关于患者满意度、义齿固位和适配性，对上颌不合适的全口义齿重衬与用计算机辅助设计/计算机辅助制造（CAD/CAM）铣削新义齿进行比较。
Comparison between relining of ill-fitted maxillary complete denture versus CAD/CAM milling of new one regarding patient satisfaction, denture retention and adaptation.
作者信息
Kamal Maha Nagy Mohamed
机构信息
Faculty of Dentistry, British University in Egypt (BUE), Shorouk, Egypt.
出版信息
BMC Oral Health. 2025 Jan 4;25(1):18. doi: 10.1186/s12903-024-05298-z.
PURPOSE
This study aimed to compare different treatment modalities to correct ill-fitted maxillary complete denture either by the conventional relining method or by scanning the relining impression and digitally construct a new denture regarding patient satisfaction, denture retention, and adaptation.
MATERIALS AND METHODS
Twelve edentulous patients suffering from loose maxillary complete dentures were selected, dentures' borders and fitting surfaces were prepared, and relining impressions were taken, the impressions were scanned and the STL files were used for CAD/CAM milling ( computer aided designing/ computer aided manufacturing) of new maxillary dentures (Group A), then the relining impression went through the conventional laboratory steps to fabricate (Group B) maxillary dentures. Both groups were evaluated regarding patient satisfaction by a specially designed questionnaire, retention values were measured by a digital force gauge at denture insertion appointment and two weeks later, geomagic software was used to evaluate dentures adaptation to oral tissues.
RESULTS
Both groups (A and B) were completely satisfied with their dentures except regarding esthetics, all group A and 50% of group B were satisfied. Both groups showed a statistically significant increase in retention values at the two-week follow-up period compared to those at denture insertion time, with higher values were for group B. Finally, the relined dentures showed better oral tissue adaptation than digitally constructed dentures.
CONCLUSION
Relined maxillary dentures showed better retention, esthetics, and denture adaptation with lower cost than digitally constructed maxillary dentures which showed acceptable retention and adaptation, with better time and data saving.
TRIAL REGISTRATION
Clinical trials number: NCT06366321. With registration date on ClinicalTrials.gov public website: 13/ 4/ 2024.
目的
本研究旨在比较不同的治疗方式，即通过传统重衬方法或扫描重衬印模并数字化构建新义齿，以纠正上颌全口义齿不合适的情况，评估患者满意度、义齿固位力和贴合度。
材料与方法
选取12例上颌全口义齿松动的无牙颌患者，准备义齿边缘和贴合面，制取重衬印模，扫描印模并使用STL文件进行新上颌义齿的计算机辅助设计/计算机辅助制造（CAD/CAM）铣削（A组），然后重衬印模经过传统实验室步骤制作上颌义齿（B组）。通过专门设计的问卷评估两组患者的满意度，在义齿戴入时和两周后使用数字测力计测量固位力值，使用Geomagic软件评估义齿与口腔组织的贴合度。
结果
除美观方面外，两组（A组和B组）对各自的义齿均完全满意，A组全部和B组50%的患者满意。与义齿戴入时相比，两组在两周随访期的固位力值均有统计学显著增加，B组的值更高。最后，重衬后的义齿比数字化构建的义齿显示出更好的口腔组织贴合度。
结论
与数字化构建的上颌义齿相比，重衬后的上颌义齿显示出更好的固位力、美观度和义齿贴合度，成本更低，数字化构建的上颌义齿显示出可接受的固位力和贴合度，且更节省时间和数据。
试验注册
临床试验编号：NCT06366321。在ClinicalTrials.gov公共网站上的注册日期：2024年4月13日。
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