BACKGROUND The purpose of this study was to determine the effect of three chewing gums and paraffin on the remineralization and the hardness of demineralized enamel. MATERIALS AND METHODS A total of 12 subjects wore intraoral palatal appliances with two demineralized bovine enamel slabs. The study consisted of four experimental periods each lasting 21-days, during which subjects were assigned...

RATIONALE Recent research suggests that chewing gum may increase alertness and lead to changes in cognitive performance. The present study examined effects of chewing gum on these functions within the context of a single study. OBJECTIVES This study had four main aims. The first was to examine whether chewing gum improved learning and memory of information in a story. The second aim was to de...

The influences of experimental balancing-side interference on the jaw function were investigated on 6 subjects. A specially designed onlay was fabricated for the lower second molar, which acted as an artificial balancing-side interference in the lateral mandibular position. The subjects were asked to do maximum clenching, lateral gliding and gum chewing with and without the device. Electromyogr...

OBJECTIVES The finding that chewing gum can moderate state anxiety under conditions of acute stress has proved difficult to replicate. The present study examines the extent to which chewing gum can moderate state anxiety under conditions of acute social stress. METHOD In a between-participants design, 36 participants completed a task comprising a mock job interview (a variation on the Trier S...

INTRODUCTION The objective of this study was to evaluate and compare the electromyographic (EMG) activity of the orbicularis oris--lower fascicle (LOO) muscle and the mentalis muscle (MT)--in predominantly nose-breathing (PNB) and mouth-breathing (PMB) subjects. METHODS Thirty-four subjects, 22 PNB and 12 PMB, with Class II Division 1 malocclusions were evaluated in 2001 (T1) and again in 200...

objective: the use of sugar-free chewing gums has been reported to be highly effective in the prevention of dental caries. this study carried out to compare the effect of mastic gum and a xylitol chewing gum on remineralization of caries-like lesions. materials and methods: in this cross-over, single blinded, in situ study, first, artificial caries-like lesions were created in six extracted hum...

background and objectives: postoperative ileus is common after abdominal resection. it causes gas store,distention, nausea, vomiting, and even pain. this study examines the impact of gum chewing as a type of sham feeding on the duration of postoperative ileus. methods: in this randomized control trial study, 70 patients in two groups (each group n=35) underwent abdominal resection. the a group ...

The current series of experiments investigated the effects of the timing of gum chewing on cognitive function, by administering a battery of cognitive tasks to participants who chewed gum either prior to or throughout testing, and comparing their performance to that of controls who did not chew gum. Chewing gum was associated with performance advantages on multiple measures when gum was chewed ...

Background: Khat is a large green shrub that grows at high altitude in the region extending from eastern to southern Africa, as well as on the Arabian Peninsula. Khat is widely consumed among the youth of Ethiopia; especially among high school, College and University students. Khat chewing is the risk of frequently absenteeism from class and poor academic performance of the students. Moreover, ...