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Image C header Appearance of normal cheek teeth with points and ridges
This image shows the right side of the oral cavity of an anaesthetised rabbit. The mouth is held open with a gag and cheek dilators. The tongue has been pushed to one side with a pair of curved scissors. A reflection of the teeth is mirrored on the scissors. The appearance of the cheek teeth can be seen. The enamel ridges that run across the centre of each cheek tooth form a series of vertical points alongside the tongue. These are normal. The teeth are all the same height, so the zigzag occlusal pattern is regular. The brown staining is from plant pigments.
Located in Media / / ANATOMY / DENTITION
Image Pascal source code Incisor pulp cavities
This photograph shows healthy upper and lower incisors taken from the skull of a wild rabbit. They have been sectioned longitudinally to show the shape and extent of their pulp cavity.
Located in Media / / ANATOMY / DENTITION
Image Innervation and formation of new dental tissue in a mandibular cheek tooth
Each mandibular tooth contains two vertically aligned laminae. For most of the length of each lamina, the dentine encloses a pulp chamber that tapers towards the occlusal end of the tooth. At the apical end the two pulp chambers converge. Dental tissue starts to be formed at the apex of the tooth and becomes thicker as it moves towards the occlusal end. Ameloblasts produce enamel. The odontogenic organ forms pre-odontoblasts that mature into odontoblasts that form tubular dentine. The tubules contain nerve fibres but near the occlusal end of the tooth the odontoblasts appear to transform into postodontoblasts that deposit atubular tissue. The image is modified from drawing by Bishop (1995).
Located in Media / / ANATOMY / DENTITION
Image C header Occlusal surfaces of the mandibular cheek teeth (labelled)
The occlusal surfaces of the cheek teeth show the enamel ridges forming blade like structures across the occlusal surfaces of the teeth. The indentation between each enamel ridge corresponds to the shape of the occlusal surface of the opposing tooth. Each enamel ridge occludes with the enamel edges of the opposing teeth, which makes the cheek effective in shearing through vegetation.
Located in Media / / ANATOMY / DENTITION
Image text/texmacs Occlusal surfaces of the mandibular cheek teeth
This photograph shows a hemimandible from a wild rabbit. The hemimandible has been tipped slightly to show the regular points that are present on the lingual aspect of the lower cheek teeth. These are normal. They don't need to be removed although they will quickly grow back in a rabbit with healthy cheek teeth. The points are different from the lingually directed spurs that develop on pathologically curved teeth.
Located in Media / / ANATOMY / DENTITION
Image Relationship of nasolacrimal duct with apex of large upper incisor (labelled)
This skull is from a wild rabbit. Part of the bony canal that encloses the nasolacrimal duct has been removed to expose the duct within it. The duct bends medially at the apex of the large upper incisor. Only a small amount of apical elongation would compress the duct at that point.
Located in Media / / ANATOMY / DENTITION
Image Transverse section through the skull (labelled)
This skull has been sectioned at the level of the premolars. It shows the position of the nasolacrimal duct (NLD) and the relationship of the apex of the first upper cheek tooth with the maxillary sinus. It also shows the normal occlusal relationship of the cheek teeth with the lingual edges of the maxillary teeth resting against the buccal edges of the mandibular teeth.
Located in Media / / ANATOMY / DENTITION
Image JPEG image Transverse section through hemimandible at level of cheek tooth
This image shows the slightly curved natural shape of the cheek teeth and the conical pulp cavity. The bony canal that encloses the mandibular nerve is evident at the apex of the tooth (arrow).
Located in Media / / ANATOMY / DENTITION