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TOOTH EXTRACTION

BY DR. MANISHA MISHRA. TOOTH EXTRACTION. Tooth extraction. Indications: Grossly carious tooth which cannot be restored Acute/chronic pulpitis which can’t be restored by RCT Periodontal diseases More than half of alveolar bone loss Fracture of tooth Root Longitudinal

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TOOTH EXTRACTION

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  1. BY DR. MANISHA MISHRA TOOTH EXTRACTION

  2. Tooth extraction Indications: • Grossly carious tooth which cannot be restored • Acute/chronic pulpitis • which can’t be restored by RCT • Periodontal diseases • More than half of alveolar bone loss • Fracture of tooth • Root • Longitudinal • If tooth lies on jaw # line

  3. Indication cont.. 5. Bony lesion lies over the tooth • Cyst, Tumor,OM 6. Impacted tooth 7. Aesthetic indication 8. Orthodontic appliances • Teeth crowding 9. Supernumerary and malposed teeth 10. Retained deciduous tooth if permanent successor is present 11. If tooth hurting the soft tissue • Upper 3rd molar damaging the lower 3rd molar gum tissue

  4. Contraindications: General • Cardiac diseases - Valvular heart diseases, RHD, Hypertension,Patients on anticoagulation therapy • Blood disorders (Severe anemia, Leukemia, Hemophilia) • Liver disease (Vitamin K deficiency, Clotting factor deficiency) • DM • Pregnancy- 1st and 3rd trimester • Epilepsy patient • Allergic to local anesthesia • Psychiatric patient • Very old patient • Uncooperative patient/ Lack of consent • Patient on steroids • High grade fever

  5. Contraindication : Local • Acute gingivitis • Acute periodontitis • Acute pericoronitis • Acute cellulitis • Acute osteomyelitis • Malignancy Any acute infection except Acute pulpitis is not contra indication of tooth extraction but it is rather indication of extraction

  6. Post extraction instructions: • Bite on cotton or gauge for half an hour • Don’t spit or rinse as far as possible • Don’t take hot water or food at least for 12 hour • No physical activity for 24 hours • Soft lukewarm comfortable foods • Intake of antibiotics and analgesics as prescribed by dentist • Cold compress with ice packs • No smoking / Alcohol / Tobacco • If any bleeding, pain or complications contact hospital or dentist immediately • Warm saline wash after 24 hrs for next 2 or 3 days

  7. Complications • Fracture of • Crown, Root, Alveolar bone, Adjacent tooth • Dislocation of TMJ • Trauma to Gingiva, Lips, Tongue, Palate • Intraoperative and post operative hemorrhage • Trismus • Infection : local /systemic • Anesthesia related complication

  8. Antibiotic prophylaxis: Under L.A • Amoxycillin 3gm 1 hour before surgery,If allergic to Amoxycillin then give • Clindamycin 600mg Under G.A • Amoxycillin IV + oral 1gm at induction and 0.5 gm 6 hours later,If allergic then • Vancomycin IV infusion1gm over 1 hour+Gentamycin120mg IV

  9. Position

  10. Extraction movement • Primary movement: Along longitudinal axis of root • Secondary movement: Main extracting movement • Rotatory • Buccolingual or labiolingual • Mesodistal • Lifting the tooth

  11. Upper central and lateral incissor • Rotation only • Upper canine • Rotation initially, some labiolingual movement may be needed • Upper premolar and molar • Buccopalatal movement

  12. Lower central and lateral incissor • Labiolingual movement • Lower canine • Rotatory and labiolingual • Lower premolar • Rotatory • Lower molar • Buccolingual movement

  13. Nerve supply: Maxilla • Posterior superior alveolar nerve: Molars • Middle superior alveolar nerve: Premolars • Anterior superior alveolar nerve: Canines and Incissor • Sensory supply of palate from greater and lesser palatine nerves as well

  14. Mandibular nerve: • Lingual nerve • Inferior alveolar nerve : Enters the mandibular canal

  15. Dental block • Types of blocks • Supraperiosteal injection • Mental nerve block • Anterior superior alveolar (Infraorbital) nerve block • Posterior superior alveolar nerve block • Inferior alveolar nerve block

  16. Choice of anesthesia in dental procedure • 2% lidocaine/Xylocaine with 1:100,000 epinephrine is a good choice. This provides about • 1 hour of dental pulp analgesia • 3 to 5 hours of soft-tissue analgesia • For temporary relief of pain, the preferred agent is 0.5% Bupivacaine with 1:200,000 epinephrine • 1 to 3 hours of dental pulp analgesia • 4 to 9 hours of soft-tissue analgesia • Duration of analgesia is less with supraperiosteal injections than with regional nerve blocks

  17. Inferior alveolar nerve block • Most widely used anesthetic procedure in dentistry • All mandibular teeth to midline • Anterior 2/3 of tongue • Floor of oral cavity Complication: • Infection • Patient having tendency to bite tongue or lips

  18. Aim is to deposit solution around the inferior alveolar nerve as it enters the mandibular foramen underneath the lingula • The patient's mouth must be widely open, inferior border being parallel to ground • Palpate the landmarks of external and internal oblique ridges and note the line of the ptyerygomandibular raphe

  19. Index finger is used to stretch the tissues over the injection site, maximizing visibility and minimizing the pain of the injection. • Orient the syringe so that the barrel is in the opposite corner of the mouth, resting on the premolars • Aim toward your index finger and slowly penetrate the mucosa until bone is contacted, usually a distance of about 2.5 cm • Needle should be parallel to occlusal surface

  20. Withdraw slightly and aspirate • If no blood is returned, inject 1.5 to 2 mL of anesthetic • If aspiration is positive, pull back and redirect slightly, then repeat • If a lingual nerve block is required 0.5 ml of LA is injected after withdrawal of 0.5cm of the needle

  21. Supraperiosteal infiltration • Also called ‘local infiltration’ • Teeth affected • Any maxillary tooth • Only can anesthetize 2 or 3 adjacent teeth • Poor option for mandibular tooth because of relatively high density

  22. The aim is to deposit LA supraperiosteally in as close proximity as possible to the apex of the tooth to be anaesthetized. • The LA will diffuse through periosteum and bone to bathe the nerves entering the apex. • Reflect the lip or cheek to place mucosa on tension and • insert the needle along the long axis of the tooth aiming towards bone. • At approximate apex of tooth, withdraw slightly and deposit LA slowly

  23. Mental nerve blockApex of the second premolar • Tissue and teeth affected • Buccal soft tissues from 2nd mandibular premolar to midline • skin of lower lip and chin

  24. Infraorbital block Just inferior to the infraorbital notch • Teeth affected • Incisors • Canines • premolars

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