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Apical constriction mechanisms (red: filamentous actin. orange: myosin.) Apical constriction occurs primarily through the contraction of cytoskeletal elements. The specific mechanism depends on the species, the cell type, and the morphogenetic movement. Model organisms that have been studied include the frog Xenopus, and the fly Drosophila.
The presence of an apical delta may make successful endodontic treatment less likely. The root tip is removed during apicoectomy to eliminate the apical delta and maximise the chance of successful healing. [1] An apical constriction is often present. In immature teeth the root is not fully formed, leading to an open apex. This is also seen in ...
The C-Fibres typically terminate in the pulp tissue proper, either as free nerve endings or as branches around blood vessels. Sensory nerve fibers that originate from inferior and superior alveolar nerves innervate the odontoblastic layer of the pulp cavity. These nerves enter the tooth through the apical foramen as myelinated nerve bundles.
Apical foramen, the opening at the tip of the root of a tooth; Foramen ovale (heart), an opening between the venous and arterial sides of the fetal heart; Foramen transversarium, one of a pair of openings in each cervical vertebra, in which the vertebral artery travels; Greater sciatic foramen, a major foramen of the pelvis
On the apex, there is an opening called Apical foramen. That is the place where all the blood vessels and nerves come inside the tooth. The apex is located on the tip of the root, or on the pointed end of it. Different teeth have a different number of roots. For example, the incisors have only one root and one apex. Teeth that have two roots ...
An electronic apex locator is an electronic device used in endodontics to determine the position of the apical constriction and thus determine the length of the root canal space. The apex of the root has a specific resistance to electrical current, and this is measured using a pair of electrodes typically hooked into the lip and attached to an ...
1. Physical Sealing - After Biofilling, the watertight apical plug is formed at the apical constriction of the apical foramen. Triple MTA sealing (apical, middle, and coronal) is achieved by the jamming effect. Physical sealing occurs just after Biofilling. Formation of the apical plug can prevent the apical percolation of nutrient tissue fluid.
The periodontium (from Greek περί (peri-) 'around' and -odont 'tooth') is the specialized tissues that both surround and support the teeth, maintaining them in the maxillary and mandibular bones.