Evidence map›Paper›PMID 42226307›Full record

Trial reportClinical oral implants research2026

Marginal Bone Loss Around Bone-Level Fully Guided Implants With Direct Implant Connection Versus Intermediate Abutment: A Randomized Clinical Trial.

Jordi Gargallo-Albiol, María José Zilleruelo-Pozo, Anna Treserra-Parra, Ernest Lucas-Taulé, Daniel Paternostro-Betancourt, Federico Hernandez-Alfaro

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Clinical oral implants research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06017115 (Evaluation of Straumann Bone Level Tapered® Implants Using Screwed Abutment Height in Partially Edentulous Patients), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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.

NCT06017115 nacompletednot on this map

Evaluation of Straumann Bone Level Tapered® Implants Using Screwed Abutment Height in Partially Edentulous Patients: a Randomized Controlled Clinical Trial

TypeinterventionalSponsorUniversitat Internacional de CatalunyaRan2017 to 2024Enrolled30ConditionsBone LossArmsDental implant placement with COVER SCREW (two surgeries in control group) or DEFINITIVE TRANSEPITHELIAL ABUTMENT (one surgery in test group)
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Jordi Gargallo-AlbiolDepartment of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain.ORCID https://orcid.org/0000-0002-9307-8258
María José Zilleruelo-PozoDepartment of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain.
Anna Treserra-ParraDepartment of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain.
Ernest Lucas-TauléDepartment of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain.ORCID https://orcid.org/0000-0002-7703-5733
Daniel Paternostro-BetancourtDepartment of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain.
Federico Hernandez-AlfaroDepartment of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Barcelona, Spain.

Funding

Straumann Institute
6 · The paper itself

Abstract

objectiveTo determine the influence of an intermediate prosthetic abutment on peri-implant marginal bone loss (MBL) around two implant-supported fixed restorations in the posterior area. MATERIAL AND

methodsThis study included patients with partial edentulism requiring two implants in the posterior maxilla or mandible. All implants were bone-level tapered implants, placed through a fully guided approach and finalized with a CAD/CAM temporary and final full zirconia restoration. The total sample comprised 30 patients (60 implants), divided into a Control group (direct to implant connection, non-intermediate abutment; 12 patients, 24 implants) and a Test group (intermediate abutment; 18 patients, 36 implants). The Test group was further divided into two abutment height subgroups: 1 mm (7 patients) and 2.5 mm (11 patients). MBL was measured using periapical x-ray imaging on the day of surgery, at definitive crown delivery, and at 4, 6, 12, and 24 months post-surgery.

resultsThe Test group (intermediate abutment) had lower MBL (0.83 ± 0.25 mm) than the Control group (1.17 ± 0.35 mm; p = 0.001). The secondary analysis of the abutment height subgroups did not differ significantly in MBL, although values showed a trend towards a more favorable for the highest intermediate abutment.

conclusionsThis randomized clinical trial demonstrated that direct implant connection prosthesis induced greater MBL around implants in splinted crowns for an implant-supported fixed restoration when compared with the use of an intermediate abutment.

trial registrationClinicalTrials.gov ID: NCT06017115.

Indexed as

Alveolar Bone LossDental AbutmentsDental Implant-Abutment DesignDental Implantation, EndosseousDental ImplantsDental Prosthesis, Implant-SupportedAdultAgedComputer-Aided DesignFemaleHumansJaw, Edentulous, PartiallyMaleMiddle AgedDental Implantscomputer‐assisted surgerydental implant‐abutment designdental implantsimplant‐supported dental prosthesis

Identifiers

PMID42226307
PMCPMC13446258

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.