Parafunctional activity crew. Parafunctional activity A para-functional habit or parafunctional habit is the habitual exercise of a body part in a way that is other than the most common use of that body part. The term is most commonly used by dentists, orthodontists, or maxillofacial specialists to refer to para-functional uses of the mouth, tongue and jaw. Oral para-functional habits may include bruxism (tooth-clenching and/or grinding), tongue tension ("tongue thrusting"), fingernail biting, pencil or pen chewing, mouth breathing, and any other habitual use of the mouth unrelated to eating, drinking, or speaking. Crenated tongue is a descriptive term for when scalloping develops
United Grinding North America MIKROSA. Cylindrical grinding is a process that forms the outside of an object. Common applications are cylinders, an ellipse, a cam or crankshaft. STUDER manufactures internal and external cylindrical grinders for small and mid-sized workpieces. The brand consists of more than twenty different machines ranging from standard machines to complex system solutions for tool and die makers, the automotive and aerospace industry, pneumatics/hydraulics, electronics/electrical engineering, medical technology, the watch industry and job order production. SCHAUDT supplies solutions for cylindrical grinding, noncircular grinding and universal grinding between centers. Common applications are grinding camshafts, crankshafts or gear shafts in the automotive industry