Background: The study investigated the fracture resistance of root-filled maxillary premolars with class II cavities restored by different restorations. Methods: A total of 55 intact maxillary ...

Mice have four incisors, two maxillary (upper) incisors, and two mandibular (lower) incisors. Canine teeth and anterior premolars are absent—the toothless space between the incisors and molar ...