Sulijaya, Benso, Sandra Olivia Kuswandani, and Yuniarti Soeroso. 2016. “Contemporary Guided Bone Regeneration Therapy for Unaesthetic Anterior Peri-Implantitis Case”. Dental Journal 49 (4):181-84. https://doi.org/10.20473/j.djmkg.v49.i4.p181-184.