U.S. patent number 3,897,795 [Application Number 05/383,888] was granted by the patent office on 1975-08-05 for dental floss and method of making same.
This patent grant is currently assigned to Centrix, Inc.. Invention is credited to Walter H. Engel.
United States Patent |
3,897,795 |
Engel |
August 5, 1975 |
Dental floss and method of making same
Abstract
This disclosure is directed to an improved dental floss in which
the fibers making up the floss are bonded or coated with a soap or
detergent binder in which various therapeutic and/or dental grade
polishing agents can be simultaneously bonded or impregnated to the
floss fibers.
Inventors: |
Engel; Walter H. (Southport,
CT) |
Assignee: |
Centrix, Inc. (Fairfield,
CT)
|
Family
ID: |
23515152 |
Appl.
No.: |
05/383,888 |
Filed: |
July 30, 1973 |
Current U.S.
Class: |
132/321 |
Current CPC
Class: |
A61C
15/041 (20130101) |
Current International
Class: |
A61C
15/04 (20060101); A61C 15/00 (20060101); A61c
015/00 () |
Field of
Search: |
;132/89,90,91,92,93
;424/93 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: McNeill; G. E.
Attorney, Agent or Firm: Fattibene; Arthur T.
Claims
What is claimed is:
1. A dental floss comprising:
a plurality of fibers,
a readily salvia soluble binder comprising a detergent and a dental
hygienic substance dispersed along the fibers and adhered thereto
by said detergent binder whereby said binder reduces the surface
tension of said salvia to permit said hygienic substance to more
effectively act on one's teeth.
2. A dental floss as defined in claim 1 and including a stanous
fluoride dispersed in the detergent binder along the fibers.
3. A dental floss defined in claim 1 and including a flavoring
essential oil impregnated into the binder.
4. The invention as defined in claim 1 wherein said dental hygienic
substance comprises a polishing agent.
5. The invention as defined in claim 4 wherein said polishing agent
is zirconium silicate.
6. The invention as defined in claim 1 wherein said binder includes
a sodium based soap.
7. The invention as defined in claim 1 wherein said binder includes
a potassium based soap.
8. The invention as defined in claim 1 wherein said binder includes
a soap.
9. The invention as defined in claim 1 wherein said detergent
comprises sulphonated fatty alcohols and carbonates, phosphates,
and silicates.
10. A dental floss comprising a plurality of floss fibers and a
binder for said fibers,
said binder comprising a soap,
and a dental grade polishing agent disposed in said soap and bonded
to said floss fibers by said detergent binder.
11. The invention as defined in claim 10 and including a dental
grade fluoride.
Description
PROBLEM AND PRIOR ART
Research has indicated that tooth decay and dental disease is
readily attributed to bacterial action resulting from the formation
of plaque about the teeth and/or to the entrapment of food
particles between the teeth and interstices formed therebetween.
Conventional care of teeth by brushing has been found to be an
inadequate means for effecting the removal of entrapped food
particles from certain crevices which may exist between teeth in
certain instances and/or to effectively remove the plaque by which
bacteria adheres to the teeth. To supplement conventional brushing,
resort has been frequently made to the use of a dental floss which
is rendered more effective than brushing in removing plaque and/or
the stubbornly entrapped food particles from crevices which are
otherwise inaccessible to ordinary brushing.
Most of the prior known dental flosses comprise essentially of
fibers bonded by a wax coating, as for example a beeswax, petroleum
wax or the like. However, research has shown that the wax with
which such dental flosses have been coated form a media which is
generally conducive to bacteria growth and development. While such
flosses effectively remove entrapped food particles, portions of
the wax coating invariably remain in the crevices to provide the
food requirements for bacterial action, and thereby frequently
nullify the effectiveness thereof.
With floss coated with natural or synthetic waxes hereto fore
known, it was not known to incorporate therein any therapeutically
or bacteriologically active matter. This was because the wax
coatings generally resisted or repelled water and provided an
indifferent binder for solids. For this reason the commercially
available flosses were limited in use and function to the removal
of food particles by the mechanical action limited solely to the
action of the floss fibers on the teeth.
OBJECTS
An object of this invention is to provide an improved dental floss
having a coating or binder of soap and/or detergent.
Another object of this invention is to provide an improved dental
floss having a coating or binder of soap and/or detergent by which
a polishing agent or other therapeutical material can be bonded to
the fibers of the floss and which can be readily released upon use
of the floss to effect the additional therapeutical effect on the
teeth or the mouth.
BRIEF SUMMARY OF THE INVENTION
The foregoing objects and other features and advantages are
attained by a dental floss formed of a plurality of fibers, as for
example, nylon or the like, which are coated or bonded by a coating
or binder of a soap and/or detergent. In accordance with this
invention the coating of soap and/or detergent functions as a
carrier by which one or more therapeutic ingredients can be bonded
to the floss fibers to enhance the removal of plaque and/or
entrapped food particles from the interstices or crevices otherwise
rendered inaccessible by ordinary brushing. The improved floss can
be readily made first by forming a paste of soap or detergent or a
mixture thereof into which various therapeutic ingredients are
dispersed. The various therapeutic ingredients which may be
incorporated in the paste include various dental grade polishing
agents, as for example zirconium silicate, pumice stone, stanous
oxide and the like, various dental grade fluorides, essential oils,
thymols and phenols, chlorinated phenols and other like substances.
The paste can readily be applied to the floss fibers simply by
passing the floss fibers through the paste mix and removing the
surplus therefrom.
FEATURES
A feature of this invention resides in the provision of a dental
floss having a coating or binder of soap and/or detergent by which
various therapeutic agents can be simultaneously bonded to the
floss fiber to enhance oral hygiene.
Another feature of this invention is to provide a dental floss with
a polishing agent bonded to the floss fibers by a layer or coating
of a soap and/or detergent which when wetted by saliva causes the
surface tension of the saliva to be reduced, and permits the
polishing agent or therapeutic agent to more effectively remove the
plaque and cleans the spaces between the teeth for maximum oral
hygiene.
Other features and advantages will become more readily apparent
when considered in view of the drawings and specification in
which:
In the drawings:
FIG. 1 is an enlarged view of a dental floss strand embodying the
present invention.
FIG. 2 is a sectional view taken along line 2--2 of FIG. 1.
DETAILED DESCRIPTION
This invention contemplates coating or binding the fibers 10 of a
dental floss with a coating or bonding material 11 incorporating
dental grade therapeutically and/or bacteriologically active agents
12 where such agents can be readily releasably bonded to the floss
fibers. The coating material or binder 11 for the floss fibers 10
comprises a soap and/or detergent. As most soaps and detergents are
solids they have sufficient tensile strength to bind the
therapeutic substances, as will be hereinafter described, to the
fibers of the dental floss; and yet impart to the material or
fibers 10 a flaccidity to form an acceptable surface, as for
example, an essentially uninterrupted sufficiently thin flexible
film or coating formed along the fibers. All the soaps and/or
detergents, in so far as they are capable of solidifying, can be
used. However, the sodium based soaps are preferable to the
potassium based soaps. Also a mixture of soap and detergent works
most satisfactorily.
The solid detergents may be further defined as a complex organic
substance generally consisting of sulphonated fatty alcohols and
carbonates, phosphates and silicates. The active molecules exhibit
a hydrophylic and a hydrophobic part, i.e., carboxyl hydroxyl amine
and sulphonate groups as well as long chain hydrocarbons of high
molecular weight, as hydrophobic example, the sulphonic derivatives
of aromatic hydrocarbons with a hydrophobix aliphatic chain.
The therapeutically active ingredients 12 which may be incorporated
or impregnated into the coating or binding 11 formed of either soap
and/or detergent may include the following: pumice stone powder,
zirconium silicate, strontium chloride, stanous oxide, dental grade
fluorides, essential oils of varying flavors and/or aromas, thymols
and phenols, chlorinated phenols and numerous other like
substances.
The therapeutic agents 12 can be readily embedded or incorporated
in the coating or binding 11 of the floss 10 by dispersing the
selective agents in the soap or detergent paste. Depending upon the
amount of agents to be incorporated in the binding or coating for
the floss fibers, 5 to 10 percent of water is added to the soap
and/or detergent to transform the solid binder to a paste or soft
paste. The selective agents, which are solid, are added to the
paste which, depending upon the amount added, will cause the paste
to thicken. Liquid therapeutic agents which are soluble and/or
mixable with water will cause the paste to thin out. Thus the
amount and type of the respective agents used can vary over a large
range depending upon how much of the agent is solid and how much of
it is liquid.
To a paste mixture comprising of a small part of soap to a larger
part of detergent; as for example, 10 percent sodium soap to 90
percent of a solid detergent, 20 percent by weight of zirconium
silicate or pumice stone powder or suitable dental polishing agent
may be added thereto. In the event it is further desirable to
incorporate a dental grade fluoride for additional therapeutic
effect, a 20 percent dental grade fluoride solution may be added to
the mixture.
If a flavoring material is desired to be added into the paste
mixture for the floss fibers, a predetermined amount of an
essential oil may be added to the paste, e.g., 5 to 40 percent
depending upon the characteristics of the essential oil; thymols,
phenols, chlorinated phenols, hydro carbons, alcohols, aldehydes,
esters, terpenes and tars.
Water insoluble liquid material can be readily incorporated in the
paste mixture, because the soap and/or detergent will aid to
emulsify these materials. Water as needed may be added. Therefore
in forming the paste of soap and/or detergent mix in accordance
with this invention the various therapeutic ingredients and the
polishing agents hereinbefore referred to can be readily added to
the paste to formulate a desired paste mixture to include any
combination of the ingredients herein described. With the coating
or binder paste so formed, the fibers 10 making up the dental floss
can be readily pulled through the paste mix whereby the fibers are
coated or bonded thereby. The surplus paste is removed from the
fibers by passing the coated fibers through squeegees and/or
squeegee rollers. In the event a volatile ingredient has been
incorporated in the paste mix, the coated floss will be subjected
to a drying atmosphere and preferably one saturated with the
volatile matter used in the paste and free of water vapor.
The dental floss formed in the manner herein described exhibits
when formed, a smooth film-like surface which is essentially
uninterrupted and sufficiently resilient so as to be capable of
freely flexing in use. The polishing agent 12 embedded in the
coating 11 enhances the removal of the plaque when the dental floss
is used.
In operation the saliva or other aqueous liquid present in the
mouth tends to dissolve the coating or binder material 11 and in
doing so liberates the therapeutically active matter incorporated
therein.
It will be understood that the proportions hereandabove set forth
are not intended to be critical and are merely illustrative of a
particular formulation. Various ingredients may be used in varying
combinations and/or proportions, the significance residing in that
the paste mix can be formed in a manner whereby a soap and/or
detergent constitutes a base or carrier whereby selective active
ingredients hereinbefore defined can be readily incorporated and
formed into the coating of the floss fibers by a single application
or pass of the fibers through the paste mix.
While the instant invention has been described with respect to a
particular embodiment thereof variations and modifications may be
made without departing from the spirit or scope of the
invention.
* * * * *