Bows /certified fixed orthodontic courses by Indian dental academy

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

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Bows /certified fixed orthodontic courses by Indian dental academy

  1. 1. BOWBOW SS www.indiandentalacademy.comwww.indiandentalacademy.com INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com
  2. 2. LABIAL BOWSLABIAL BOWS • Labial bow is an essential component ofLabial bow is an essential component of removable orthodontic appliancesremovable orthodontic appliances • It can be either active or passiveIt can be either active or passive www.indiandentalacademy.comwww.indiandentalacademy.com
  3. 3. • The principal function of the bow is toThe principal function of the bow is to retrude the anterior teethretrude the anterior teeth • It can be used for retentive purposesIt can be used for retentive purposes www.indiandentalacademy.comwww.indiandentalacademy.com
  4. 4. Parts of labial bowParts of labial bow • The incisor segmentThe incisor segment • Vertical loopsVertical loops • The occlusal or crossThe occlusal or cross over sectionover section • The retentive endsThe retentive ends www.indiandentalacademy.comwww.indiandentalacademy.com
  5. 5. Placement of the incisor segmentPlacement of the incisor segment • Active bowActive bow placed at the junction of incisal andplaced at the junction of incisal and middle thirdmiddle third • 0.6 or 0.7 mm SS Wire used0.6 or 0.7 mm SS Wire used www.indiandentalacademy.comwww.indiandentalacademy.com
  6. 6. • Retentive or passive bowRetentive or passive bow placed at the junction of cervical andplaced at the junction of cervical and middle third or below the height ofmiddle third or below the height of contourcontour • 0.9 or 1 mm SS Wire used0.9 or 1 mm SS Wire used www.indiandentalacademy.comwww.indiandentalacademy.com
  7. 7. TypesTypes • Short labial bowShort labial bow • Long labial bowLong labial bow • Roberts retractorRoberts retractor • Reverse labial bowReverse labial bow • Begg’s labial bowBegg’s labial bow • Mills retractorMills retractor • Fitted labial bowFitted labial bow • High labial bow with apron springsHigh labial bow with apron springs • Split labial bowSplit labial bow www.indiandentalacademy.comwww.indiandentalacademy.com
  8. 8. Short labial bowShort labial bow IndicationsIndications • Retraction of anteriorsRetraction of anteriors • Anterior spacing with proclinationAnterior spacing with proclination • Overjet reductionOverjet reduction There should be good contact betweenThere should be good contact between canine and premolarcanine and premolar www.indiandentalacademy.comwww.indiandentalacademy.com
  9. 9. • 0.7mm wire used0.7mm wire used • Fabrication:-Fabrication:- labial segment of wire islabial segment of wire is placed at the junction of the incisal andplaced at the junction of the incisal and middle third.middle third. www.indiandentalacademy.comwww.indiandentalacademy.com
  10. 10. Vertical segment starts from mesial third of canine,Vertical segment starts from mesial third of canine, should be perpendicular to the incisor segment &should be perpendicular to the incisor segment & should be away from gingivashould be away from gingiva Occlusally, it passes between canine and premolarOcclusally, it passes between canine and premolar www.indiandentalacademy.comwww.indiandentalacademy.com
  11. 11. Retentive ends adapted on the lingual or palatalRetentive ends adapted on the lingual or palatal side.side. ActivationActivation - Compressing the U-loop by 1mm- Compressing the U-loop by 1mm www.indiandentalacademy.comwww.indiandentalacademy.com
  12. 12. Long labial bowLong labial bow IndicationsIndications • Anterior space closureAnterior space closure • Overjet reductionOverjet reduction • Closure of the space distal to the canineClosure of the space distal to the canine • As a retaining device at the end of fixedAs a retaining device at the end of fixed therapytherapy • Guidance of canine during canineGuidance of canine during canine retraction using palatal retractorretraction using palatal retractor www.indiandentalacademy.comwww.indiandentalacademy.com
  13. 13. • 0.7 mm wire used in active purpose0.7 mm wire used in active purpose • 0.9 mm wire used in passive purpose0.9 mm wire used in passive purpose • FabricationFabrication - same as short labial bow but- same as short labial bow but occlusal wire passes between twoocclusal wire passes between two premolarspremolars • ActivatedActivated by compressing the U-loopby compressing the U-loop www.indiandentalacademy.comwww.indiandentalacademy.com
  14. 14. Roberts retractorRoberts retractor • It was first designed byIt was first designed by G.H RobertG.H Robert • IndicationIndication it is suitable only for retraction of fourit is suitable only for retraction of four incisors following retraction of caninesincisors following retraction of canines www.indiandentalacademy.comwww.indiandentalacademy.com
  15. 15. • This is a flexible bow which is constructedThis is a flexible bow which is constructed from 0.5 or 0.6 mm wire inserted into afrom 0.5 or 0.6 mm wire inserted into a stainless steel tubing to give support tostainless steel tubing to give support to either end of the boweither end of the bow www.indiandentalacademy.comwww.indiandentalacademy.com
  16. 16. • FabricationFabrication Labial segment of wire is placed at the junction ofLabial segment of wire is placed at the junction of the incisal and middle thirdthe incisal and middle third Extends only two thirds of the mesiodistal width ofExtends only two thirds of the mesiodistal width of the lateral incisorsthe lateral incisors A coil of 3mm internal diameter placed mesial toA coil of 3mm internal diameter placed mesial to caninecanine Distal part is supported in a stainless steel tubingDistal part is supported in a stainless steel tubing www.indiandentalacademy.comwww.indiandentalacademy.com
  17. 17. • It is activated by closing the coil or giving palatalIt is activated by closing the coil or giving palatal bend at the emergence of the coilbend at the emergence of the coil www.indiandentalacademy.comwww.indiandentalacademy.com
  18. 18. Reverse labial bowReverse labial bow • IndicationIndication For retaining tooth positionsFor retaining tooth positions For minor tooth movementsFor minor tooth movements www.indiandentalacademy.comwww.indiandentalacademy.com
  19. 19. • 0.7 mm wire used0.7 mm wire used • FabricationFabrication:-loops are placed distal to:-loops are placed distal to the canine and the free ends of the U-the canine and the free ends of the U- loops are adapted occlusally betweenloops are adapted occlusally between the premolar and caninethe premolar and canine www.indiandentalacademy.comwww.indiandentalacademy.com
  20. 20. • This is too stiff for effective incisor retractionThis is too stiff for effective incisor retraction • The stability ratio is poorThe stability ratio is poor ActivationActivation First the U-loop is opened this results inFirst the U-loop is opened this results in lowering of the labial bow in the incisor region .lowering of the labial bow in the incisor region . A compensatory bend is given at the base ofA compensatory bend is given at the base of the loopthe loop www.indiandentalacademy.comwww.indiandentalacademy.com
  21. 21. Begg’s labial bowBegg’s labial bow ((Wrap Around / Around the Globe Bow)Wrap Around / Around the Globe Bow) • Popularized byPopularized by P.R . BeggP.R . Begg • It is used as retainer after fixed orthodonticIt is used as retainer after fixed orthodontic therapytherapy • 0.9 mm wire is used0.9 mm wire is used www.indiandentalacademy.comwww.indiandentalacademy.com
  22. 22. • FabricationFabrication consists of labial wire that extends till the lastconsists of labial wire that extends till the last erupted molarerupted molar U-loop is incorporated at the pre molar and molarU-loop is incorporated at the pre molar and molar area to close the band spacesarea to close the band spaces www.indiandentalacademy.comwww.indiandentalacademy.com
  23. 23. • Advantage of this bow is that there is noAdvantage of this bow is that there is no cross- over wire between the canine andcross- over wire between the canine and premolar there by eliminating the risk ofpremolar there by eliminating the risk of space opening upspace opening up www.indiandentalacademy.comwww.indiandentalacademy.com
  24. 24. Mills retractorMills retractor • It is also called extended labial bowIt is also called extended labial bow • IndicationIndication Large overjetLarge overjet For alignment of irregular incisorsFor alignment of irregular incisors www.indiandentalacademy.comwww.indiandentalacademy.com
  25. 25. • 0.7 mm wire is used0.7 mm wire is used • This labial bow has an extensive looping of theThis labial bow has an extensive looping of the wire so as to increase the flexibility and range ofwire so as to increase the flexibility and range of actionaction • Poor patient acceptancePoor patient acceptance • Complex designComplex design www.indiandentalacademy.comwww.indiandentalacademy.com
  26. 26. Fitted labial bowFitted labial bow • Used to secure the incisors firmly after they beenUsed to secure the incisors firmly after they been rotatedrotated • It acts as retainerIt acts as retainer • It is not used in active tooth movementIt is not used in active tooth movement • 0.7 mm wire is used0.7 mm wire is used www.indiandentalacademy.comwww.indiandentalacademy.com
  27. 27. High labial bow with apron springHigh labial bow with apron spring • Used in retraction of one or more teethUsed in retraction of one or more teeth • Large overjetLarge overjet • It is very similar to a Roberts retractorIt is very similar to a Roberts retractor • Highly flexibleHighly flexible • Light forceLight force www.indiandentalacademy.comwww.indiandentalacademy.com
  28. 28. • FabricationFabrication A heavy base arch of 0.9mm to 1mm wire extendsA heavy base arch of 0.9mm to 1mm wire extends into the buccal sulcusinto the buccal sulcus apron spring made of 0.4mm wire is attached toapron spring made of 0.4mm wire is attached to the high labial bowthe high labial bow www.indiandentalacademy.comwww.indiandentalacademy.com
  29. 29. • ActivationActivation It is activated by bending the upright arms of theIt is activated by bending the upright arms of the apron springs towards the teethapron springs towards the teeth 3mm activation at a time3mm activation at a time Disadvantages are difficulty in construction and softDisadvantages are difficulty in construction and soft tissue injurytissue injury www.indiandentalacademy.comwww.indiandentalacademy.com
  30. 30. Split labial bowSplit labial bow • Used for anteriorUsed for anterior retractionretraction • Closer of midlineCloser of midline diastemadiastema www.indiandentalacademy.comwww.indiandentalacademy.com
  31. 31. Other bowsOther bows • Protrusion bowProtrusion bow • Palatal arch with central U-loopPalatal arch with central U-loop www.indiandentalacademy.comwww.indiandentalacademy.com
  32. 32. THANK YOUTHANK YOU For more details please visitFor more details please visit www.indiandentalacademy.comwww.indiandentalacademy.com www.indiandentalacademy.comwww.indiandentalacademy.com

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