Maintenance: From Wednesday, May 30, 2018 6:00 p.m. to Thursday, May 31, 2018 morning, maintenance work on the ZORA servers is scheduled. ZORA will not be available during this period. Thank you for your patience.
Zwahlen, R A; Cheung, L K; Zheng, L W; Chow, R L K; Li, T; Schuknecht, B; Grätz, K W; Weber, Franz E (2009). Comparison of two resorbable membrane systems in bone regeneration after removal of wisdom teeth: a randomized-controlled clinical pilot study. Clinical Oral Implants Research, 20(10):1084-1091.