broadrick's occlusal plane analyzer

BROADRICK OCCLUSAL PLANE ANALYZER : 

BROADRICK OCCLUSAL PLANE ANALYZER P V BADWAIK

Dr. LAWSON K. BROADRICK : 

Dr. LAWSON K. BROADRICK USED FOR ANALYZING THE CURVE OF SPEE & DEVELOPING AN ACCEPTABLE CURVE OF OCCLUSION

INSTRUMENT WILL HELP IN : 

INSTRUMENT WILL HELP IN ACCEPTABLE PLANE OF OCCLUSION AMOUNT OF REDUCTION SIMPLE TRANSFER TO MOUTH HEIGHT OF CUSP TIPS SELECT ACCEPTABLE OCC. SCHEME

TECHNIQUE WAS ADAPTED BY LINDSAY D. PANKEY : 

TECHNIQUE WAS ADAPTED BY LINDSAY D. PANKEY ON ORIGINAL ANTHROPOLOGIC RESEARCH BY GEORGE MONSON ORIGINALLY APPLIED TO C.D. USEFUL : ALL / MOST OF POSTERIOR TEETH NEED TO BE REPLACED

COMPONENTS : FLAG, COMPASSES, CUTTING KNIFE & SCALE : 

COMPONENTS : FLAG, COMPASSES, CUTTING KNIFE & SCALE

PROCEDURE : 

PROCEDURE MAXILLARY CAST : FACEBOW TRANSFER MANDIBULAR CAST : IN CENTRIC RELATION ARTICULATOR IS ADJUSTED & MAXILLARY CAST IS REMOVED

INSERT THE CARD INDEX / FLAG : 

INSERT THE CARD INDEX / FLAG

FIRMLY ATTACH WITH THE THUMBNUT : 

FIRMLY ATTACH WITH THE THUMBNUT

INSERT A PIECE OF LEAD & TIGHTEN IT : 

INSERT A PIECE OF LEAD & TIGHTEN IT

ADJUST BOW COMPASS TO 4 INCH RADIUS : 

ADJUST BOW COMPASS TO 4 INCH RADIUS

RADIUS COULD BE VARIED : 

RADIUS COULD BE VARIED

ANTERIOR SURVEY POINT ASP : 

ANTERIOR SURVEY POINT ASP

ANTERIOR SURVEY POINT ASP : 

ANTERIOR SURVEY POINT ASP

MOLAR (DISTO-BUCCAL CUSP) POSTERIOR SURVEY POINT PSP : 

MOLAR (DISTO-BUCCAL CUSP) POSTERIOR SURVEY POINT PSP

CONDYLAR (ANT. OF SHAFT) POSTERIOR SURVEY POINT : 

CONDYLAR (ANT. OF SHAFT) POSTERIOR SURVEY POINT

OCCLUSAL PLANE SURVEY CENTER (O.P.S.C.) : 

OCCLUSAL PLANE SURVEY CENTER (O.P.S.C.)

OCCLUSAL PLANE SURVEY CENTER (O.P.S.C.) : 

OCCLUSAL PLANE SURVEY CENTER (O.P.S.C.)

ACCEPTABLE HEIGHT FOR MOST DISTAL TOOTH : LINE : 

ACCEPTABLE HEIGHT FOR MOST DISTAL TOOTH : LINE

PREPARATION LINE : BY OPENING CALLIPERS 1.5 mm : 

PREPARATION LINE : BY OPENING CALLIPERS 1.5 mm

ADAPT SOFTENED WAX : LINE : 

ADAPT SOFTENED WAX : LINE

OCCLUSAL PLANE CUTTING GUIDE : 

OCCLUSAL PLANE CUTTING GUIDE

PLACE IT INTRAORALLY & SCRIBE A PENCIL LINE : 

PLACE IT INTRAORALLY & SCRIBE A PENCIL LINE

INVERTED-CONE DIAMOND STONE : TO ETCH PREP. LINE : 

INVERTED-CONE DIAMOND STONE : TO ETCH PREP. LINE

FOR WAX-UP : USE CUTTING KNIFE : 

FOR WAX-UP : USE CUTTING KNIFE

MOUNT THE MAXILLARY CAST : CHECK FOR DISTANCE : 

MOUNT THE MAXILLARY CAST : CHECK FOR DISTANCE

REMOVE UPPER MODEL & HOT KNIFE – CARVE : 

REMOVE UPPER MODEL & HOT KNIFE – CARVE

BUCCAL VIEW OF OCCLUSAL PLANE : 

BUCCAL VIEW OF OCCLUSAL PLANE

CASE OF OVERDENTURE : 

CASE OF OVERDENTURE

DISCUSSION : 

DISCUSSION BROADRICK FLAG : USEFUL TOOL CENTER OF CURVE OF SPEE ESTHETICS & FUNCTION – DESIGN

RETROGNATHIC MANDIBLE : 

RETROGNATHIC MANDIBLE 4” CURVE – FLAT – CAUSING POST. PROTRUSIVE INTERFERENCES LOW Mn POST.: MAY LEAD TO EXTRUSION OF OPPOSING TEETH MAXILLARY - CR:RT RATIO < IDEAL SO, 3.75” CURVE – MORE APPROPRIATE O.P.S.C. MAY BE VARIED

NEEDLES’ IN 1923 : 

NEEDLES’ IN 1923 To ensure posterior disclusion, curve should extend through the condyle PSP: Distal molar may not be always suitable – Ant. Border of condyle CARE : Condylar guidance is not < curve of Spee – Protrusive Interferences

CURVE OF WILSON : 

CURVE OF WILSON FACILITATES LATERAL EXCURSIONS FREE OF POST. INTERFERENCES ATTENTION : WAX-UP STAGE

MONSON IN 1920 & 1932Mn. TEETH : ARRANGED TO CLOSE AROUND 4” SPHERE : 

MONSON IN 1920 & 1932Mn. TEETH : ARRANGED TO CLOSE AROUND 4” SPHERE

WILLIAMSON & LUNDQUIST IN 1983 : 

WILLIAMSON & LUNDQUIST IN 1983 INAPPROPRIATE POSTERIOR CONTACTS HYPERACTIVITY IN TEMPORALIS & MASSETER – PROTRUSIVE MOVTS ENSURE PROPER ANTERIOR GUIDANCE

SUMMARY : 

SUMMARY IT IS A VALUABLE TOOL IN PROSTHODONTICS FREE FROM POST. INTERFERENCES HIGH-QUALITY RESTORATIONS : IN HARMONY WITH A.C.G. & H.C.G.

BIBLIOGRAPHY : 

BIBLIOGRAPHY The Glossary of prosthodontic terms. J Prosthet Dent 1999;81(1):49-106. The booklet of Hanau series H2 articulator Dawson PE. Evaluation, diagnosis, and treatment of occlusal problems. St. Louis: Mosby: 1999. p. 374-381. Kuwata M, Goldman HM. Colour Atlas of ceramo-metal technology. St. Louis: Ishiyaku EuroAmerica: 1988. p. 185-200. Lynch CD, McConnell RJ. Prosthodontic management of curve of Spee: Use of Broadrick flag. J Prosthet Dent 2002;87(6):593-7.