Aim: To compare the speed (efficiency) and effectiveness of 4 different fiber post removal techniques. Materials and Methods: Fiber posts (GC Corporation, Japan) were cemented using Gradia Core (GC Corporation, Japan) into 36 maxillary first molar teeth, after endodontic therapy and post space preparation were completed. The teeth were divided into four groups according to technique of post removal: group A; Largo reamers (Dentsply Maillefer, Switzerland), group B; Roane Gates Glidden drills (Miltex GmbH, Rietheim-Weilheim, Germany), group C; Needle bur #859 314 010 (Komet, Brassseler, Germany) group D; Thermafil Post Space Bur # 5 length 25(Dentsply Maillefer, Switzerland). Samples were then divided between three general practitioners for post removal. Speed (efficiency) and effectiveness according to a 6 degrees scale were recorded. Data were collected and statistically analyzed. Results: There was no significant difference degrading the efficiency to remove fiber post using either techniques (p value: 0.47). Group A scored the shortest mean removal time (9.5 min) while group B scored the longest mean removal time (14.4 min). Regarding effectiveness no significant difference was found between or among groups either techniques (p value: 0.14). Group D scored the best mean scores (2.4) while group A and B scored the least mean scores (3.9). Regarding Score 6 (off-axis drilling), only group C recorded 2, and group D: 1. Conclusions: none of the techniques used was significantly effective or efficient in removing fiber post.