6 materials and methods a total of 15 pairs of

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[6] MATERIALS AND METHODS A total of 15 pairs of bilateral buccal recession defects from 15 patients with bilateral gingival recession defects and in good general health were recruited for the study. The inclusion criteria included age group of 18–45 years (both genders), presence of bilateral gingival recession classified as Miller’s Class I or II recession defects in upper anteriors and premolars, ability to maintain good oral hygiene, patients willing to comply with all the study‑related procedures, and those available for follow‑up. Patients were excluded from the study for the following reasons: History of prolonged use of antibiotics, periodontal therapy in the preceding 6 months, pregnant and lactating women, history of tobacco use in any form, history of systemic diseases, unwilling patients, gingival recession associated with severe cervical abrasion/cervical caries, and faulty toothbrushing technique. Clinical measurement A detailed clinical examination, case history, and informed consent were obtained from all the study participants along with complete hemogram. Acrylic stents were fabricated for the selected sites. A deepest line of recession was analyzed, and a groove was placed in the stent in the line of recession to have a constant reference for standardized measurements at baseline and recall appointments. The following clinical parameters were at 9 months postsurgery from baseline. Recession depth (RD) was recorded to the most apical extension of gingival margin from the CEJ Probing pocket depth (PPD) was recorded to the base of gingival sulcus from the crest of gingival margin The following formula was used to calculate the clinical attachment level (CAL): CAL = RD + PPD Keratinized tissue height (KTH) was measured from the gingival margin to the mucogingival junction At 9‑month posttreatment, the following formula was used to calculate the RC percentage and improvement in RD: Improvement in the recession depth ( X ) = Baseline RD − RD at 9 months. Percent of root coverage = × 100 Baseline Recession depth X . Presurgical evaluation A total of 15 pairs of Miller’s Class I or II gingival recession defects in 15 patients were treated with Phase I therapy. Both the groups, namely the test and the control groups, were randomized using lottery method in each patient. Surgery on the second site (e.g., control site) was done 15 days after the suture removal on the test site or vice versa . As per the design of this study, the control sites were treated using CAF alone procedure and the test sites were treated by using CAF + Novabone RCM [6] (bovine Type I collagen membrane). In both test and control sites, thorough root planning and smoothing of cervical abrasion (if present) in each site were done and it is followed by root conditioning with tetracycline for 1 min.
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  • Fall '19
  • Collagen, Gingiva, CAF, KTH

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