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首页> 外文期刊>The Journal of Prosthetic Dentistry >Soft tissue correction of a single-tooth pontic space: a comparative quantitative volume assessment.
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Soft tissue correction of a single-tooth pontic space: a comparative quantitative volume assessment.

机译：单齿牙桥间隙的软组织矫正：比较定量评估。

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STATEMENT OF PROBLEM: Various augmentation procedures are recommended for the correction of localized alveolar ridge defects. However, no study has quantitatively evaluated the results of these procedures to date. PURPOSE: This study compared 2 soft tissue augmentation surgeries commonly used to alter contours of single-tooth pontic space by quantifying 3-dimensional volume changes with the optical projection Moire method at 1 and 3.5 months after surgery. MATERIAL AND METHODS: Twenty-four patients required surgery. Each patient had a localized alveolar ridge defect, corresponding to a mesial-distal width of 1 single tooth. The defect of 12 patients was corrected with a subepithelial connective tissue graft; the remaining 12 patients were treated by receiving a free full-thickness gingival graft, which included epithelium and connective tissue with fatty tissue. Six unoperated defects of 6 patients formed the control group. For each defect, an impression was made before treatment, at 1 and 3.5 months after surgery to measure the volume changes on the dental casts with a validated projection Moire system. Volume change was assessed relative to the preoperative dimension at the buccal and crestal aspects of the single-tooth pontic space. RESULTS: At 3.5 months postsurgery, mean volumetric gain for the connective tissue group with 159 mm(3) (SD +/- 80) was significantly greater (P =.027) than for free full-thickness gingival graft group with 104 mm(3) (SD +/- 31). CONCLUSION: The applied projection Moire method proved its applicability in assessing 3-dimensional volume changes of pontic spaces with a single-tooth width. Volumetric assessment after 1 and 3.5 months revealed significantly greater volume gain with the subepithelial connective tissue graft in comparison to the free full-thickness gingival graft.
机译：问题陈述：建议采用各种增强程序来纠正局部牙槽缺损。但是，迄今为止，尚无研究定量评估这些程序的结果。目的：本研究比较了两种软组织增生手术，这些手术通常在手术后1和3.5个月通过光学投影莫尔方法量化3维体积变化来改变单齿桥空间的轮廓。材料与方法：24例患者需要手术。每位患者都有一个局部的牙槽缺损，相当于1颗单颗牙齿的近中-远端宽度。上皮下结缔组织移植修复了12例患者的缺损。其余12例患者接受免费的全厚度牙龈移植物治疗，其中包括上皮和结缔组织及脂肪组织。对照组为6例患者的6个未手术的缺陷。对于每个缺损，在治疗前，手术后1和3.5个月进行印模，以使用经过验证的投影莫尔条纹仪测量牙模上的体积变化。相对于术前在单齿桥空间的颊和牙槽面尺寸评估了体积变化。结果：术后3.5个月，结缔组织组159 mm（3）（SD +/- 80）的平均体积增益显着大于自由全厚度牙龈移植组104 mm（3 = 0.027）（P = .027）。 3）（SD +/- 31）。结论：所应用的投影莫尔方法证明了其在评估单齿宽度的桥状空间的三维体积变化中的适用性。 1个月和3.5个月后的体积评估显示，与游离全厚度牙龈移植相比，上皮下结缔组织移植物的体积增加明显更大。

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