTR) using a resorbable polylactic acid membrane (Atrisorb).
• To assess GTR's effectiveness in treating human Class II furcation defects.
• To compare Atrisorb-GTR with open flap debridement (OFD) for furcation treatment.

Main Methods:

• A randomized controlled trial involving 10 patients with comparable Class II furcation defects in lower molars.
• Defects were randomly assigned to either Atrisorb-GTR (test) or OFD (control).
• Clinical parameters including probing depth and attachment levels were measured at baseline and 6 months post-surgery.

Main Results:

• Both GTR and OFD groups showed statistically significant improvements in probing depth and clinical attachment levels (P < 0.05).
• The GTR group demonstrated a statistically significant greater reduction in probing depth compared to the OFD group (P < 0.05).
• No significant differences were observed in other measured parameters between the two groups.

Conclusions:

• Guided tissue regeneration with the resorbable Atrisorb membrane is effective in treating Class II furcation defects.
• Atrisorb-GTR leads to superior probing depth reduction compared to open flap debridement.
• Resorbable membranes show promise for periodontal regeneration in furcation defects.