DK152006B

DK152006B - DENTAL APPLIANCE

Info

Publication number: DK152006B
Application number: DK538280A
Authority: DK
Inventors: Ernst-Otto Fleer; Werner Guenther
Original assignee: Siemens Ag
Priority date: 1979-12-20
Filing date: 1980-12-18
Publication date: 1988-01-25
Also published as: DK152006C; DE2951538A1; EP0031127B1; EP0031127A1; DK538280A; DE2951538C2

Description

DK 152006 BDK 152006 B

- 1 -- 1 -

Opfindelsen angår et tandlægeapparat med et antal i en bæredel ved siden af hinanden anbragte moduler, som ved deres forsider indeholder optagelsesbøsninger for slange- eller kabelbundne instrumenter, som, når de ikke bruges, fra optagelsesbøsningernes åbninger rager i hvert 5 fald delvis ud over modulernes forsider, og som - set forfra og fra venstre mod højre - til højrehåndsbrug i stigende rækkefølge og til venstrehåndsbrug i faldende rækkefølge er anbragt i mindst to forskellige højder (plan I, II), under dannelse af flere følger (A, B, C), foran og/eller mellem og/eller bag hvilke der befinder sig en modulkom-10 ponent (5, 8) uden fra frontpladen (15) fremstående instrument.The invention relates to a dental apparatus with a number of modules arranged next to each other in a support part, which at their front sides contain receiving sockets for hose or cable-bound instruments which, when not in use, protrude from the openings of the receiving sockets at least partially beyond the front sides of the modules. , and which - seen from the front and from left to right - for right-hand use in ascending order and for left-hand use in descending order are placed at at least two different heights (planes I, II), forming several sequences (A, B, C), in front of and / or between and / or behind which a module component (5, 8) is located outside the instrument protruding from the front plate (15).

Det er hidtil på forskellige måder blevet forsøgt at løse det problem, at anbringe ikke blot fire eller maksimalt fem instrumenter i et tandlægeapparat, men også at anbringe seks eller syv ergonomisk og gri-begunstigt.Attempts have so far been made in various ways to solve the problem of placing not only four or a maximum of five instruments in a dental appliance, but also placing six or seven ergonomically and gri-favorably.

15 Det ville i første forsøg være tænkeligt at anbringe modulkompo nenterne som i et kendt apparat (DE-fremlæggelsesskrift 23 16 071) ved siden af hinanden i én række i en bærerdel og at lade hele arrangementet være skuffeagtigt udtraekkeligt og være svingeligt ved hjælp af en aksellejring således, at de enkelte modulkomponenter i deres udtrukkede 20 stilling kan hælde skuffeagtigt under dannelsen af en stigende (eller faldende) rækefølge. Bortset fra, at en sådan løsning mekanisk set ville være relativt omstændelig og dermed også upålidelig, ville der, fx. ved syv modulkomponenter, fremkomme en udformning, som vil virke optisk og dermed forstyrrende på patienten. Desuden danner de i deres hældning 25 indbyrdes indstillelige modulkomponenter smudskanter og -spalter, der af hygiejniske grunde skal undgås.In the first attempt, it would be conceivable to place the module components as in a known apparatus (DE presentation 23 16 071) next to each other in a row in a carrier part and to let the whole arrangement be drawer-like extensible and pivotable by means of a shaft bearing so that the individual module components in their extended position can tilt drawer-like during the formation of an ascending (or descending) order. Apart from the fact that such a solution would be mechanically relatively cumbersome and thus also unreliable, e.g. at seven module components, a design will emerge which will act optically and thus interfere with the patient. In addition, in their inclination, 25 mutually adjustable modular components form dirt edges and gaps, which must be avoided for hygienic reasons.

Det kunne også være tænkeligt at foreslå et apparat svarende til et andet kendt apparat fra US-patentskrift 3 427 719, hvor optagelsesbøsninger til de instrumenter, som skal holdes, er anbragt skiftevis i 30 to forskellige højder med samme hældningsvinkel i en frontplade, som hælder skråt hen mod betjeningssiden. En sådan skiftevis anbringelse af instrumenterne har i forhold til det tidligere kendte arrangement den fordel, at der ikke findes nogle mekanisk bevægelige dele, og i forhold til en stiv anbringelse af instrumenterne i ét plan den fordel, at til-35 gængeligheden som følge af forskydningen af instrumenterne er noget - 2 -It would also be conceivable to propose an apparatus similar to another known apparatus from U.S. Pat. No. 3,427,719, in which receiving bushings for the instruments to be held are arranged alternately at two different heights with the same angle of inclination in a front plate which is inclined. obliquely towards the operating side. Such an alternating arrangement of the instruments has the advantage over the previously known arrangement that there are no mechanically moving parts, and compared with a rigid arrangement of the instruments in one plane the advantage that the availability due to the displacement of the instruments is something - 2 -

DK 152006 BDK 152006 B

forbedret. Risikoen for kollisioner og beskadigelse af naboinstrumenter under betjeningen er imidlertid her stadig relativt stor.improved. However, the risk of collisions and damage to neighboring instruments during operation is still relatively high here.

Tilgængeligheden til instrumenterne kan ganske vist, som det er tilfældet ved et andet kendt apparate (AT-fremlæggelsesskrift 255 640), 5 være udformet med mindre risiko, hvis der, ved siden af de med instrumenter forsynede modulkomponenter, er anbragt en "blind"modulkomponent, dvs. en modulkomponent uden instrument. En sådan afbrydelse af instrumentarrangementet medfører ganske vist en vis plads, som forbedrer tilgængeligheden til instrumenterne og dermed mindsker risikoen for kolli-10 sion og beskadigelse. Hvis man imidlertid på denne måde vil anbringe seks eller syv instrumenter i huset, ville hele arrangementet få en bredde, som ikke blot ville være vanskeligere at håndtere, men også, da instrumenterne som helhed ville ligge for langt borte fra hinanden, ville forværre gribeteknikken.Admittedly, as is the case with another known apparatus (AT-Laid-Open Letter 255 640), the accessibility of the instruments can be designed with less risk if, in addition to the modular components provided with instruments, a "blind" modular component is arranged. , i.e. a modular component without instrument. Admittedly, such an interruption of the instrument arrangement entails a certain amount of space, which improves the accessibility of the instruments and thus reduces the risk of collision and damage. However, if one were to place six or seven instruments in the house in this way, the whole arrangement would have a width which would not only be more difficult to handle, but also, as the instruments as a whole would be too far apart, would aggravate the gripping technique.

15 Opfindelsen har i modsætning hertil til opgave at angive et appa rat af den indledningsvis angivne art, hvor der på pladsbesparende måde og optisk tiltalende kan anbringes mange instrumenter, uden at helhedsarrangementet bliver for stort, og hvor tilgængeligheden til instrumenterne er forbedret og risikoen for en beskadigelse på naboinstrumenter 20 under betjeningen.In contrast, the invention has for its object to provide an apparatus of the kind initially indicated, in which many instruments can be placed in a space-saving manner and optically appealing, without the overall arrangement becoming too large, and where the accessibility of the instruments is improved and the risk of a damage to neighboring instruments 20 during operation.

Til løsning af denne opgave foreslås det ved et tandlægeapparat af den indledningsvis angivne art ifølge opfindelsen, at de foran og/eller mellem og/eller bag følgerne anbragte modulkomponenter indeholder en optagelsesbøsning med en i dybden af modulkomponenten indstillelig in-25 strumentholder, i hvis hvilestilling det af den bårede instrument er indsænket, og i hvis arbejdsstilling instrumentet er anbragt i det mindste delvis fremstående i forhold til frontpladen på modulkomponenten.To solve this task, it is proposed with a dental apparatus of the type initially indicated according to the invention that the modular components arranged in front of and / or between and / or behind the consequences contain a receiving sleeve with an instrument holder adjustable in the depth of the modular component, in whose rest position that of the carried instrument is sunk, and in the working position of which the instrument is placed at least partially protruding relative to the faceplate of the module component.

Ifølge opfindelsen kan den for tilgængeligheden ønskede ledige 30 plads, som ved apparater af kendt konstruktion hidtil ikke har været udnyttet, benyttes til anbringelse af yderligere instrumenter, hvorved der ved samme (front-)flade kan anbringes flere instrumenter, men uden at den ovennævnte hindring ved tilgængeligheden indfinder sig. De forsænkeligt anbragte instrumenter er hensigtsmæssigt sådanne, som anven-35 des mindre hyppigt, fx. instrumenter til kirurgiske formål.According to the invention, the free space desired for accessibility, which has not hitherto been utilized in devices of known construction, can be used for placing additional instruments, whereby several instruments can be placed at the same (front) surface, but without the above-mentioned obstacle. upon availability occurs. The countersunk instruments are suitably those which are used less frequently, e.g. instruments for surgical purposes.

- 3 -- 3 -

DK 152006BDK 152006B

Fordelagtige udformninger og videreudformninger af opfindelsen er angivet i de afhængige krav.Advantageous embodiments and further embodiments of the invention are set out in the dependent claims.

Anbringelsen af instrumenterne i de to frontpladeafsnit, som danner en stump vinkel indbyrdes, har i forhold til en i ét plan liggende 5 frontflade den fordel, at der fremkommer et endnu større længdeafsnit til gribning af instrumenterne, hvilket isser er en fordel ved relativt korte instrumenter. Et endnu gunstigere greb opnås, hvis optagelsesbøsningerne i de to planer hælder forskelligt i forhold til vandret, nemlig i et øvre fladeafsnit kraftigere end i et nederste fladeafsnit. En 10 sådan spredning af instrumenterne i forbindelse med anbringelsen af instrumenterne i to planer fører til en endnu bedre tilgængelighed.The arrangement of the instruments in the two front plate sections, which form an obtuse angle with each other, has the advantage over an in-plane 5 front surface that an even larger longitudinal section is obtained for gripping the instruments, which is an advantage for relatively short instruments. . An even more favorable grip is obtained if the receiving bushings in the two planes are inclined differently from the horizontal, namely in an upper surface section more strongly than in a lower surface section. Such a diversification of the instruments in connection with the placement of the instruments in two levels leads to an even better availability.

I det følgende beskrives et udførelseseksempel for opfindelsen under henvisning til tegningen, på hvilken: fig. 1 viser et tandlægeapparat ifølge opfindelsen, set i per-15 spektiv, fig. 2,3 en skematisk gengivelse af en anbringelse af instrumenterne, fig. 4 det i fig. 1 viste apparat med et udtrukket instrument 12, set i snit efter linien IV-IV i fig. 1, 20 fig. 5 et længdesnit af holderen for instrumentet 12, og fig. 6 den i fig. 5 viste holder, set i perspektiv.In the following an exemplary embodiment of the invention is described with reference to the drawing, in which: fig. 1 shows a dental apparatus according to the invention, seen in perspective, fig. 2,3 a schematic representation of an arrangement of the instruments, fig. 4 that in fig. 1 with an extracted instrument 12, seen in section along the line IV-IV in fig. 1, 20 fig. 5 is a longitudinal section of the holder of the instrument 12, and FIG. 6 the one in fig. 5 shown holder, seen in perspective.

Fig. 1 viser perspektivisk et tandlægeapparat med en flad bæredel 1 af form som et bord, i hvilken er fastholdt moduler 2-8 med samme 25 bredde og byggehøjde. Modulerne 2-7 optager slangebundne instrumenter 9-14. Instumenterne 9-11 samt 13 og 14 rager i den viste aflægningseller ikke-brugsstilling ud over de med 15 betegnede frontflader af modulerne, så at brugeren kan trække dem ud fra disse stillinger.FIG. 1 is a perspective view of a dental apparatus with a flat support part 1 of the shape of a table, in which modules 2-8 with the same width and construction height are held. Modules 2-7 record hose-bound instruments 9-14. The instruments 9-11 as well as 13 and 14 protrude in the shown laying or non-use position in addition to those with 15 designated front surfaces of the modules, so that the user can pull them out from these positions.

Instrumentet 12 befinder sig i den viste ikke-brugsstilling i en 30 sænket stilling, i hvilken instrumentspidsen ligger bag frontfladen 15.The instrument 12 is in the position of non-use shown in a lowered position, in which the instrument tip lies behind the front surface 15.

Modulerne 5 og 8 er "tomfelter" eller såkaldte "tomfeltsmoduler", som enten overhovedet ikke indeholder noget instrument (modulet 8) eller i hvert fald intet i ikke-brugsstillingen over frontfladen 15 udragende instrument. I udførelsen uden instrument (modulet 8) kan der i modulet 35 være anbragt forskellige forsynings-, styre- og kontrolindretninger.The modules 5 and 8 are "empty fields" or so-called "empty field modules", which either do not contain any instrument at all (module 8) or at least no instrument projecting in the non-use position above the front surface 15. In the version without instrument (module 8), different supply, control and monitoring devices can be arranged in the module 35.

DK 152006BDK 152006B

- 4 - I fig. 2 og 3 er skematisk vist flere muligheder for en anbringelse af modulerne og af instrumenterne/· hvorhos "tomfelterne" eller tomfeltmodulerne" for enkeltheds skyld er vist skraveret og stillingen af instrumenterne eller disses optagelsesbøsninger er antydet 5 ved cirkler. Instrumenterne 9-14 er ved anbringelse ifølge fig. 2 anbragt i to hovedsagelig vandrette planer I, II indenfor modulernes byggehøjde (h), nemlig med stigende anbringelse fra venstre mod højre under dannelse af følger A,B, som er dannet dels af instrumenterne 9/ 10 og 11 (følge A), dels af instrumenterne 13 og 14 (følge B), hvorhos 10 "tomfeltmodulet 5" befinder sig mellem følgerne A og B. Det kan være fordelagtigt at anbringe tilbagevendende ensartede følger, fx. A, A eller B, B/ mellem hvilke der er anbragt et tomfelt med samme modulbredde eller et tomfeltmodul. Særlig fordelagtigt er en anbordning B/B med alternerende anbragte håndstykker i det ene eller det andet plan.- 4 - In fig. 2 and 3 show diagrammatically several possibilities for a placement of the modules and of the instruments / · where the "empty fields" or the empty field modules "for simplicity are shown shaded and the position of the instruments or their receiving bushings is indicated 5 by circles. placement according to Fig. 2 placed in two substantially horizontal planes I, II within the construction height (h) of the modules, namely with increasing placement from left to right, forming sequences A, B, which are formed partly by instruments 9/10 and 11 (sequence A), partly of the instruments 13 and 14 (sequence B), in which the "empty field module 5" is located between the consequences A and B. It may be advantageous to place recurring uniform consequences, eg A, A or B, B / between which an empty field with the same module width or an empty field module is arranged, and a B / B arrangement with alternately arranged handpieces in one or the other plane is particularly advantageous.

15 Medens instrumenterne eller disses optagelsesbøsninger ved det i fig. 2 viste skema er anbragt hovedsagelig i to vandrette planer, I, II, er der ved den ligeledes mulige udførelsesform ifølge skemaet i fig. 3 anbragt grupper af tre instrumenter i tre forskellige planer I - III, ligeledes i stigende anbringelse fra venstre til højre. Hver tre 20 instrumenter danner her atter en følge C, hvorhos der mellem følgerne findes et tomfelt eller et tomfeltmodul.15 While the instruments or their receiving bushings at the position shown in FIG. 2 is arranged mainly in two horizontal planes, I, II, in the equally possible embodiment according to the diagram in fig. 3 placed groups of three instruments in three different planes I - III, also in increasing position from left to right. Each of the 20 instruments here again forms a sequence C, where between the sequences there is a blank or a blank module.

Den viste anbringelse af instrumenterne er tænkt til brug for en højrehåndet person. Til brug for venstrehåndede måtte instrumenterne -set fra venstre mod højre - ikke være anbragt i stigende, men i falden-25 de anbringelse, ligeledes under dannelse af den viste instrumentfølge og under indskydning af et tomfelt eller et tomfeltmodul mellem to følger.The arrangement of the instruments shown is intended for use by a right-handed person. For left-handed use, the instruments - seen from left to right - must not be placed in ascending, but in descending position, also during the formation of the instrument sequence shown and during the insertion of a blank or a blank module between two sequences.

De samme plan ved siden af hinanden anbragte instrumenter 9 og 10 er, som vist i fig. 4, fastholdt med forskellig hældningsvinkel, så at 30 der ikke opræder nogen forhindring ved udtagningen af instrumenterne.The same planes next to each other arranged instruments 9 and 10 are, as shown in fig. 4, held at different angles of inclination so that there is no obstruction in the removal of the instruments.

Fig. 4 og 5 viser den ved anbringelse af optagelsesbøsningerne fremkommende stilling af instrumenterne, set fra siden til dels i snit, hvorhos instrumentet 12 er vist i udtrukken stilling.FIG. 4 and 5 show the position of the instruments resulting from the positioning of the receiving bushings, seen from the side partly in section, in which the instrument 12 is shown in the extended position.

Af fig. 4 fremgår, at hvert moduls frontflade 15 er opdelt i to 35 afsnit 16, 17, af hvilke det Øvre afsnit 16 strækker sig over ca. 2/3 - 5 -From fig. 4 shows that the front surface 15 of each module is divided into two sections 16, 17, of which the upper section 16 extends over approx. 2/3 - 5 -

DK 152006BDK 152006B

af et moduls byggehøjde og forløber hovedsagelig lodret til let skrånende fremad, medens derimod det nedre afsnit 17 forløber skråt fremad under en spids vinkel α på 45* i forhold til det vandrette plan. I denne skråflades plan ligger på hver side af modulerne anbragte håndgreb 5 18. Anbringelsen af håndgrebene 18 på den viste måde muliggør en let og bekvem flytning af apparatet, hvorhos tommelfinderen på en hånd, som griber om håndtaget, bekvemt kan understøttes på en i fig. 1 med ‘T9 betegnet støtteflade· X det øvre afsnit 16 af frontfladen 15 på modulerne 3 og 6 er an-10 bragt indstillingsorganer 20, fx. for et drejepotentiometer til indstilling af det pågældende instruments omdrejningstal på en sådan, måde, at deres betjeningsflade ligger ca. en tommelfingerbredde neden under bæredelen 11 s overkant 21. Sn anbringelse af indstillingsorganerne i dette område muliggør en hurtig fremfinding af betjeningsorganet. Når 15 man lægger hånden på oversiden af bæredelen 1, kommmer tommelfingeren tvangsmæssigt til at ligge på indstillingsorganets betjeningsorgan.of a building height of a module and extends mainly vertically to slightly sloping forwards, while on the other hand the lower section 17 extends obliquely forwards at an acute angle α of 45 * relative to the horizontal plane. In the plane of this inclined surface there are handles 5 arranged on each side of the modules. The arrangement of the handles 18 in the manner shown enables an easy and convenient movement of the apparatus, whereby the thumb finder of a hand gripping the handle can be conveniently supported on a . 1 with ‘T9 denoted support surface · X the upper section 16 of the front surface 15 of the modules 3 and 6 is arranged adjusting means 20, e.g. for a rotary potentiometer for setting the speed of the instrument in question in such a way that their operating surface is approx. a thumb width below the upper edge 21 of the support member 11. Sn placement of the adjusting means in this area enables a quick finding of the operating means. When the hand is placed on the upper side of the support part 1, the thumb forcibly comes to rest on the operating means of the adjusting means.

Det fremgår af tegningen, at instrumenterne er m,stholdt med forskellige hændningsvinkler. Den hældningsvinkel 3, under hvilken instrumenterne 11 og 14 samt disses optagelsesbøgninger 22 er anbragt, andra-20 ger ca. 38’ i modsætning til instrumenterne 10 og 13, som tillige med deres optagelsesbøsninger 23 er anbragt under en vinkel γ på ca. 20*.It appears from the drawing that the instruments are st, held at different angles of incidence. The angle of inclination 3 at which the instruments 11 and 14 as well as their receiving brackets 22 are arranged varies approx. 38 'in contrast to the instruments 10 and 13, which together with their receiving bushings 23 are arranged at an angle γ of approx. 20 *.

Det forsænket anbragte instrument 12 og dettes optagelsesbøsning 24 er anbragt under en vinkel δ på ca. 10* til 15* i forhold til det vandrette plan. Det i samme plan som instrumentet 10 og ved siden af dette an-25 bragte instrument 9 er, som det fremgår af tegningen, anbragt noget stejlere (vinkel γ')· Som følge af den forskelligt hældende anbringelse af instrumenterne i det øvre og nedre plan kan der således opnås en optimal gribeteknik.The recessed instrument 12 and its receiving sleeve 24 are located at an angle δ of approx. 10 * to 15 * relative to the horizontal plane. The instrument 9 placed in the same plane as the instrument 10 and next to it is, as can be seen from the drawing, placed somewhat steeper (angle γ ') · Due to the differently inclined arrangement of the instruments in the upper and lower plane an optimal gripping technique can thus be achieved.

Af afbildningen i fig. 4 i forbindelse med den perspektiviske af-30 bildning i fig. 1 fremgår, at grebene 18 ligger i forlængelse af den skråflade, som dannes af den nedre frontflade 17. Udformningen og anbringelsen af grebet i den viste form muliggør således en særdeles god indstilling af apparatet, som kan ske enten via en kørefod eller på kendt måde via parallellogramarm med passende drejningsled.From the view in fig. 4 in connection with the perspective view of FIG. 1 shows that the handles 18 are an extension of the inclined surface formed by the lower front surface 17. The design and placement of the handle in the shape shown thus enables a very good adjustment of the apparatus, which can be done either via a foot or in a known manner. via parallelogram arm with suitable pivot joint.

35 Den indstillelige fastholdelse af instrumentet 12, som hensigts- - 6 -35 The adjustable retention of the instrument 12 as appropriate - - 6 -

DK 152006 BDK 152006 B

mæssigt er et ekstra instrument, der benyttes mindre hyppigt end de øvrige instrumenter, skal forklares under henvisning til fig. 6. Instrumentet 12 er fastholdt i en optagelsesbøsning 24 med en længdebevægelig slæde 25, som på sin side er forskydeligt ført i to parallelle førings-5 stænger 26. Føringsstængerne 26 er fastgjort ved modulet 5's hus 27 og har en længde, som gør det muligt at føre instrumentet fra en grundstilling, i hvilken instrumentets pids ligger forsænket bag modulets forside 17 (fig. 1) til en brugsstilling, i hvilken i hvert fald spidsen og det dertil tilsluttede håndtag rager ud fra modulets åbning 10 (fig. 4 og 5).In addition, an additional instrument used less frequently than the other instruments must be explained with reference to FIG. The instrument 12 is held in a receiving sleeve 24 by a longitudinally movable carriage 25, which in turn is slidably guided in two parallel guide rods 26. The guide rods 26 are fixed to the housing 27 of the module 5 and have a length which allows leading the instrument from a basic position in which the tip of the instrument is recessed behind the front of the module 17 (Fig. 1) to a position of use in which at least the tip and the connected handle protrude from the opening 10 of the module (Figs. 4 and 5) .

Til forskydning af den bevægelige del 25 af optagelsesbøsningen 24 er der neden under bøsningen 24 anbragt en betjeningsbøjle 28.To displace the movable part 25 of the receiving sleeve 24, an operating bracket 28 is arranged below the sleeve 24.

I tomfeltmodulet 8 kan der, ligesom ved modulet 5, være fastholdt et forsænket anbragt instrument.In the empty field module 8, as in the case of the module 5, a recessed instrument can be held.

1515

Claims

Dental apparatus with a number of modules arranged next to each other in a support part / which at their front sides contain receiving bushings for hose or cable-bound instruments which, when not in use, from the openings of the receiving bushings project at least partially beyond the front sides of the 5 modules, and which - seen from the front and from left to right - for right-hand use in ascending order and for left-hand use in descending order are placed at at least two different heights (planes I, IX), forming several sequences (A, B, C), in front and / or between and / or behind which a module component (5, 8) is located outside the instrument protruding from the front surface (15), characterized in that the front and / or between and / or behind the consequences (A, B , C) arranged module components (5, 8) contain a receiving sleeve (24) with an instrument holder (25) adjustable in the depth of the module component, in whose rest position (Fig. 6) that of the carried instrument (12) is immersed, and in whose 15 working position (fi g. 5) the instrument (12) is arranged at least partially protruding relative to the front surface (15) of the module component.

Dental device according to claim 1, characterized in that the front surfaces (15) of the module components (2-8) in the lower area are rotated towards the operating side and thus form two front surface sections 20 (15, 17) which form an obtuse angle with each other.

Dental device according to claim 2, characterized in that the receiving bushings (22) in the upper surface section (16) are inclined more strongly relative to the horizontal (angle 3) than the bushings in the lower surface section (angle γ in I).

Dental device according to one of Claims 1 to 3, characterized in that the receiving bushings (23, 24) in two adjacent modules (2, 3) within a follower (A) are arranged at the same height (plane I) but with different angles of inclination ( γ, γ ').

Dental device according to claim 2, characterized in that the instrument holder (25) for the countersunk instrument (12) is arranged at the same height (plane I) as the lower surface section.

Dental device according to Claim 5, characterized in that the instrument holder (25) for the countersunk instrument (12) is arranged with a smaller inclination relative to the horizontal '(angle δ) than the other receiving bushings (23) in the lower surface section (plane I).

Dental device according to any one of claims 1-6, characterized in that the angle of inclination (β) of the higher mounting sockets (22, plane II) is between 30 * and 40 *, that the angle of inclination 5 (γ) of the receiving sleeves arranged below (23, plane I) is about 20 * and that the angle of inclination (6) of the receiving bushings (24) of the countersunk instruments (12) is cat 15 * ·

Dental device according to claim 2, characterized in that the module components (3, 6), which accommodate receiving bushings (23) in the lower surface section (17, plane I), are provided in the upper surface section (16) with operating means (20). , which is arranged immediately below the upper edge (21) of the carrier part (1), preferably a thumb width below the upper edge.

Dental device according to any one of claims 1-6, characterized in that a handle (8) is arranged on both sides of the outermost modular components (2, 8) on the carrier part (1), which extends in extension of the sloping surface on the lower surface section (17).

Dental device according to any one of claims 1 - 9, characterized in that for receiving the instruments (9 - 14) there are receiving bushings (22, 23, 24) which are open downwards and are pulled down to the lower edge. 25