PURPOSE Thermoplastic materials, such as acetal (AC) and polyamide (PA), constitute an alternative to polymethyl methacrylate (PMMA) based resins as the materials for removable partial dentures. However, none of the previous studies compared chewing efficiency and occlusal forces in the wearers of dentures made of various materials. Therefore, the aim of this study was to determine and compare ...

BACKGROUND Chewing betel-nuts (Areca catechu) is carcinogenic but the risk for hepatocellular carcinoma (HCC) and liver cirrhosis (LC) is little considered. Worldwide 600 million people chew betel, including emigrants from palm-growing countries. OBJECTIVE We aimed to assess the relationships and dose-response effects of betel chewing on LC and HCC risks, since habit cessation could reduce th...

Chewing gum allergy is a rare condition in emergency settings. A 48-year-old man presented to the emergency department with generalised itchiness which was more prominent on the periorbital areas, nausea, vomiting, and dyspnoea after taking chewing gum. Vital signs showed hypotension with a blood pressure of 72/45 mmHg, and heart rate 95 beats per minute. Auscultation of the chest revealed diff...

Most adults and young alike are subject to anxiety and pressure and unfortunately, they react to this stress by becoming enslaved to regretful habits like paan, betel chewing with or without tobacco, smoking and alcoholism. These habits, though believed to alleviate tension to some extent, inevitably produce detrimental and addictive effects on the bodyespecially the oral cavity [1,2]. The fact...

Hearing problems such as hearing loss and susurrus aurium are said to improve with occlusal treatment, but few objective clinical reports have been published in the dental field. We looked at the effect of occlusal treatment and chewing instruction on hearing ability in five patients who had an occlusal disorder and the unilateral chewing habit. The following results were obtained: 1. Unilatera...

Wild passerine birds (Passeriformes) from the northeastern part of the Czech Republic were examined for ectoparasites during the pre-breeding period in 2007. Two species of fleas of the genera Ceratophyllus and Dasypsyllus (Siphonaptera: Ceratophyllidae), and 23 species of chewing lice belonging to the genera Ricinus, Myrsidea, Menacanthus (Phthiraptera: Menoponidae), Brueelia, Penenirmus, and ...

BACKGROUND The estimate of the number of people chewing Khat globally ranges from 5 to 10 million people. Its use may result in a variety of effects due to the different compounds in it with effects on the gastro-intestinal system and nervous system being the principal ones. AIM To assess the prevalence, factors, and effects of Khat chewing among students of a college in Gondar town, northwes...

STUDY OBJECTIVE The aim was to investigate risk factors for cancer of the buccal and labial mucosa in Kerala, southern India. DESIGN The investigation was a case-control study. SETTING Regional Cancer Centre, Trivandrum, Kerala, and local teaching hospitals. PARTICIPANTS Cases were all those registered with oral cancers at the Regional Cancer Centre during 1983 and 1984 (n = 414). Control...

BACKGROUND In some studies, gum-chewing was demonstrated to have a beneficial effect on resumption of bowel function; however, other contradictory findings in other studies refute the effects of gum-chewing on peristaltic movements and digestive system stimulation. In addition, most previous studies were after colorectal or gynecology surgery, whereas few reports focused on the effect of gum-ch...