(2015), proposed that secondary dentin deposition directly caused a reduction in
pulp cavity volume, and confirmed that the
pulp cavity volume chosen as the research index was more scientific and reliable than the choice of PV/TV ratio.
The coronal
pulp cavity index: A forensic tool for age determination in human adults.
After that, restorative materials closing the access to the
pulp cavity should be removed.
"We want to set up a
pulp cavity stem cell bank with the help of the presidential office's department for technology to be used for producing teeth and materials similar to it," the dean of Shahid Beheshti University's Dentistry Faculty said in Tehran on Tuesday.
2), anterior area of spine consists of a thick layer of trabecular tissue with vascular canals; a thin layer of trabecular tissue with vascular canals present on posterior and posterolateral area; a thin layer of lamellar tissue lacking vascular canals present on lateral area of spine; and large subovate
pulp cavity present in central region of spine.
ASensitive teeth are caused by an exposure of the toothOs dentine, the hard, bone-like material between the central
pulp cavity and the enamel.
Cut in cross section, dorsal spines exhibit a series of rings surrounding a central
pulp cavity. Like other sharks--whose growth rings appear in their vertebrae--the pups of at least one dogfish species are born with a single growth ring, and new ones are layed down each year.
Medium-sized (measured length 9.2-19.5 cm) fusiform thelodonts; paired pectoral and ventral (= pelvic?) fins; single dorsal fin; hypocercal caudal fin, caudal fin "rays" absent; orbits on anterolateral corners of head surrounded by 2-3 rows of specialized, conical, high scales; scales of fin origin compact, relatively large; trunk scales with one median and up to eight posterior or posterolateral spines on crown;
pulp cavity relatively large, shallow to deep; one median (= main) and up to eight lateral pulp canals corresponding to number of spines; dentine canals and tubules narrow, sinuous, branched.
1) "Gemination" may produce a tooth with a bifid crown and a single
pulp cavity. This is believed to result from the partial division of a single tooth bud.
A number of methods are used to assess the anatomic configuration of the
pulp cavity, such as radiographic studies (Kulild & Peters, 1990); tooth cutting (Weine et al., 2012), which contributes but does not allow a three-dimensional view of this cavity; tooth cutting in series (Kulild & Peters), used in microscopic studies; metallic preparation, which do not allow the assessment of all the ramifications of the root canal; and diaphonization, which turns the tooth transparent, preserves its original anatomic form and allows a three-dimensional view of the tooth (Gilles & Reader, 1990, Rehman et al., 2015).