(n.) The act or operation of masticating; chewing, as of food.
Example Sentences:
(1) The ratio of appearance on the fatigue by mastication was as follows: Type I (0%), Type II (50.0%), Type III (40.0-100%) and Type IV (75.0%).
(2) Masticated forages followed trends similar to those of nonmasticated forages, but the effect of mastication was not consistent.
(3) Other activated areas, not directly involved in mastication, were for example, the area postrema (55%), the olfactory (44%) and visual cortex (41%).
(4) When, against Real Madrid, Nani was sent off, Ferguson, jaws agape, interrupting his incessant mastication, roared from the bench, uprooting his assistant and marched to the touchline.
(5) Parapharyngeal space can be defined as a potential space surrounded by deglutitional and masticator muscles and their covering, superficial and middle layer of deep cervical fascia.
(6) Any method employed for the control of drooling must still allow a sufficient volume of flow for mastication, deglutition and oral hygiene.
(7) A discussion is given of the advantages, disadvantages, and pitfalls of computerized tomography of the masticator space.
(8) Bony union is now satisfactory 5 years after injuries and dentures have been recently fitted; speech is normal, the child's facial contours acceptable, and mastication has been satisfactory during this period.
(9) These patients demonstrated good mastication and an excellent incisal opening which was maintained in the late postoperative period.
(10) An artificial oral environment used in this study to simulate mastication also is described.
(11) All subjects displayed malocclusions and were examined for sensitivity of the muscles of mastication to palpation.
(12) New developments in the application of current imaging procedures (both conventional and "high tech") to diagnosis and management of diseases and injuries of the jaws, muscles of mastication, and salivary glands are presented.
(13) An unusual case presenting congenital malformations involving the face and mastication apparatus is described.
(14) The results suggest that canine-protected occlusions do not significantly alter muscle activity during mastication but significantly reduce muscle activity during parafunctional clenching.
(15) Therefore, it is of great significance for the study of prosthodontics to assess what distribution of mechanical strain the maxillar and mandibular bones exhibit to occlusal force at mastication.
(16) The presenting symptomatology in 9 cases of giant epulis seen in West Africa was constantly difficulties in mastication or even speech, and on some occasions tumefaction of the face.
(17) Activity occurred in the masseter and medial pterygoid muscles during the following movements; closing the jaw slowly either without occlusal contact or with occlusal contact and against resistance; free lateral movement to contralateral side, either against resistance or with occlusal contact; protraction of the jaw either without occlusal contact or with occlusal contact; swallowing either saliva or water; incisor gum chewing with either the ipsilateral or contralateral molars; normal mastication; and during forceful centric occlusion.
(18) In a simulated 1-year period of mastication, the results showed that nickel and beryllium metals were released both by dissolution and occlusal wear.
(19) Periods of the latin square included a minimum of 14 d for adaptation and 11 d for esophageal masticate collection and digesta sampling.
(20) In the triturating area the verticality of the interalveolar axis is necessary for the stability of the cusp-fossa relationship in centric occlusion and for the stability of the prothesis during mastication.
Regurgitation
Definition:
(n.) The act of flowing or pouring back by the orifice of entrance
(n.) the reversal of the natural direction in which the current or contents flow through a tube or cavity of the body.
(n.) The act of swallowing again; reabsorption.
Example Sentences:
(1) The 14-fold increase in prolonged apnea frequency immediately following regurgitation supports the hypothesis for a causal relationship between apnea and regurgitation.
(2) The pathoanatomy and factors associated with transient mitral regurgitation (MR) induced by myocardial ischemic stress are unknown.
(3) Postoperative examination revealed division of accessory pathway and no regurgitation of mitral prosthesis.
(4) Doppler mitral regurgitation (MR) was detected in 40 of the 47 patients (85%) with type C in 56 of the 99 (59%) with type B, and in seven of the 18 (39%) with type A.
(5) One child (case 1) exhibited nasal regurgitation during feeding.
(6) To determine the severity of regurgitation by dynamic MRI, several parameters were analyzed, including the number of slices with visible signal loss, the time course of the signal loss, and its maximal area and maximal volume.
(7) Without operative correction of the tricuspid valve, secondary tricuspid regurgitation can resolve following mitral valve surgery alone.
(8) Signs of mitral regurgitation of grade 1 could be documented angiographically in 9 patients and of grade 2 in 4 patients.
(9) Sixty-eight patients (mean age 49 years) were studied with contrast echocardiography (CE) and Doppler echocardiography (DE) to evaluate both methods for detecting and grading tricuspid regurgitation (TR).
(10) Case 2: A 40-year-old man with congestive heart failure and inflammatory signs had aortic and mitral regurgitation.
(11) Twelve patients had severe mitral regurgitation; successful mitral valve replacement was carried out in four patients (all with myxomatous mitral tissue).
(12) The sounds were loudest along the left sternal border, exhibited an increase in intensity during inspiration and were associated with right atrial gallop sounds and with murmurs of tricuspid regurgitation.
(13) Isolated tricuspid valve regurgitation is a rare finding after nonpenetrating chest trauma.
(14) Tricuspid regurgitation (TR) was diagnosed with Doppler when reverse flow in systole was recorded at and behind the closure level of the tricuspid valve.
(15) We conclude that in most patients undergoing aortic valvuloplasty, regurgitation does not change after the procedure.
(16) All patients presented with severe oropharyngeal dysphagia and frequent aspiration together with pharyngooral and pharyngonasal regurgitation.
(17) On a series of 170 aortic valve replacement - 100 aortic stenoses (AS) and 70 aortic regurgitations (AR) - with an early post operative death rate of 5.3% and a late one of 8% (with a minimum follow up of 1 year and an average one of 25.4 months, two electrocardiographic and radiological checks could be done on 123 patients, 12 months on an average after the operation, and again for 116 patients, 21 months after the operation.
(18) In all cases, the maximal velocity of the tricuspid regurgitation jet was measured by continuous wave Doppler ultrasound and the systolic pressure gradient between right ventricle and the right atrium was calculated by the modified Bernoulli equation.
(19) In a multivariate Cox model analysis, the independent correlates of long-term survival were emergent operation with cardiogenic shock (multivariate mortality rate ratio [RR] = 14.0), use of a postoperative intraaortic balloon pump (RR = 3.9), ejection fraction less than 50% (RR = 2.4), preoperative history of congestive heart failure (RR = 2.2), cardiopulmonary bypass time (RR = 1.4 for each 30-minute increment), uncorrected mitral regurgitation (RR = 1.5 for each increment of angiographic gradation), left main coronary artery narrowing (RR = 1.7) and diabetes (RR = 1.6).
(20) This report details the pulsed Doppler echocardiographic findings in two patients who developed severe periprosthetic mitral regurgitation after porcine mitral valve replacement.