Abstract：
OBJECTIVE: To assess the impact of a two-piece abutment workflow on enhancing the stability of the alveolar bone and gingiva surrounding the dental implant, and to determine the level of patient satisfaction.
METHODS: A total of 48 patients with dentition defect in the posterior region were included and divided into two groups: the two-piece abutment workflow (TAW) and the sealing screw with submerged healing workflow (SHW). Marginal bone level (MBL), soft tissue indicators, oral hygiene indicators, and patient satisfaction were assessed and recorded partially at 0, 3, 6, and 12 months after surgery. The primary outcome was the change of MBL in different time periods. A generalized linear mixed model (GLMM) was used to take into account the correlated nature of the data, and adjust for potential confounding factors within inter-group differences.
RESULTS: The survival rate of implants and prosthesis reached 100% at 12-month follow-up, with an average decrease of 0.25 mm (SD 0.23 mm) of MBL in the TAW group and 0.48 mm (SD 0.45 mm) in the SHW group. The change of MBL in the TAW group (0.15 ± 0.31 mm) was significantly lower than the SHW group (0.41 ± 0.41 mm) through the analysis of GLMM within 6 months, while no significance was found in 12 months. Moreover, less gingival pain and oppression during prosthesis loading, and less time consumption overall duration were showed in the TAW group through Visual Analogue Scale (VAS, p < 0.05).
CONCLUSIONS: Within a 6-month period, the two-piece abutment workflow showed superior efficacy in preserving the integrity of the marginal bone level. Furthermore, it streamlined treatment procedures and mitigated discomfort, hence increasing patient satisfaction.
METHODS: A total of 48 patients with dentition defect in the posterior region were included and divided into two groups: the two-piece abutment workflow (TAW) and the sealing screw with submerged healing workflow (SHW). Marginal bone level (MBL), soft tissue indicators, oral hygiene indicators, and patient satisfaction were assessed and recorded partially at 0, 3, 6, and 12 months after surgery. The primary outcome was the change of MBL in different time periods. A generalized linear mixed model (GLMM) was used to take into account the correlated nature of the data, and adjust for potential confounding factors within inter-group differences.
RESULTS: The survival rate of implants and prosthesis reached 100% at 12-month follow-up, with an average decrease of 0.25 mm (SD 0.23 mm) of MBL in the TAW group and 0.48 mm (SD 0.45 mm) in the SHW group. The change of MBL in the TAW group (0.15 ± 0.31 mm) was significantly lower than the SHW group (0.41 ± 0.41 mm) through the analysis of GLMM within 6 months, while no significance was found in 12 months. Moreover, less gingival pain and oppression during prosthesis loading, and less time consumption overall duration were showed in the TAW group through Visual Analogue Scale (VAS, p < 0.05).
CONCLUSIONS: Within a 6-month period, the two-piece abutment workflow showed superior efficacy in preserving the integrity of the marginal bone level. Furthermore, it streamlined treatment procedures and mitigated discomfort, hence increasing patient satisfaction.
摘要：
目的：评估两件式基牙工作流程对增强牙种植体周围牙槽骨和牙龈稳定性的影响，并确定患者的满意度。
方法：共纳入48例后牙列缺损患者，分为两组：两件式基牙工作流程（TAW）和具有浸没式愈合流程的密封螺钉（SHW）。边缘骨水平（MBL），软组织指标,口腔卫生指标,在手术后0,3,6和12个月对患者满意度进行部分评估和记录.主要结果是MBL在不同时间段的变化。使用广义线性混合模型(GLMM)来考虑数据的相关性质，并调整组间差异内的潜在混杂因素。
结果：在12个月的随访中，植入物和假体的存活率达到100％，TAW组MBL平均减少0.25mm（SD0.23mm），SHW组平均减少0.48mm（SD0.45mm）。6个月内通过GLMM分析,TAW组MBL变化(0.15±0.31mm)明显低于SHW组(0.41±0.41mm),而在12个月内没有发现显著性。此外，假体加载过程中牙龈疼痛和压迫较少，通过视觉模拟评分(VAS，p<0.05)。
结论：在6个月内，两件式基台工作流程在保持边缘骨水平的完整性方面显示出优异的疗效。此外，它简化了治疗程序，减轻了不适，提高患者满意度。
方法：共纳入48例后牙列缺损患者，分为两组：两件式基牙工作流程（TAW）和具有浸没式愈合流程的密封螺钉（SHW）。边缘骨水平（MBL），软组织指标,口腔卫生指标,在手术后0,3,6和12个月对患者满意度进行部分评估和记录.主要结果是MBL在不同时间段的变化。使用广义线性混合模型(GLMM)来考虑数据的相关性质，并调整组间差异内的潜在混杂因素。
结果：在12个月的随访中，植入物和假体的存活率达到100％，TAW组MBL平均减少0.25mm（SD0.23mm），SHW组平均减少0.48mm（SD0.45mm）。6个月内通过GLMM分析,TAW组MBL变化(0.15±0.31mm)明显低于SHW组(0.41±0.41mm),而在12个月内没有发现显著性。此外，假体加载过程中牙龈疼痛和压迫较少，通过视觉模拟评分(VAS，p<0.05)。
结论：在6个月内，两件式基台工作流程在保持边缘骨水平的完整性方面显示出优异的疗效。此外，它简化了治疗程序，减轻了不适，提高患者满意度。
