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TACD MEMBERS NIGHT Tuesday April 12, 2011. Subepithelial Connective Tissue Graft for Root Coverage. AGENDA. Brief history of the technique Etiology and indications for using a subepithelial connective graft (CTG) Advantages and limitations
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TACD MEMBERS NIGHTTuesday April 12, 2011 Subepithelial Connective Tissue Graft for Root Coverage
AGENDA • Brief history of the technique • Etiology and indications for using a subepithelial connective graft (CTG) • Advantages and limitations • Miller’s classification and procedure predictability • Materials, instruments and surgical technique • Visit with patients who have undergone the procedure • Live demonstration
ETIOLOGY & INDICATIONS ROOT COVERAGE • Corrective or preventive (acts as a fiber barrier) • Increased susceptibility to root caries • Tooth hypersensitivity from exposed dentin • Aesthetic concerns of exposed dentin and/or crown margins RIDGE AUGMENTATION
MILLER’S CLASSIFICATION Type I • No interdental bone loss • Defect is coronal to the mucogingival junction (MGJ) Type II • No interdental bone loss • Defect extends to or beyond MGJ Highly predictable complete root coverage
MILLER’S CLASSIFICATION Type III • Interdental bone loss (mild to moderate) with accompanying loss of papillary height • Defect at or apical to the MGJ Type IV • Severe interdental bone loss with accompanying loss of papilla • Defect at or apical to the MGJ Complete root coverage impossible
ADVANTAGES • Highly predictable • Highly successful due to enhanced blood supply • Aesthetic • Used on single or multiple sites • Good healing potential for palate donor site
LIMITATIONS • Technically demanding • Anatomy may limit volume of available tissue-shallow palatal vault, greater palatine vessels, nasopalatine vessels • Multiple sites may need multiple appointments due to tissue volume limitations • Previous surgeries and scar tissue formation
MATERIALS, INSTRUMENTS AND TECHNIQUE Microsurgical Kit Mirror, probe, cotton pliers, suture pliers, Castroviejo suture forceps, scissors, microsurgery elevators, Orban knife, #15 & 15c blades and round handle, Harris knife, scalers, EDTA or tetracycline, saline, glass slab and gauze Gut 5-0, Polypropylene 6-0 and Vicryl 4-0 sutures • Thorough oral hygiene work up • Review procedure with patient • Pre op meds • Pre-surgical rinse • Local anaesthetic (Citanest 4% plain, Lidocaine 2% 1:100,00/50,000) • Prepare recipient site-floss, root plane and smear layer treatment, pouch/envelope flap preparation(blunt then sharp dissection) • Harvest graft tissue from palate (premolar or retromolar) and close • Place and secure graft (sling suture)
POST-OP • Ice area • Review procedure Post-op Recommendations • Ice on and off every 10 minutes • Limited activity for 24 hours • No brushing or manipulating area for 4-6 weeks • Maintain good oral hygiene and take meds (antibiotic, anti-inflammatory, Peridex) • Call patient • Remove palatal sutures in 1 week and grafted site sutures in 2-3 weeks
CLIENTS AND NOTES • Lisa: CTG lower anteriors lingual first surgery 2005, second surgery 2006 • Robert: CTG #33 facial Oct. 2010 • Armando: CTG #16 buccal one week ago • Adrian: CTG #23 facial today • Kathy: CTG #33 facial Feb. 2011