Fig. 3From: A self-adjusting head holder without ear-bars for guinea pigsSpatial relationships between incisors and maxillary masticators. α The angle between the plane of teeth fixation by the mouthpiece and the plane of the arrangement of the tips of maxillary masticators. 1 Incisors; 2 premolars; 3 molars. Scale bar = 10 mmBack to article page