The metal helps strengthen the ceramic but the outer porcelain base can still break. These crowns also have to be prepared in a lab. Average Cost: $1,093 per crown (without insurance) Crowns For Baby Teeth: Stainless steel crowns or caps are used to protect
The element was first discovered from the spectrum of the sun so it was named after the Sun Helios. Helium is name is derived from the Greek name Helios-personification of t â¦ he Sun in mythology.
Full Definition of HELIUM. : a light colorless inert gaseous element found especially in natural gases and used chiefly for inflating airships and balloons, in lamps, in cryogenic research, and as a component of inert atmospheres (as in welding) â see element table.edical Definition of HELIUM. : a light colorless nonflammable gaseous element found especially in natural gases and used chiefly for inflating airships and balloons, for filling incandescent lamps, and for cryogenic researchâsymbol He; see element table.