GB2066667A - Apparatus for the production or maxillar models through cephalometric analysis - Google Patents
Apparatus for the production or maxillar models through cephalometric analysis Download PDFInfo
- Publication number
- GB2066667A GB2066667A GB8000588A GB8000588A GB2066667A GB 2066667 A GB2066667 A GB 2066667A GB 8000588 A GB8000588 A GB 8000588A GB 8000588 A GB8000588 A GB 8000588A GB 2066667 A GB2066667 A GB 2066667A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- condylar
- maxillar
- plates
- occlusal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
- A61C19/045—Measuring instruments specially adapted for dentistry for recording mandibular movement, e.g. face bows
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/02—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings characterised by the arrangement, location or type of the hinge means ; Articulators with pivots
- A61C11/022—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings characterised by the arrangement, location or type of the hinge means ; Articulators with pivots with two adjustable pivoting points, e.g. Argon-type articulators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/08—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator
- A61C11/081—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator with adjusting means thereof
- A61C11/082—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator with adjusting means thereof for rectilinear adjustment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/06—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with incisal guide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
- A61C11/08—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator
- A61C11/081—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator with adjusting means thereof
- A61C11/084—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator with adjusting means thereof for 3D adjustment, e.g. Ball-and-socket
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Dentistry (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
An apparatus for the production of maxillar models through cephalometric analysis consists of a base with two plates, inferior and superior. The apparatus consists of a single base 9 where two columns 7 are set with condylar elements 5 which support the upper section 3 which hold the condylar movables. The base in the upper section support support both the mandibular 14 and the palatal 18 plates with their platforms 13, 18. The occlusal plate 17 is placed between these two plates resting over two leading rods 8, 16. An articulated ruler with a level 26 is used for the transferance of cephalometric angles, planes and points. <IMAGE>
Description
SPECIFICATION
Apparatus for the production of maxillar models ,through cephalometric analysis
This invention relates to the fields of Prosthodontics, Orthodontics, Maxillofacial Surgery specially in the branch of dentomaxillofacial anomalies where the use of this apparatus is obligatoryforthe study and analysis of these anomalies.
It is known the National Gnathostat, apparatus for the confection of static maxillar models taking as clinical references the E-E-P (ear-eye plane), the
R-M-P (raphe-median plane) and the O-P (orbital plane) of Simon. These static patterns are used in the diagnosis of dentobuccal deviation and anomalies of the mentioned planes.
The method is also known of outlining dentalalveole patterns according to the planes and points of the cephalometric analysis using ruler, compass, scissors, knives to measure and cut the patterns in accordance with this analysis.
The method of outlining the dental-alveole patterns with reference to the points and planes of the cephalometric analysis is made by cutting the base of the model according to the mandibular plane;
the base of the upper model is outlined according to the palatal plane;
the anterior part of the upper model is defined by the anterior nasal spine and the anterior part of the lower model is defined by the pogonio;
the posterior borders of both models are outlined according to a perpendicular to the plane of Frankfort. All these cuts are made by measurements and studies of the cephalometric analysis.
The maxillar models made through cephalometric analysis without the assistance of an apparatus are not completely exact since the transcription of measurements and angles of the planes is frequently made by cutting counter-drawings of these planes and angles in cardboard, outlining the dental alveole casts by comparison, and using teleradiography, the patterns are shaped and scraped to obtain the references of the planes described above. Besides the patterns obtained are apart only connected by the dental joint which makes the measurements for possible corrections difficult and inexact.
With this apparatus, it is possible to construct maxillar models through the cephalometric analysis and the graduated occlusal plane of anatomic size and shape in lessertime;
it is possible to transfer points, planes and angles pf this analysis to the apparatus obtaining models dynamically adjoined and articulated in craniofacial position in three dimensions. With the scales of the apparatus it is possible to measure the position and relations obtained and the corrections projected in any of the planes as well. Besides the apparatus is useful for the preparation of prosthesis because of its interchangeable plates.
According to the invention, an apparatus for the production of maxillar models through cephalometric analysis consisting of a base with two platens, inferior and superior, wherein by the purpose of simplifying the construction of maxillar models and its anatomic relation, obtaining more exactness in the correction of the dentomaxillofacial anomalies and reducing the time of production of the models, consists of one single base where two towers are set with condylar elements which support the upper section which hold the condylar movables.
The base and the upper section support both the mandibular and the palatal plates with their platforms. The occlusal plate is placed between these two plates resting over two leading rods. An articulated ruler with a level is used for the transference of cephalometric angles, planes and points.
Preferably, the two telescopic towers which move independently in a transverse direction with reference to the base have in the upper part of each tower a condylar element which moves vertically and turn over its axis. In this condylar elements rests and slides the condylar axis whose movements and transfers are fixed by means of scales.
Preferably, the mandibular plate is attached to its inferior platform by means of a telescopic rod and an adjustable ball joint that permits to give the position of the cephalometric mandibular plane. The palatal plate is similar to the mandibular plate but fixed to the upper section.
Preferably, the plates have sliding platforms, inferior and superior, which move in anteroposterior and lateral direction with reference to its base to an angle of approximately S"thus permitting the movement of the maxillar model in the plates in three dimensions.
Preferably, an occlusal plate has a slot in the median line of its superior part where the anterior guiding rod slides and it is fixed and another slot in the posterior part where is introduced the posterior guiding rod of the base.
Preferably, the auxiliary graduated occlusal plane which consists of a base has in its front median line a graduated semicircle with a pendulum or plumb which permits to measure the grades of deviation of the patient's occlusal plane.
The apparatus has both condylar elements and plates (palatal, occlusal and mandibular) adaptable to three dimensions thus permitting the anatomical construction and adjoining of maxillar models by the use of an articulated ruler with a level to transfer the points, planes and angles of the cephalometric analysis and the graduated occlusal plane to the apparatus.
The scales of the apparatus permit to measure the position and motion of its movable elements.
The invention will now be described by way of example with reference to the accompanying drawings, in which:
Figure 1 shows an axonometric view of the apparatus according to the invention;
Figure 2 shows a tracing of a lateral teleradiograph with its cephalometric analysis;
Figure 3 shows a tracing of a postero-anteriortele
radiograph with its cephalometric analysis, and
Figure 4 shows an axonometric view of a g raduated occlusal plane.
The apparatus (Fig. 1) consists of a single base 9 and an upper section 3. In its posterior part and at both sides of the median line are set two columns 7 which can be adjusted by a scale in the base according to the distances right-condyle sagittal plane 33 and left-condyle sagittal plane 35 of Fig. 3. In the upper part of each column 7, condylar elements 5 are telescopically set which can be adjusted according to the condyles position. The condylar elements 5 have condylarguides with fixing screws.
The base 9 and the upper section 3 have a slot in their median line with an antero-posterior direction in which eccentrics 4, 12 slide. These eccentrics support platforms 19, 13 which support the mandibular 14 and palatal 18 plate by a ball joint 11 placed in the middle of the platforms 13 and 19.
A rod 10 which joins the ball joint 11 to the plates 14, 18 permits the height required to be adjusted. By the articulations and adjustment of the height it is possible to place the plates 14, 18 according to the palatal 22 and mandibular 27 planes of Fig. 2. The occlusal plate 17 is used to position the inferior dental cast in a cephalometric relation with the angle determined by the graduated occlusal plane (Fig. 4).
The occlusal plate is placed and adjusted by the leading rods 8, 16 and is guided by the level of the ruler 26 which transfers the relation of the mandibular 27 and occlusal 25 planes of Fig. 2 and the angle of the occlusal plane (Fig. 4).
The upper section 3 has an elongation 2 with the entranceoftheincisal rod 1 which lies in the adaptable incisal guide 15 placed at the front of the base 9.
The following steps are used to obtain the maxillar models.
1. Graduated occlusal plane (Fig. 4):
With the head of the patient in horizontal position, an interchangeable occlusal plate 39 is placed on the centrical occlusion and sagittal median line. The gradiations are measured on the graduated semicircle 41 according to the position of the pendulum 42.
2. Cephalometric analysis:
In lateral teleradiography (Fig. 2), the position of the Gonion 29, the menton 28, the highest cyspid 23, the incisal border 24 and the anterior 21 and post erior20 nasal spine are marked and the mandibular
27, occlusal 25 and palatal 22 planes are outlined. In anteroposteriorteleradiography (Fig. 3) the position of the right and left Gonion 34,36, right and left condyles 31, 38 are marked and the sagittal plane
and the perpendiculars of the different points 32,33,
35,37 to the mentioned sagittal are projected.
All the points and planes of the cephalometric
analysis are measured with the ruler 26 of Fig. 2.
3. Construction ofthe negative profile:
Two patterns of thin metal are cut over the lateral
tracing; an inferior pattern defined by the mandibu
lar 27 and the occlusal planes 25 are placed over the
lateral tracing (Fig. 2) obtained from the
cephalometric analysis. This profile is marked and
cut from its intersection up to approximately two
centimetres in front of the mandibular profile
thereby obtaining one anterior and one posterior part with the negative mandibular profile (piece for contour). The superior pattern is defined by the occlusal 25 and the palatal 22 planes from the posterior nasal spine 20 to approximately two centimetres in front of the maxillar profile. This profile is marked and cut thereby obtaining two pieces, one anterior and one posteriorwith the negative maxillar profile (piece for contour).
4. Preparing the models:
The inferior model is cast in a horseshoe shape with the height not interfering with the mounting. At the labial level of the incisive profile, the gum is pared to arrange the setting of the negative mandibular profile patterns.
The superior model should also be cast with the height not interfering with the mounting. At the face level of the incisive profile, the zone ofthe gum is pared to arrange the setting of the pattern of the negative maxillar profile.
The clinical median line is marked out in both models, superior and inferior.
5. Transference of planes and points of the cephalometric analysis and the graduated occlusal plane to the apparatus. Use of the cephalometric ruler with level in each of its sections:
By use of the cephalometric ruler (Fig. 2) the mandibular 27 and the occlusal 25 planes are transfered to the apparatus. The mandibular plate 14 is adjusted until the level of the occlusal section of the ruler is in a horizontal plane, and the plate 14 is then fixed.
The occlusal plate 17 is placed over the occlusal section of the ruler setting into position the leading rods 8, 16 according to the variation of the angle given by the graduated occlusal plane. By use of the cephalometric ruler, the angles of the mandibular 27 and the palatal 22 planes of Fig. 2 are taken and fixed and then transferred to the apparatus, adjusting the palatal plate 18 of Fig. 2 to fix its position.
Both condylar elements 5 of the apparatus (Fig. 1) are placed into position transferring the lengths of the perpendiculars 32,33,35,37 of Fig. 3 by the cephalometric ruler.
6. Construction and setting of maxillar models in the apparatus:
The inferior model is fixed to the occlusal plate 17 correctly adjusted in the antero-posterior and lateral direction. The occlusal plate is position in the apparatus, the model of the mandibular plate 14 is fixed; and then the occlusal plate is removed.
The superior model is then connected to the inferior model, already fixed, by means of a centrical articulation and the superior model is fixed to the palatal plate 18.
The models are attached to the corresponding plates by, for example, wax, modeling compound or plaster.
The contour of the mandibular profile is made by
using the pattern of the negative mandibular profile,
placing it over the labial face of the incisive profile
and the mandibular plate 14, marking on the plate
the position of the menton point 28 of Fig. 2.
In the same way, the contour of the maxillar profile
is made using the negative maxillar profile marking
in the palatal plane 18 the position of the anterior
nasal spine point 21 of Fig. 2.
On the mandibular plate 14 the position of the
Gonion 29 is marked in the antero-posterior direc
tion according to the length of the mandibular plane
as from the menton 28 of Fig. 2. The position of the
Gonion 34,36 is marked in a lateral direction by the
length of the perpendicular 33,35 of Fig. 3.
On the palatal plate 18 the position of the posterior
nasal spine 20 is marked as from the anterior nasal
spine 21 with the length of the palatal plane 22 of Fig.
Claims (7)
1. Apparatus for the production of maxillar mod
els through cephalometric analysis consisting of a
base with two plates, inferior and superior, wherein
a single base having two telescopic towers set with
condylar elements; the condylar elements support
ing an upper section which holds the condylar mov
ables; the base and the upper section supporting
both a mandibular and a palatal plate by platforms;
an occlusal plate located between these two plates
and resting over two leading rods; and
an articulated ruler with a level for measuring
cephalometric angles, planes and points.
2. Apparatus as claimed in claim 1, wherein the
two towers move independently in a transverse
direction with respect to the base, the towers having
in their upper part a condylar element which rotates
in a vertical plane about its axis; and
in these condylar elements the condylar axis rests
and slides whose movements and transfers are fixed
by means of scales.
3. Apparatus as claimed in any preceding claim,
wherein the mandibular plate is attached to its
inferior platform by a telescopic rod and an adjust
able ball joint which permits the position of the
cephalometric mandibular plane to be given; and
the palatal plate being attached to the upper sec
tion by a telescopic rod and an adjustable ball joint.
4. Apparatus as claimed in any preceding claim,
wherein the plates have sliding platforms, inferior
and superior, which move in antero-posterior and
lateral direction with reference to the base to an
angle of approximately 5" thus permitting the
movement of the maxillar model on the plates in
three dimensions.
5. Apparatus as claimed in any preceding claim,
wherein the occlusal plate has a first slot in the
median line of its superior part in which the anterior leading rod slides and a second slot in the posterior
part in which the posterior guiding rod slides.
6. Apparatus as claimed in any preceding claim
wherein an auxiliary graduated occlusal plane which
consists of a base which has in its front median line a
graduated semicircle with a pendulum or plumb, the
graduated semicircle permitting the measurement of
the grades of deviation of the patient's occlusal
plane.
7. Apparatus for the production of maxillar models through cephaiometric analysis substantially as
herein described with reference to the accompany
ing drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8000588A GB2066667B (en) | 1980-01-08 | 1980-01-08 | Apparatus for the production of maxillar models through cephalometric analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8000588A GB2066667B (en) | 1980-01-08 | 1980-01-08 | Apparatus for the production of maxillar models through cephalometric analysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2066667A true GB2066667A (en) | 1981-07-15 |
| GB2066667B GB2066667B (en) | 1984-07-25 |
Family
ID=10510513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8000588A Expired GB2066667B (en) | 1980-01-08 | 1980-01-08 | Apparatus for the production of maxillar models through cephalometric analysis |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2066667B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984004034A1 (en) * | 1983-04-12 | 1984-10-25 | Johannes Puschmann | Device for plastering models of jaws used in manufacturing dental prosthesis |
| US4505674A (en) * | 1983-07-05 | 1985-03-19 | Ab Dentatus | Articulator for use in making dentures or parts thereof |
| US5266029A (en) * | 1990-08-07 | 1993-11-30 | Tibor Feher | Device and method for instrumental model analysis |
| FR2727306A1 (en) * | 1994-11-25 | 1996-05-31 | Odont Alp | Diagnostic equipment device for jaw and dental bite profile |
| WO2000021458A3 (en) * | 1998-10-08 | 2000-09-14 | Masoud Torkzadeh | Device and method for fixing tooth models on an articulator or similar device |
| EP1172072A1 (en) * | 2000-07-14 | 2002-01-16 | ISP Individual-System Prothetik AG | Device to receive anatomical articulation models |
| WO2009050455A1 (en) * | 2007-10-15 | 2009-04-23 | Greater Glasgow Health Board | Bow and articulator frame apparatus |
| WO2010102534A1 (en) * | 2009-03-12 | 2010-09-16 | 青岛市市南区华康口腔诊所 | Adjustable oral cavity bracket positioning device and positioning method of it |
| ES2594496A1 (en) * | 2015-06-18 | 2016-12-20 | Esam Global House, S.L. | Device for locating the occlusal plane in a traditional articulator from a virtual job (Machine-translation by Google Translate, not legally binding) |
-
1980
- 1980-01-08 GB GB8000588A patent/GB2066667B/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984004034A1 (en) * | 1983-04-12 | 1984-10-25 | Johannes Puschmann | Device for plastering models of jaws used in manufacturing dental prosthesis |
| US4547154A (en) * | 1983-04-12 | 1985-10-15 | Johannes Puschmann | Device for the encapsulation in plaster of models of the jaw for the manufacture of dental prostheses |
| EP0210668A3 (en) * | 1983-04-12 | 1987-05-20 | Johannes Puschmann | Device for the manufacture of a dental prosthesis |
| US4505674A (en) * | 1983-07-05 | 1985-03-19 | Ab Dentatus | Articulator for use in making dentures or parts thereof |
| US5266029A (en) * | 1990-08-07 | 1993-11-30 | Tibor Feher | Device and method for instrumental model analysis |
| FR2727306A1 (en) * | 1994-11-25 | 1996-05-31 | Odont Alp | Diagnostic equipment device for jaw and dental bite profile |
| WO2000021458A3 (en) * | 1998-10-08 | 2000-09-14 | Masoud Torkzadeh | Device and method for fixing tooth models on an articulator or similar device |
| EP1172072A1 (en) * | 2000-07-14 | 2002-01-16 | ISP Individual-System Prothetik AG | Device to receive anatomical articulation models |
| WO2009050455A1 (en) * | 2007-10-15 | 2009-04-23 | Greater Glasgow Health Board | Bow and articulator frame apparatus |
| WO2010102534A1 (en) * | 2009-03-12 | 2010-09-16 | 青岛市市南区华康口腔诊所 | Adjustable oral cavity bracket positioning device and positioning method of it |
| ES2594496A1 (en) * | 2015-06-18 | 2016-12-20 | Esam Global House, S.L. | Device for locating the occlusal plane in a traditional articulator from a virtual job (Machine-translation by Google Translate, not legally binding) |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2066667B (en) | 1984-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |