OrACELL™ vs. Connective Tissue in Miller Class 3 Defects

Inclusion Criteria: 1. Patients must be between 18 and 80 years old, with recession present in one quadrant as either single or multiple buccal vertical recession sites 2. The defect must be at least 2mm in length, (measured from the CEJ to the midfacial gingival margin) and classified as either Miller Class I, II or III 3. Study is limited to vital and nonvital incisors, canines, and premolars 4. If teeth adjacent to the site to be treated had recession as well, they were included in the grafting procedure but not included in measurement 5. Plaque control defined as modified O'Leary Index of 85% was established before surgical intervention 6. Only sites with probing depths of 3mm or less and no bleeding on probing were accepted for surgery Exclusion Criteria: 1. Subjects who smoke more than ten cigarettes per day or use nicotine replacement therapy 2. History of previous history of surgery performed at surgical sites included in study 3. Subjects who have uncontrolled or poorly controlled systemic conditions that could compromise or contraindicate periodontal surgery 4. Non-English speakers 5. Pregnant or lactating females 6. Immunosuppressant medications