Precision attachments/ orthodontic seminars
•Download as PPT, PDF•
6 likes•2,319 views
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
Recommended
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Viewers also liked (16)
Similar to Precision attachments/ orthodontic seminars
Similar to Precision attachments/ orthodontic seminars (20)
More from Indian dental academy
More from Indian dental academy (20)
Recently uploaded
Recently uploaded (20)
Precision attachments/ orthodontic seminars
- 1. Precision attachments introduction INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy. com
- 2. Defination: • This is said to be a connecting link between the fixed and removable type of partial dentures as it incorporates features common to both types of construction. • STEIGER &BOITEL: they mean to be of bodily function for a removable partial denture or bridge. www.indiandentalacademy. com
- 3. Nomenclature: • A retainer consisting of a metal receptacle (matrix) and a closely fitting part (patrix). • The matrix is usually contained within the normal / expanded contours of the crown on the abutment tooth. • The patrix is attached to a pontic / the removable partial denture frame work.- glossary of prosthodontic terms. www.indiandentalacademy. com
- 5. SYNONYM : • INTERNAL ATTACHMENT • PARALLEL ATTACHMENT • FRICTIONAL ATTACHMENT • KEY AND KEY WAY ATTACHMENT • SLOTTED ATTACHMENT www.indiandentalacademy. com
- 6. PRECISION ATTACHMENTS • IMPLIES A PARTLY or fully machined device consisting of a male and a female components which are used in restorative dentistry to retain a removable /semi removable prosthesis . –D.H. roberts . • Acc. To G.E.ray ,they are wholly or partially machined accessories used to retain a removable /semi removable prosthesis. www.indiandentalacademy. com
- 7. INTRA CORONAL ATTACHMENTS • The bulk of the soldered or cast on portion of the joint lies within the anatomical contours of the treated teeth. www.indiandentalacademy. com
- 8. EXTRA CORONAL ATTACHMENTS • Are used to join a prosthesis to a retainer , part of all of their mechanisms is outside the contour of the retainer . www.indiandentalacademy. com
- 10. HISTORY • GEORGE EVANS -1888 • PEESO -1898 • GILMORE -1913 • FOSSUME -1906 • BENNET -1904 • BROWN , BRYONT, CONDIT,GOLOBIN ,KELLY , McCOLLUM ,MORGAN , ROACH ,SORENSEN ,SUPPLEE . www.indiandentalacademy. com
- 12. RATIONALE • To be removable and replaceable without stress or strain on abutment teeth . • To permit normal anatomic contour to the abutment teeth . • To provide many years of comfortable service . • To be made of materials that are compatible with oral tissues . • Resistance to abrasion • Resistance to corrosion • To be esthetically acceptable • To require minimal amount of tooth structure to be removed • To be hygenically clean . www.indiandentalacademy. com
- 13. INDICATIONS • Movable joints in fixed movable bridge work . • To stress break , free- end saddles and bridges . • Intra coronal attachments are effective retainers for removable partial dentures . • As a connector for sectional dentures . • Sections of a F.P.D may be connected with intra coronal attachments • To lock a connector joining a saddle in the opposite side of the arch • to retain hybrid dentures www.indiandentalacademy. com
- 14. CONTRA INDICATIONS • SICK AND SENILE PATIENTS- whose manual skills are diminished. • Periodontosis. • Abnormal caries rate • Inadequate space to employ them / place them . www.indiandentalacademy. com
- 15. ADVANTAGES • The labial or buccal clasp arms can be eliminated • Precision attachments are less stressful to the abutment teeth than a conventional clasp arm . www.indiandentalacademy. com
- 16. DISADVANTAGES • TOOTH may have to be extensively cut to place the P.A . • The bulge in the crown , created by the intra coronal attachment may deprive the underlying gingival tissue of its customary massage . • The attachment is subject to wear as a result of friction between metal parts .- causing movement & injury to the abutment teeth . • The extra coronal attachment can cause irritation / inflamation . www.indiandentalacademy. com
- 17. LIMITATIONS • The clinical crown of the abutment tooth should be of adequate length • Size of the pulp tissue . • Fabrication of the P.A is technique sensitive . • It is expensive . www.indiandentalacademy. com
- 18. MECHANISIM OF ACTION • FRICTION – ACTIVE RETENSION CAN BE ENHANCED BY – spring ,leaf ,ring ,bolts ,rubber devices. • BINDING • WEDGING of conical bodies • INTERNAL SPRING • ACTIVE RETENSION www.indiandentalacademy. com
- 19. MATERIALS USED FOR MAKING THE P. A . • CERAMICOR • ELITOR • OSV • PIVITOR • STAINLESS STEEL • SILVER • LO-CAST • THERMAFIT • 20% IRIDIUM-PLATINUM • CERMACAST • PLATINUM GOLD , etc . www.indiandentalacademy. com
- 20. CLASSIFICATION Good kind &baker -1975 Intra coronal Extra coronal resilient Non resilient resilient Non resilient www.indiandentalacademy. com
- 21. Classification-2 PRECISION ATTACHMENTS Pre fabricated Semi precision Eg; Channel-shoulder-pin attachment Plastic Eg; Renefert’s unirestB , mortice rest www.indiandentalacademy. com
- 22. CLASSIFICATION -3 ACC . TO G.E.Ray Rigid articulatios Movable articulations Group-1 (vital teeth) Group-2 (non vital teeth) Group-1 –vital teeth Group-2 – non vital teeth www.indiandentalacademy. com
- 23. G.E.RAY – CLASSIFIED P. A - • INTRA CORONAL • EXTRA CORONAL –FLECHER , HUSER . • CONJUNCTORS –CUENOD , DALLA BONA , CRISMANI • ANCHORS – GMUR SLIDE BLOCK ,DALLABONA SLIDE BLOCK /DALBO STUD ANCHOR • BARS-DOLDER-BAR • ACCESSORY COMPONENTS –TRANSVERSE STABILIZERS,LOCKS,STRESS BREAKER. www.indiandentalacademy. com
- 24. Harold . W. preiskel classified as P.A Intra coronal attachments Frictional – Entirely frictional Mechanical lock Cross section – H-shaped T – shaped circular www.indiandentalacademy. com
- 25. R . VALENTINE & EASTMAN DENTAL HOSPITAL - LONDON CLASSIFIED AS : RIGID RETAINERS MOVABLE RETAINERS AUXILLARY DEVICES RIGID ATTACHMENTS( NON VITAL TEETH) ADJUSTABLE – CHAYES,MC COLLOM ,STREN , CRISMANI NON ADJUSTABLE – BEYELER , C&M-643 RIGID ATTACHMENTS (VITAL TEETH) ALL ADJUSTABLE –ECCENTRIC BONA ,GERBER MOVABLE ATTACHMENTS (NONVITAL) DALBO ,CRISMANI STRESS BREAKERS (PARTIAL DENTURES GERBER HINGE , ANCORVIS HINGE MOVABLE ANCHORAGES (NON VITAL ) BONA DOLDER BAR , ANDREWS BAR . ACTIVATORS - ISOCLIP LATCHES , BOLTS , SCREWS SCHUBIGER , HRUSKA www.indiandentalacademy. com
- 32. 15.41 – Dr.Dalla bona design – root canal anchor system www.indiandentalacademy. com
- 33. 15.42 – Prof.Dr. brunner design www.indiandentalacademy. com
- 43. Intra coronal , screwed slide attachment www.indiandentalacademy. com
- 47. Combi – snap –intra coronal attachment www.indiandentalacademy. com
- 50. Shoulder – dalbo joint with over load protection www.indiandentalacademy. com
- 52. Prospective planning in a bilateral free end saddle www.indiandentalacademy. com
- 53. Rest position – dalbo attachment www.indiandentalacademy. com
- 56. Articulated unilateral free end saddle www.indiandentalacademy. com
- 57. Articulated uni lateral free end saddle - mandibular www.indiandentalacademy. com
- 58. Pt – snap-intra coronal www.indiandentalacademy. com
- 72. Slide attachments – CM interlock &CM plasta www.indiandentalacademy. com
- 75. Slide attachment – cm interlock & G. crismani www.indiandentalacademy. com
- 79. w. Wermuth - bioloc www.indiandentalacademy. com
- 81. Dr spang mini - conex www.indiandentalacademy. com
- 104. PLACEMENT OF PRECISION ATTACHMENTS TECHNIQUE DIRECT METHOD INDIRECT METHOD www.indiandentalacademy. com