Papilla Preservation Technique in Combination With Tooth Enamel Proteins and Animal Derived Bone Graft in Treating Isolated Bone Defects Between Teeth

This randomized controlled clinical and tomographic study included 48 sites with isolated interdental intrabony defects, divided into three groups. Group 1 (control) received EPPT alone, Group 2 received EPPT with EMD, and Group 3 received EPPT with EMD and BMDX (Fix-Oss xenograft). Clinical parameters probing pocket depth (PPD), relative attachment level (RAL), gingival recession (GR), and papilla height-were recorded at baseline and 12 months. Cone-beam computed tomography (CBCT) was used to evaluate tomographic changes including defect width, CEJ-BD, CEJ-AC, X-ray INFRA and defect angle.