Amphioxus can regenerate oral cirri,, specialized buccal structures involved in food particle capture, in a process that appears to mainly involve tissue remodelling (morphallaxis).
Tetrahymena rostrata resembles T. bergeri morphologically [ 15], but based on life cycle features and such morphological characters as the polar basal body complex and minor differences in the buccal structures, Lynn [ 16] recognized them as two different species.
The effect of chlorhexidine organoclay might be explained by the substantivity phenomenon of chlorhexidine, which could be described as its ability to bind to buccal mucosal structures [ 74, 75].
The clinical and radiographic examination showed healthy periodontal structures; the buccal wall was intact without fenestration with a minimal thickness of 1 mm; the discrepancy between the buccal height of the socket and the palatal height was not more than 3 mm; and the socket was within the bony envelope in all four cases.
Tertiary refinements were performed in the XZ (coronal) plane (Figure 3) to verify tooth anatomy and focus on the delineation of dental root structure from the buccal and palatal cortical plates.
Figure 7(a) shows the 3D structure of the buccal mucosa overlaid with the 3D mOMAG data (yellow).
To gain molecular insight into the structure of the buccal cavity, pharyngeal cuticle, and grinder, we performed a transcriptional profiling experiment in precisely staged molting and non-molting larvae.
The Ets-4 expression then appear to be restricted to the part of middle subesophageal mass, the external part of the optic lobes and paired structure aside the buccal mass at stage 22 and stage 25 in comparison to the brain atlass [ 23].
The morphological dataset was updated with new data about buccal cartilages and the fine structure of the cephalic tentacles, and the validity of previous polarization of some characters like the absence of the hypobranchial gland or the flexoglosste condition of the radula was questioned [ 34].
The two member genera, Anoplostoma and Chaetonema, were originally grouped together on the basis of buccal cavity and cephalic capsule structure; however, this study never recovered these two genera within a monophyletic group, despite both being consistently recovered within the superfamily Enoploidea.
