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Helo Anna, “brwcsedd (eg); crensian (be) dannedd” sydd yn y Geiriadur Deintyddiaeth. Cofion gorau, Huw From: Discussion of Welsh language technical terminology and vocabulary [mailto:[log in to unmask]] On Behalf Of anna gruffydd Sent: 16 November 2012 11:09 To: [log in to unmask] Subject: bruxism Diffiniad Wikipedia:- Bruxism (from the Greek<http://en.wikipedia.org/wiki/Greek_language> βρυγμός (brygmós), "gnashing of teeth") is characterized by the grinding of the teeth and typically includes the clenching of the jaw. It is an oral parafunctional activity<http://en.wikipedia.org/wiki/Parafunctional_habit> that occurs in most humans at some time in their lives. In most people, bruxism is mild enough not to be a health problem.[1]<http://en.wikipedia.org/wiki/Bruxism#cite_note-1> While bruxism may be a diurnal<http://en.wikipedia.org/wiki/Diurnality> or nocturnal<http://en.wikipedia.org/wiki/Nocturnal> activity,[2]<http://en.wikipedia.org/wiki/Bruxism#cite_note-2> it is bruxism during sleep that causes the majority of health issues; it can even occur during short naps. Bruxism is one of the most common sleep disorders<http://en.wikipedia.org/wiki/Sleep_disorders>. Oes na derm cydnabyddedig? Os nad oes, oes na rywun am roi cynnig ar fathu un? Diolch Anna ________________________________ No virus found in this message. Checked by AVG - www.avg.com<http://www.avg.com> Version: 2012.0.2221 / Virus Database: 2441/5396 - Release Date: 11/15/12