One- Versus Two-Stage Aesthetic Crown Lengthening for Restorative Purposes: A Randomized Controlled Trial.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 主要终点
- T1-T4
研究概览
简要总结
This randomized controlled trial was aimed at assessing the efficacy of a two-stage crown lengthening intervention (SCL) for restorative purposes in the aesthetic zone compared with a one-stage crown lengthening procedure (CCL).
详细描述
Subjects were randomly allocated to receive SCL or CCL. SCL consisted of full thickness flaps followed by bone recontouring and minor gingivectomy 4 months postoperatively, if required. In CCL, osseous recontouring after sub-marginal incisions was performed, followed by flap repositioning. Records were obtained at baseline, 4 months (only in SCL), 6 and 12 months. Primary outcome was the precision in achieving a predetermined gingival margin position. Other outcomes were changes in the gingival margin position and keratinized tissue width (KTW) at 12 months, and patient-reported outcomes (PROMs) using the OHIP-14 tool.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •older than eighteen years of age;
- •more than 20 teeth in the mouth;
- •with full mouth plaque and bleeding scores lower than 15%; and
- •without probing pocket depth and/or attachment loss >4 mm
排除标准
- •Pregnant women or breastfeeding
- •treated with antimicrobial and/or anti-inflammatory drugs within two months prior to entering the study
- •currently undergoing orthodontic therapy
结局指标
主要结局
T1-T4
时间窗: Baseline-12 months
The difference in mm between the ideal gingival margin (T1) and the position of the gingival margin at 12 months (T4).
次要结局
- Clinical Crown Length(At baseline, 6- and 12-month)
- Gingival display upon smiling(At baseline, 6- and 12-month)
- Amount of keratinized tissue(At baseline, 6- and 12-month)
- Supracrestal tissue dimension(At baseline, 6- and 12-month)