This study is designed to evaluate and compare clinically and radiographically the effectiveness of Demineralized Dentin Allograft (DDA) versus Demineralized Dentin Autograft (Auto-DD) for preservation of alveolar ridge dimensions after surgical extraction of the impacted mandibular third molar.
Patients aged between 25 to 35 years old.
Patients scored as (ASA I).
No adverse habits such as smoking, tobacco chewing, alcohol.
Patients having bilaterally impacted mandibular third molar with similar degree of difficulty according to (Kim JY, et al).
1) Pregnant or lactating patients. 2) Relevant systemic diseases. 3) Patients with history of chemotherapy or radiotherapy.