Intraoral digital impression for fabricating a replica of an implant-supported interim prosthesis

Lee, Ju‐Hyoung

doi:10.1016/j.prosdent.2015.06.024

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…In fact these machines enable all the dental and gingival information required to be obtained with a beam of light [ 7 , 8 ] and with an accuracy, precision, and image resolution significantly higher than that obtained from CT (and even CBCT). The information obtained can be easily combined and superimposed on bone architecture information, thanks to open reverse-engineering software or proprietary software [ 11 , 12 ]. It is therefore possible to create a virtual model of the patient, containing all the information required (bone, tooth, and gum) to carry out the intervention for implant placement using surgical guides supported on the teeth [ 12 ].…”

Section: Discussionmentioning

confidence: 99%

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From Guided Surgery to Final Prosthesis with a Fully Digital Procedure: A Prospective Clinical Study on 15 Partially Edentulous Patients

Dolcini

Colombo

Mangano

2016

International Journal of Dentistry

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Scope. To demonstrate guided implant placement and the application of fixed, implant-supported prosthetic restorations with a fully digital workflow. Methods. Over a 2-year period, all patients with partial edentulism of the posterior maxilla, in need of fixed implant-supported prostheses, were considered for inclusion in this study. The protocol required intraoral scanning and cone beam computed tomography (CBCT), the superimposition of dental-gingival information on bone anatomy, surgical planning, 3D-printed teeth-supported surgical templates, and modelling and milling of polymethylmethacrylate (PMMA) temporaries for immediate loading. After 3 months, final optical impression was taken and milled zirconia frameworks and 3D-printed models were fabricated. The frameworks were veneered with ceramic and delivered to the patients. Results. Fifteen patients were selected for this study. The surgical templates were stable. Thirty implants were placed (BTK Safe®, BTK, Vicenza, Italy) and immediately loaded with PMMA temporaries. After 3 months, the temporaries were replaced by the final restorations in zirconia-ceramic, fabricated with a fully digital process. At 6 months, none of the patients reported any biological or functional problems with the implant-supported prostheses. Conclusions. The present procedure for fully digital planning of implants and short-span fixed implant-supported restorations has been shown to be reliable. Further studies are needed to validate these results.

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Section: Discussionmentioning

confidence: 99%

“…The composition and superimposition of dental and gingival information acquired by intraoral scanning, as well as bone information acquired by CBCT, now allow virtual planning for placing the implants, fabricating the templates for guided surgery, and modelling and preparing temporaries for immediate loading [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

From Guided Surgery to Final Prosthesis with a Fully Digital Procedure: A Prospective Clinical Study on 15 Partially Edentulous Patients

Dolcini

Colombo

Mangano

2016

International Journal of Dentistry

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“…The only way to keep precise characteristics of the emergence profile would be to superimpose a scanned image of the subgingival portion of the temporary crown onto the scanned image of the dental arch with the implant. This would significantly reduce a discrepancy between a digitally planned and actual intraoral position of the shoulder, but the technique is not yet commercially available [ 31 – 33 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of concordance between CAD/CAM and clinical positions of abutment shoulder against mucosal margin: an observational study

Pietruski¹,

Skurska

Bernaczyk³

et al. 2018

BMC Oral Health

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BackgroundWhile working on CAD/CAM-customized abutments, the use of standard impression copings with a circular diameter produces inconsistency within the emergence profile. It may begin with a collapse of the supra-implant mucosa during impression taking, then lead to a computer-generated mismatch of the position and outline of the abutment shoulder, and consequently result in a compromised outcome of anticipated treatment. The aim of the study was to compare the virtual and clinical positions of the abutment shoulder in relation to the mucosal margin after the abutment delivery.MethodsConventional open-tray impression takings followed uncovering surgery. Master casts were scanned with a desktop scanner. Clinical examinations took place after abutment’s insertion and temporization (T1) and prior to cementation of the definitive crown (T2). The distances between the abutment shoulder and marginal soft tissue were measured intraorally in four aspects and juxtaposed with those on the virtual model.ResultsThe study evaluated 257 dental implants and CAD/CAM-customized abutments. As T1 and T2 showed, there was a positive correlation between the virtually designed abutment shoulder position and matching clinical location relative to the mucosal margin. In 42.1% of cases, the distance between the mucosal margin and the abutment shoulder did not change. It increased in 36.3% of cases while a decrease occurred in 21.6% of them.ConclusionsComputer-set position of the abutment shoulder in relation to the mucosal margin can be predictably implemented in clinical practice.

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“…4 The use of an intraoral scanner for capturing a digital scan to fabricate a restoration is widely accepted because such devices have high precision, are time efficient, and are straightforward to operate. [5][6][7] The obtained optical scan can be combined with a 3D object reconstructed from a cone beam computed tomography (CBCT) scan to design a surgical guide and interim prosthesis before surgery. 8 Interim prostheses can be fabricated conventionally or by computer-aided design and computer-aided manufacturing (CAD-CAM).…”

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confidence: 99%

An alternative technique for fabricating an implant-supported interim prosthesis by using a fully digital approach

Lin

Tang

Zhang

2022

The Journal of Prosthetic Dentistry

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Intraoral digital impression for fabricating a replica of an implant-supported interim prosthesis

Cited by 9 publications

References 19 publications

From Guided Surgery to Final Prosthesis with a Fully Digital Procedure: A Prospective Clinical Study on 15 Partially Edentulous Patients

From Guided Surgery to Final Prosthesis with a Fully Digital Procedure: A Prospective Clinical Study on 15 Partially Edentulous Patients

Evaluation of concordance between CAD/CAM and clinical positions of abutment shoulder against mucosal margin: an observational study

An alternative technique for fabricating an implant-supported interim prosthesis by using a fully digital approach

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