Exercises and MT are safe and simple interventions that could potentially be beneficial for patients with TMD. No adverse events regarding exercise therapy and manual therapy have been reported.There have been positive results when using postural exercises and jaw exercises to treat both myogenous (muscular) and arthrogenous (articular) TMJ dysfunction. MT alone or in combination with exercises shows promising effects.It is necessary that trials be performed isolating the type of exercise and manual techniques to allow a better understanding of the effectiveness of this treatment. Additionally, details of exercise, dosage, and frequency as well as details on manual techniques should be reported to create reproducible results. High quality trails with larger sample sizes are needed.There is some evidence that some people who use nighttime biofeedback to reduce nighttime clenching experience a reduction in TMD. Occlusal adjustment
This is the adjustment or reorganizing of the existing occlusion, carried out in the belief that this will redistribute forces evenly across the dental arches or achieve a more favorable position of the condyles in the fossae, which is purported to lessen tooth wear, bruxism and TMD, but this is controversial. These techniques are sometimes termed "occlusal rehabilitation" or "occlusal equilibration". At its simplest, an occlusal adjustment involves selective grinding (with a dental drill) of the enamel of the occlusal surfaces of teeth, with the aim of allowing the upper teeth to fit with the lower teeth in a more harmonious way.
Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold (which is also caused by other viruses, predominantly rhinoviruses), while more lethal varieties can cause SARS, MERS and COVID-19. As of 2021, 45 species are registered as coronaviruses, whilst 11 diseases have been identified, as listed below. Coronaviruses are known for their shape resembling a stellar corona, such as that of the Sun visible during a total solar eclipse; corona is derived from the Latin word corōna, meaning garland, wreath, crown. It was coined by Tony Waterson (professor of virology at St Thomas Hospital) in a meeting with his colleagues June Almeida and David Tyrrell, the founding fathers of coronavirus studies, and was first used in a Nature article in 1968, with approval by the International Committee for the Nomenclature of Viruses three years later.The first coronavirus disease was discovered in the late 1920s, however, the most recent common ancestor of coronaviruses is estimated to have existed as recently as 8000 BCE. Human coronaviruses were discovered in the 1960s, through a variety of experiments in the United States and the United Kingdom. A common origin in human coronaviruses is bats. List
See also

Coronaviridae
Alphacoronavirus
Betacoronavirus
Gammacoronavirus
Deltacoronavirus
Novel coronavirus (nCoV)


== References ==