The Influence of Abutment Angulation on Screw Loosening of Implants in the Anterior Maxilla.Published in:International Journal of Oral & Maxillofacial Implants, 2011, v. 26, n. 1, p. 45By:Chun-Yeo Ha;Yung-Jun Lim;Myung-Joo Kim;Jung-Han ChoiPublication type:Article