[A device for thermo-compressive formation of plastic foil for stomatological purposes]. / Prisposoblenie za termokompresivno oformiane na plastmasovo folio za stomatologichni tseli.

A device is proposed, by which bigger plastic details for stomatological purposes can be formed via high air pressure. For that purpose, a gas flow is led away to a special bell through an armoured rubber hose from the compressive installation of the somatological unit. The plastic foil is fixed by a clip-holder, adjusted also for work with basis-plaques. After the formation of the foil-matrix and its cooling, the air pressure is stopped. The device is prompted by the desire to facilitate the production of details necessary for the clinic, for the dental mechanic laboratory and for the stomatological research work. The device has been put into practice in the Stomatological Faculty, HMI, Plovdiv.

[Line of cutting edges of the upper teeth and its conformity with the contours of nose and lower lip while smiling]. / Liniia na rezheshtete rubove na gornite zube i suotvetstvieto y s konturite na nosa i ha dolnata ustna pri usmivka.

Observations were carried out--visual and via photos--of 180 subjects (83 males and 97 females) in order to establish the incidence of coincidence between the line of the cutting edges of the upper front teeth with the contours of the base of the nose and the lower lip while smiling. It has been established that the total configuration of the cutting edges is perceived visually as a curved wave-like line, whose arch, in the majority of the cases, does not correspond to the form of the nose but, most often, coincides with the contuour of the lower lip. Attaining of the mentioned harmonious conformity between those two linesis recommended in the working out of aesthetic prosthetic constructions.