Using Xenograft Combined With Barrier Membrane to Improve the Formation of Deep Periodontal Pockets

Inclusion Criteria: * 26-45 years old * Completely or partially impacted mandibular third molar * No evidence of acute inflammation * In good physical status and oral health * Regular attendance at control visits Exclusion Criteria: * pregnancy or lactation * Aggregate systemic pathologies such as diabetes, thyroid disorders, bone metabolism diseases, among others * Patients taking calcium, bisphosphonates, glucocorticoids, or other drugs that can interfere with bone metabolism * Patients with uncontrolled periodontal conditions, endodontic conditions and other oral disorders * Heavy smoke (10 cigarettes/day or more) * The second molar has no contact with the third molar, or the third molar crown has alveolar bone