Park Yeon-Hee, Kim Kyoung-A, Lee Jung-Jin, Kwon Tae-Min, Seo Jae-Min
Department of Prosthodontics, School of Dentistry, Jeonbuk National University, Research Institute of Clinical Medicine of Jeonbuk National University - Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea.
Department of Dentistry, Daejeon Konyang Medical Center, Konyang University, School of Medicine, Daejeon, Republic of Korea.
J Adv Prosthodont. 2022 Jun;14(3):162-172. doi: 10.4047/jap.2022.14.3.162. Epub 2022 Jun 27.
The present study aims to analyze the effect of abutment neck taper and types of cement on the amount of undetected remnant cement of cement-retained implant prostheses.
Three neck taper angles (53°, 65°, 77°) and three types of cement (RMGI: resin-modified glass ionomer, ZPC: zinc phosphate cement, ZOE: zinc oxide eugenol cement) were used. For each group, the surface percentage was measured using digital image and graphic editing software. The weight of before and after removing remnant cement from the abutment-crown assembly was measured using an electronic scale. Two-way ANOVA and Duncan & Scheffe's test were used to compare the calculated surface percentage and weight of remnant cement (α = .05).
There were significant differences in remnant cement surface percentage and weight according to neck taper angles ( < .05). However, there were no significant differences in remnant cement surface percentage and weight on types of cement. No interaction was found between neck taper angles and types of luting cement ( > .05). The wide abutment with a small neck taper angle showed the most significant amount of remnant cement. And the types of luting cement did not influence the amount of residual cement.
To remove excess cement better, the emergence profile of the crown should be straight to the neck taper of the abutment in cement-retained implant restoration.
本研究旨在分析基台颈部锥度和粘结剂类型对粘结固位式种植义齿未被发现的残余粘结剂数量的影响。
使用三种颈部锥度角(53°、65°、77°)和三种粘结剂(RMGI:树脂改性玻璃离子水门汀、ZPC:磷酸锌水门汀、ZOE:氧化锌丁香酚水门汀)。对于每组,使用数字图像和图形编辑软件测量表面百分比。使用电子秤测量从基台 - 牙冠组件上去除残余粘结剂前后的重量。采用双向方差分析以及邓肯和谢费检验来比较计算出的残余粘结剂表面百分比和重量(α = 0.05)。
根据颈部锥度角,残余粘结剂表面百分比和重量存在显著差异(P < 0.05)。然而,粘结剂类型在残余粘结剂表面百分比和重量方面没有显著差异。在颈部锥度角和粘结水门汀类型之间未发现相互作用(P > 0.05)。颈部锥度角小的宽基台显示出的残余粘结剂数量最多。并且粘结水门汀的类型不影响残余粘结剂的数量。
在粘结固位式种植修复中,为了更好地去除多余的粘结剂,牙冠的龈缘外形应与基台的颈部锥度保持一致。