(n.) That on or against which a body abuts or presses
(n.) The solid part of a pier or wall, etc., which receives the thrust or lateral pressure of an arch, vault, or strut.
(n.) A fixed point or surface from which resistance or reaction is obtained, as the cylinder head of a steam engine, the fulcrum of a lever, etc.
(n.) In breech-loading firearms, the block behind the barrel which receives the pressure due to recoil.
Example Sentences:
(1) One abutment was used to evaluate each of nine oral hygiene instrumentation methods used for specified lengths of time or instrument strokes.
(2) During the study period, it was possible to maintain mean plaque index scores of 0.40 to 0.70 and mean gingival index scores of 0.90 to 0.98 adjacent to the abutments.
(3) Supragingival plaque samples from selected surfaces of two abutment teeth were taken at one week, and at one, three, and six months after initial insertion of the overdenture.
(4) The second technique is the fabrication of a cast post and core restoration that fits an abutment root as well as the existing crown of a four-unit fixed restoration.
(5) This technique allows an accurate cast to be made of a prepared abutment tooth with the removable partial denture in place in the mouth.
(6) The clinical results shown that, after twelve years of experience, the stress breaker framework allows the preservation of the abutments as well as the conservation of osseo-mucous tissues (no need of rebase).
(7) Capillaries and small arterioles or venules, ranging from 8-50 microns in diameter, showed perikarya and dendrites abutting the basement membrane without evidence of glial interposition.
(8) Complications that resulted in catheter malfunction included deposition of fibrin around the catheter tip (formation of a fibrin sheath) in 44 (57%) instances, a constricting suture in six, abutment of the catheter tip against the venous wall in eight, catheter leak in two, and migration of the catheter completely out of the vein in three.
(9) Two of these were used as abutments for partial dentures.
(10) All vessels were found in the typical retroesophageal location, abutting the esophagus from the vertebral C-7 to T-3 levels.
(11) Twenty-five extracted caries-free anterior teeth from patients aged 50-70 were prepared as overdenture abutments.
(12) 2 implants in the lower jaw showed some mobility at the abutment installation and were removed immediately.
(13) The abutment teeth next to the modification spaces were moderately restored with MOD or class II restorations on most of the teeth.
(14) The abutment tooth is then prepared, providing adequate clearance between the clasp assembly and the tooth preparation.
(15) The index improves visibility of the tooth and abutment cylinder relationship permitting the optimization of framework dimensions and contour.
(16) Self-curing resins enable the operator to prepare directly temporary prosthesis on single crown abutments.
(17) The avoidance of lateral forces on overdenture retainers is essential to prevent pathological change in the supporting tissues of the root abutment.
(18) In each hemicerebellum there is one zebrin II+ band abutting the midline (P1+), and two others laterally in the vermis (P2+, P3+).
(19) It was formed by electrolytic etching directly after the bonding surface of metal retainer was abraded, preparation of the axial grooves in the edentulous proximal surfaces of abutments, drying with compressed air and drying agent after enamel was acid etched and washed, bonding area was about 49 mm2 in each retainer and without using opaque agent between bonding agent and resin.
(20) In the implant fixed partial denture, stresses induced in the surrounding bone became higher around the posterior abutment and became lower around the premolar retainer than the stresses produced with the natural tooth fixed partial denture.
Fulcrum
Definition:
(n.) A prop or support.
(n.) That by which a lever is sustained, or about which it turns in lifting or moving a body.
(n.) An accessory organ such as a tendril, stipule, spine, and the like.
(n.) The horny inferior surface of the lingua of certain insects.
(n.) One of the small, spiniform scales found on the front edge of the dorsal and caudal fins of many ganoid fishes.
(n.) The connective tissue supporting the framework of the retina of the eye.
Example Sentences:
(1) It is now a well-known fact that the human body is able to use luminous stimulation for aims other than sight; the pineal gland, though no longer directly sensitive to light as in lower animals, is nevertheless the fulcrum of a complex neuro-endocrine system which makes an interaction between light and the human body possible by means of the production of a number of substances of which melatonin is the most widely investigated.
(2) These results are consistent with the interpretation of DF as a zero reference point or fulcrum about which accommodative effort varies.
(3) The letter identified a single point, OcC point (Cervera's occlusal point), as the primary fulcrum from which to perform a correct cephalometric superimposition in order to examine the patient's anticipated growth.
(4) Mayor Rahm Emanuel, the former top adviser to Barack Obama suddenly facing a runoff for re-election, remained at the political fulcrum of a mounting campaign both on social media and the streets of Chicago, where demonstrations were planned for Saturday outside what coordinated campaigners described as mirroring a CIA “black site”.
(5) Two details distinguish this incision from other sutureless closures: the fulcrum in the crotch of the V provides easier access to the anterior chamber for instrument manipulation, and the termination of the scleral tunnel entry posterior to the cornea lessens the likelihood of corneal folds that may interfere with visualization during surgery.
(6) Their firm attachment to the ciliary epithelium and the great number of intercellular junctions known as mechanical structures lend further support to our concept that these structures function as a fulcrum in the process of accommodation.
(7) In case of occlusion, the mandible is elevated by the muscles of mastication with T. M. J. as the fulcrum point, and at this time, the masticatory force concentrated mainly on the dental arch is absorbed into the jaw bone through the periodontal tissues.
(8) The movements and the fulcrums of the prosthesis were changed by the presence of simulated retained roots posterior to the distal abutment.
(9) 10.25pm BST 56 mins Diskerud has done well to be a fulcrum of US attacking play in this half, and Donovan has drifted out to the right to find some space to run at the defense.
(10) The nitrogen of an allylic amine can serve as the fulcrum for stereocontrolled delivery of oxygen to an adjacent trigonal site, and cis-hydroxyamino sugars can thus be prepared.
(11) The shelf attachment to the main maxillary process is progressively undercut by epithelial invagination, producing a fulcrum for shelf elevation.
(12) Standing permanently on guard at the fulcrum of competing privatised arms of the state, armed with his suitcase of his rivals' commercial secrets, is a more tedious occupation.
(13) This is to be avoided because much larger levator resections are required when this ligament's support to the upper lid and the fulcrum effect for the levator are lost.
(14) Due to the superior displacement characteristics of the TMJ, the condyle does not act as the fulcrum in mandibular kinetics.
(15) However, Scholes believes it is the system, rather than the man preferred as the fulcrum of United’s attack, that is flawed.
(16) Rallying supporters at a phone bank on the eve of voting on Monday, Gardner, a congressman, called Colorado the “tip of the spear, the fulcrum of power”.
(17) The instrument differentiated between lateral and rotational parietal bone movements around the fulcrum of the suture.
(18) "Someone has to do it and the ideal would be that you chose the discrete broadcaster of a devolved nation at the fulcrum of the issue," Woodward said.
(19) It was his personality that made Heidelberg a fulcrum of a growing new scientific self-assurance that had no precedent in clinical psychiatry which no longer needed the disciplines of neuropathology and neurophysiology as pillars of support to gain recognition among the experts.
(20) Now the US build a little more inventively with Altidore as the fulcrum and ultimately the intended target of a Johnson cross.