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Anterior strip crown

Discussion on anterior strip crown used in paediatric dentistry.

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Anterior strip crown

  1. 1. CONTENT • INTRODUCTION • DEFINITION • PURPOSE • INDICATIONS • CONTRAINDICATIONS • TECHNIQUE • ADVANTAGES • DISADVANTAGES • CONCLUSION
  2. 2. INTRODUCTION •ALTHOUGH ADVANCES IN THE APPLICATION OF PREVIOUS DENTISTRY TECHNIQUES, INCREASED DENTAL EDUCATION IN PARENTS HAVE REDUCED THE INCIDENCE OF CARIES IN CHILDREN, THERE IS STILL A HIGH PREVALENCE OF EARLY CHILDHOOD CARIES ESPECIALLY IN THE LOWER SOCIOECONOMIC POPULATION.
  3. 3. •AESTHETIC TREATMENT OF SEVERELY DECAYED PRIMARY TEETH IS ONE OF THE GREATEST CHALLENGES TO PEDIATRIC DENTISTS. IN THE LAST HALF CENTURY THE EMPHASIS ON THE TREATMENT OF EXTENSIVELY DECAYED PRIMARY TEETH SHIFTED FROM EXTRACTION TO RESTORATION. •A HIGHER ESTHETIC STANDARD IS EXPECTED BY PARENTS FOR RESTORATION OF THEIR CHILDREN’S CARIOUS TEETH. THUS, THE CHOICE OF FULL COVERAGE RESTORATION FOR PRIMARY TEETH MUST PROVIDE AN AESTHETIC APPEARANCE IN ADDITION TO RESTORING FUNCTION & DURABILITY.
  4. 4. •THIS PRESENTATION WILL CONCENTRATE ON AESTHETIC FULL COVERAGE RESTORATION FOR ANTERIOR PRIMARY TEETH.
  5. 5. DEFINITION •ANTERIOR STRIP CROWNS ARE THE RESTORATION OF CHOICE FOR UPPER OR LOWER ANTERIOR TEETH THAT HAVE MULTIPLE SURFACE OR LARGE CAVITIES. IT IS A CLEAR PLASTIC TOOTH FORM THAT IS TRIMMED AND FILLED WITH COMPOSITE RESIN (TOOTH COLORED FILLING MATERIAL) TO PROVIDE FULL TOOTH COVERAGE AFTER CAVITY REMOVAL.
  6. 6. PURPOSE •THE CROWN PROTECTS THE TOOTH OR FILLING WHILE A PERMANENT CROWN IS MADE FROM ANOTHER MATERIAL. FOR CHILDREN, A STAINLESS STEEL CROWN IS COMMONLY USED TO FIT OVER A PRIMARY TOOTH THAT'S BEEN PREPARED TO FIT IT. THE CROWN COVERS THE ENTIRE TOOTH AND PROTECTS IT FROM FURTHER DECAY.
  7. 7. INDICATIONS EARLY RESTORATIONS CONSISTED OF PLACEMENT OF STAINLESS STEEL BANDS OR CROWNS ON SEVERELY DECAYED TEETH. THE INDICATIONS FOR STRIP CROWNS INCLUDE - •EXTENSIVE DECAY OF THE PRIMARY ANTERIOR TEETH WHERE ONLY CONSERVATIVE TREATMENT IS NOT SUFFICIENT •MULTISURFACE CARIES OF THE PRIMARY ANTERIOR TEETH •RAMPANT CARIES •NURSING BOTTLE SYNDROME • FRACTURED TEETH
  8. 8. •TEETH THAT EXHIBIT DISCOLORATION •MALFORMED TEETH •AS COVERAGE FOR TEETH THAT HAVE RECEIVED PULP THERAPY . • DENTAL HYPERPLASIA •AMELOGENESIS IMPERFECTA •AESTHETICS
  9. 9. Some conditions requiring anterior strip crown
  10. 10. CONTRAINDICATIONS • EXTENSIVE CARIOUS EXPOSURE • IF THE PRIMARY MOLAR IS CLOSE TO EXFOLIATION WITH MORE THAN HALF THE ROOT RESORBED OR EXFOLIATION WITHIN 6-12 MONTHS. • CLINICAL OR RADIOGRAPHICAL EVIDENCE OF RADICULAR PATHOLOGY. • MORE THAN 2 WEEKS AFTER TRAUMA • TOOTH EXHIBITS EXCESSIVE MOBILITY. • PRIMARY POSTERIOR TOOTH
  11. 11. • PARTIALLY ERUPTRD TOOTH • BADLY BROKEN DOWN CROWN • ESTHETICALLY UNAPPEALING • WHERE CONSERVATIVE RESTORATION CAN BE PLACED. • INSUFFICIENT TOOTH STRUCTURE FOR RETENTION • NEGLECTED MOUTH • UNCOOPERATIVE PATIENT • PERIODONTAL DISEASE • PATIENTS WITH BRUXISM
  12. 12. CONDITIONS WHERE WE CAN NOT PLACE ANTERIOR STRIP CROWN
  13. 13. TECHNIQUE •STEP 1. REMOVE DECAY START BY REMOVING ANY DECAY . PROXIMAL TOOTH REDUCTION IS NOT NECESSARY UNLESS THERE IS DECAY.
  14. 14. •STEP 2: SELECT STRIP CROWN TO MATCH SIZE OF TOOTH SELECT THE STRIP CROWN AND PLACE INCISAL EDGE AGAINST THE TOOTH TO CONFIRM IT IS THE CORRECT SIZE.
  15. 15. • STEP 3: FILL STRIP CROWN WITH RESTORATIVE MATERIAL PREPARE TOOTH SURFACE USING YOUR USUAL ETCHING AND BONDING PROCEDURE. ALLOW MATERIAL TO BACK FILL THE CAVITY. ALWAYS KEEP THE TIP SUBMERGED IN THE MATERIAL TO ELIMINATE VOIDS. SHEERING ACTION OF THE MIX TIP ELIMINATES AIR BUBBLES.
  16. 16. • STEP 4: PLACE A SMALL VENT HOLE BEFORE SEATING THE STRIP CROWN IT IS NECESSARY TO PUT A RELIEF HOLE IN THE LINGUAL AREA OF THE STRIP CROWN FOR THE ESCAPE OF TRAPPED AIR & EXCESS RESTORATIVE MATERIAL .
  17. 17. •STEP 5: CURE AND CLEAN UP CURE THE MATERIAL ON FACIAL AND LINGUAL SIDES AND REMOVE THE SEMI-SET EXCESS. THEN CURE FOR 20 SECONDS. REMOVE THE CROWN FORM FROM THE LINGUAL SIDE WITH AN EXPLORER. TRIM AND FINISH.
  18. 18. PROCEDURE OF PLACING ANTERIOR STRIP CROWN
  19. 19. RADIOGRAPH SHOWING ANTERIOR STRIP CROWN
  20. 20. ADVANTAGES • ALLOW THE CONTINUATION OF NORMAL DEVELOPMENT OF TOOTH. • RETAIN THE NATURAL COLOUR OF TOOTH & TRANSLUCENCY. •IT PROVIDES SUPERIOR AESTHETICS. •REQUIRE REMOVAL OF SMALL AMOUNT OF TOOTH STRUCTURE. •BETTER RETENTION THAN POLYCARBONATE CROWN. •LEAVES SMOOTH SHINY SURFACE.
  21. 21. DISADVANTAGES •FRACTURE OR DEBONDING. •TECHNIQUE SENSITIVE . •ADEQUATE MOISTURE CONTROL MIGHT BE DIFFICULT ON AN UNCOOPERATIVE PATIENT. •TIME CONSUMING. •COSTLY.
  22. 22. CONCLUSION THE BONDED RESIN COMPOSITE STRIP CROWN IS PERHAPS THE MOST ESTHETIC OF ALL THE RESTORATIONS AVAILABLE TO THE CLINICIAN FOR THE TREATMENT OF SEVERELY DECAYED PRIMARY INCISORS.IT WAS EASY TO PERFORM AND BENEFITED THE CHILD IMMEDIATELY. ALSO PARENTAL SATISFACTION WITH BONDED RESIN COMPOSITE STRIP CROWNS FOR THE TREATMENT OF PRIMARY INCISORS WITH LARGE OR MULTI-SURFACE CARIES WERE EXCELLENT.
  23. 23. WITH ALL FULL COVERAGE RESTORATIONS PARENTS MUST BE ADVISED TO INSTITUTE APPROPRIATE PREVENTIVE HEALTH PRACTICES ( ELIMINATION OF SUGAR CONTAINING DRINKS, REGULAR TOOTH BRUSHING & TOPICAL FLUORIDE APPLICATION) TO MAXIMIZE GINGIVAL HEALTH & MINIMIZE THE RECURRENCE OF CARIES UNDER THE RESTORATIONS.
  24. 24. THANK YOU

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