Mithradas Nimisha, Sudhakar Uma, Arunachalam Lalitha T, Suresh Snophia, Raja Manoj
Department of Periodontics, Thai Moogambigai Dental College and Hospital, Chennai, Tamil Nadu, India.
J Indian Soc Periodontol. 2020 Sep-Oct;24(5):421-427. doi: 10.4103/jisp.jisp_508_19. Epub 2020 Sep 1.
Dental esthetic awareness among patients led the clinicians to introduce newer materials and predictable techniques that satisfy the patients' esthetic demands.
To evaluate and compare the efficacy of subepithelial connective tissue graft (SECTG) and acellular dermal matrix (ACDM) allograft in the treatment of Millers Class I or Class II recession with the determination of gingival thickness using an impertinent method, soft tissue cone-beam computed tomography (ST-CBCT).
A split-mouth study with a total of ten patients with bilateral Millers class I or class II recession is randomly assigned by a coin toss method as Group I (SECTG) and Group II (ACDM) along with coronally advanced flap. Clinical parameters including recession height (RH), recession width (RW), probing depth, clinical attachment level (CAL), and height of keratinized tissue (HKT) were evaluated at baseline, 90 day, and 180 day for both groups. The thickness of keratinized tissue (TKT) was determined by most reliable, predictable and noninvasive method called ST-CBCT.
Statistically significant reduction in RH and RW, gain in CAL, and increase in HKT and TKT in both Group I and Group II were seen in 90 day and 180 day. However, when both Group I and Group II were compared between 0 and 180 day, the change in RH and RW, gain in CAL, and increase in HKT and TKT did not show any statistically significant change.
The present study suggested that root coverage with both SECTG and ACDM is very predictable procedure and it is stable for 6 months. ST-CBCT is a newer dimension in periodontal imaging and will certainly aid clinicians in the execution of various treatment modalities with increased predictability.
患者对牙齿美观的关注促使临床医生引入更新的材料和可预测的技术,以满足患者的美学需求。
评估和比较上皮下结缔组织移植(SECTG)和脱细胞真皮基质(ACDM)异体移植在治疗米勒I类或II类牙龈退缩中的疗效,并使用软组织锥形束计算机断层扫描(ST-CBCT)这一相关方法测定牙龈厚度。
采用随机分组研究,通过抛硬币的方法将10例双侧米勒I类或II类牙龈退缩患者随机分为I组(SECTG)和II组(ACDM),同时进行冠向推进瓣手术。对两组患者在基线、90天和180天时评估包括退缩高度(RH)、退缩宽度(RW)、探诊深度、临床附着水平(CAL)和角化组织高度(HKT)在内的临床参数。角化组织厚度(TKT)通过最可靠、可预测且无创的ST-CBCT方法测定。
I组和II组在90天和180天时,RH和RW均有统计学意义的降低,CAL增加,HKT和TKT升高。然而,比较I组和II组在0至180天期间,RH和RW的变化、CAL的增加以及HKT和TKT的升高均未显示出任何统计学意义上的显著变化。
本研究表明,SECTG和ACDM进行牙根覆盖都是非常可预测的手术,并且在6个月内是稳定的。ST-CBCT是牙周成像的一个新维度,必将有助于临床医生以更高的可预测性实施各种治疗方式。