Ammar Ahmed H, Ahmed Enji, ElBarbary Ahmed, Ghalwash Dalia, Ezz Elarab Azza
Oral Medicine and Periodontology Department, Faculty of Dentistry, Postal Code: 11553, Cairo University, Cairo, Egypt.
Oral Medicine and Periodontology Department, Faculty of Dentistry, The British University in Egypt, Postal Code: 11837, El- Sherouk, Egypt.
Int J Dent. 2022 Aug 25;2022:1677471. doi: 10.1155/2022/1677471. eCollection 2022.
The aim is to compare the volumetric changes between pouch technique versus the modified pouch technique in pontic site development using connective tissue graft in patients that have Seibert class I ridge defects in the maxillary esthetic zone. . This randomized, controlled, double-blinded, parallel-grouped clinical trial included sixteen patients with a single pontic site in the maxillary esthetic area presenting Seibert Class I ridge defects. Patients were randomly assigned into two equal groups: test group (n: 8) received soft tissue augmentation with connective tissue graft using the modified pouch technique and control group (n: 8) received soft tissue augmentation with connective tissue graft using pouch technique. The volumetric evaluation was carried out by taking impressions at baseline, 3 and 6 months after the surgery. Keratinized tissue thickness was also measured at baseline, 3 and 6 months after the surgery. Visual analogue scale (VAS) was recorded by the patients at day 3, day 7, and day 14 after the surgery.
The test group had more increase in soft tissue volume than the control group at baseline, 3 months, and 6 months. The keratinized tissue width at baseline in the test group had a higher value than that of the control group. At 3 months, both groups had the same mean value, while at 6 months, the test group had a higher value than the control group. Regarding postoperative pain, the visual analogue scale shown at day 3 in the test group had a higher value than that of the control group, while at day 7, the control group had a higher value than the test group. At day 14, both groups had the same mean value.
Soft tissue augmentation using both the traditional pouch technique and the modified pouch technique led to successful soft tissue volume augmentation in pontic site development in Seibert Class I ridge defects with no statistically significant difference between the two techniques.
本研究旨在比较在上颌美学区存在Seibert I类牙槽嵴缺损的患者中，采用结缔组织移植的袋形技术与改良袋形技术在桥体部位软组织增量方面的体积变化。这项随机、对照、双盲、平行分组的临床试验纳入了16例上颌美学区单个桥体部位存在Seibert I类牙槽嵴缺损的患者。患者被随机分为两组，每组8例：试验组采用改良袋形技术行结缔组织移植进行软组织增量，对照组采用袋形技术行结缔组织移植进行软组织增量。分别在基线、术后3个月和6个月取模进行体积评估。同时在基线、术后3个月和6个月测量角化组织厚度。患者在术后第3天、第7天和第14天记录视觉模拟评分（VAS）。
试验组在基线、术后3个月和6个月时软组织体积的增加均多于对照组。试验组基线时角化组织宽度高于对照组。术后3个月时，两组均值相同；术后6个月时，试验组高于对照组。关于术后疼痛，试验组术后第3天的视觉模拟评分高于对照组，术后第7天，对照组高于试验组。术后第14天，两组均值相同。
传统袋形技术和改良袋形技术在Seibert I类牙槽嵴缺损的桥体部位软组织增量中均能成功增加软组织体积，两种技术之间无统计学显著差异。
