Remedy to Dentinal hypersensitivity /certified fixed orthodontic courses by Indian dental academy

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Remedy to Dentinal hypersensitivity /certified fixed orthodontic courses by Indian dental academy

  1. 1. REMEDY TO DENTINAL HYPERSENSITIVITY INDIAN DENTAL ACADEMY Leader in Continuing Dental Education www.indiandentalacademy.com
  2. 2. INTRODUCTION:Dentinal Hypersensitivity • Definition:It is a short or transient sharp pain arising fromexposed Dentin in response to stimuli typicallythermal, evaporative, tactile, osmotic orchemical which cannot be ascribed to anyother form of dental defects or pathology. • A true pain syndrome • An enigma • Not Well Understood
  3. 3. THEORIES OF DENTINAL HYPERSENSITIVITY : Direct stimulation of nerve fibers Dentinal receptor mechanism Gate control theory and vibration Hydrodynamic theory.
  4. 4. CAUSES OF DENTINAL HYPERSENSITIVITY 1. WASTING DISEASES2. DEVELOPMENTAL ANOMALITIES
  5. 5. 3. GINGIVAL RECESSION4. ILL HABITS 5.TRAUMA SMOKING & TOBACCO CHEWING
  6. 6. 6. IATROGENIC CAUSES 8.PERIODONTAL7.DENTAL SURGERY CARIES
  7. 7. CURRENT EXISTING MANAGEMENTS OF DENTINAL HYPERSENSITIVITY:1. Desensitizing agents. • Cavity varnishes • Anti-inflammatory agents • Protein precipitants • Tube occluding agents • Tubule sealants2.Intraoral fluoride releasing device3.Composite resin or Glass ionomer restorations.4.Gluteraldehyde & hydroxyethylmethacrylate bonding agent system5.Topical guanethidine.6.Muco-gingival surgery.7.Lasers – Nd:YAG, CO2 Laser irradiation.
  8. 8. AN ALTERNATE CLINICALTREATMENT FORDENTINALHYPERSENSITIVITY: Anode iontophoresis DEFINITION: The process of influencing ionic motion using an anode as the positive electrode through which current enters the electric circuit.
  9. 9. ANODE IONTOPHORESIS LITERATURE STATUS:• Iontophoretic deposition of strontium in dentine was reported in 1980.• The desensitizing effect and duration of action of anode iontophoresis using strontium chloride solution as the effective management of dentinal hypersensitivity was first reported by G. Ramachandran and Tom Jose.• An extensive clinical trial was conducted under the support of Indian Council of Medical Research.
  10. 10. IONTOPHORETICDESENSITIZER:
  11. 11. IONTOPHORETICDESENSITIZER CIRCUIT DIAGRAM :
  12. 12. IONTOPHORESIS ONSENSITIVE TOOTH : Two electrode made of stainless steel are used: • One electrode is fixed to patient’s forearm. • The other electrode is used to deliver the current to the tooth surface.
  13. 13. IONTOPHORETICDESENSITIZATION: MECHANISM OF ACTION1. Stimulated deposition of secondary dentine  Electrical stimulus  Low intensity current2. Metathesis of strontium  Formation of insoluble salts  Deposition in exposed dentinal tubules3. Electro coagulation- Dentinal fluid4. Increased sensory adaptation
  14. 14. FACTORS AFFECTINGIONTOPHORESIS:• Current strength• Polar effect• Ionic concentration
  15. 15. CLINICAL PROCEDURE: Tooth is made passive electrode Current flows from active electrode through strontium chloride solution. Current strength is measured in voltage and milliampere Anode iontophoresis produces Strontium chloride dissociation in solution. Current electricity forces strontium into the dentinal tubules preventing fluid movement within.
  16. 16. CONCLUSION :• The desensitizing effect of dentin with strontium chloride solution by anode iontophoresis aims at sealing the exposed dentinal tubule by strontium deposition.• Prevents fluid movement within the dentinal tubules.• It is found to have a permanent effect.
  17. 17. SPECIAL THANKS TO: Dr.V.G.Sukumaran,MDS, Prof. & HOD of Endodontics. Dr.Narasimha Bharadwaj,MDS, Lecturer.

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