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304 PATHOLOGY OF THE HARD TISSUES OF THE TEETH.
Separator. An instrumeut or mechanical appliance designed for forcibly sep-
arating teeth for obtaining space between proximal surfaces for examinations, exca-
vation of cavities, finishing fillings, etc.
Sepsin. a soluble poison (ptomain) present in putrid blood, flesh, or in proteid
compounds.
Sepsis. Poisoning of the system by the introduction of sepsin into the blood.
Septal gingivae. That portion of the gingivae in the interproximal space.
Septal space. That portion of the interproximal space normally filled by the
interproximal gmu septum, or the septal tissue.
Septic. Pertaining to poisonous matter produced by microorganisms; espe-
cially in connection with persistent pus formation.
Septum. (PI. Septa.) A partition; that portion of the alveolar process which
lies between the roots of the teeth separating their alveoli. See Gum Septums.
Serumal. Pertaining to the serum of the blood. Derived from serum. Serumal
calculus: Calculus on the roots of teeth derived from the blood.
Sets of line angles. First set: The line angles formed by the junction of the
surrounding walls of cavities with each other; as, buceo-distal angle, linguo-gingival
angle. See Figure 4, Vol. 2. Second set: The line angles formed by the junction
of the surrounding walls of a cavity with (a) the pulpal wall in occlusal cavities;
as pulpo-buccal angle; (b) the axial wall in axial cavities; as, axio-buccal angle,
in a mesial or a distal cavity.
Side instruments. Such instruments as may be introduced into any regular set,
but which do not follow the regular order of the nomenclature of the other instru-
ments in the set.
Sinus. [L.] An opening; a hollow; a bending. An abnormal opening from an
abnormal cavity to the surface, for the discharge of an abnormal secretion. See
note following definition of fistula.
"In pathology, a narrow passage leading to an abscess or other diseased locality;
a fistula." Century Dictionary.
"(Surgery.) A long, narrow, hollow tract leading from some abscess, etc."
Dunglison. Worcester.
" (Medical.) A narrow, elongated cavity, in which pus is collected; an elongated
'
abscess with only a small orifice. ' Webster.
"(Surgery.) Any long, narrow opening leading to an abscess or to a diseased
structure." Standard Dictionary.
' ' A long, narrow pathological canal communicating with an abscess or a diseased
' Foster 's Medical Dictionary.
tract. '
"An abnormal pathway or canal, usually the result of ulceration." Gould.
"Pathologically, sinus means a narrow tract of variable length, leading from a
chronic abscess to a free surface. ' ' Quain.
Smooth-surface cavity. A cavity formed by caries beginning in any smooth
surface of a tooth, or portion of a surface free from pits or fissures. The term is
confined to cavities beginning in the axial surfaces of the teeth.
Specials, as applied to cutting instruments. Such instruments as are designed
for doing special things in the preparation of cavities, as enamel hatchets, spoons, etc.
Split teeth. Teeth sawed through and the cut surfaces polished for showing
the penetration of caries of enamel and dentin.
Spbue. a piece of wood or metal used by a molder in casting metals, to form
the ingate for the molten metal; used to form the passage or ingate for making an
inlay of cast metal, gold, etc. Invested as attached to the wax model of an inlay
' '
and dravra out when the investment is ' set.
Sterile. Not containing microorganisms; aseptic.
Sterilization. The process of freeing a substance from microorganisms and
their spores.
304 PATHOLOGY OF THE HARD TISSUES OF THE TEETH.
Separator. An instrumeut or mechanical appliance designed for forcibly sep-
arating teeth for obtaining space between proximal surfaces for examinations, exca-
vation of cavities, finishing fillings, etc.
Sepsin. a soluble poison (ptomain) present in putrid blood, flesh, or in proteid
compounds.
Sepsis. Poisoning of the system by the introduction of sepsin into the blood.
Septal gingivae. That portion of the gingivae in the interproximal space.
Septal space. That portion of the interproximal space normally filled by the
interproximal gmu septum, or the septal tissue.
Septic. Pertaining to poisonous matter produced by microorganisms; espe-
cially in connection with persistent pus formation.
Septum. (PI. Septa.) A partition; that portion of the alveolar process which
lies between the roots of the teeth separating their alveoli. See Gum Septums.
Serumal. Pertaining to the serum of the blood. Derived from serum. Serumal
calculus: Calculus on the roots of teeth derived from the blood.
Sets of line angles. First set: The line angles formed by the junction of the
surrounding walls of cavities with each other; as, buceo-distal angle, linguo-gingival
angle. See Figure 4, Vol. 2. Second set: The line angles formed by the junction
of the surrounding walls of a cavity with (a) the pulpal wall in occlusal cavities;
as pulpo-buccal angle; (b) the axial wall in axial cavities; as, axio-buccal angle,
in a mesial or a distal cavity.
Side instruments. Such instruments as may be introduced into any regular set,
but which do not follow the regular order of the nomenclature of the other instru-
ments in the set.
Sinus. [L.] An opening; a hollow; a bending. An abnormal opening from an
abnormal cavity to the surface, for the discharge of an abnormal secretion. See
note following definition of fistula.
"In pathology, a narrow passage leading to an abscess or other diseased locality;
a fistula." Century Dictionary.
"(Surgery.) A long, narrow, hollow tract leading from some abscess, etc."
Dunglison. Worcester.
" (Medical.) A narrow, elongated cavity, in which pus is collected; an elongated
'
abscess with only a small orifice. ' Webster.
"(Surgery.) Any long, narrow opening leading to an abscess or to a diseased
structure." Standard Dictionary.
' ' A long, narrow pathological canal communicating with an abscess or a diseased
' Foster 's Medical Dictionary.
tract. '
"An abnormal pathway or canal, usually the result of ulceration." Gould.
"Pathologically, sinus means a narrow tract of variable length, leading from a
chronic abscess to a free surface. ' ' Quain.
Smooth-surface cavity. A cavity formed by caries beginning in any smooth
surface of a tooth, or portion of a surface free from pits or fissures. The term is
confined to cavities beginning in the axial surfaces of the teeth.
Specials, as applied to cutting instruments. Such instruments as are designed
for doing special things in the preparation of cavities, as enamel hatchets, spoons, etc.
Split teeth. Teeth sawed through and the cut surfaces polished for showing
the penetration of caries of enamel and dentin.
Spbue. a piece of wood or metal used by a molder in casting metals, to form
the ingate for the molten metal; used to form the passage or ingate for making an
inlay of cast metal, gold, etc. Invested as attached to the wax model of an inlay
' '
and dravra out when the investment is ' set.
Sterile. Not containing microorganisms; aseptic.
Sterilization. The process of freeing a substance from microorganisms and
their spores.
