Note: Descriptions are shown in the official language in which they were submitted.
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METHOD AND APPARATUS OF FULL MOUTH RECONSTRUCTION
BACKGROUND OF THE INVENTION
1. Fields of the invention
The present invention relates to a full mouth reconstruction method and
apparatus, and more particularly, to a full mouth reconstruction method and
apparatus
capable of quickly recording a patient's data for one time, accurately
determining the
appropriateness of mounting a denture, and lowering the error of manufacturing
the
denture.
2. Descriptions of Related Art
In general, replaceable artificial teeth are mounted for people whose teeth
have
all fallen out or required extraction due to factors including medical
treatment,
unexpected contraction, disease or old age.
The most common full mouth denture is in form of a movable denture and
generally includes a whole set of maxillary teeth and mandibular teeth, and
the size and
shape of the full mouth denture are adjusted before the full mouth denture is
mounted
onto a patent's maxillary and madibular soft tissues for the purpose of an
oral and dental
rehabilitation.
As material science advances, the denture becomes increasingly stronger and
more durable and comes with a natural look, and the development of denture
design
improves a patient's comfort and chewing efficiency.
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However, the denture is generally tailored according to the shape of a
patient's
arch for its production and processing and thus cannot be mass produced, and
the
production process generally includes several times of communications between
the
patient and dentist during the clinical treatment, so that it takes much time
before the
denture can be produced, and the patient has to bear with the inconvenience
caused
during the period of producing the denture. After the denture is produced and
mounted,
the patient still needs to go through the processes of adapting the maxillary
and
mandibular occlusions and correcting the error (including the mold transfer
error) caused
by clinical and dental technologies, so that it further lengthens the time
required for the
production of the denture, increases the transportation cost, and causes
discomfort to the
patient in the period of adapting a newly installed denture. Obviously, the
prior art
requires further improvements.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a full mouth
reconstruction method and apparatus capable of providing accurate maxillary
and
mandibular arches, taking samples quickly, and determining the appropriateness
of
mounting a patient's denture accurately.
Another objective of the present invention is to provide a full mouth
reconstruction method and apparatus that obtains the facial occlusion records
after the
operation of a first-time impression takes place, integrates more accurate
parameters of an
extraoral occluder, and then performs a more accurate second-time impression
and takes
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dynamic occlusal movement records of the patient, and finally uses the concept
of
statistics to reduce the range of error of the first-time and second-time
operations for the
full mouth in order to produce a full mouth reconstruction.
A further objective of the present invention is to provide a full mouth
reconstruction method and apparatus capable of scribing and recording a
patient's midline
and lips to achieve a visually symmetric beautification effect of the full
mouth
reconstruction.
Another objective of the present invention is to provide a full mouth
reconstruction method and apparatus capable of reducing the error of producing
the
denture, reconstructing a toothless patient's facial and oral damages, and
providing a
good chewing function and a high appropriateness of the installation.
Another objective of the present invention is to provide a full mouth
reconstruction method and apparatus capable of recording a vertical height of
a patient's
occlusion, facial midline, horizontal occlusion line, a connected line between
two pupils
and a nose-ear line at a time to provide important reference data for facial
and oral
reconstruction.
Another objective of the present invention is to provide a full mouth
reconstruction method and apparatus capable of applying the record of a metal
calibration
to obtain the data of a patient's front-and-rear, left-and-right, and up-and-
down maxillary
and mandibular movements through the facial movements of a patient's chewing
and
speaking, and providing these accurate data to a dental mold technician for
producing the
denture.
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To achieve the aforementioned and other objectives, the present invention
provides a full mouth reconstruction method, comprising:
a step of performing a static molding of a patient's gum, wherein a denture
molding structure is mounted onto the patient's maxilla and mandible after the
denture
molding structure is filled with an impression material, so that the static
molding of the
patient's gum can be performed based on the patient's occlusion;
a step of recording a horizontal line and a vertical line of the patient's
occlusion,
wherein a vertical height, a facial midline, a horizontal occlusion line, a
connecting line
between two pupils and a nose-ear horizontal line of the patient are recorded
quickly to
provide important reference data for facial and oral reconstructions while the
patient is
biting a first recording device; and
a step of recording the patient's dynamic and static occlusions, wherein
facial
movements of a patient's chewing and speaking are recorded quickly while the
patient is
biting a second recording device, and records of a metal calibration are
applied to obtain
the patient' s front-and-rear, left-and-right, and up-and-down maxillary and
mandibular
movements through facial movements of a patient' s chewing and speaking, and
these
data are provided to a dental mold technician for producing the denture.
The present invention further provides a full mouth reconstruction apparatus,
wherein the denture molding structure is comprised of an upper mold and a
lower mold,
and a maxillary anterior region is defined at the front of the upper mold, and
a board is
installed at the top of the maxillary anterior region, and an arc extension
plate is extended
upwardly from a connecting position of the board and the maxillary anterior
region, and
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an edge lifting plate is installed separately on both sides of the board and
integrally
formed with the extension plate, and a protrusion is formed at a central
position of the
board and abutted against the patient's maxilla; and
a mandibular anterior region is defined at the front of the lower mold, and an
arc
cheek gum portion is disposed separately on both sides of the mandibular
anterior region,
and a recession is formed at the bottom of each cheek gum portion and abutted
against
the patient's mandible, such that the top of the mandibular anterior region
and the bottom
of the maxillary anterior region of the upper mold are aligned precisely with
each other
through the patient's dental occlusion.
Wherein, the arc extension plate has a front recession formed at a central
position thereof.
Wherein, each of the two edge lifting plates has a cheek recession formed at a
position proximate to the middle position thereof.
Wherein, the two edge lifting plates have a plurality of holes formed at
predetermined positions thereof respectively.
Wherein, the protrusion has a plurality of vent holes.
Wherein, the cheek gum portion has more than one vent hole.
Wherein, the maxillary anterior region and the mandibular anterior region have
a
label portion disposed at a middle position thereof, and the label portion has
a
longitudinal label and a plurality of horizontal labels perpendicular to the
longitudinal
label.
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In the full mouth reconstruction apparatus, the first recording device is
comprised of a vertical rod, a first horizontal rod, an occluder, a second
horizontal rod
and a third horizontal rod.
The vertical rod has a vertical chute and a penetrating member, and the
penetrating member has a horizontal adjusting slot, and the first horizontal
rod is screwed
into an adjusting slot of the penetrating member of the vertical rod, and the
occluder has a
horizontal tablet, and an arc upper tab and an arc lower tab are disposed at
the top and
bottom of the tablet respectively, and the tablet is screwed to the first
horizontal rod, and
the second horizontal rod and the third horizontal rod are screwed to a chute
of the
vertical rod.
In the full mouth reconstruction apparatus, the second recording device is
comprised of an arc upper seat, an upper plotting board with a connecting
portion
disposed at an end, an arc lower seat, and a lower plotting board, and the
upper plotting
board is installed at the bottom of the upper seat, and the lower plotting
board is installed
at the top of the lower seat, and the lower plotting board and the upper
plotting board are
attached with each other, and the upper seat, the upper plotting board, the
lower seat and
the lower plotting board are fixed by a plurality of screws.
Wherein, the connecting portion of the upper plotting board has a positioning
notch.
Wherein, the upper and lower seats are made of an acrylic plastic material.
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6a
According to an aspect of the invention, there is provided a method for
producing a
denture comprising: providing a denture molding structure comprising: an upper
mold; a
lower mold; a maxillary anterior region defined at the front of the upper
mold; a mandibular
anterior region defined at the front of the lower mold; a board is installed
at a top of the
maxillary anterior region; an arc extension plate extending upwardly from a
connecting
position of the board and the maxillary anterior region; an edge lifting plate
installed
separately on both sides of the board and integrally formed with the extension
plate; a
protrusion formed at a central position of the board and arranged to be
abutted against a
patient's maxilla; an arc cheek gum portion disposed separately on both sides
of the
mandibular anterior region; and a recession formed at the bottom of each cheek
gum portion
and arranged to be abutted against the patient's mandible; filling the dental
molding
structure with an impression material; performing a static molding of the
patient's gum,
wherein the denture molding structure is mounted onto the patient's maxilla
and mandible
such that a top of the mandibular anterior region and a bottom of the
maxillary anterior
region are aligned precisely with each other through the patient's dental
occlusion so that
the static molding of the patient's gum can be performed based on the
patient's occlusion;
recording a horizontal line and a vertical line of the patient's occlusion,
wherein a vertical
height, a facial midline, a horizontal occlusion line, a connecting line
between two pupils and
a nose-ear horizontal line of the patient are recorded to provide reference
data for facial and
oral reconstructions while the patient is biting a first recording device;
recording the patient's
dynamic and static occlusions, wherein facial movements of a patient's chewing
and
speaking are recorded while the patient is biting a second recording device,
and records of a
metal calibration are applied to obtain the patient's front-and-rear, left-and-
right, and up-and-
down maxillary and mandibular movements through facial movements of the
patient's
chewing and speaking; and providing the recorded data to a dental mold
technician for
producing the denture.
According to a further aspect of the invention, there is provided an apparatus
for
producing a denture comprising: an upper mold; a lower mold; a maxillary
anterior region
defined at the front of the upper mold; a mandibular anterior region defined
at the front of
the lower mold; a board is installed at a top of the maxillary anterior
region; an arc extension
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plate extending upwardly from a connecting position of the board and the
maxillary anterior
region; an edge lifting plate installed separately on both sides of the board
and integrally
formed with the extension plate; a protrusion formed at a central position of
the board and
arranged to be abutted against a patient's maxilla; an arc cheek gum portion
disposed
separately on both sides of the mandibular anterior region; and a recession
formed at the
bottom of each cheek gum portion and arranged to be abutted against the
patient's
mandible.
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The present invention will become more obvious from the following description
when taken in connection with the accompanying drawings which show, for
purposes of
illustration only, a preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a flow chart of a reconstruction process of the present invention;
Fig. 2 is an exploded view of a denture molding structure of the present
invention;
Fig. 3 is a perspective view of another denture molding structure of the
present
invention;
Fig. 4 is a perspective view of a further denture molding structure of the
present
invention;
Fig. 5 is a schematic view of installing a denture molding structure in
accordance with a preferred embodiment of the present invention;
Fig. 6 is a schematic view of installing a first recording device in
accordance
with a preferred embodiment of the present invention;
Fig. 7 is a front view of installing a first recording device in accordance
with a
preferred embodiment of the present invention; and
Fig. 8 is a perspective view of a second recording device of the present
invention;
and
Fig. 9 is a schematic view of installing a second recording device in
accordance
with a preferred embodiment of the present invention.
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 to 9, the full mouth reconstruction method of the present
invention comprises:
a step of performing a static molding of a patient's gum, wherein a denture
molding structure A is mounted onto the patient's maxilla and mandible after
the denture
molding structure is filled with an impression material, so that the static
molding of the
patient's gum can be performed based on the patient's occlusion;
a step of recording a horizontal line and a vertical line of the patient's
occlusion,
wherein a vertical height, a facial midline, a horizontal occlusion line, a
connecting line
between two pupils and a nose-ear horizontal line of the patient are recorded
quickly to
provide important reference data for facial and oral reconstructions while the
patient is
biting a first recording device B; and
a step of recording the patient's dynamic and static occlusions, wherein
facial
movements of a patient's chewing and speaking are recorded quickly while the
patient is
biting a second recording device C, and records of a metal calibration are
applied to
obtain the patient's front-and-rear, left-and-right, and up-and-down maxillary
and
mandibular movements through facial movements of a patient's chewing and
speaking,
and these data are provided to a dental mold technician for producing the
denture.
In addition, the present invention further provides a full mouth
reconstruction
apparatus, wherein, the denture molding structure A is comprised of an upper
mold 10
and a lower mold 20, and a maxillary anterior region 11 is defined at the
front of the
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upper mold 10, and a board 12 is installed at the top of the maxillary
anterior region 11,
and an arc extension plate 13 is extended upwardly from a connecting position
of the
board 12 and the maxillary anterior region 11, and an edge lifting plate 14 is
installed
separately on both sides of the board 12 and integrally formed with the
extension plate 13,
and a protrusion 15 is formed at a central position of the board 12 and
abutted against the
patient's maxilla (as shown in FIG. 2); and
a mandibular anterior region 21 is defined at the front of the lower mold 20,
and
an arc cheek gum portion is disposed separately on both sides of the
mandibular anterior
region, and a recession is formed at the bottom of each cheek gum portion 22
(as shown
in FIG 2) and abutted against a recession (not shown in the figure) of the
patient's
mandible, such that the top of the mandibular anterior region 21 and the
bottom of the
maxillary anterior region 11 of the upper mold 10 are aligned precisely with
each other
through the patient's dental occlusion.
Wherein, a front recession 131 is formed at a central position of the arc
extension plate 13 (as shown in FIG. 2).
Wherein, a cheek recession 141 is formed at a position proximate to the middle
position of the two edge lifting plates 14 (as shown in FIG 2).
Wherein, the two edge lifting plates 14 have a plurality of holes 142 formed
at
predetermined positions of the two edge lifting plates 14 respectively (as
shown in FIG.
2).
Wherein, the protrusion 15 has a vent hole 151 (as shown in FIG 2).
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Wherein, the cheek gum portion 22 has more than one vent hole 221 (as shown
in FIG. 2).
Wherein, a label portion L is disposed at the middle position of the maxillary
anterior region 11 and the mandibular anterior region 21, and the label
portion L has a
longitudinal label L1 and a plurality of horizontal labels L2 perpendicular to
the
longitudinal label L1 (as shown in FIG 4).
In addition, the present invention further provides a full mouth
reconstruction
apparatus, wherein, the first recording device B is comprised of a vertical
rod 30, a first
horizontal rod 40, an occluder 50, a second horizontal rod 60 and a third
horizontal rod
70.
The vertical rod 30 has a vertical chute 31 and a penetrating member 32, and
the
penetrating member 32 has a horizontal adjusting slot (not shown in the
figure), and the
first horizontal rod 40 is screwed into an adjusting slot of the penetrating
member 32 of
the vertical rod 30, and the occluder 50 has a horizontal tablet 51, and an
arc upper tab 52
and an arc lower tab 53 are disposed at the top and bottom of the tablet 51
respectively,
and the tablet 51 is screwed to the first horizontal rod 40, and the second
horizontal rod
60 and the third horizontal rod 70 are screwed to a chute 31 of the vertical
rod 30 (as
shown in FIG 6).
The present invention further provides a full mouth reconstruction apparatus,
wherein, the second recording device C is comprised of an arc upper seat Cl,
an upper plotting board C2 with a connecting portion C21 disposed at an end,
an
arc lower seat C3, and a lower plotting board C4, and the upper plotting board
C2 is
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installed at the bottom of the upper seat C3, and the lower plotting board C4
is installed at
the top of the lower seat C3, and the lower plotting board C4 and the upper
plotting board
C2 are attached with each other, and the upper seat Cl, the upper plotting
board C2, the
lower seat C3 and the lower plotting board C4 are fixed by a plurality of
screws (as
shown in FIG 8).
Wherein, the connecting portion C21 of the upper plotting board C2 has a
positioning notch C22.
Wherein, the upper and lower seats Cl, C3 are made of an acrylic plastic
material.
With reference to the aforementioned assembly and FIGS. 1 to 9, when a patient
wants to mount a full mouth denture, a denture molding structure A is provided
for
performing a static molding to obtain a first-time molding diagnostic and
classify the size
and shape of a patient's gum as the basis of manufacturing a personal tailor-
made
denture.
In the step of performing a static molding of a patient's gum, the top of the
upper
mold 10 and the bottom of the lower mold 20 of the denture molding structure A
are
mounted onto the patient's maxilla and mandible respectively (as shown in FIG
5) after
the denture molding structure A is filled with an impression material, so that
the static
molding of the patient's gum can be performed based on the patient's occlusion
Since a maxillary anterior region 11 is defined at the front of the upper mold
10,
such arrangement may help reconstructing the upper lip of a toothless patient
to a full and
rounded shape, and the edge lifting plates 14 installed on both sides have a
cheek
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recession 141 separately for reconstructing the external look of both cheeks,
and the
central position of the board 12 abuts against the protrusion 15 of the
patient's maxilla
and the vent hole 151 of the protrusion 15 to attach the board 12 to the
patient's maxilla
securely.
In addition, a mandibular anterior region 21 is defined at the front of the
lower
mold 20, such arrangement may help reconstructing the lower lip of the
toothless patient
to a full and rounded shape, and an arc cheek gum portion 22 is disposed
separately on
both sides of the mandibular anterior region 21 for reconstructing the
external look of
both cheeks and improving the comfort of installation, and the top of the
mandibular
anterior region 21 and the bottom of the maxillary anterior region 11 are
aligned precisely
with each other through the patient's dental occlusion (as shown in FIG 3) to
achieve the
effects of providing accurate maxillary and madibular occlusions effectively,
taking the
sample quickly, determining the appropriateness of mounting a patient's
denture, and
preventing the manufacturing error of the denture, so as to reconstruct a
toothless
patient's facial and oral damages and the external look of the patient's lips
and cheeks,
and provide a good chewing movement, an accurate pronunciation function, a
high
comfort and a useful application.
In the present invention, the maxillary anterior region 11 and the mandibular
anterior region 21 have a label portion L separately, and the label portion L
has a
longitudinal label L1 and a plurality of horizontal labels L2 (as shown in FIG
4), so that
the patient's midline and lips may be recorded to achieve the visually
symmetric
beautification effect of the full mouth reconstruction.
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In the step of recording a horizontal line and a vertical line of the
patient's
occlusion, a vertical height, a facial midline, a horizontal occlusion line, a
connecting line
between two pupils and a nose-ear horizontal line of the patient are recorded
quickly to
provide important reference data for facial and oral reconstructions while the
patient is
biting a first recording device B.
An occluder 50 is provided for the patient's maxillary and mandibular
occlusions,
so that the horizontal height, left and right positions and angle of the first
horizontal rod
40, second horizontal rod 60 and third horizontal rod 70 can be adjusted
appropriately
according to the vertical height, facial midline, horizontal occlusion line,
connecting line
between two pupils and nose-ear line of the patient's occlusion.
Since the second and third horizontal rods 60, 70 are screwed onto the chute
31
of the vertical rod 30, therefore the up-and-down horizontal height of the
second and third
horizontal rods 60, 70 on the chute 31 of the vertical rod 30 may be adjusted
in order to
adjust the patient's horizontal occlusion line, connecting line between two
pupils and
nose-ear line (as shown in FIG. 7). Obviously, the adjusting method is simple
and
convenience, and the invention is useful and practical.
After the patient is biting the first recording device B of the present
invention for
a time, a plurality of facial reference lines such as the vertical height,
facial midline,
horizontal occlusion line, connecting line between two pupils and nose-ear
line of the
patient's occlusion can be recorded quickly and transferred correctly to an
extraoral
recorder at a time, and then the data can be compiled for the manufacture of
the full
mouth denture without dividing the process into several parts or causing
errors, so as to
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effectively and accurately provide the important reference data for the facial
and oral
reconstructions.
In the step of recording the patient's dynamic and static occlusions: facial
movements of a patient's chewing and speaking are recorded quickly while the
patient is
biting a second recording device C, and records of a metal calibration are
applied to
obtain the patient's front-and-rear, left-and-right, and up-and-down maxillary
and
mandibular movements through facial movements of a patient's chewing and
speaking,
and these data are provided to a dental mold technician for producing the
denture.
Since the second recording device C is installed on the first recording device
B,
or the connecting portion C21 of the upper plotting board C2 is passed through
an
adjusting slot of the vertical rod 30, such that after the patient has bitten
the upper
plotting board C2 for a time, the first recording device B may be used for
recording a
plurality of facial reference lines including the vertical height, facial
midline, horizontal
occlusion line, connecting line between two pupils and nose-ear line of the
patient's
occlusion quickly (as shown in FIG 9), so as to provide important reference
data for the
facial and oral reconstructions.
Before the patient bites the upper plotting board C2, it is necessary to
prepare
upper and lower gum resins with a thickness of approximately 2mm on the
working
plaster model, and provide the upper and lower gum resins for the patient to
bite, and the
patient's accurate and ideal occlusal height is used, so that the gum can bear
the patient's
occlusal force, and then dynamic movements are recorded.
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For dynamic movement records, a patient uses the mandible to perform a
protruding movement repeatedly in the oral cavity, and a sideway (left and
right)
movement, and finally returns the mandible to a static position, and such
position is used
for setting the relation with respect to the center position.
Therefore, the present invention may apply the record of a metal calibration
to
obtain the front-and-rear, left-and-right, and top-and-down maxillary and
madibular
movement data through the facial movements of a patient's chewing and
speaking, and
these data are provided to a dental mold technician as accurate data for
manufacturing the
denture. Obviously, the invention is useful and practical.
In summation of the description above, the full mouth reconstruction method
and apparatus of the present invention overcomes the drawbacks of the
conventional
structure effectively by obtaining the facial occlusion records after the
operation of a
first-time impression takes place, integrating more accurate parameters of an
extraoral
occluder, and then performing a more accurate second-time impression and
taking
dynamic occlusal movement records of the patient, and finally using the
concept of
statistics to reduce the range of error of the first-time and second-time
operations for the
full mouth in order to produce a full mouth reconstruction.
While we have shown and described the embodiment in accordance with the
present invention, it should be clear to those skilled in the art that further
embodiments
may be made without departing from the scope of the present invention.
