Bruxism unaccompanied by mandibular movements."A movement disorder of the masticatory system characterized by teeth-grinding and clenching during sleep as well as wakefulness." "Non-functional contact of the mandibular and maxillary teeth resulting in clenching or tooth grinding due to repetitive, unconscious contraction of the masseter and temporalis muscles." "Parafunctional grinding of teeth or an oral habit consisting of involuntary rhythmic or spasmodic non-functional gnashing, grinding or clenching of teeth in other than chewing movements of the mandible which may lead to occlusal trauma." "Periodic repetitive clenching or rhythmic forceful grinding of the teeth." Bruxism can be subdivided into two types based upon
Involuntary servitude Involuntary servitude Involuntary servitude or involuntary slavery is a United States legal and constitutional term for a person laboring against that person's will to benefit another, under some form of coercion other than the worker's financial needs. While laboring to benefit another occurs also in the condition of slavery, involuntary servitude does not necessarily connote the complete lack of freedom experienced in chattel slavery; involuntary servitude may also refer to other forms of unfree labor. Involuntary servitude is not dependent upon compensation or its amount. The Thirteenth Amendment to the United States Constitution makes involuntary servitude illegal under any U.S.