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Microsoft word - regenerative endo, mso, 2009, handout.doc

IT'S ALIVE: REVASCULARIZATION OF NECROTIC PULP TISSUE IN IMMATURE TEETH
Background Reference: Regenerative Endodontics: A Review of Current Status and a Call for Action, Peter E. Murray, Franklin Garcia-Godoy, and Kenneth M. Hargreaves, J Endod, 2007 Background • Approximately $400 billion spent treating Americans suffering some type of tissue loss or end-stage organ o 20,000 organ transplants o 500,000 joint replacements o Millions of dental and oral craniofacial procedures • Where might regenerative procedures be beneficial? ƒ replacement of oral tissues affected by ƒ inherited ƒ trauma ƒ neoplastic or infectious diseases What is Regenerative Endodontics? • …biologically-based procedures designed to predictably replace damaged, diseased, or missing structures, including dentin and root structures as well as cells of the pulp-dentin complex, with live viable tissues, preferably of the same origin, that restore the normal physiologic functions of the pulp-dentin complex. o pulp-like tissue, ideally, the pulp-dentin complex o damaged coronal dentin, such as following a carious exposure o resorbed root, cervical or apical dentin What is Revascularization/Regeneration? Challenges in treating the incompletely developed root o Cleaning and shaping of blunderbuss canal is difficult o Necrotic debris in wide root canal is difficult to completely disinfect o Thin, fragile lateral dentinal walls can fracture during mechanical filing/obturation o Risk of extending material beyond apex o One Step Apexification o Revascularization/ How can bacteria be removed from the canal? • Triple antibiotic paste Banchs & Trope JOE, 2004 • Calcium hydroxide Chueh & Huang JOE, 2006 • Formocresol Shah & Logani JOE, 2008 • Sato T, Hoshino E, Uematsu H, Noda T. In vitro antimicrobial susceptibility to combinations of drugs on bacteria from carious and endodontic lesions of human deciduous teeth. Oral Microbiol Immunol. 1993 Jun;8(3):172-6. • Sato I, Ando-Kurihara N, Kota K, Iwaku M, Hoshino E. Sterilization of infected root-canal dentine by topical application of a mixture of ciprofloxacin, metronidazole and minocycline in situ. Int Endod J. 1996 Mar;29(2):118-24. • Hoshino E, Kurihara-Ando N, Sato I, Uematsu H, Sato M, Kota K, Iwaku M. In-vitro antibacterial susceptibility of bacteria taken from infected root dentine to a mixture of ciprofloxacin, metronidazole and minocycline. Int Endod J. 1996 Mar;29(2):125-30. o “These results may indicate that the bactericidal efficacy of the drug combination is sufficiently potent to eradicate bacteria from the infected dentine of root canals.” Common Features of Revascularization/Regeneration Cases o Blood clot (or substitute) in canal o MTA barrier, or equivalent, placed over blood clot o Final Retrospective Analysis of 48 Regendo Cases • Bose, Nummikoski, Hargreaves JOE (in press) 2009 o Obtained scanned original images from 48 regendo cases • Case Selection for Revascularization/Regeneration Treatment o Tooth with immature apex and necrotic pulp secondary to ƒ trauma ƒ pulp exposure 2o to dental anomoly ƒ caries o Apex open > 1.5 mm o Pulp space not needed for post/core, final restoration o Compliant o Source of Cells? o Residual pulp cells? o Apical tissues / Apical papilla? o Circulating stem cells? o Source of Scaffold? o Fibrin o Source of Growth Factors? o Plasma derived growth factors o Growth factors embedded in dentinal matrix Considerations for a Regendo Protocol • First o Local anesthesia, rubber dam isolation, access o Copious, gentle irrigation (Max-I-Probe needle) with 20ml NaOCl and 10ml 0.12% chlorhexidine o Dry o Mix 1:1:1 ciprofloxacin:metronidazole:minocycline (alternative: Ca(OH)2 paste) o Deliver into canal system via Lentulo spiral, MAP system or Centrix syringe o If triple antibiotic paste is used, ensure that it remains below CEJ (minimize crown staining) o Seal with 4mm Cavit o Dismiss patient for 3-4 weeks o Anesthesia with 3% mepivacaine without vasoconstrictor, rubber dam, isolation o Copious, gentle irrigation (Max-I-Probe needle) with 20ml NaOCl o Dry with paper points o Create bleeding into canal system by over-instrumenting (endo file, endo explorer) o Stop bleeding 3mm from CEJ o Place o Place 3-4mm MTA and reinforced glass ionomer o Radiographic and clinical exam should reveal regeneration of growth of root and increased width of o No pain or soft tissue swelling should be evident.

Source: http://www.msortho.org/Portals/0/archives/RegenerativeEndoLaw.pdf

Microsoft powerpoint - andrewherxheimer_patientreporting.ppt

• They are more direct and give more and better context than indirect reports from professionals • They commonly describe the impact on people’s lives, which clinicians rarely note • Indirect and direct reports complement each other, generating multicultural knowledge • Knowledge of ADRs and their importance accumulates faster • Patients become active pa

160403073a01.pdf

BOLETÍN OFICIAL DE LA PROVINCIA DE MÁLAGA — 16 de abril de 2003municipal, por el que se comprueba que en Edificio Guetaria, aparta-nación vigente, se acordará la demolición de las obras a costa del inte -mento número 9, sito en la calle Juan Sebastián Elcano, 10, la baran-dilla del balcón ha sido retirada no siendo reemplazada por otra; es2. Incoarse procedimiento sancionador para d

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