CLASPS /fixed orthodontic courses by IDA

67 %
33 %
Information about CLASPS /fixed orthodontic courses by IDA

Published on May 8, 2014

Author: indiandentalacademy


CLASPS: CLASPS PowerPoint Presentation: INDIAN DENTAL ACADEMY Leader in continuing dental education PowerPoint Presentation: The name clasp is derived from a French word “UYPTAN” which means “ to embrace” . Clasps are the retentive components of the orthodontic appliances. PowerPoint Presentation: RETENTION :- is the means whereby the displacement of an appliance is resisted. IDEAL REQUIREMENTS: IDEAL REQUIREMENTS Unobtrusive. Not impinge. Close contact to the tooth. Usable in both deciduous and permanent dentition. Adequate retention. PowerPoint Presentation: No active force on the anchor tooth. Rigid Easy to fabricate and also replace if needed. Not interfere in the growth of jaws and eruption of teeth. USES: USES To secure the appliance in position To prevent rolling of appliances To resist forces of displacement To provide retention & anchorage For engaging elastics CLASSIFICATION: CLASSIFICATION A. Hand Made Machine Made. B. Single tag arm Double tag arm MODE OF ACTION: MODE OF ACTION Clasp engage onto the undercuts (constricted areas on the teeth.) Two types of undercuts. Buccal / Lingual Cervical undercuts. Mesial / Distal Proximal undercuts. CIRCUMFERENTIAL CLASP: CIRCUMFERENTIAL CLASP PowerPoint Presentation: Circumferential clasp / C-Clasp / 3/4 th Clasp. It uses the bucco-cervical undercut. 2 nd molars and canines. Single retention arm. 1mm wire used in molars. PowerPoint Presentation: Advantages: Advantages Good retention. Easy to fabricate. Single occlusal crossover wire. Easy to replace. Disadvantages: Disadvantages Not on semi-erupted tooth. Decalcification of cervical margin. Gingival irritation. Plaque accumulation enhanced. Easily distort. JACKSONS CLASP: JACKSONS CLASP PowerPoint Presentation: V.H. Jackson 1906 Jacksons Clasp / Full Clasp / U Clasp. Both bucco-cervical and proximal undercuts. 0.7mm to 1mm. PowerPoint Presentation: Advantages: Advantages Simple design Adequate retention. Disadvantages: Disadvantages Not useful in partially erupted teeth. Difficult to adjust. Not on unfavourably inclined tooth. SOUTHEND CLASP: SOUTHEND CLASP PowerPoint Presentation: Most common for anterior anchorage. Single arrowhead between Central Incisors with wire following the gingival margin. PowerPoint Presentation: Advantages: Advantages Unobtrusive. Good retention. Even be used if Incisors are proclined. TRIANGULAR CLASP: TRIANGULAR CLASP PowerPoint Presentation: Also called as MODIFIED ZIMMER CLASP. Excellent retention by the single arrowhead in the interproximal area. Free end towards distal to facilitate the engagement of elastics. 0.7mm wire PowerPoint Presentation: Advantages: Advantages Easy to fabricate. Excellent retention. Pre fabricated available. Elastics can be engaged. Disadvantages: Disadvantages Not useful if adjacent tooth is absent. Used as secondary / additional retention. BALL END CLASP: BALL END CLASP PowerPoint Presentation: Action and location similar to triangular clasp. Pre fabricated available. Can be made by adding solder to end of a wire. PowerPoint Presentation: Advantages: Advantages Easy to fabricate. Single occlusal interference. Less gingival irritation. Easy to replace. Disadvantages: Disadvantages Short arm makes adjustment difficult. Cannot be used for primary retention. Cannot be used in absence of adjacent tooth. SCHWARZ CLASP: SCHWARZ CLASP PowerPoint Presentation: Also called as ARROWHEAD CLASP. A.M. Schwarz 1935. Mesial and distal undercuts of the teeth. PowerPoint Presentation: Advantages: Advantages Reliable retention. Does not interfere in posterior occlusion. More length of wire hence more flexible. More easy to adjust. Enhances eruption. Disadvantages: Disadvantages Difficult to fabricate. Needs special plier. Irritates soft tissue. Tends to separate teeth. Is bulky hence less patient compliance. CROZAT CLASP: CROZAT CLASP PowerPoint Presentation: Crozat in 1920 Along with the u clasp another curved wire is soldered on the base (Crescent). Strong retention is possible PowerPoint Presentation: ADAMS CLASP: ADAMS CLASP PowerPoint Presentation: Adams clasp / modified arrowhead clasp / liverpool clasp / universal clasp. C. PHILIPS ADAMS in May 1950. Most widely used clasp. Distobuccal and mesiobuccal undercuts. Does not separate teeth like a arrowhead clasp. 0.7mm posteriors 0.6mm anteriors. Parts: Parts BRIDGE 2 ARROWHEADS 2 TAG ARMS BRIDGE: BRIDGE Is 2/3 rd the mesio-distal width of the tooth, or slightly less then the distance between mesiobuccal and distobuccal undercuts, or length should be equal to the intercuspal distance. Is 1-2mm away from the buccal surface of the tooth. Is at 45 o to the buccal surface of the tooth. Should be straight. Arrowheads: Arrowheads They should lie in the disto and mesio buccal undercuts. Shaped according to the curve of the gum margins into the interdental papilla. Long enough to keep the bridge at a proper distance. Should not touch the adjacent teeth Tag arms: Tag arms Closely fitted to the contact points, down to the interdental embrassure. Space between the tag arms and palate for flow of acrylic. No sharp bends. PowerPoint Presentation: FABRICATION PowerPoint Presentation: Advantages: Advantages Small,neat and unobtrusive. Any tooth. Both deciduous and permanent dentition. Even on semi erupted tooth. No specialized pliers required. Can be modified as needed. No. of modifications are available. Disadvantages: Disadvantages Unwanted palatal tipping if gets activated. May lead to elongation of tooth if is fitting tightly. Can be repaired only if fractured through the arrowheads. Cannot be given on proclined anteriors. PowerPoint Presentation:  MODIFICATIONS Anterior Adams: Anterior Adams 0.6mm Also called double clasp. With distal extension/ traction hook: With distal extension/ traction hook To engage elastics Not given if sulcus is shallow. With eyelet: With eyelet With a soldered hook: With a soldered hook With a soldered tube: With a soldered tube With a single arrowhead: With a single arrowhead With accessory arrowhead: With accessory arrowhead Smart clasp: Smart clasp PowerPoint Presentation: It is used in magnetic activator devices Wire used 0.7mm Bend 2mm loop on each side along with arrow head It can be modified to double clasp on premolars and molars for extraoral traction ADVANTAGES: ADVANTAGES Coils of the smart clasp increases spring back property. Reduces frequent tightening. Can be used with any type of removable appliances like bite blocks, palatal expanders. Delta clasp: Delta clasp PowerPoint Presentation: William J. Clark Used in twin block appliances Retentive loops were triangular in shape hence the name “Delta” Retains the basic elements of Adams clasp like retentive loops and a buccal bridge ADVANTAGES: ADVANTAGES Design of the closed loop does not open up with repeated removal. Less subject to breakage. Provides excellent retention on lower premolars. Suitable for use on most posterior teeth. Thank you: Thank you Leader in continuing dental education

Add a comment

Related presentations

Related pages

Orthodontic Removable, Non Fixed Appliances & Braces with ...

Orthodontic Removable, Non Fixed Appliances ... Basic removable appliance designs / fixed orthodontic courses by ... Indiandentalacademy ida ...
Read more

orthodontic wire bending principles/ Indian Dental Academy ...

Standard YouTube License; ... Basic removable appliance designs / fixed orthodontic courses by Indian dental ... Indiandentalacademy ida 2,639 ...
Read more

Titanium and titanium alloys/ /certified fixed orthodontic ...

Titanium and titanium alloys/ /certified fixed orthodontic courses by ... Ida et al reported that ... MIYAKAWA. 0, “Internal porosity in circumferential ...
Read more

List of Orthodontic Functional Appliances - Videos

Basic removable appliance designs / fixed orthodontic courses by ... Indiandentalacademy ida. Invisalign ... Adams clasps are used for retention of ...
Read more

3Shape - Corporate Website

3Shape solutions in action ... Orthodontic System . CAD software & Lab Scanners. Implant Studio ...
Read more

News | Indiana Dental Association

IHCP Pricing updated for certain manually priced dental codes ... (including clasps and teeth) D5951. ... IDA Events; OSHA & CPR Courses; Find a Dentist ...
Read more