Evidence map›Paper›PMID 34068734›Full record

ArticleDentistry journal2021

Factors Influencing the Accuracy of Freehand Implant Placement: A Prospective Clinical Study.

Sigmar Schnutenhaus, Marie Wagner, Cornelia Edelmann, Ralph G Luthardt, Heike Rudolph

Abstract read
In one paragraph

Article in Dentistry journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Sigmar SchnutenhausCenter of Dentistry, Dr. Schnutenhaus MVZ GmbH, 78247 Hilzingen, Germany.ORCID 0000-0003-3593-7074
Marie WagnerDepartment of Prosthetic Dentistry, Center of Dentistry, Ulm University, 89081 Ulm, Germany.
Cornelia EdelmannCenter of Dentistry, Dr. Schnutenhaus MVZ GmbH, 78247 Hilzingen, Germany.
Ralph G LuthardtDepartment of Prosthetic Dentistry, Center of Dentistry, Ulm University, 89081 Ulm, Germany.
Heike RudolphDepartment of Prosthetic Dentistry, Center of Dentistry, Ulm University, 89081 Ulm, Germany.ORCID 0000-0002-0746-3003

Funding

Oral Reconstruction Foundation (former Camlog Foundation) CF 41.506
6 · The paper itself

Abstract

(1) Background: The objective of implant prosthetic restoration is to ensure the best possible rehabilitation of function and esthetics. Optimal positioning of the implant with regard to the bone availability, surrounding soft tissue, and prosthetic sustainability should be strived for during implant placement. The factors influencing freehand implant placement and the accuracy achieved with this procedure are investigated in this prospective clinical study. (2) Methods: Implants were placed in the single-tooth edentulous sites of the premolar and molar areas in 52 patients. Three-dimensional (3D)-planning was performed virtually prior to the freehand implant operation, and the desired position of the implant was provided to the surgeon. (3) Results: The deviations between the planned and the actually achieved position with freehand implant placement showed the following mean values and standard deviations: angle 8.7 ± 4.8°, 3D deviation at the implant shoulder 1.62 ± 0.87 mm, mesiodistal deviation 0.87 ± 0.75 mm, buccolingual deviation 0.70 ± 0.66 mm, and apiocoronal deviation 0.95 ± 0.61 mm. The type of jaw had a significant influence on accuracy. Major deviations were observed in the lower jaw. Furthermore, the timing of implant placement influenced the mesiodistal deviation and angular deviation; (4) Conclusions: Freehand implant placement demonstrated a higher level of deviation between the planned and actually achieved implant positions. In particular, the ranges showed a large spread. From a prosthetic point of view, there may be complications during the restoration of the prosthetic crown if the implant exit point is not optimally located or if the implants show a high angular deviation.

Indexed as

accuracycomputer-assisted surgerycomputer-guided surgerycone-beam computed tomographydental implantfreehand

Identifiers

PMID34068734
PMCPMC8151810

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.