FACE-BOW AND ARTICULATOR - Bio-Art
Contents
1. Nid 1201 40 9NIY O MYOS LNINITI MVTAQNO2 MANOS Nid TVSIONI 31V1d TIYA LANOVW 31V1d 9NILNNOW 1437 YIAOO ONIHSINIS LINOYW LANOVW 4 7118 19 YIAOO ONIHSINIS LINOYW Nid IMOdans SWVYS YIddN 4344 Nid 3QIN9 SMO 3273 4 01 1 21 NOILISOd 2141 30 dO Nid 1901 NWN109 LH9I 40 YINOO ONIHSINIA 31OH HLIM Nid TWSIONI 4IVNOg4GV2ATOd GHVGNVLS 318V1 TVSIONI LY INV YIMOT 9 318 1 TVSIONI uondu os q ESZ0NONVA 8004428 9 000143 96 0 0920dV14 292100034 edo llldyd 004498 6200V 145 8LLYNIO 81Z0dVL4 Vo 1110dV14 Z6LLNIdO OS00NVAS 61 00143 9610Nld4 19 047 1 06 043 290093 LEZONVAA 82003408 No way LV dO LV INILLAV 151 dvd cl qa y164 lou UM yoolq BuIxiy uid yoolq BuIxiyy yoolq uono uuo2 S YI0 Y90 Q BY 104 JSUSEM Y00 q UO ISULUOS meJos 14001 yoolq uono uuo 2 yuo Sd n 197 we AMOQ E I pueq ose 497 ld Je3 UOL BINU9PI f poyy Qur ld Je3 14619 Use Mmog a2e 4 2 ld SON yeys 14 SON BUM MOQ 998 A noddns o ld SON Jeq 5500 Jeq 5 ejuozuoH 9Nse 3 noy im Jeg SSO O ay XII O 9991 MmaJos Bula uondu os q 00XId4J4 9000314 92000184 90000 144 100dW14 80000 Ida Z000S09S 6E00dOdA G8209dVA 6000V 1 12 cedg0dNVA 812. M3YOS Nid TVSIONI 31714 TIYA OLL3N V N 31 14 9NILNNON TIYA ONILLIS DILINYW Nid 4dIn9 31V1d 1437 391430 9 LL3NN38 1437 SIND 1337 391430 ONILSNPGY STONY LL3NN38 dO YOLVIIONI NOLLISOd M3A092 ONIHSINIS AITINd M349S AGIND 4YTAQNO 3 1 301 1387 NOILVOISILNAG 13901N ONIY O 34119 4YTAQNO JWY 4 4344 dO 4907 Nid 14OddNS AWVYs 4344 321 30 ONILSNPGV STONY L13NN38 SHL XId OL MIYOS 391430 9 STONY LL3NN38 dO HOLVOIANI NOLLISOd Nid 048 3NOOI1IS SNIZITI8V1S AGIND YYIAGNOD 391430 9 STONY LIINNIS 9014 V AWVYs 4344 HLIM Nid TVS N YOLVOIGNI NVTd TVSTT220 NINTO LHOIY dO 43402 ONIHSINIA 41VNOgdV2A10d GUVGNVLS ITAYL TVS N V INV YIMOT MINIS ITAYL TVS N uondl os q S Tci 7 NOLYINIILYY 1911 1 Vd Li 01003409 28003409 0920dV14 89209l1d4 v Z00034 OOLVIONO llldyd V004498 6200V 145 96 0 9 000143 00 ZL00INDS 86 09043 9 04 1 80003409 9970XIdd ELLLOLIO 6LEOANVO g920V414 16 4 660034 9 6S20SOd4 0 4 EZ00INOS SZOOH IVS OvZOWVYS 0920NId4 eSLONOVA 19 047 1 900SSW4 LEZONVAA 82003408 No way y154 YOLVOIGNI NVTd TVSN1000 9 31V1d INILNNOW Nid 3QIN9 31V1d 9NILNNOW ONILLIA OLL3N V N NINNTOO 1441 40 YIAOO ONIHSINIA 1N3W313
3. 08 3 4 Mounting the Mandibular Cast 08 3 5 Particularities of the Rail Mounting Plate 09 04 Special features of the Bio Art Articulators 10 05 Special features of the Standard Face Bovvy 11 DO ACCESSONCS cn scab a apd a x m NAPAKA GRAB a 11 3540 0000 6 12 08 Technical Service susur EA sa aaa Ra A al al E O AEE a O 12 09 a A e NA ank 13 10 Part List Articulator 4000 S 14 11 Part List Articulator A7 Plus 13 12 Parn List Arniculator AL FIX i242 agua ERA E EEO 8 ga B hii s le b 16 13 Par List Standard Face Bov 17 ED 7 INTRODUCTION www s NMHNII IMPORTANT NOTE Before using your BIO ART articulator please read carefully all the Instructions Manual The articulator is an instrument used to simulate the maxillo mandibular relation and movements of a patient in a laboratory with the purpose of studying the occlusion and production of dental devices that will be used by the patient These devices include complete dentures partial dentures bridges crowns and bite plate among others The face bow is an instrument used to register the position of the patient s dental arcade in relation to the skulland transfer this record to the articulator
4. The BIO ART semi adjustable articulators are Arcon type conventional equipment models 4000 S A7 Plus and A7 Fix and Non Arcon type model EVA Therefore the mounting technical procedures are the same for these articulators This Manual contains only basic and simplified information regarding the use of the equipment which do not replace the need of a specific course of Occlusion and or Prosthesis offered in many Teaching Institutions and Dental Faculties as a compulsory discipline IMPORTANT NOTE The use of the equipment by professionals not qualified can cause damage or harm to the product and or patient The articulator and face bow s use are restricted to qualified professionals It is important to emphasize however that the semi adiustable articulator and face bow provide a simple fast and highly precise way of reproducing the human mandible movements enabling the dental professional to carry out corrective and restorative dentistry tasks more easily rapidly and at lower costs than those of traditional time consuming techniques involving expensive and highly complex equipment Furthermore the semi adjustable articulator and face bow produce far more accurate results than those produced by simple hinge articulators which involve arbitrary mounting of the mandibular cast on the device and whose movements are also limited The use of the semi adjustable articulator and face bow is therefore recommended for most prosthetic
5. it fig 10 and 11 To ensure proper registration ask the patient to remove his thumbs from the bite fork and check if the fork and the face bow are stable and immobilized fig 12 When using the articulator model 4000 S record the approximate intercondylar distance whose reading is taken on the front edge of the face bow Standard The three numbers 1 2 and 3 separated by a reference mark correspond to the intercondylar distances small medium and large When the reference mark is aligned with the distance indicator always use the smallest distance for the patient This information should be registered in the patient s records for subsequent adjustment of the articulator Note In other articulator models the intercondylar distance is fixed at an average of 110mm and the intercondylar distance is not adjustable In this case disregard the above described registration of the face bow y34 g Loosen the wing nut of the nosepiece and remove the nazion relator assembly from the face bow Then loosen the central wing nut of the face bow and hold the cross bar of the bow at the same time the patient opens the mouth slowly removing the whole set carefully fig 15 16 and 17 Vog J FIG 15 FIG 16 FIG 17 2 2 TOTALLY EDENTURELESS PATIENT a When registering totally edentureless patients with the face bow use the special edentureless fork or Contifork optional to maintain the prove plate and roller wax b After
6. 0001340 260041 7 v8209dVA 9 000 144 8LOOLSHA OcOOAYOS 0 00ZNdd G00021VLS 9000dXAIS Gc00 IOWA C9EOX1414 Lo00 1485 10 way 2 amp MD 4 CYVGNVLS LSITLYVd ELA y174 k bio art BIO ART EQUIPAMENTOS ODONTOL GICOS LTDA Rua Teot nio Vilela 120 Jd Tangar 13568 000 S o Carlos SP Brasil Tel 16 3371 6502 Fax 16 3372 5953 MS 103682 4 www bioart com br facebook com bioartequipamentos bioart bioart com br Rev CMAN0014 j Mar 2015
7. LAVHS INAWATA 3140 1 AHVANVIS ITAYL TVS ON Nid TYSIONI 31V1d IVA S 0007 INVES 4344 MANOS Nid TVS ON 1437 391430 ONILSNPAV STONY LL3NN38 1437 SGIND 1437 391430 ONILSAPGY STONY LLANNA 40 YOLVOIGNI NOILISOd 1447 HSNA YVTAGNOO 344 MANOS 31V1d ONILNNOW 13 301 4YTAQNO MANOS INIM AGIND YVIIONOD A3TINd FIGNIdS ONIONVAXI INY LIWOYOIN LHOIY HSNA YVTAGNOO 301430 LSNPAV STONY 113NN38 JHL XId OL MANOS LHOIY 391430 INILSNFAY STONY LL3NN38 dO YOLVOIGNI NOILISOd LHOIY 301 0 Nid 3QIN9 3 30V LHOIS 391440 ONILSNPGV STONY L13NN38 Nid X09078 INIXI4AY Nid 3QIN9 31V1d ONILNNOW 1 31V1d TIYA ONIY O GNV O11SVT4 ONIZITIAVLS INIINITI 31AGNOO ONILLI4 OLL3N V N S 0007 YAMOT uo diuo5s d HUN s 0 4 28003409 82004428 8S00LSH4 LESLSINO ESOONIda 6200V 145 9c00 V44 004498 YL00H TYS 19011094 8S20SOd4 0900H9dA 01004458 100X143 80004428 L900Q M4 27009 6900 8 660034 9 6S20SOd4 99011094 2900014 GLOOH TVS pestaldo 9 2009lda 0 00093 99 0 690LNVAA 030 Yun 000V JOLV INDILYV 1SIT1 LUVd Ol 144 4INVM4 HIddN MIYOS ILVId ONILNNOW 4INVM4 43401 MANOS 31 4 INILNNOW NINN109 1441 40 43402 ONIHSINIA Nid 44In9 SMOS 39V4 1N3 4713 YYIAGNOD CNV INOOITIS 9NIZITIAVLS M3409S 1N3N313
8. Technical Instructions Manual FACE BOW AND ARTICULATOR bio art www bioart com br Ce NOTE All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any electronic mechanical photocopyng recording or other means without the prior writen consent of Bio Art Equipamentos Odontol gicos Ltda Authorised Representative in the European Community Obelis s a Boulevard General Wahis 53 1030 Brussels BELGIUM Tel 32 2 732 59 54 Fax 32 2 732 60 03 E Mail mail obelis net H CONTENTS 01 Introduction kq 7 7 7777777 7 01 02 Standard Face Bovv registration procedure 02 2 1 Dentate and partially dentate patientS 02 2 2 Totally edentureless patient 04 03 Mounting the casts on the Articulator 05 3 1 Preparing the Articulator 05 3 1 1 Articulator Model 4000 S 05 3 1 2 Articulator Model A7 Plus 06 3 1 3 Articulator Model A7 ES a lasa yapa DE a 06 3 2 Mounting the upper CAS 07 3 231 PONG ps a vers baa a bad NAA DY buxa a w s ss s 07 3 3 nterocclusal Registration
9. ally moved so that it can be placed in the position desired by the operator fig 64 To withdraw the Nose Piece Support make a movement of twist to facilitate its removal fig 65 Magnetic Mounting Metallic Mounting Rail Mounting Adjustable b Plate Plate Plate Platform a Ear Fox Broadrick Toothless Fork Adjustable Incisal Case Ruler Flag Adjustable Table Metallic Pila ED 7 SAFETY RULES This manual only contains basic and simplified information regarding the use of the instrument and under no circumstances it is a substitute for a proper training course The articulator and face bow are products aimed at the exclusive use of qualified dental professionals e The Bio Art face bow is designed for use with Bio Art s own articulator and vice versa Although the Standard face bow is compatible with other articulator models its use with similar models should be consulted e Bio Art articulators are not interchangeable i e the casts mounted on one articulator model should not be transferred mounted to any other articulator Therefore Bio Art does not guarantee precision when casts mounted on one articulator are transferred to another The only Bio Art articulators which are interchangeable are those which are calibrated in the factory Thus for safe and precise interchangeability casts should be transferred only between calibrated articulators e Before using the articulator and
10. des angles at 30 and the Bennet at 0 fig 29 and 30 Then push back the upper part of the central lock until feel the click locked position fig 31 PS In order to make sure that the Articulator A7 Plus is totally locked at the centric position check if the 2 locks left and right are at the locked position PA FIG 29 FIG 31 3 1 3 Articulator Model A7 Fix Aiming as main characteristic simplicity and easiness to work the A7 Fix Articulator was developed with the Bennet and Condyle angles fixed at the average of 15 and 30 respectively The intercondilar distance was also fixed at the average of 110 mm Therefore this model does not require preliminary adjustments for these components such as the other models previously mentioned In order to lock the Articulator A7 Fix in the centric position there is an innovative system with two lateral pins denominated centric lock pin This pin has 3 main positions first position totally closed locks the articulator in the centric position picture 32 second position intermediate releases the articulation movements picture 33 and third position allows to remove the upper from the lower frame picture 34 FIG 33 FIG 34 Pba 3 2 MOUNTING THE UPPER CAST 3 2 1 Standard face bow a FIG 39 FIG 40 d O F G 41 O The Standard face bow should only be used with the articulator model 2000 4000 S and 5000 It should no
11. ear warranty starting from the date of the device purchase invoice The warranty is carried out exclusively by the authorized distributor and includes any manufacturing defect being provided through the repairing of the product and subjected to the following requirements That the product has been used correctly in accordance with the instructions described in the user manual The claim is followed by the invoice and registered within the warranty period accompanying a report with description of the damage and product serial number The product is handled transported and stored with care The costs of transport from and to is paid by the customer Warranty limitations Natural wears and tear of parts e Misuse falls or accidents Inadequate transportation Repair by unauthorized person Use in disagreement with the features and purposes ofthe device e Wear from exposure to adverse conditions humidity cold and heat Damage from lack of cleaning or maintenance with inappropriate products In case of doubt contact the manufacturer BIO ART EQUIPAMENTOS ODONTOL GICOS LTDA Rua Teot nio Vilela 120 Jardim Tangar CEP 13568 000 S o Carlos SP Brasil Tel 55 16 3371 6502 Fax 55 16 3372 5953 website www bioart com br E mail bioart bioart com br CNPJ 58 538 372 0001 56 I E 637 034 447 113 y134 Nid GNV 2119 3 ONIZITIGVLS 44401 MIYOS 31V1d INILNNOW MANOS ITAYL TVS ON
12. face bow the professional should check the instrument for possible damage distortion of the incisal pin face bow s parallelism proper centricity of the incisal pin in relation to the lower frame etc Should any abnormality be found Bio Art s Technical assistance or Authorized Representative should be contacted immediately The face bow should be cleaned with warm water prior to its use The Bite Fork must be autoclaved and the Earpieces disinfected with a bactericide or with 70 alcohol Bio Art recommends only warm water for the general cleaning of the articulator and face bow e When using godiva or any other registration material special care should be taken to avoid excessive heating of the material which might burn the patient s mouth Bio Art urges the user to carefully follow the instructions of the registration material manufacturer e Because the articulator is a precision instrument it should be handled transported and stored carefully Bio Art provides a plastic case optional accessory exclusively designed to accommodate the articulator and to facilitate its transportation 8 TECHNICAL SERVICE l 5 8 For your safety the technical service of this product should be made by people companies authorized by BIO ART Please contact us or the distributors where the product was acquired Our web site is www bioart com br y124 ED 9 GUARANTEE Bio Art Equipamentos Odontol gicos Ltda grants 1 y
13. lar lower cast in the articulator you should have a record correlating the upper and lower dental arches according to the purpose of the mounting in one of the following ways Maximum Intercuspation MI Centric Relation CR These records can be made using material of the operator s preference wax resins addition or condensation silicon etc fig 54 and 55 To obtain the M I registration place the selected material to register the patient s arcade and ask him to occlude There are several techniques to obtain the R C registration i e Peter Dawson s technique bilateral manipulation of the mandible Lucia s JIG technique and James Long use of plastic spacer among others Note For totally edentureless patients this registration is made when the upper and lower wax rollers are joined based on the correct dimensions of the patient 3 4 MOUNTING THE MANDIBULAR CAST a Place the Incisal Guide Pin in the Upper Frame of the articulator with its rounded tip pointing downward so that the upper and lower frames are parallel i e on the zero marking ofthe Incisal Guide Pin fig 56 b Now turn the articulator upside down on the laboratory bench and affirm the lower cast with retentions and previously hydrated upon the interocclusal register that should be placed in the mounted upper cast fig 57 In totally edentureless patients this was obtained by joining the wax rollers together c We recommend fixing the cast
14. occlusal and rehabilitation work The technique is simple fast and easy offering highly satisfactory results for both the patient and professional 14 H 2 STANDARD FACE BOW REGISTRATION PROCEDURE a FIG 2 FIG 3 FIG 4 2 1 DENTATE AND PARTIALLY DENTATE PATIENTS By using bite registration material godiva wax among others three points on the fork are made one frontal point in the exact centre of the fork and two points at the back one ateach semi arch ofthe fork fig 1 Position the bite fork so that the midline of the fork handle is aligned with the midline of the maxilla and place iton the upper teeth holding it firmly in place until the registration material hardens fig 2 Only a small amount of registration material should be used since the purpose is to record only the cusp tips of the teeth while keeping the fork as immobile as possible fig 3 Afterwards it is advisable to try the cast on the registration to check its stability absence of clearance fig 4 Note Alternatively a pre impression of the teeth can be made on the upper model and then refined in the mouth In the case of patients who have partially jagged teeth itis important to locate points that hold the fork stably in place despite the missing teeth and the points used for the transfer Recline the patient in the chair to reduce the induction of tensions on the fork set and face bow asking him to keep the f
15. ork in the same position supporting the thumbs against the maxilla fig 5 Take the face bow to the patient and introduce the fork fixation assembly into the bite fork handle assuring that the wing nut is upside down fig 6 Then carefully insert the face bow earpieces into the patient s external auditory meatus as if you were putting a stethoscope into his ears fig 7 24 d Place the nasion relator on the face bow cross bar when using the face bow Standard For both models centre the nosepiece on the patient s nasion Attention to the correct position of the nazium relator as indicated in picture 7 5b The earpieces should now be carefully positioned as deeply as possible in the patients auditory meatus and the nosepiece should be gently pressed against the patient s nasion while tightening the wing nuts of the nazion relator FIG 8 assembly fig 8 Afterwards tighten the three screws of the Standard face bow fig 9 and 14 e With the nazion relator and the face bow tightened and the patient holding the fork immobile push the fork fixation assembly forward sliding it on the fork handle until it is as close as possible to the lips without touching them in order to achieve increased stability Then tighten the wing nuts of the fork first the double articulated nut connection block fig 3 and then the horizontal slide bar nut so that the fork is supported at one end of its handle resulting in less tension on
16. qeisnipy lfuy jouuag ave sojejnoipie ajqeabueyoJojul SUW oIg l l jeuondo ajqeabueyssa u AMn lqe snipy 7 AIn lqe snipy aping Jej puos sowed JOMO pue Joddn y u M q Wa sAs Bululor LUG S S s uy oig 2 bupuedxa Snid LV XIJ JY S 000P IP L LVOZOLU ay uBnolu epew juouysnipy 1 MD 5 LV LYV Old FHL AO 5 1 TVISddS YA Pila H 5 SPECIAL FEATURES OF THE STANDARD FACE BOW lll _ gt sta F 4 NG FIG 64 gt FIG 65 IP 6 ACCESSORIES r Ra Lo Ng Fork Camper s Support Table p 5 1 STANDARD FACE BOW The Bio Art Standard model is simple and easy to work with It has manually tightened wing nuts to fix the fork eliminating the inconvenient use of the key In this model the registration of the position of the patient s upper dental arcade in relation to the skull is transferred to the articulator by setting the complete face bow in the upper frame assembly of the articulator chapter 3 Item 3 2 1 The Standard Face Bow can be used with the all Articulators models its use is forbidden with the Models EVA Fix and EVA Plus 5 3 INSTRUCTIONS FOR USE THE NOSE PIECE SUPPORT Slide the Nose Piece Support in the Face Bow s Cross Bar through the groove pressing it until realize a slight click indicating that the support is fully embedded The support may be later
17. r finishing on the edge of the mounting plate should be done in such way to avoid excess of plaster around the edge and to allow the splitting and the sliding of the plate afterwards i e during the removal procedure fig 61 b Before the removal of the cast the plaster contained in the retention hole should be removed with an instrumental tip The function of this retention hole is to avoid displacement of the plate when handling the cast fig 62 c Once the plaster contained in the retention hole is removed the cast should be firmly held and a slight strike must be applied on the edge of the plate in the direction of the arrows stamped in the plate lower face This procedure will detach the mounting plate from the cast and enable its removal through the sliding fig 63 PS Once the cast is removed from the rail mounting plate we do not assure its returning to the initial precision since it dependes on the technique applied and quality of the materials used in the process specially the plaster bga XIJZY PON S OOOf POW SNIdZV POI 5 WGIIIIzIOII 6uu o pueg onsela xx UIS S S UOHEZI IGE S uondo pazipsepuejs ay ul paljddns JOUUBI S 000F l poul JUO sf poul Jojejnome WW OLL 12 pexi WW OL 1E paxil qe sn pv 3JUB S1G Je Apuoose u asay Buowe SISEI y Jo Ajyiqeabueyosajul 10 MOJ e O Jainjoejnuew v Aq pazipsepuejs aiqeisnipy GL 12 paxi4 ai
18. s with rubber bands or staples fixed with godiva or wax so that they remain in position until the plaster hardens Place a small amount of plaster on the lower part of the mandibular cast and a small amount on the mounting plate of the lower frame of the articulator to fill in the gap between them fig 58 84 d Make sure the condylar elements are duly positioned and close the lower frame until the Incisal guide pin touches the Incisal table Afterwards fasten the articulator frames using rubber bands to prevent possible distortion occurred by the plaster expansion fig 59 Note The sides of the mounting plates which are in contact with the articulator frames should be devoid of plaster FIG 59 After the plaster hardens turn the articulator back to its upright position lower frame resting on the laboratory bench and complete the work filling the cast fixation towers with plaster for the finishing touches fig 60 FIG 60 FIG 61 FIG 62 FIG 63 3 5 PARTICULARITIES OF THE RAIL MOUNTING PLATE The Rail Mounting Plate was specially developed to allow the removal of the plaster cast without the needs of breaking it as occurs in most of the conventional mounting plates In order to use of this resource satisfactorily the professional should take some cares mainly during the confection of the cast and afterwards when handling the removal of the plate occording to the following procedure a The plaste
19. t be used with the EVA Fix and EVA Plus models Fix the face bow Standard to the upper frame of the articulator by fitting the earpiece holes on the small pins located on the external edge of the condylar guide fig 39 Support the front part of the Articulator Upper Frame on the cross bar of the face bow Close the face bow firmly by fastening the central face bow wing nut and placing the whole face bow together with the upper frame on the lower frame of the articulator fig 40 41 and 42 Place the upper cast with retentions and previously hydrated on the fork registration Lift the Upper Frame of the articulator depositing a small amount of plaster on the Upper Mounting Plate and a portion on the top of the Upper Cast Then using one of your hands keep the fork and the cast in position avoiding any movement of the Bite Fork and carefully hinge the Upper Frame until it touches the cross bar of the face bow Wait for the plaster to harden fig 43 Note The sides of the mounting plates which are in contact with the articulator frames should be devoid of plaster Important In order to achieve greater stability and precision during the transfer procedure it is advisable to use the Fork Support optional and plaster type IV fig 44 Remove the face bow from the articulator b 4 FIG 54 FIG 55 FIG 58 Wax registra Silicon A 3 3 INTEROCCLUSAL REGISTRATION To set up the mandibu
20. the patient s registration on the wax roller heat both handles of the fork slightly in a flame and press them on the upper wax roller which was previously joined to the lower wax roller or not with the midline of the fork handle aligned with the midline of the patient fig 18 19 c Place the set fork vvax rollers in the patient s mouth inserting it on the alveolar edges fig 20 Note When carrying out the registration with vvax rollers which were previously joined ask the patientto keep itin position and close his mouth d Repeatsteps c to 9 ofitem 2 1 FIG 18 FIG 19 FIG 20 44 H 3 MOUNTING THE CASTS ON THE ARTICULATOR HH FIG 21 a FIG 22 b FIG 23 FIG 24 c 3 1 PREPARING THEARTICULATOR The adjustments of the articulators mentioned below are only used to mount the casts on the articulator However the professional may choose to use other angulation techniques to personalize the settings The marks 1 2 and 3 ofthe Face Bows are used to adjust the intercondylar distance small medium large when the mounting is carried out with the Articulator Model 4000 S For the other articulators models it must be ignored 3 1 1 Articulator Model 4000 S Fix the condylar elements into the lower frame holes according to the patient s registration 1 2 and 3 made with the face bow With the help of the condylar element shaft tighten the condylar elements slightly fig 21 Adj
21. ust the same intercondylar distance in the upper frame expanding or closing the condylar guide with the micrometric expanding spindle fig 22 Note To facilitate adjustment of the intercondylar distance ofthe upper frame using the micrometric spindle leave the wing screw of the condylar guide inclination slightly loose The relationship between the intercondylar distance and the positioning of the condylar guide is given as follows Small without expansion condylar guide totally closed Medium first marking on the condylar guide axle Large second marking on the condylar guide axle Important A fine adjustment should be made to prevent lateral movements of the upper frame in relation to the lower frame observing that the position of the condylar elements should be touching the posterior and superior walls of the condylar guide and the lateral of the bennet angle adjusting device simultaneously fig 23 i e the reference mark for the adjustment of the intercondylar distance in the condylar guide axle does not always coincide with the correct position of adjustment of the upper frame A fine adjustment is therefore necessary using the expanding spindle Adjust the condylar guide at a 30 angle and a negative Benett angle fig 24 and 25 assuring the stability of the articulator at a central position gt 54 3 1 2 Articulator Model A7 Plus To facilitate the mounting of the casts adjustthe Condylar Gui
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