Complete digital workflow for the production of implant-supported single-unit monolithic crowns

被引:109
|
作者
Joda, Tim [1 ,2 ]
Braegger, Urs [1 ]
机构
[1] Univ Bern, Sch Dent Med, Div Fixed Prosthodont, CH-3010 Bern, Switzerland
[2] Univ Hosp Hamburg Eppendorf, Ctr Dent & Oral Med, Dept Prosthet Dent, D-20146 Hamburg, Germany
关键词
cad/cam; dental crown; dental implant; digital workflow; intraoral optical scan; resin nano ceramic (RNC); DENTISTRY;
D O I
10.1111/clr.12270
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objectives: The aim of this case series was to introduce a complete digital workflow for the production of monolithic implant crowns. Material and methods: Six patients were treated with implant-supported crowns made of resin nano ceramic (RNC). Starting with an intraoral optical scan (IOS), and following a CAD/CAM process, the monolithic crowns were bonded either to a novel prefabricated titanium abutment base (group A) or to a CAD/CAM-generated individualized titanium abutment (group B) in premolar or molar sites on a soft tissue level dental implant. Economic analyses included clinical and laboratory steps. An esthetic evaluation was performed to compare the two abutment-crown combinations. Results: None of the digitally constructed RNC crowns required any clinical adaptation. Overall mean work time calculations revealed obvious differences for group A (65.3 min) compared with group B (86.5 min). Esthetic analysis demonstrated a more favorable outcome for the prefabricated bonding bases. Conclusions: Prefabricated or individualized abutments on monolithic RNC crowns using CAD/CAM technology in a model-free workflow seem to provide a feasible and streamlined treatment approach for single-edentulous space rehabilitation in the posterior region. However, RNC as full-contour material has to be considered experimental, and further large-scale clinical investigations with long-term follow-up observation are necessary.
引用
收藏
页码:1304 / 1306
页数:3
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