| The walls of the acini surround a small central cavity known as an alveolus. |
| The screws are placed into the alveolus without cutting or opening the gingival fibro mucosa in the course of the extraction session. |
| Within the oral cavity, the upper alveolus and hard palate are frequent sites. |
| The excellent drainage along each alveolus allows the realization of porous turfed surfaces. |
| The teeth all are present and entire except that p2 on the right side is missing from its alveolus. |
| Avulsion refers to the injury in which the tooth is totally displaced from its alveolus. |
